So, I have a CSGO server running on my local server running Ubuntu Server. For this, I had to open port 27015 tcp/udp on my router.
When I test my ports in
https://www.yougetsignal.com/tools/open-ports/ , it's says that is closed.
What is weird is that when I try to run anything that listens 27015, and check again, the port opens.
Things that I've tried:
- Allow the port in ufw
- Disable ufw
- Allow the port on iptables
- Checked my router firewall
- Install Debian instead of Ubuntu (actually i tried first on debian an then moved to ubuntu)
So, how do I know and ensure you guys that I've opened correctly the port on my router?
Because I installed ssh, and this port 22 was opened in the same way as 27015. Aaaand before installing Linux, this server was running Windows, and the port was open.
I've installed ssh and with this, Ubuntu automatically open 22 port on my router, and it is working and open.
Conclusions that I've made so far:
- The router it is OK, nothing to do with that
- Both Ubuntu and Debian have the same blocking
- The port only opens when a process it's listening that port .CSGO for some reason do not open the port when running. (is that a config to change this? Maybe a start command?)
Threaded Mode