Editing VPS Management (section)

== Login to any machine without a password ==

This is possible via the use of ssh keys. The process is thus:

1. place the public key for your user (root@mail) in the /root/.ssh/authorized_keys file on the server you wish to login to
 cat /root/.ssh/id_dsa.pub
(paste that into authorized_keys on the target server). If the file doesn't exist, create it.

2. enable root login (usually only applies to FreeBSD). Edit the /etc/ssh/sshd_config on the target server and change:
<tt>#PermitRootLogin no</tt>
to
<tt>PermitRootLogin yes</tt>

3. Restart the sshd on the target machine. First, find the sshd process: 
 jailps <hostname> | grep sshd 
or 
 vp <VEID> | grep sshd

Look for the process resembling:
 root     17296  0.0  0.0  5280 1036 ?        Ss    2011   4:27 /usr/sbin/sshd 
(this is the sshd)

Not:
 root      6270  0.5  0.0  6808 2536 ?        Ss   14:33   0:00 sshd: root [priv]
(this is an sshd child- someone already ssh'd in as root)

Restart the sshd: 
 kill -1 <PID>

Ex:
 kill -1 17296

You may now ssh in.

Once you're done, IF you enabled root login, you should repeat steps 2 and 3 to disable root logins.