Passwordless SSH

Linux:

 ssh-keygen -t rsa
 ssh-copy-id -i ~/.ssh/id_rsa.pub <login>@rtime.felk.cvut.cz

You will be asked for a password. Use the password you normally use in most labs at Karlovo namesti (password for the Novell account).

Test it:

 ssh <login>@rtime.felk.cvut.cz

Use puttygen to generate a key. Then save your private key and copy the public key from "Public key for pasting into OpenSSH authorized_key file" box.
Login to rtime (probably using PuTTY)
Run

 mkdir .ssh
 chmod 700 .ssh
 echo "<paste you key here>" >> .ssh/authorized_keys
 chmod 600 .ssh/authorized_keys

In PuTTY create a session containing the address of the server, port and in section SSH-Auth choose the location of your private key file saved with puttygen
Save the session under some name, lets say 'mysession'
In TortoiseSVN, use the session name instead of server address, i.e. instead of

svn+ssh://user@servername.com/home/svn/repo

use

svn+ssh://user@mysession/home/svn/repo