+ Kinds of proxy service run on Linux systems

+ How to setup SOCKS proxy in SSh

+ What is Better File System

+ Tips to secure SSh

+ What is crontabs

+ Multi-Factor Authentication for CLi machine

+ Sendmail configuration to relay emails via remote SMTP

+ Assign temporary IP address

+ Repair or install GRUB

+ Linux system error code list

+ Find files from pattern

+ Run sudo without entering password

+ Change DNS server priority in host

+ Change hostname

+ List only hidden files and folders

+ Know line end with space

+ View line number in text file

+ Change default text editor