OpenSSH Download Linux

A free version of the SSH (Secure Shell) protocol for all GNU/Linux operating systems

OpenSSH is a freely distributed and open source software project, a library and command-line program that runs in the background of your GNU/Linux operating system and protects your entire network from intruders and attackers. It is the open source version of the SSH (Secure Shell) specification, specifically designed for

OpenSSH is an open source project distributed under a free license. It offers strong authentication based on the Public Key, Kerberos Authentication and One-Time Password standards, strong encryption based on the AES, Blowfish, Arcfour and 3DES algorithms, X11 forwarding supports by encrypting the entire X Window System traffic, as well as AFS and Kerberos ticket passing.

Additionally, the software feature port forwarding support by encrypting channels for legacy protocols, data compression support, agent forwarding support by using the Single-Sign-On (SSO) authentication standard and SFTP (Secure FTP) server and client support in either SSH2 or SSH1 protocols.

Another interesting feature is interoperability, which means that the project complies with versions 1.3, 1.5 and 2.0 of the original SSH (Secure Shell) protocol. After installation, OpenSSH will automatically replace the standard FTP, Telnet, RCP and rlogin programs with secure versions of them, such as SFTP, SCP and SSH.

The OpenSSH project is written entirely in the C programming language. It comprised of the main SSH implementation and the SSH daemon, which runs in the background. The software is distributed mainly as a universal sources archive, which will work with any GNU/Linux operating systems on both 32-bit and 64-bit architectures.

A portable version of the OpenSSH protocol is also available for download on Softpedia, free of charge, called Portable OpenSSH. It is an open source implementation of SSH version 1 and SSH version 2 protocols for Linux, BSD and Solaris operating systems.

This release includes a number of changes that may affect existing configurations:

This release removes server support for the SSH v.1 protocol.

Setting Up SSH Secure Shell Client

This guide will show you how to install, set-up, and use SSH Secure Shell Client for a PC running Microsoft Windows. (Linux and Macintosh users can follow the same general outline). It is intended as a guide for students taking Computer Science courses at the University of Tennessee who want to access their account from their home PC. Web page images have been borrowed from the

This guide was designed using Microsoft Windows XP and Microsoft Internet Explorer 6.0.

1.On your home PC. Start an internet browser.

3.Select Online Store as shown below:

4.Select SSH Secure Shell for Workstations as shown below:

5.Move to the bottom of the page and select the Download non-commercial version button as shown below:

6.Read the License Agreement for the non-commercial version. Using SSH to remotely access your computer science account falls under the heading of Educational Use.After reading the License Agreement answer Yes, I Agree if you want to continue 馃檪

7.You will have to go through a short registration process. It does not take long. Fill in the information requested and download the software.

9.Two icons will appear on your desktop after you have installed the software.

10.Double-Click on the icon that looks like a folder with some bubbles arcing through it- it is called SSH Secure File Transfer Client.

11.Click on the Quick Connect button to open the Connect to Remote Host window.Enter the host (computer) you want to remotely login to in the Host Name: field.

The host name will be of the form LabnameNumberLetter.cs.utk.edu, where:Labname = hydra OR cetusNumber = 1, 2, 3, 4, 5, OR 6 (May also include 7 and 8- check the lab!!)Letter = a, b, c, OR d (May also include e and f- check the lab!!)Examples: hydra4a.cs.utk.eduORcetus3d.cs.utk.eduEnter YOUR username in the User Name: field. THIS IS YOUR COMPUTER SCIENCE ACCOUNT USERNAME! NOT YOUR UNIVERSITY OF TN USERNAME!!!!Click on the Connect button.

12.NOTE: If this is the first time you have tried to login to a new Host OR if the Host identification has changed then you WILL see the Host Identification query window as shown below. Just click on the Yes button. You may or may not see this window every time you attempt to connect to the host. The host identification key changes sometimes so you may see this even if you have connected to this host before.

13.Now you will see the Enter Password window. Enter YOUR password that goes with your Computer Science account. Then click on the OK button.

14.THINK FAST!! Select the Add Profile field and type in a Profile name for this Host/username connection. IMPORTANT NOTE: In the future when you want to connect to Host: hydra4a.cs.utk.edu click on the Profiles button to the right of the Quick Connect button, instead of clicking on the Quick Connect button! This will take you to a screen that has a list of profiles you have already created. Select the one you want and it will prompt you for a password. You no longer have to enter the host name information 馃檪

This is the SSH Secure File Transfer window. The files in your home area should appear fast or slow depending on your connection speed. You can now access your files directly, or just drag and drop them to your desktop if you want to print them out. BEWARE of editing your files in a windows text editor and dropping them into your home area to submit for a labTHIS WILL NOT WORK (most of the time). TRY THIS ONCE AND YOU WILL UNDERSTAND WHY YOU WILL NEVER WANT TO DO IT AGAIN!!! If you do this and then access the same file from one of the lab machines physically in the lab you will see a bunch of garbage characters at the end of each line, sometimes your code will not compile, things can happen, DONT DO IT!

15.So you want a Terminal Window like you have in lab. Click on the New Terminal Window button and a terminal window will pop up.

16.Terminal Window: The commands are the same unix commands that you normally use. Some things like mouse copy/paste are different or will not work. Otherwise everything should be similar to when you are physically in the lab. It is OK to edit files using vi or any other unix editor in this terminal window (YOULL NEVER HAVE TO WORK IN THE LABS AGAIN :))

Keep in mind your lpr print command will still send to the default printer in one of the labs, so make sure you use the SSH Secure File Transfer window to copy the file from your home area to your desktop before you try to print a file to your home printer. You can also experiment with the SSH print functions. I believe they just print out the current screen.

Dont forget to close the connection when you close the program. It will prompt you. Just answer Yes.

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Using SSH Secure Shell for Windows how do I set up public key authentication?

This document assumes you are usingSSHSecure Shell for Windows, produced byTectia, on your local computer and OpenSSH on the remote host.

Note:SSH Secure Shell Client for Windows is no longer available for download fromIUwareor SSH Communications. For alternative SSH and SFTP clients, seeAt IU, what SSH/SFTP clients are supported and where can I get them?

Public keyauthenticationis a security method you can use to remotely log into a server. Because it uses encrypted keys, it can be more secure than merely using a password. For secured client systems, you can use public key authentication to eliminate the need to enter a password when connecting to a server.

