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If ssh stopped, it has to do with ssh server not client. It doesn't have anything to do with vsftpd as well so I am a little confused to as what you are actually trying to do.
If it is a problem of service not starting by itself after rebooting, the solution should be simple enough but is distribution dependent.
Redhat familly command would be
chkconfig sshd on
Ubuntu family
update-rc.d sshd defaults