Useful SSH Server Conf Tricks

Turning password login off

Edit /etc/ssh/sshd_conf

ChallengeResponseAuthentication no
PasswordAuthentication no
UsePAM no

Restart ssh

sudo service ssh restart

Turn on password login

ChallengeResponseAuthentication yes
PasswordAuthentication yes
UsePAM yes

Restart ssh

Copy and pasting from remote vim

1. Edit /etc/ssh/ssh_config

ForwardAgent yes
ForwardX11 yes
ForwardX11Trusted yes

2. Edit /etc/ssh/sshd_config

X11Forwarding yes
X11DisplayOffset 10

3. Restart ssh

sudo service ssh restart

Turning off password requirement for sudo.

1. Edit /etc/sudoers

youruser ALL=(ALL) NOPASSWD:ALL

2. Your done.