There is a potential security risk in configuring public key authentication to allow access without a password to a server. Because the login process is automatic, your accounts may be compromised if someone gains access to your workstation. Other users can launch the SSH client and access your account without knowing your password.UITSrecommends that you password protect the keys themselves. Youll still need to enter a password (for the private key rather than for the server), but public key authentication is intended to provide added security. Avoiding password authentication can be convenient, but that should not override security concerns. Analyze your situation before implementing public key authentication in a way that allows you to avoid entering your password to a server.

To set up public key authentication from SSH Secure Shell for Windows:

. In the window that appears, click

From the drop-down list next to Key Type:, select from the following:

If you want to take less time to initially generate the key, select

If you want to take less time during each connection for the server to verify your key, select

From the the drop-down list next to Key Length:, select at least

. You may choose a greater key length, but the time it takes to generate the key, as well as the time it takes to authenticate using it, will go up.

Although experts debate whether DSA or RSA is superior, for all practical purposes, the debate is irrelevant to your day-to-day use. The differences are minute, and are important only to cryptologists. The only practical difference you will see is a small difference in the time it takes to authenticate (RSA is faster). Just make sure your key length is set to at least 1024.

. The key generation process will start. When its complete, click

In the File Name: field, enter a name for the file where SSH Secure Shell will store your private key. Your public key will be stored in a file with the same name, plus a

Here you must decide whether or not to secure your private key with a password. If you do not, then authentication will occur automatically, and you wont be prompted to enter any password. If you do, youll receive a prompt each time asking for your Passphrase for Private Key, which will be the password you create here, not your IU password. Again, refer to the warning above regarding the potential security risk in not securing the key. UITS strongly recommends that you enter a passphrase when generating a public and private key pair. If you choose not to, anyone who has access to your private key can authenticate to your account automatically.

In the boxes next to Passphrase:, enter a passphrase for your private key, or leave the boxes empty if you do not want to protect your private key with a passphrase.

To complete the key generation process, click

Connect to your remote host using your normal password. Once you have connected, from the

In the window that opens, change the entry next to Destination folder: so that it reads

Below that, in the Authorization file: field, change the entry from

On the remote host, convert your public key to the format used by OpenSSH and add it to your

ssh-keygen -f ~/.ssh/filename.pub -i ~/.ssh/authorized_keys

Replacefilename.pubwith the name of the file containing your public key (i.e., the file with the.pubextension from step 5 above).

Replacefilename.pubwith the name of the file containing your public key. When you are prompted, confirm the deletion.

UITS recommends that you delete the file, but its not absolutely necessary. While it may be a risk to leave an unused copy of your authentication key, a malicious user would have to break into your account to see it. Malicious users who know Unix basics could just as easily read or steal theauthorized_keysfile if they are already in your account. However, its still a good idea to delete that copy of the key. Its no longer necessary, and its always good security practice to remove potential risks, even if you cannot predict how they can be used.

You are now finished. Repeat steps 8-14 for each remote host you want to log into using public key authentication.

The next time you make a connection to the remote host, when you see the connection dialog box, change the Authentication Method: field toPublic Key. You will be prompted for the passphrase for your private key (if you supplied one). This passphrase is not sent to the remote host. If you did not supply a passphrase for your private key, you will not receive a request for a passphrase when connecting to the remote host. The terminal will simply open.

To change the authentication method permanently, before ending your session, from theFilemenu, selectSave Settings. Alternatively, modify the SSH profile for that server, as follows:

In the list on the left, select the profile you want to modify. Then on the right, select the

Under Authentication methods:, select

. Then click the up arrow in the upper right corner across from the heading Authentication methods: as many times as necessary to move it to the top.

This is documentamzxin the Knowledge Base.

Last modified on2013-01-03 00:00:00.

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Advanced Secure Shell 6 Things You Can Do With SSH

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Advanced Secure Shell: 6 Things You Can Do With SSH

Advanced Secure Shell: 6 Things You Can Do With SSH

We talk about different situations in which SSH can help secure your network protocols, and demonstrate how to work with SSH via the command line.

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SecureShell is a network protocol that enables secure connections. It is heavily used to connect to servers, make changes, upload things, and exit. Sometimes these actions happen via tools and sometimes directly via the terminal. Here youll learn some things about using SSH in the terminal that go beyond the standardssh[email protected].

Lets dive right into the advanced SSH techniques, assuming you already know the basic technique for security and usability:SSH keys. For this article, we will useuseras the SSH user andyourserver.tldas the domain or IP that you need to replace with the correct username and host data. In order to change the configuration of SSH server-side, you will need root access either via logging in as root or via a user with sudo rights. In order for your system-wide changes in/etc/ssh/sshd_configto take effect, you will need to reload the SSH service. Depending on your operating system, this can be done, for example, on Debian-based systems, by enteringservice ssh reloadinto the terminal as root or with sudo rights. Every time you change something on the server-side SSH configuration, you will need to reload (or restart) the service.

Configuration Order.Same as with other Linux system tools, the order with which configuration options are taken, is as follows:

This means that any parameter that is input while executing an SSH command takes precedence over the options that are in configuration files, so commands that are used only once are the best input directly whereas specific hosts you connect to often or with different usernames are best kept in the configuration files. The system-wide configuration file for the SSH daemon itself can be found inetc/ssh/sshd_config.

Host Matching.There is a wildcard matching in the SSH configuration files which means that you can apply a set of directives to a wider range of hosts and then use specific directives for each host, for example:

Host myhost-* Port 1234 Host myhost-one Hostname myhost-one.yourserver.tld User admin Host myhost-two Hostname myhost-two.yourserver.tld User anotheradmin

In the above example, connections to both servers will go through port 1234 using different usernames. With these basics, lets start with 6 things you can do with SSH.

I want to access files stored on my server without installing anything extra.

Most FTP applications (for exampleFileZilla) can use SFTP (SSH File Transfer Protocol) and it is the preferred way to transfer files to your web host. You put the address, port, and username of your SSH connection and are ready to transfer files easily with a GUI. Usually, you need to go to the settings of the application you are using in order to use your private SSH key for connections when the password is disabled.

On the terminal, you can use SFTP by enteringsftp[email protected]which brings you to an interactive console within the terminal. Keep in mind that you cannot use all SSH commands within this console as it is SFTP with limited command options, like creating directories, browsing accessible directories, and downloading/uploading files. For more information, you can start with readingSFTP Using Command Line.

My firewall keeps shutting down my connection!

Sometimes you need to keep a connection alive because the firewall you are behind wants to terminate the connection. There are three directives that can prevent an SSH connection from being dropped too early.

can be used in both the SSH client and daemon configuration files. It decides whether to send TCP messages to keep a connection standing. The default argument is

. If the TCP messages are sent, a crash or connection drop will be noticed, which might not always be wanted and some users will want to set this to

, if their firewall keeps terminating the session or they are using internet that suffers from connection drops.

in the client configuration specifies the seconds that the client will wait before sending a packet to the server to verify whether the connection is still alive. Setting the value to 0 disables this option which disconnects the SSH session after some idle time. The directive

specifies how many times this packet will get sent before a connection is canceled if no response from the server is available.

is a directive to be used in the SSH daemon configuration file

. It specifies the seconds that the server will wait until it sends a packet to the client. Setting this to 0 disables the option. The directive

is an integer value of how often the packet will get sent before terminating a connection if no response from the client is received.

A clients SSH config file that has the same keep alive settings for all hosts looks like this:

This configuration means that the client will wait 30 seconds before sending a null packet and will try that up to 10 times until it will accept that the connection can be dropped if the server does not reply.

I am so annoyed that I have to put in my passphrase every time, maybe I should just generate keys without passphrases?

A common and valid security practice is to encrypt your SSH private key and use a passphrase to decrypt it. The downside of this is that you have to retype your passphrase every time you initiate an SSH connection which can be burdensome, it is essentially a password to retype repeatedly. In order to solve this, you can usessh-agent. It is a tool that keeps private keys in memory during a session. When the agent is started, all windows and applications that need an SSH connection will refer to the agent to get your private key, so you only have to type your passphrase once at the beginning of your session.

On most Linux systems, ssh-agent is running by default, so no further installation is needed. If you want to check whether ssh-agent is running, you can do so via the terminal:

If it is not running yet, you can start it with:

Once it is running, you can list all keys currently available to the ssh-agent with:

If the key you want to use is missing, you can add it viassh-add /path/to/your/ssh/privatekey. When you are trying to connect to a host and get the errorToo many authentication failures for user, it means that the ssh-agent is trying to go through all keys available. The best option is to define anIdentityFile /path/to/your/ssh/privatekey/forthishostin your config file. If you want to make sure that your connection will only allow the IdentityFile you define, you can use the directiveIdentitiesOnly yesin your config, which tells SSH to use only those keys that are provided via the terminal or config file. An example of this is as follows:

Im so going to just type the passphrase once at startup and not bother with it again, even when I connect from host to host.

Agents can also be forwarded in order to be able to use the same credentials from connected host to connected host. While this is convenient, keep in mind that an agent holds your private key in memory. A malicious program on one of the connected hosts can use your key to execute commands while you are connected. Agent forwarding is thus an unsafe method and should only be used when you are connecting to machines that you trust.

In order to use agent forwarding, you need to setForwardAgent yesin your clientsssh_configandAllowAgentForwarding yeson your/etc/ssh/sshd_configon each server you want to use the agent forwarding on.

I want to do things that arent allowed on my computer but I know a machine from where they are allowed.

Tunneling is one of the most common advanced use cases for SSH. It encrypts application traffic inside an SSH connection and protects possibly unsafe data traffic, which is especially useful as a connection to legacy software or otherwise poorly secured applications and systems, thereby making it a security wrapper for software that cannot or will not be changed and is unsafe to use for data traffic on its own.

Server-side changes are configured in the file/etc/ssh/sshd_config. Lines with a leadingare comments, so if you need one of those options, you can either duplicate the line and make your changes or uncomment the original line. For tunneling, specifically port forwarding, to work, you will need to allow TCP forwarding.

Reload the SSH service if you made changes to the server configuration file. How to reload or restart a service on your server depends on your operating system. In most cases, the following should work:

There are several ways to use SSH tunnels. In most use cases, you will use SSH tunnels to achieve something like this:

You want to execute some queries on a database that is only accessible through another machine, so you will tunnel your connection through that machine. The following example shows how to tunnel to a PostgreSQL database server via

and then use the terminal-based psql frontend from there.

ssh -L 5000:psql.server.ip:5432 psql -p 5000 -h 127.0.0.1 -U postgres

Some websites are blocked in your network, so you will tunnel into a machine that allows these connections and surf these websites from there. The following command enables you to use your local machine to tunnel into a machine where the website is not blocked. On your local computer, you can then open your browser using the address

ssh -L 1337:yourwebsite.com:80 [email protected]

There is some really expensive software on the server that I dont have a license for – I could just connect to the server and display the software on my home screen.

You can initiate X11 forwarding via SSH, meaning you can display the remote computers desktop environment and forward X11 packets to the computer that you are using. This is useful in some cases, specifically where you have to use the GUI of a specific software. In our case, well test X11 forwarding withxclock.

Thexauthpackage must be installed on the server in order to forward X11 packets to the client. If you want to testxclock, you will have to install that as well.

On the server, you will need to enable X11Forwarding in/etc/ssh/sshd_config. Look for a line withX11Forwardingand set it to yes. If it is already there and commented out, you need to uncomment it by deleting the leading.

Do not forget to reload the SSH service in case you had to change the configuration file.

You should now be using X11 forwarding from the server to your client machine. By typingxclock, a window with a clock should pop up on your desktop machine, as shown in the screenshot.

X11 forwarding is a great tool when you want to use a software that due to licensing reasons can be installed only on one server or has different performance needs than your normal computer can provide.

I want to access my private network that has no connection to the outside world – Ill set up a server I can connect to and then jump to the machines I need from there.

A common access strategy when using SSH is to connect to abastionand then from there jump to devices, which have no public routes. This bastion is then referred to as the first jump host in which can be a chain of proxies.ProxyJumpis a new addition to OpenSSH which simplifies using jump hosts. This is used as an additional layer of security for machines that you dont want to have exposed publicly.

