Ubuntu Tutorials Copy/Paste tutorials for Ubuntu

9Nov/090

Disable root login to SSH

Allowing root logins to your SSH damon is a big security threat. If the SSH port is open, hackers will probably at some time attempt to brute force your root password. It's a good idea to disable root logins to SSH and instead use a normal user to login and use sudo to perform tasks that require root privileges.

1. Open the SSH daemon config file and change this line: (sudo pico /etc/ssh/sshd_config)

PermitRootLogin no

5Nov/090

Add a sudoer (user allowed to use sudo)

Sudo allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.

1. Create a new user (optional)

adduser user1