freut mich 

 viel spass mit dein Gameserver  
> wie kann ich messen wieviel Traffic über mein eth0 läuft
zb mit 
# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:30:48:56:C3:DC
          inet addr:xx.xx.xx.xx  Bcast:xx.xx.xx.xx  Mask:255.255.255.255
          inet6 addr:xxxxxxxxxxxxxx Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:48416742 errors:0 dropped:0 overruns:0 frame:0
          TX packets:68984442 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:859114754 (819.3 Mb)  TX bytes:1241119676 (1183.6 Mb)
          Interrupt:9
oder mit mrtg-eth
mrtg-eth is a perl script which provides a probe for the Multi Router Traffic Grapher to print statistics for network devices which do not support the SNMP protocol. It reads if-stats from /proc/net/dev and generates an output suitable for MRTG.
http://sourceforge.net/projects/mrtg-eth/