One use case for this is to have a small machine that serves as a bastion entity behind a router where you run your sshd and jump to other hosts from there – this can, for example, be useful for home networks. This is not much different from port forwarding and tunneling from one machine to the next, except there is now a keywordProxyJumpenabled for this use case and multiple jump hosts can be specified in one go, via a comma-separated list containing[[email protected]]host[:port]. In the terminal, the usage is via the-Jparameter, like this:

For a more complicated version jumping through several hosts and with different usernames, use this:

Since jump hosts are something you would most likely use on a regular basis, it is advisable to include them in your user or system-wide SSH config. The above example in a config file would look as follows:

You could also specify SSH configurations for each of the jump hosts and use their aliases in the configuration for the host that uses ProxyJump.

Host firstproxy HostName proxy.server1.tld Port 1234 User user1 Host secondproxy HostName proxy.server2.tld Port 5678 User user2 Host yourserver.tld HostName yourserver.tld ProxyJump firstproxy,secondproxy User user

Note that the newProxyJumpand the older directiveProxyCommandcompete with each other on a first come, first serve basis – that means whichever is specified first, counts. Every subsequent command will be disregarded. If ProxyJump is not supported by your SSH client, you can replace the ProxyJump directive byProxyCommand ssh firstproxy -W %h:%p.

Find out how Warateks award-winningapplication security platformcan improve the security of yournew and legacy applications and platformswith no false positives, code changes or slowing your application.

Published at DZone with permission of Sanja Bonic, DZone MVB.See the original article here.

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Discover how to provideactive runtime protectionfor your web applications fromknown and unknown vulnerabilitiesincluding Remote Code Execution Attacks.

,nComments:0,published:true,canonical: take a look at the Secure Shell network protocol, and different ways and reasons for implementing this network security protocol via the command line.,image://dz2cdn3.dzone.com/storage/article-thumb/6942550-thumb.jpg,relatedRefcard:[id:1714758,title:Java Application Vulnerabilities,img:6652544,url:/refcardz/java-application-vulnerabilities],canPublish:false,rawType:article,shortDesc:

SecureShell is a network protocol that enables secure connections. It is heavily used to connect to servers, make changes, upload things, and exit. Sometimes these actions happen via tools and sometimes directly via the terminal. Here youll learn some things about using SSH in the terminal that go beyond the standardssh[email protected].

Lets dive right into the advanced SSH techniques, assuming you already know the basic technique for security and usability:SSH keys. For this article, we will useuseras the SSH user andyourserver.tldas the domain or IP that you need to replace with the correct username and host data. In order to change the configuration of SSH server-side, you will need root access either via logging in as root or via a user with sudo rights….,deleted:false,likeStatus:liked:false,score:5,canLike:false,zonetop:dzone-jordan,articleTags:[security,network security,ssh],header:id:1771581,title:Advanced Secure Shell: 6 Things You Can Do With SSH,imageUrl://dz2cdn3.dzone.com/storage/article-thumb/6942550-thumb.jpg,link:/articles/advanced-secure-shell-6-things-you-can-do-with-ssh,imageLink://dz2cdn3.dzone.com/storage/article-thumb/6942550-thumb.jpg,titleEll:Advanced Secure Shell: 6 Things You Can Do With…,type:article,url:/articles/advanced-secure-shell-6-things-you-can-do-with-ssh,isLocked:false,draft:false,articleContent:,source: talk about different situations in which SSH can help secure your network protocols, and demonstrate how to work with SSH via the command line.,originalSource: WMODEL_DATA.perms = canDecidePick:false,canPublish:false; WMODEL_DATA.partners = lastUsed:0,2001:[details:logo://dz2cdn4.dzone.com/storage/partner-logo/3792303-waratek-horz-proc201.png,level:2,name:Waratek,partnerUrl:

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Secure Shell Configuration Guide Cisco IOS Release 15S

Secure Shell Configuration Guide, Cisco IOS Release 15S

X.509v3 Certificates for SSH Authentication

SSH Algorithms for Common Criteria Certification

Secure Shell Configuration Guide, Cisco IOS Release 15S

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Information About Secure Shell (SSH)

Example SSH on a Cisco 7200 Series Router

Example SSH on a Cisco 7500 Series Router

Example SSH on a Cisco 12000 Series Router

Feature Information for Configuring Secure Shell

The Secure Shell (SSH) feature is an application and a protocol that provides a secure replacement to the Berkeley r-tools. The protocol secures sessions using standard cryptographic mechanisms, and the application can be used similarly to the Berkeley rexec and rsh tools. Two versions of SSH are available: SSH Version 1 and SSH Version 2. Unless otherwise noted, the term SSH denotes SSH Version 1 only. For information about SSH Version 2, see the Secure Shell Version 2 Support feature module.

Your software release may not support all the features documented in this module. For the latest caveats and feature information, seeBug Search Tooland the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to An account on m is not required.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

Download the required image on the device. The Secure Shell (SSH) server requires an IPsec (Data Encryption Standard [DES] or 3DES) encryption software image; the SSH client requires an IPsec (DES or 3DES) encryption software image.) For information about downloading a software image, see theLoading and Managing System Images Configuration Guide.

Configure a hostname and host domain for your device by using thehostnameandipdomain-namecommands in global configuration mode.

Generate a Rivest, Shamir, and Adleman (RSA) key pair for your device. This key pair automatically enables SSH and remote authentication when thecryptokeygeneratersacommand is entered in global configuration mode.

To delete the RSA key pair, use thecryptokeyzeroizersaglobal configuration command. Once you delete the RSA key pair, you automatically disable the SSH server.

Configure user authentication for local or remote access. You can configure authentication with or without authentication, authorization, and accounting (AAA). For more information, see theAuthentication, Authorization, and Accounting Configuration Guide.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

The Secure Shell (SSH) server and SSH client are supported on Data Encryption Standard (DES) (56-bit) and 3DES (168-bit) data encryption software images only. In DES software images, DES is the only encryption algorithm available. In 3DES software images, both DES and 3DES encryption algorithms are available.

Execution shell is the only application supported.

