In ubuntu What to do after downloading the SDL's and AL SOFT

[tempest]

Is there an address he could traceroute to see whether the issue is at OS or application? He can ping assault.cubers.net but I'm not sure if pings to the masterserver at that address get routed elsewhere or what.

If he can access this website, he should also be able to get the server list. Maybe try this

[SELECT ALL] Code:

$ telnet cubers.net 28760

type "list" (without quotes), hit enter and see what happens.