Hello people, I recently rented a vps server from OVH and I want to start hosting my own piefed instance and a couple other services. I am running debian 13 with docker, and I have nginx proxy manager almost set up. I want to set up subdomains so when I do social.my.domain it will go to my piefed instance, but how do I tell the machine to send piefed traffic to this subdomain and joplin traffic (for example) to another domain? Can I use nginx/docker natively for that or do I have to install another program. Thanks for the advice.


Firewalld
sudo apt-get install firewalld systemctl enable --now firewalld # ssh on port 22 opened but otherwise most things blocked by default firewall-cmd --get-active-zones firewall-cmd --info-zone=public firewall-cmd --zone=public --add-port=1234/tcp firewall-cmd --runtime-to-permanentThere are some decent guides online. Also take a look in
/etc/firewalld/firewalld.confand see if you want to change anything. Pay attention to the part about Docker.You need to know about zones, ports, and interfaces for the basics. Services are optional. Policies are more advanced.