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Re: [hobbit] Debugging help: bbtest-net gets http test timing wrong
- To: hobbit (at) hswn.dk
- Subject: Re: [hobbit] Debugging help: bbtest-net gets http test timing wrong
- From: Tim McCloskey <devzero (at) cox.net>
- Date: Mon, 16 Jun 2008 19:42:21 -0700
- References: <48530EE9.1090508 (at) doublesparks.net> <4855BA91.5080401 (at) doublesparks.net> <4855EED8.9030108 (at) cox.net> <4855EF81.50502 (at) doublesparks.net> <4855F7B7.4050607 (at) cox.net> <48571819.1030907 (at) doublesparks.net>
- User-agent: Thunderbird 1.5 (X11/20051201)
So, the hobbit server initiates a SYN to the web box. The first SYN is lost in space and hobbit hits the web box again
in 3 seconds and get an ACK. Correct?
What is seen on the web side for the first SYN from hobbit and the subsequent response of the web box? Does the web
side even see the initial SYN request? If so perhaps you could toss something together to strace the httpd process
during this time.
Regards,
Tim
Ps. Some other off the wall questions just to sidetrack you even more:
Are you running iptables or arptables and have you explicitly shut off ipv6 in modules.conf, how about selinix disabled,
or enforcing? Yeah, I know, they don't make sense but helps me to understand the environment.
Alan Sparks wrote:
> 15:20:01.160095 IP (tos 0x0, ttl 62, id 31129, offset 0, flags [DF],
proto 6, length: 60) hobbit.45116 > target.http: S [tcp sum ok]
265769416:265769416(0) win 17520 <mss 8760,sackOK,timestamp 143665233
0,nop,wscale 2>
15:20:04.159715 IP (tos 0x0, ttl 62, id 31131, offset 0, flags [DF],
proto 6, length: 60) hobbit.45116 > target.http: S [tcp sum ok]
265769416:265769416(0) win 17520 <mss 8760,sackOK,timestamp 143668233
0,nop,wscale 2>