Initial SSH setup

Create User ID for normal use

• On Debian, useradd is a low level utility for adding users. Administrators should usually use adduser(8) instead.
• On Fedora or CentOS systems, adduser is just a symbolic link to useradd
• adduser <user>

Change SSH port and deny root SSH login

• vi /etc/ssh/sshd_config
• Replace default port 22 with <random port>
• Disable Root login   PermitRootLogin no

Enable new SSH port on ipchains

• iptables -A INPUT -p tcp --dport <new SSH port> -j ACCEPT

Restart SSH service

• service ssh reload