Thank you for the replies, but it was none of the mentioned :-| I guess i have to include more information:
I started the followoing three apps (to have some apps running using the internet): ftp ftp.debian.org telnet pluto.tu-graz.ac.at ssh -v ftp.tu-graz.ac.at Output by ssh (I started it the verbose mode, I thought i will see more but ...): SH_2.3.0p1, protocol versions 1.5/2.0. Compiled with SSL (0x0090600f). debug: Reading configuration data /etc/ssh/ssh_config debug: Seeding random number generator debug: ssh_connect: getuid 0 geteuid 0 anon 0 debug: Connecting to ftp.tu-graz.ac.at [129.27.3.12] port 22. debug: Allocated local port 1022. debug: Connection established. (after that nothing else will ever appear) now the output of netstat -e (only tcp-connections): tcp 0 32 L0922P05.dipool.hi:3071 pluto.tu-graz.ac:telnet ESTABLISHED root 4315 tcp 0 0 L0922P05.dipool.hi:1023 fstgal08.tu-graz.ac:ssh ESTABLISHED root 4483 tcp 0 0 L0922P05.dipool.hi:3076 ftp2.sourceforge.ne:ftp ESTABLISHED root 4492 tcp 0 1 L0922P05.dipool.hi:3074 ftp2.sourceforge.ne:ftp FIN_WAIT1 root 0 tcp 0 237 L0922P05.dipool.hi:1028 wombat.dhs.org:www ESTABLISHED root 1084 tcp 0 9 L0922P05.dipool.hi:3075 WS01IS07.highway.te:www ESTABLISHED root 4457 tcp 0 1 L0922P05.dipool.hi:3073 hiaslboy:13002 SYN_SENT kannel 4375 This what I get out of netstat. hiaslboy:~# insmod ipchains Using /lib/modules/2.4.0/kernel/net/ipv4/netfilter/ipchains.o hiaslboy:~# ipchains -L Chain input (policy ACCEPT): Chain forward (policy ACCEPT): Chain output (policy ACCEPT): Could I have done anything wrong with the kernel? (Linux-2.4 patched with reiserfs) I can't get enything working except ping and ICQ (I guess ICQ uses somehow ping-protokoll) Thank you, and please give me any hint how I can find more out. Right now I have no clue. Thank you, mattHias Wieser PS.: The system has never run successful, thus I can't say if it is kernel with something wrongly configured or not (it is the first instll) (now i am running SuSE) -- __ _ __ ********************* /\_/\ \ \_/ \_/ / * Matthias Wieser * / \ \ / * ICQ#: 12597522 * / /\_/\ \ \_/^\_/ * [EMAIL PROTECTED] * WW WW *********************