The login banner is not supported in Secure Shell Version 1. It is supported in Secure Shell Version 2.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

The Secure Shell (SSH) Server feature enables an SSH client to make a secure, encrypted connection to a Cisco device. This connection provides functionality that is similar to that of an inbound Telnet connection. Before SSH, security was limited to Telnet security. SSH allows a strong encryption to be used with the Cisco software authentication. The SSH server in Cisco software works with publicly and commercially available SSH clients.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

The Secure Shell (SSH) Integrated Client feature is an application that runs over the SSH protocol to provide device authentication and encryption. The SSH client enables a Cisco device to make a secure, encrypted connection to another Cisco device or to any other device running the SSH server. This connection provides functionality similar to that of an outbound Telnet connection except that the connection is encrypted. With authentication and encryption, the SSH client allows for secure communication over an unsecured network.

The SSH client in Cisco software works with publicly and commercially available SSH servers. The SSH client supports the ciphers of Data Encryption Standard (DES), 3DES, and password authentication. User authentication is performed like that in the Telnet session to the device. The user authentication mechanisms supported for SSH are RADIUS, TACACS+, and the use of locally stored usernames and passwords.

The SSH client functionality is available only when the SSH server is enabled.

Rivest, Shamir, and Adleman (RSA) authentication available in Secure Shell (SSH) clients is not supported on the SSH server for Cisco software by default. For more information about RSA authentication support, see the Configuring a Router for SSH Version 2 Using RSA Pairs section of the Secure Shell Version 2 Support module.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

3.ipsshtimeoutsecondsauthentication-retriesinteger

Configures Secure Shell (SSH) control parameters.

This command can also be used to establish the number of password prompts provided to the user. The number is the lower of the following two values:

Value proposed by the client using thessh-onumberofpasswordpromptcommand.

Value configured on the device using theipsshauthentication-retriesintegercommand, plus one.

(Optional) Configures a time-based rekey or a volume-based rekey for SSH.

(Optional) Verifies that the SSH server is enabled and displays the version and configuration data for the SSH connection.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

Perform this task to invoke the Secure Shell (SSH) client. The SSH client runs in user EXEC mode and has no specific configuration tasks.

2.ssh-lusername-vrfvrf-nameip-address

Invokes the SSH client to connect to an IP host or address in the specified virtual routing and forwarding (VRF) instance.

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

If your Secure Shell (SSH) configuration commands are rejected as illegal commands, you have not successfully generated an Rivest, Shamir, and Adleman (RSA) key pair for your device. Make sure that you have specified a hostname and domain. Then use thecryptokeygeneratersacommand to generate an RSA key pair and enable the SSH server.

You must configure a hostname for the device using thehostnameglobal configuration command. See the IPsec and Quality of Service module for more information.

You must configure a host domain for the device using theipdomain-nameglobal configuration command. See the IPsec and Quality of Service module for more information

The number of allowable SSH connections is limited to the maximum number of vtys configured for the device. Each SSH connection uses a vty resource.

SSH uses either local security or the security protocol that is configured through AAA on your device for user authentication. When configuring Authentication, Authorization, and Accounting ( AAA), you must ensure that AAA is disabled on the console for user authentication. AAA authorization is disabled on the console by default. If AAA authorization is enabled on the console, disable it by configuring theno aaa authorization consolecommand during the AAA configuration stage.

In the following example, SSH is configured on a Cisco 7200 with a timeout that is not to exceed 60 seconds and no more than 2 authentication retries. Before the SSH server feature is configured on the router, TACACS+ is specified as the method of authentication.

hostname Router72K aaa new-model aaa authentication login default tacacs+ aaa authentication login aaa7200kw none enable password password username username1 password 0 password1 username username2 password 0 password2 ip subnet-zero no ip domain-lookup ip domain-name cisco.com

controller E1 2/0 controller E1 2/1 interface Ethernet1/0 ip address 192.168.110.2 255.255.255.0 secondary ip address 192.168.109.2 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache no keepalive no cdp enable interface Ethernet1/1 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown no cdp enable interface Ethernet1/2 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown no cdp enable no ip classless ip route 192.168.1.0 255.255.255.0 10.1.10.1 ip route 192.168.9.0 255.255.255.0 10.1.1.1 ip route 192.168.10.0 255.255.255.0 10.1.1.1 map-list atm ip 10.1.10.1 atm-vc 7 broadcast no cdp run tacacs-server host 192.168.109.216 port 9000 tacacs-server key cisco radius-server host 192.168.109.216 auth-port 1650 acct-port 1651 radius-server key cisco line con 0 exec-timeout 0 0 login authentication aaa7200kw transport input none line aux 0 line vty 0 4 password password end

Example SSH on a Cisco 7500 Series Router

In the following example, SSH is configured on a Cisco 7500 with a timeout that is not to exceed 60 seconds and no more than 5 authentication retries. Before the SSH server feature is configured on the router, RADIUS is specified as the method of authentication.

aaa authentication login default radius

aaa authentication login aaa7500kw none

enable password password username username1 password 0 password1 username username2 password 0 password2 ip subnet-zero no ip cef no ip domain-lookup ip domain-name cisco.com

controller E1 3/0 channel-group 0 timeslots 1 controller E1 3/1 channel-group 0 timeslots 1 channel-group 1 timeslots 2 interface Ethernet0/0/0 no ip address no ip directed-broadcast no ip route-cache distributed shutdown interface Ethernet0/0/1 no ip address no ip directed-broadcast no ip route-cache distributed shutdown interface Ethernet0/0/2 no ip address no ip directed-broadcast no ip route-cache distributed shutdown interface Ethernet0/0/3 no ip address no ip directed-broadcast no ip route-cache distributed shutdown interface Ethernet1/0 ip address 192.168.110.2 255.255.255.0 secondary ip address 192.168.109.2 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache interface Ethernet1/1 ip address 192.168.109.2 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown interface Ethernet1/2 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache interface Ethernet1/3 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown interface Ethernet1/4 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown interface Ethernet1/5 no ip address no ip directed-broadcast no ip route-cache no ip mroute-cache shutdown interface Serial2/0 ip address 10.1.1.2 255.0.0.0 no ip directed-broadcast encapsulation ppp no ip route-cache no ip mroute-cache ip classless ip route 192.168.9.0 255.255.255.0 10.1.1.1 ip route 192.168.10.0 255.255.255.0 10.1.1.1 tacacs-server host 192.168.109.216 port 9000 tacacs-server key cisco radius-server host 192.168.109.216 auth-port 1650 acct-port 1651 radius-server key cisco line con 0 exec-timeout 0 0 login authentication aaa7500kw transport input none line aux 0 transport input all line vty 0 4 end

