Title says it all. but here is the scenario:
- Connected to work via VPN
- on a Linux client
- ssh email@example.com
- #init 1
Will going down to "single user mode" via "init 1" kill and disconnect my root ssh session?
It should be OK. Whilst the SSH listener daemon is stopped in runlevel 1 on most distros, existing connections should stay up, and networking shouldn't be affected. I wouldn't be doing it without having some sort of remote console connected, though -- you never know when a rogue solar flare is going to come along and drop your network connections for juuuuust long enough to kill your SSH session.
EDIT: Some testing indicates that, on Debian systems at least,