Choose your source host type:
To use X-Windows forwarding with ssh, you need to have your DISPLAY environment variable set before you start your ssh connection If you are on a Unix workstation running X-windows, then your DISPLAY variable is almost guaranteed to be properly set.
When you start your ssh connection to a remote host, the X-Windows connections are by default automatically routed through ssh. Once you are logged in, your DISPLAY variable on the remote host will automatically be set for you by ssh in a special way. This means do not manually set your DISPLAY variable.
If you find that your X-window applications are running too slowly then you can try a different encryption cipher. By default ssh has 3 encryption ciphers available for connections. The default is called the IDEA cipher and provides about 64% performance compared to that of no encryption. The fastest cipher is called blowfish and it provides about 88% performance compared to that of no encryption. To use the blowfish cipher, add this parameter to your ssh command when first logging in to the remote host:
p25hp % ssh -c blowfish remote.host.govYou should notice an improvement in your X-windows applications.
If your X-applications are still too slow after trying the blowfish, then you can do the following. Once logged in, if you manually set the DISPLAY variable as you normally would when using telnet, then your X-applications will not be encrypted. This is not recommended! This means that the only thing that will be encrypted is your initial login connection. All other x-applications running from the remote host will not be encrypted, including terminal sessions! Use this method with extreme caution, and only if you absolutely have to have maximum speed performance out of your x-applications.
To use X-windows on MS-Windows with ssh, you must first have an X-Server application installed for your windows machine. This x-server must be started before starting the ssh client. The link for F-Secure below is the link to the "logging in" page and contains information on how to configure your F-Secure client for providing X-Windows support. Click below to choose which client you will be using:
To use X-windows on a Macintosh with ssh, you must first have an X-Server application installed for your Macintosh. This x-server must be started before starting the ssh client. The link below is the link to the "logging in" page and contains information on how to configure your F-Secure client for providing X-Windows support.