We can trace the user responsible for high web server resource usage by the folowing command
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cat /etc/httpd/logs/access_log | grep mp3

cat /etc/httpd/logs/access_log | grep rar

cat /etc/httpd/logs/access_log | grep wav etc

cat /etc/httpd/logs/access_log | grep 408 can be used to check for DDOS attacks on the server.

cat /etc/httpd/logs/access_log | grep rar
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You can check if any backup is going on, run the following commands
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ps aux | grep pkg

ps aux | grep gzip

ps aux | grep backup

ps aux | grep buagent
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Use below mentioned command to get top memory consuming processes
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ps aux | head -1;ps aux –no-headers| sort -rn +3 | head
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Use below command to get top cpu consuming processes
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ps aux | head -1;ps aux –no-headers | sort -rn +2 |more
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