Running Docker behind the ufw firewall - svenv.nl
Running Docker behind the ufw firewall Ubuntu ships with a very nice and simple frontend for iptables called ufw (uncomplicated firewall). Ufw makes it possible to setup a firewall without having to fully understand iptables itself. When you however are using Docker and you want to combine Docker with the ufw service. Things do get complicated. The docker service talks directly to iptables for net
The dangers of UFW + Docker
In recent years, I’ve transitioned over to using Ubuntu’s UFW. In most cases, it gets the job done and it is easy to manage via provisioning tools like Ansible. As turns out however, using UFW together with Docker can be very dangerous as I will show below. Let’s start with an Ubuntu 14.04 server. It has UFW and Docker installed already, so let’s start by configuring UFW to block everything but SS
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