Example SSH on a Cisco 12000 Series Router

In the following example, SSH is configured on a Cisco 12000 with a timeout that is not to exceed 60 seconds and no more than two authentication retries. Before the SSH server feature is configured on the router, TACACS+ is specified as the method of authentication.

aaa authentication login default tacacs+ local

aaa authentication login aaa12000kw local

enable password password username username1 password 0 password1 username username2 password 0 password2 redundancy main-cpu auto-sync startup-config ip subnet-zero no ip domain-lookup ip domain-name cisco.com

interface ATM0/0 no ip address no ip directed-broadcast no ip route-cache cef shutdown interface POS1/0 ip address 10.100.100.2 255.255.255.0 no ip directed-broadcast encapsulation ppp no ip route-cache cef no keepalive crc 16 no cdp enable interface POS1/1 no ip address no ip directed-broadcast no ip route-cache cef shutdown crc 32 interface POS1/2 no ip address no ip directed-broadcast no ip route-cache cef shutdown crc 32 interface POS1/3 no ip address no ip directed-broadcast no ip route-cache cef shutdown crc 32 interface POS2/0 ip address 10.1.1.1 255.255.255.0 no ip directed-broadcast encapsulation ppp no ip route-cache cef crc 16 interface Ethernet0 ip address 172.17.110.91 255.255.255.224 no ip directed-broadcast router ospf 1 network 0.0.0.0 255.255.255.255 area 0.0.0.0 ip classless ip route 0.0.0.0 0.0.0.0 172.17.110.65 logging trap debugging tacacs-server host 172.17.116.138 tacacs-server key cisco radius-server host 172.17.116.138 auth-port 1650 acct-port 1651 radius-server key cisco line con 0 exec-timeout 0 0 login authentication aaa12000kw transport input none line aux 0 line vty 0 4 no scheduler max-task-time no exception linecard slot 0 sqe-registers no exception linecard slot 1 sqe-registers no exception linecard slot 2 sqe-registers no exception linecard slot 3 sqe-registers no exception linecard slot 4 sqe-registers no exception linecard slot 5 sqe-registers no exception linecard slot 6 sqe-registers end

Unless otherwise noted, the term SSH denotes SSH Version 1 only.

To verify that the Secure Shell (SSH) server is enabled and to display the version and configuration data for your SSH connection, use theshowipsshcommand. The following example shows that SSH is enabled:

The following example shows that SSH is disabled:

To verify the status of your SSH server connections, use theshowsshcommand. The following example shows the SSH server connections on the device when SSH is enabled:

The following example shows that SSH is disabled:

Cisco IOS Master Command List, All Releases

Authentication, authorization, and accounting (AAA)

Authentication, Authorization, and Accounting Configuration Guide

IPsec and Quality of Service module

Secure Shell Version 2 Support module

Loading and Managing System Images Configuration Guide

The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to An account on Cisco.com is not required.

The Secure Shell (SSH) feature is an application and a protocol that provides a secure replacement to the Berkeley r-tools. The protocol secures sessions using standard cryptographic mechanisms, and the application can be used similarly to the Berkeley rexec and rsh tools. Two versions of SSH are available: SSH Version 1 and SSH Version 2. This document describes SSH Version 1.

This document also includes information about the Secure Shell SSH Version 1 Integrated Client feature and the Secure Shell SSH Version 1 Server Support feature. Both features are part of the Secure Shell functionality.

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Secure Shell Chrome SSH

Secure Shell Chrome Chrome SSH Google@Appinn

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luikhh:

Mobile SSH Secure Shell

This is free Android SSH app which is based on OpenSSH and Putty as its backend library.

Inspired by opensource community and in the hope of extending usage of OpenSSH on Android devices, the Mobile SSH was created. I truely hope that the tool will make convenient for users when they come to work on

some simple stuff on remote machines.

If you have any suggestions and feedback, please send me an email or visit me at

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Download Mobile SSH Secure Shell APKDownload>

SSH (Secure Shell) with Putty

is the standard for secure file transfer and remote logins over the internet. All network traffic is encrypted and optionally compressed, providing strong authentication measures and secure communications. The following are procedures to use SSH connection for Putty.

There is no native SSH client program installed in the Windows Operating System, you have to download the SSH client program (PuTTY) to your PC in order to make an SSH connection to a server (host computer).

You will see a pop-up window below. This is a feature of the SSH protocol. It is designed to protect you against a network attack known as

– secretly redirecting your connection to a different computer, so that they can get your password. Click

SSH突之SSH Secure Shell 臃

WINDOWS装SSH突耍SSHSecureShellClient-3.2.9.exe缘 for UNIX/LINUX SERVER 耍ssh-3.2.9-1.i386.rpmAIXSOLARIS要虏同陌RHCE3为樱确UNIX默系Openssh全氐装ssh-3.2.9-1.i386.rpm

2为什么要私钥证拥耄

要知Publick Key指钥private key指私钥证墓模public key萁芏只诩埽private key只芏匹public key芄萁前public key远系统实茫然颖乜始ssh印时远痰sshd一遣public key芎蠓⒏兀鼗private key懿馗远系统远系统sshd拥匹private key堑录么虻ィ

WINDOWS寻ssh-keygen2.exe募钥募业C:\Program Files\SSH Communications Security\SSH Secure Shell/ >

DOS执募

C:\Program Files\SSH Communications Security\SSH Secure Shell ssh-keygen2 -t rsa

玫rsa钥,默2048愎幻邓J筪sa式钥揖筒说

系统远钥裕默戏C:\Documents and Settings\XXX\Application Data\SSH\UserKeys目录XXX执时玫驶默id_rsa_2048_aid_rsa_2048_a.pub呔要系墓钥钥缘同时一耄不直拥陆跃直踊爻耍全一墙也搿

