search for: fin_wait2

Hi, I am not sure to report this as a bug. so mailing to the list. I have sshd(openssh3.5p1) server running on my router and when i run tcpjunk to that port, sshd gets killed after some time 192.168.71.1 is my sshd server and 192.168.71.4 is my client from where i send my dos attack This is the tcpjunk command i gave to the ssh server #tcpjunk -s 192.168.71.1 -p 22 -c req -i 100 req session

...0 TIME_WAIT tcp 0 1 localhost:36886 66.37.52.232:80 SYN_SENT tcp 0 10164 localhost:80 58.187.121.173:10350 ESTABLISHED tcp 0 0 localhost:80 85.140.195.98:4052 TIME_WAIT tcp 0 0 localhost:80 66.199.253.130:57278 FIN_WAIT2 tcp 0 0 localhost:37384 213.41.23.61:80 TIME_WAIT tcp 0 0 localhost:80 72.232.110.18:4972 TIME_WAIT tcp 0 0 localhost:80 60.28.157.113:2827 TIME_WAIT tcp 0 1 localhost:80 121.10.164.117:13600 FIN_WAIT1 tcp...

...#39;s no apparent setting for that). Currently I have the system configured to take a lower amount of traffic, hovering at around 47% CPU, at around 833 req/s and it has 43k connections in these states: #### state ------------------ 65 CLOSING 94 ESTABLISHED 172 FIN_WAIT1 50 FIN_WAIT2 10 LAST_ACK 497 SYN_RECV 43480 TIME_WAIT On a side note, the 'active tcp sockets' reported by sar seems wildly inaccurate, it reports only ~10 active tcp sockets, it barely varies from the system being idle to the system being maxxed out. The docs I can find says seek expert as...

...ckstat sockets: used 304 TCP: inuse 444 orphan 302 tw 152 alloc 451 mem 5280 UDP: inuse 4 RAW: inuse 0 FRAG: inuse 0 memory 0 root at dl:~# netstat -tan | awk '{print $6}' | sort | uniq -c 2 CLOSE_WAIT 121 CLOSING 1 established) 109 ESTABLISHED 17 FIN_WAIT1 9 FIN_WAIT2 1 Foreign 300 LAST_ACK 20 LISTEN 2 SYN_RECV 433 TIME_WAIT It also doesn't seem to be out of file descriptors but I'm not 100% sure on that. And even if it were, wouldn't that produce an error, not hang? It does seem to be somewhat related to the number of conn...

...ose_wait connections to amazon s3? lsof -i -P | grep CLOSE_ | grep mongrel | wc -l 703 netstat | grep 56586 # an example port tcp 1 0 localhost.localdomain:8011 localhost.localdomain:56586 CLOSE_WAIT tcp 0 0 localhost.localdomain :56586 localhost.localdomain:8011 FIN_WAIT2 getnameinfo failed getnameinfo failed -------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/mongrel-users/attachments/20070718/1aef129a/attachment.html

...e_wait connections to amazon s3? lsof -i -P | grep CLOSE_ | grep mongrel | wc -l 703 netstat | grep 56586 # an example port tcp 1 0 localhost.localdomain:8011 localhost.localdomain: 56586 CLOSE_WAIT tcp 0 0 localhost.localdomain :56586 localhost.localdomain: 8011 FIN_WAIT2 getnameinfo failed getnameinfo failed #background loop to set the bad mongrel to debug mode during the close_wait period def debug_mongrel_loop sleep (60) until (`lsof -i -P | grep CLOSE_WAIT | grep mongrel | wc -l`).to_i > 100 `killall -USR1 mongrel_rails` AdminMailer.deliver_m...