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Apache causing server crash

Discussion in 'EasyApache' started by KonokoHost, Mar 7, 2005.

  1. KonokoHost

    KonokoHost Member

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    G'day

    Any help here is GREATLY appreciated. (and rewarded with cash upon them helping us out)

    Apache had been taking up a 99% (on average) CPU usage according to top. Now we notice the server keeps crashing. This has been happening since monday and we can not track the source.
    When pushing C in top to figure out the command, its just the apache binary with DSSL.

    I got the server back up and running and just need help in tracing the cause. This is a CPanel server with a rather small amount of sites on it (about 50 or s).
    I will respond with details if anyone asks for them.

    -randyc
     
    #1 KonokoHost, Mar 7, 2005
  2. dalem

    dalem Well-Known Member
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    most likely you have proceess or script thats hanging find it and killl it and fix or remove it
    look through your http access logs to find out which one

    and turn keep alive off in httpd.conf might help
     
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    #2 dalem, Mar 7, 2005
  3. KonokoHost

    KonokoHost Member

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    I ran a netstat -na and found an ip with llike 40 different IP addresses.

    Using apf I've blocked it and now the load is down.

    Any preventative steps to this you would recommend?

    -randyc

    edit: we also shut off keepalive.
     
    #3 KonokoHost, Mar 7, 2005
  4. jester.ro

    jester.ro Well-Known Member
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    what do you mean an IP with multiple ip addresses??
     
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    #4 jester.ro, Mar 7, 2005
  5. KonokoHost

    KonokoHost Member

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    my mistake, long day.


    I meant to say it was a single IP with quite a few connections. (A suspicious amount ;) )

    -randyc
     
    #5 KonokoHost, Mar 7, 2005
  6. dalem

    dalem Well-Known Member
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    Mod_security :)

    Find out which site which webpage or script was being attacked
    as these attackers will realize the ip they wre using just got blocked and move to another (usally a Proxy)
     
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    #6 dalem, Mar 7, 2005
    Last edited: Mar 7, 2005
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