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I have an apache server, and there are lots of connection opened by a user, and it never ends. Already ran for 4886 seconds and keeps counting. There are 80 such requests.

The page is simple, and not a download page.

So I have two questions:

  • What is the reasonable time to set for apache for: sending reply?
  • How to set this for the apache2?
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you need to use iptables to block this users ip address, your under a DOS attack. –  The Unix Janitor Feb 9 '12 at 15:57
    
What do the requests look like? What's recorded in the access log? –  Shane Madden Feb 9 '12 at 16:23
    
They are fine HTTP1.1 access. It was not a DOS attack, it was from a known user. –  Pentium10 Feb 9 '12 at 19:29
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1 Answer

up vote 1 down vote accepted

You're probably running an apache version prior to 2.2.21, which means you are vulnerable to the HTTP Range exploit documented in CVE-2011-3192 - please read that document on how to remedy.

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