Problem Solved. Erase this thread.
#1
Solved.
Thanks given by:
#2
Solved.
Thanks given by:
#3
check your read and write permissions in your AC folders
Thanks given by:
#4
Solved.
Thanks given by:
#5
Sounds like your Firewall is blocking your Server partially. Make sure you have opened both ports in your firewall: The Port on which AssaultCube is listening plus that one higher. So if your server is using the standard port 28763 you have to open ports 28763 and 28764.

If that does not help: Is there any output in the servers console?
Thanks given by:
#6
Solved.
Thanks given by:
#7
Do not run your system without a firewall!
This is why it's such a bad idea for people to host a server that are not fully aware of the security implications. You just need to allow the two ports for the game, don't allow everything - because that means everything. Chances are this includes something someone can exploit.
Thanks given by:
#8
SSH open, and 123 as root password. Greeeeeaaaat.

Just add a rule, goddamit. What is that "Ubuntu Firewall", anyway? Iptables?
Thanks given by:
#9
The Linux kernel includes the Netfilter subsystem, which is used to manipulate or decide the fate of network traffic headed into or through your server. All modern Linux firewall solutions use this system for packet filtering.

The kernel's packet filtering system would be of little use to administrators without a userspace interface to manage it. This is the purpose of iptables.

You can use "ufw" to configure the firewall.
This is by default disabled.

Uncomplicated Firewall - UFW - Community Ubuntu Documentation
Firewall
Thanks given by: