User access is done via ssh's authentication scheme. As stated
above, this is how users get access to the system, while maintaining a
high level of security. If you're not familiar with ssh, check out
http://www.ssh.org/. Note that I am
using ssh version 1, not version 2. There is a big difference, notably
that version 1 is free, and 2 isn't.
You'll need to configure sshd.
The idea is to disable password authentication and rhosts
authentication. The following options should be present in your
/etc/sshd_config file.
PermitRootLogin yes
IgnoreRhosts yes
StrictModes yes
QuietMode no
CheckMail no
IdleTimeout 3d
X11Forwarding no
PrintMotd no
KeepAlive yes
RhostsAuthentication no
RhostsRSAAuthentication no
RSAAuthentication yes
PasswordAuthentication no
PermitEmptyPasswords no
UseLogin no
