Latest Articles
10+ commands to list all systemctl services with status
In systemd all the services are part of unit files so to list services we must define --type= argument and to get the state of individual services we need …
How to reject mail for unknown users in postfix (local_recipient_maps)
How to reject mail for unknown users on localhost with Postfix with local_recipient_maps with example
How to restrict IP Address to use postfix smtp relay
How can I restrict my postfix smtp relay server to be used by only certain IP Address, How to block or allow postfix relay access using mynetworks example
3 easy steps to configure gmail smtp relay with postfix
Step by step tutorial to configure postfix using third party gmail smtp relay to send mails to external network. Use SASL with Google 2-Step Authentication
50+ tmux cheat sheet and shortcut commands
In this tutorial I have shared the most used tmux cheatsheet with the list of commands and shortcuts for sessions, windows panes etc in tmux