home

2/17/25

Debian

Ver

home

2/17/25

Info

Firewall

uname -a

sudo ufw enable

lsb_release -a

sudo ufw status verbose

get status

cat /etc/os-release

FAQ

-->

hostnamectl

sudo ufw disable

temporarily stop the firewall

sudo ufw status verbose

If it says inactive, UFW is turned off

sudo apt remove ufw

uninstall and remove all rules

sudo apt purge ufw

sudo ufw status

It should return "command not found" if successfully removed.

sudo ufw allow 22/tcp

Allow SSH (important!) Before enabling UFW, make sure to allow SSH so you don’t get locked out:

sudo ufw allow icmp

sudo ufw allow 80/tcp # Allow HTTP

sudo ufw allow 443/tcp # Allow HTTPS

iptables -L