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Thread: big server load

  1. #1
    Join Date
    Mar 2006

    big server load

    in the prossecs manager i have these result

    13800 nobody 4 67.8 0.5 /usr/local/apache/bin/httpd -k start -DSSL
    14846 nobody 4 67.1 0.4 /usr/local/apache/bin/httpd -k start -DSSL
    14724 nobody 4 65.8 0.4 /usr/local/apache/bin/httpd -k start -DSSL
    15689 nobody 4 65.7 0.4 /usr/local/apache/bin/httpd -k start -DSSL
    15692 nobody 4 64.9 0.5 /usr/local/apache/bin/httpd -k start -DSSL
    14777 nobody 4 63.6 0.4 /usr/local/apache/bin/httpd -k start -DSSL

    who is user nobody? why i have big server load?what i must do?

  2. #2
    Join Date
    Nov 2007
    nobody is apache it normal can u give us the output of top -c command
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  3. #3
    Join Date
    Oct 2004
    Kerala, India
    Use the following script to get the apache connections from different IPs to the server and block IPs that make more number of connections.

    netstat -plan|grep :80|awk {'print $5'}|cut -d: -f 1|sort|uniq -c|sort -nk 1
    David |
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  4. #4

  5. #5
    Join Date
    May 2009
    Use the command
    "netstat -alpn | grep :80 | awk '{print $4}' |awk -F: '{print $(NF-1)}' |sort | uniq -c | sort -n"

    to see if you are under DOS/DDOS attack.

    Manually blocking the IPs is a tedious process. I would suggest you to install dos_evasive along with APF or iptables to automatically block the attacking IPs.

    There are other tweaks too.. PM me if you need more details.

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