Security
How to Add User to Sudoers
usermod -aG sudo username
Pinging from a base user - ping: socket: Operation not permitted
The error message ping: socktype: SOCK_RAW followed by ping: socket: Operation not permitted indi...
Change IP and Gateway from Shell
Change IP ifconfig <interface_name> <ip_address> netmask <netmask_address> Change Gateway sudo...
Filesystem permissions
File permissions in Linux are coded symbolically (as letters) r - read w - write x - execute ...