4SSH突舜颖陆远UNIX

腔前姆陆远UNIX希陆腔没目录PWD一钥没目录业木/home/test么耍墙一.ssh2募一募authorization

然WINDOWS突系id_rsa_2048_a.pub洗UNIX细战玫.ssh2募乇SSH突恕

SSH突耍诘陆证状态选Public Key式陆詹欧id_rsa_2048_a.pub台岱⑾就德剿C凰∈彼皆恐ぶね壁C伙到堑要蔷UNIX薷/etc/ssh2/sshd2_config募

password 删薷暮玫

AllowedAuthentications hostbased,publickey

陆时统露曰耍

WINDOWS装SSH突耍putty-0.56-installer.exe缘址兀

putty装puttygen钥钥选SSH2 RSA钥选2048然Generator,时钥傻然也选帧止一key,Key comment注keyKey passphraseConfirm passphrase诙硬系key埽约一没冒全系幕为铡然蟊4key默戏式么钥指募私钥默系募展.ppk为test.ppk钥潜为test.pub要注牵putty樱私钥展.ppk慊乖.ppk私钥为SSH Secure Shell 式Openssh式知私钥UNIX之嗷ネㄡ供撕艽院峤玌NIX通私钥证姆医

4Putty颖陆远UNIX

腔前姆陆远UNIX希陆腔没目录PWD一钥没目录业木/home/test么耍墙一.ssh2募一募authorization

然WINDOWS突系test.pub洗UNIX细战玫.ssh2募乇Putty洗 put 鼐get通PSFTP也PUTTY

Putty一session为test,要陆远ip为sshConnectionsshauth选private key募选为詹puttygen钥test.ppkOpen要username,没远系统始public key证钥passphrase 要耄庇就德妓∈彼皆恐ぶね壁C伙到堑要蔷UNIX薷/etc/ssh2/sshd2_config募

password 删薷暮玫

AllowedAuthentications hostbased,publickey

陆时统露曰耍

为选玫SSH SSH Secure Shell for unix品要一Ssh陌装獭SSH诮艿前2Openssh筒耍趣幕圆一

前芄诘Ssh server for unix ssh-3.2.9-1医俜峁㏕AR然悴幌ぬPM劝装式也强缘摹RPM装ssh-3.2.9-1.i386.rpm , 铱缘址兀

rpm ivh ssh-3.2.9-1.i386.rpm 装遣 Uvh

./configure 要说一原牡希tcp_wrappersSSH,么configure时要选–with-libwrap=/path/to/libwrap/ SSHlibwrap.a tcpd.h茫3.2.0系SSH丫要么耍丫丝品权薜墓堋

RPMTAR装ssh server募/etc/ssh2/sshd2_config装一悴22丝诎装ssh server之前丫占茫么要虻サ一募执 vi /etc/ssh2/sshd2_config业27Port 22 22某亩丝诰涂恕

Ssh server 默募/usr/local/sbin/sshd2装远一拥募为sshd募只要/usr/local/sbin/目录执 ./sshd & 涂约虻サSsh server然执 netstat na 峥22丝丫耍目丝冢sshd2_config募恕遣每要侄Ssh server么强薷一/etc/rc.d/rc.local募募荩

一为注荩诙为SSH为台鼗

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Run SSH Command

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Runbook Activity Reference for System Center 2012 – Orchestrator

This documentation is archived and is not being maintained.

This documentation is archived and is not being maintained.

Applies To: System Center 2012 SP1 – Orchestrator, System Center 2012 – Orchestrator, System Center 2012 R2 Orchestrator

The Run SSH Command activity opens an SSH connection to a remote server and runs shell commands on that server. Use the Run SSH Command activity to run backup applications or a batch script that runs a set of complex commands on a non-Windows computer. The Run SSH Command activity can run any command in a Secure Shell.

Run SSH Command activity is based on PuTTY beta .61. The implementation of SSH in Run SSH Command has certain limitations:

The Run SSH Command activity does not work against all SSH-1 and SSH-2 servers. In general, this activity functions with most SSH servers, but it does not work for all SSH server implementations.

You must download and use the PuTTy key generation tool to create keys for the Run SSH Command activity. The key generation tool is available atDownload PuTTY – a free SSH and telnet client for Windows.

The Run SSH Command activity supports SSH-1. Microsoft does not recommend the use of SSH-1. If you want to prevent The Run SSH Command activity from using SSH-1, you should use a key file that contains keys that do not support SSH-1. Do not use a username and password pair use a key file.

The propertyAccept Host Key Changeis not a recommended setting. This property should only be used to establish the initial connection to a computer when the key is stored on the runbook server. Runbooks that contain the Run SSH Command activity should be configured withAccept Host Key Changedisabled. When you use this property it disables the validation of the identity of the SSH server and represents a security risk.

You should review the list if cryptographic ciphers supported by PuTTY, which is found atEncryption algorithm selection.

PuTTY beta .61 uses a pseudorandom number generator suitable for most cryptographic purposes. It is not recommended for the generation of long-term cryptographic keys.

For more information about PuTTY, go toDownload PuTTY – a free SSH and telnet client for Windows.

Before you configure the Run SSH Command activity, you need to determine the following:

Connection information for the computer that hosts the SSH server that you want to connect to.

Whether you require a key file to log into the server before you are able to run commands; this depends on your SSH server.

Use the following information to configure the Run SSH Command activity.

Type the name of the computer or IP address where the SSH server is running. You can also use the ellipsis

Type the port number that you need to use to connect to the SSH server.

Select this option and type the command that you want to run on the SSH server after the connection has been established.

Select this option and specify a file that contains a set of commands that will be run on the SSH server when the connection has been established. The command set file must use the scripting language of the native shell on the SSH server.

Select this option to accept host key changes when they occur.

It is recommended that you do not use this setting because it can cause a runbook to accept any change in a server, including any that are for malicious purposes. By selecting this option, you are instructing the activity to connect to any server, regardless of the host key. Only use this option for testing purposes.

Specify the amount of time, in seconds, that the Run SSH Command activity will wait for the SSH command to complete. Configure a value of

(zero), or leave the box blank, to wait indefinitely.

After the timeout period has elapsed, the Run SSH Command activity times out and returns a warning. The command that you ran may continue running, regardless of whether the Run SSH Command activity times out.

Type the username that you need to log into the SSH server.

Select this option and type the password that is associated with the Username that you specified.

Select this option to specify a key file to use. You must use the PuTTY key file generator to create a key file. You can download this tool fromDownload PuTTY – a free SSH and telnet client for Windows.

Type the passphrase that is associated with the key file that you specified.

The following table lists the published data items.

