Lots of 408 Request Timed Out from same IPs

Posted by GreatFire on Server Fault See other posts from Server Fault or by GreatFire
Published on 2012-06-20T01:42:16Z Indexed on 2012/06/20 3:17 UTC
Read the original article Hit count: 489

Filed under:

nginx

|

webserver

|

http

Web server: Nginx.

Checking our log files, there are many log entries of connections that:

take 59-61 seconds
send an empty request (or at least none is logged)
result in a 408 response (request timed out)
do not contain any http_user_agent
originate from a limited number of IPs

We are monitoring average times to serve responses and this obviously inflates our statistics. Apart from that though, is this a problem? Any idea why it is occurring? Does it suggest that somebody is intentionally messing with us? What should we do?

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