Hi list and Bob, my netstat -n shows nothing unusual: root@mybox:~# netstat -n Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 20 xxx.xxx.xxx.xx:22 yy.yy.yy.yy:1105 ESTABLISHED Active UNIX domain sockets (w/o servers) Proto RefCnt Flags Type State I-Node Path unix 24 [ ] DGRAM 57 /dev/log unix 2 [ ] DGRAM 7051 unix 2 [ ] DGRAM 4997 unix 2 [ ] DGRAM 4928 unix 2 [ ] DGRAM 2820 unix 2 [ ] DGRAM 2730 unix 2 [ ] DGRAM 2690 unix 2 [ ] DGRAM 2650 unix 2 [ ] DGRAM 2550 unix 2 [ ] DGRAM 2500 unix 2 [ ] DGRAM 2460 unix 2 [ ] DGRAM 2330 unix 2 [ ] DGRAM 2240 unix 2 [ ] DGRAM 2200 unix 2 [ ] DGRAM 2134 unix 2 [ ] DGRAM 2081 unix 2 [ ] DGRAM 2041 unix 2 [ ] DGRAM 2001 unix 2 [ ] DGRAM 1921 unix 2 [ ] DGRAM 1909 unix 2 [ ] DGRAM 1765 unix 2 [ ] DGRAM 1757 unix 2 [ ] DGRAM 60 that is it... tks Andre On 02/12/02, Bob Keyes wrote: BK> What does netstat -n show you? BK> I have seen this error when there are thousands of TCP connections open at BK> the same time (this was using the 'naptha' DoS demonstration tool I BK> wrote). BK> On Mon, 2 Dec 2002 andre.correa@pobox.com wrote: >> >> Hi list, >> >> I have a Linux 2.4.19 box doing NAT, PPPoE, Traffic Shapping and >> Firewalling. It is a 2xPIII 733MHz with 512Mb RAM. Everything was >> working just fine until 5 or 6 days ago we started having some strange >> behavior. >> >> Under moderate traffic, 15 to 20 NAT users, we find that traffic >> suddenly stops for 10 or 15 seconds and then comes back. During this >> periods I've figured out that if I ping my interfaces or Internet >> addresses I get: >> >> sendto: No buffer space available >> ping: sent 64 octets to xxx.xxx.xxx.xxx, ret=-1 >> >> I've made lots of searchs in mailling lists, Internet and in the >> kernel source but couldn't work on it. >> >> Can you guys help me to solve this problem? >> >> tks in advance for your help and attention. >> >> Andre >> andre.correa@pobox.com >> >> >> Andre Correa andre.docena@pobox.com