The command that ran on the SSH server. This data is not available when the

The command set file that was used to run commands on the SSH server. This option is not available when the

The name or IP address of the SSH server.

The text that was published as output from the commands that were run on the SSH server.

The exit code published by the command. When using a command set file, this will be the exit code of the last command in the file.

The path of the key file that was used to authenticate with the SSH server.

The port used to connect to the SSH server.

The username used to log into the SSH server.

Secure Shell for Windows

Secure Shell is a program that allows you to log in to a remote UNIX computer over the Internet. It provides a secure connection between the computers by encrypting passwords and other data.

at UD. This page will no longer be updated.

and other central UNIX servers. Visit ITs new help pages for information aboutconnecting and usingWinSCP and PuTTY.

Remote Connections with Secure Shell

program (either from the Start menu or a desktop shortcut).

dialog box appears (shown below), press

dialog box appears (shown below), and if you are using your own computer, click

. If you are using a computer in a public site or someone elses computer, click No.

Note:This dialog box will only appear if you have never logged in to copland.udel.edu before.

Printing from a Secure Shell Session

Because Secure Shell establishes a connection to a remote UNIX server, you can print files and email messages on the Universitys central printers using standard UNIX commands. If, however, you wish to print email messages or files using a local printer (e.g., one directly connected to your computer), follow these steps:

If you are using Pine to read email, use the Pine

(export) command to save the message to a file.

command to display the contents of the file on your screen. For example, if the file is named katmessage, type this command at the UNIX prompt then press the RETURN key to display the file: cat katmessage

If necessary, use the scrollbar to the right of the Secure Shell window to scroll backwards to the point in your session at which the beginning of the file is displayed.

Highlight the entire display of the file you wish to print.

With the text highlighted, click the printer icon on the Secure Shell window.

On the resulting print window, check to be sure the button next to

Click OK to print the file or message.

Transferring Files with Secure Shell

The Secure Shell file transfer window allows you to manage files on your computer and your directories on the UD server, including Web pages, graphics, documents, and more. With the file transfer program you will be able to:

View any directory or file on your computer and on the server.

Create, rename, move, and delete folders and files on your computer or within your directory on the server.

Transfer any file or folder between your computer and your directory on the server.

Change the permissions of files in your directory on the server.

Use the tabs below for basic Secure Shell tasks.

Transferring Files with Secure Shell

Double-click the SSH Secure Shell Client desktop icon (or select the program from the Start menu).

You will see the SSH Secure File Transfer window that looks similar to the following:

This window is divided into three main sections: Local Name, Remote Name, and File Transfer Status and History which are described below.

TheLocal Namepane on the left side of the window lists the files and folders on your computer and enables navigation very similar to that in Windows Explorer. Files can be dragged from your computer (Local Name) to the server (Remote Name) or from the remote server to your computer.

This area displays directories and files in your home directory on the UNIX server. You may also view other server directories and files as needed.

The status of each uploaded or downloaded file will appear on the Transfer tab. All actions are displayed in an exportable history list. The Queue tab displays files ready to be uploaded or downloaded.

Transferring files using the drag-and-drop method

You can transfer files between your computer and your directory on the server by using the drag-and-drop method as described below.

window pane (on the right side of the window), change to the directory to which you wish to transfer your files, either by clicking the directory name or by typing the directory path in the box on the File bar.

Select the format of the file you want to transfer:

) for files that contain only text or program source code. Examples are files that end with .html, .htm, and .txt.

) for files that contain formatting codes such as files produced by word processor, spreadsheet, or graphics programs. Examples are Microsoft Word, Microsoft Excel, .gif, and .jpg files.

Select the file you wish to transfer by clicking the file name. If you want to transfer more than one file, hold the

key down and select the other files. Release the

key and mouse button when you have selected your files.

Click the highlighted file or group of files and drag it to the desired directory on the server in the right window pane.

Release the mouse button while the file is transferred. If a file name in the destination folder is the same as one you are transferring, you will be asked if it is OK to replace it. You will see the progress of the transfer on the

tab at the bottom of the screen. The file will be listed in the target location if the transfer was successful.

If you do not see your file in the target location, click the

To transfer files from the server directory to your local computer, follow the directions above, dragging the selected files to the left window pane (Local Name).

Transferring files using the upload and download buttons

You can also transfer files between your computer and server by using thedownloadoruploadbutton.

window pane, change to the directory to which you wish to transfer your files, either by clicking the directory name or by typing the directory path in the box on the File bar.

button to move a file from the server to your computer or click the

button to transfer a file from your computer to the server.

dialog box, locate and select the files for downloading or uploading.

dialog box. Downloaded files will be transferred to the displayed computer directory, and uploaded files will be placed in the displayed server directory.

Setting File Permissions in Secure Shell

If you are uploading a file that others will view on the Web, you must ensure that Web users will be able to see the pages. Even though people may type the correct Web address to view your site, they will not be able to see the material without permission. The attributes for a file or the folder it is in must be set correctly on the server to give this permission.

Attributes are shown to the far right of the file or folder name (as shown in the right-most column of the following graphic). Use the scroll bar at the bottom of the file window to reveal the attributes column. Again, Web page viewing is enabled by changing the attributes of files and folders within your Web directory on the server:

Files and folders can have three types of users:

The user with full rights to all files and directories within a specific server directory space; this user can change file and folder attributes.

A select group of users listed by the owner.

All other users; users accessing your pages and directories through the Web or the network.

Files and folders can have the following attributes on the server:

The file or folder can be read (viewed).

The file or folder can be written to.

The folder can be opened to access files (execute); the user can view Web pages in the folder.

The following settings are recommended to enable you to share your Web pages over the Internet. Verify that that these settings have been applied to your Web folder and all files and folders in it.

If you are part of a group where more than one person will make changes to the Web files, click the

check box for the group. The Permission mode will change to 664.

Right-click the file or folder name.

Click the check box for the desired attribute for the Owner, Group, and Other categories.

Select a file or folder you wish to delete from either the Local Name or Remote Name window pane.

to delete the file or folder. Alternatively, you can click the red X on the File bar.

dialog box appears, allowing you to confirm if you really want to delete the selected files or folders. Click

iconto quit the current File Transfer session.

to quit the SSH File Transfer program.

If you require further assistance with the instructions or information on this page, contact theIT Support CenterLink opens in a new window.