yes I do .. and other modules work just fine, as does the firewall. The only problem is iplimit flunking out with this unknown error. Its not even like its explaining what socket option is failing, nor are there any console messages from the kernel as it rejects the bogus socket option call. Chain CloseY (1 references) target prot opt source destination DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x16/0x02 REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 recent: UPDATE seconds: 1 hit_count: 10 name: Close side: source reject-with tcp-reset DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain OverX (0 references) target prot opt source destination all -- 0.0.0.0/0 0.0.0.0/0 recent: SET name: Last side: source DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x16/0x02 #conn/32 > 125 RETURN all -- 0.0.0.0/0 0.0.0.0/0 recent: CHECK seconds: 60 name: First side: source CloseY all -- 0.0.0.0/0 0.0.0.0/0 recent: CHECK name: First side: source RETURN all -- 0.0.0.0/0 0.0.0.0/0 recent: CHECK name: First side: source all -- 0.0.0.0/0 0.0.0.0/0 recent: SET name: First side: source Chain TcpLimit (0 references) target prot opt source destination RETURN tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x04/0x04 RETURN tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x01/0x01 Chain UnderX (0 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 recent: CHECK seconds: 60 name: Last side: source all -- 0.0.0.0/0 0.0.0.0/0 recent: REMOVE name: Last side: source all -- 0.0.0.0/0 0.0.0.0/0 recent: REMOVE name: First side: source >> >> I can't get the iplimit module to work for me, >> this is an SMP AMD machine. >> >> # iptables -A TcpLimit -m iplimit --iplimit-above 125 -j OverX RD> Do you have OverX and TcpLimit as chains? RD> Ramin >> >> iptables: Invalid argument >> >> strace -f ... >>