Quickly Secure Ubuntu/Linux Mint Systems Using UFW Firewall
UFW (Uncomplicated Firewall) in Ubuntu/ Linux Mint is a simple but very effective firewall which can be configured to secure a system.
Here is a simple way to make sure ufw is configured to allow vital web services (like http, ftp, mysql etc) while effectively blocking anything else that is not needed especially on servers:
Setting default ufw policy :
First off, it is recommended to set ufw to it’s...