Configure Linux Static IP Network Interface

Static IP configuration can be found in file /etc/network/interfaces. This applies to Debian or any derivatives such as Ubuntu. Edit the file /etc/network/interfaces using sudo command sudo pico /etc/network/interfaces Change the file content to be similar like below. Please ensure to look closely on iface eth0 section. You can change …

How to Disable Root Login in Ubuntu

It is better to disable root user login since allowing root user┬álogin is a major security concern in Linux system. You can use root login after logging in as another user. 1. Edit sshd_config file. sudo pico /etc/ssh/sshd_config 2. Search PermitRootLogin directive in that file and change PermitRootLogin to no. …

How to Install Security Updates in Ubuntu

You should install all available security updates in order to protect against unauthorised access to your Linux/Ubuntu box. The commands can be found in the following. sudo apt-get update sudo apt-get upgrade –show-upgraded Please ensure to enter your root password since you are using sudo command that gains super access …