Konstantin

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seen May 24 '12 at 7:42

Mar
22
awarded  Popular Question
Apr
18
comment sysctl tcp_max_syn_backlog dont work
Thanks! I got it! My trouble was been in next: 1. I was thinking, what somaxconn is limit for queue only established connection, not for SYN_RECV. 2. Some service have personal limit somaxconn: in nginx, for example, need set backlog=value in listen directive.
Apr
17
comment sysctl tcp_max_syn_backlog dont work
Thank for answer! But when i measure without syncookie, i get some (with 512 in backlog i have 256 in netstat). And why, when i was changed somaxconn, netstat value groved?
Apr
17
comment syn/ack sequence number confusion
Handshake on step 1,2,3 You send data, on step 4,7,9; seq=seq(-1)+len(-1): Remote host didnt send any, but recieve 3 packet with 2921 bytes, 5841 and 8761. 5,6,8 packet without payloads. This is ticket, what "I successfully recieve 2921 bytes" etc.
Apr
17
awarded  Editor
Apr
17
revised sysctl tcp_max_syn_backlog dont work
added 15 characters in body
Apr
17
answered syn/ack sequence number confusion
Apr
17
asked sysctl tcp_max_syn_backlog dont work