Learn how to setup a #firewall with #UFW on an #Ubuntu / #Debian #cloud server.
Open ssh port 22 using ufw on Ubuntu/Debian Linux.
Configure ufw to forward port 80/443 to internal server hosted on LAN.
Block an IP address with ufw on Ubuntu Linux server.
Limit SSH (TCP port 22) connections with ufw on Ubuntu.
More Info: https://linuxapt.com/blog/ufw-allow-incoming-ssh-connections-from-a-specific-ip-address-subnet-on-ubuntu-debian
