To configure the SSH options, open the Preferences dialog and go to Connection settings > SSH. The following options are available:
Use external SSH client - Allows you to specify the command line
for an external SSH client which is used when connecting to a SVN+SSH repository. Absolute
paths are recommended for the SSH client executable and the file paths given as arguments
(if any). Depending on the SSH client used and your SSH server configuration, specify the
user name and / or private key / passphrase in the command line. Here you can also choose
if the default user name (the same user name as the SSH client user) will be used for SVN
repository operations or you should be prompted for a SVN user name whenever SVN
authentication is required. For example, on Windows the following command line uses the
plink.exe tool as external SSH client for connecting to the SVN
repository with
SVN+SSH: