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answered how to use Parallel SSH with Amazon EC2 instances?
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awarded  Yearling
Jul
19
accepted Cheap way to detect client round trip times for http
Jul
19
comment Cheap way to detect client round trip times for http
Holy shit! it works and does exactly what i wanted. Thanks a lot. Accepting this as correct answer.
Jul
19
comment Cheap way to detect client round trip times for http
This looks very promising, however on nginx/0.8.54 the config doesn't validate : [emerg]: unknown "tcpinfo_rttvar" variable. Will try with newer versions.
Jul
18
awarded  Commentator
Jul
18
comment Cheap way to detect client round trip times for http
tcp[tcpflags] & tcp-syn !=0 seems to be dumping the syn sent by the client and the ack sent by the server. since i measure on the server side, the time difference is ~0
Jul
18
comment Cheap way to detect client round trip times for http
my goal is to know the round trip time of real traffic already going thru the server which is doing 100s of connections/second. Wouldnt it be inefficient to ignore the data already passing thru, and pinging each discovered IP? moreover ICMP could be blocked by many ISPs. remember im the server and want to know the latency from end users connections.
Jul
18
comment Cheap way to detect client round trip times for http
Would generating full .pcap file on a server doing 100 Mbit/second make the file huge and eat up all the IO available? +1 for tcptrace. I didnt know about it.
Jul
18
asked Cheap way to detect client round trip times for http
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answered Why do I see many mongod processes running?
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awarded  Popular Question
Aug
7
comment CronTab: Not running my PHP scripts?
ignore the <pre></pre> bit... the system was removing http:// portions from my previous comment
Aug
7
comment CronTab: Not running my PHP scripts?
in the other thread i think you mentioned you can access <pre>localhost/cron/sendQueuedEmails.php</pre>; ... however you can use this url <pre>actualdomain.com/cron/sendQueuedEmails.php</pre>; ... use your actual subdomain/domain hosting this file... the same url ud need to access via a browser. but make sure to modify this script to allow access ONLY from the server IP!
Aug
6
comment CronTab: Not running my PHP scripts?
Whats insecure about this method? you can always hack sendQueuedEmails.php to execute only if accessed from localhost.
Aug
5
answered CronTab: Not running my PHP scripts?
Aug
5
answered Apache Config for High Page View, Long Session Users - KeepAlive and MaxRequest variables
Jun
9
awarded  Supporter