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Symantec Endpoint Security Enterprise

exit 0

Save this file and use chmod to give it executable permission. Then use crontab –e command to add the following line:

*/10 * * * * /home/testadmin/killtop >> $HOME/killtop.log 2>&1

It will run this script every 10 minutes and the script checks if the server has been consuming 100% CPU on average in last 10 minutes. If it is, then it will find the top CPU consuming process and kill it.

Now the CPU_THRESHOLD value needs some discussion. The “100% utilization” mark is 100 on a single-core system, 200, on a dual-core, 400 on a quad-core, etc. has a very nice discussion on this.

Tuning PNG, JPEG for faster site load performance

You can use OptiPNG and JpegTran, two utlities to heavily compress PNG and JPEG files in your website. Sometimes these tools save 70% file size.

First install these tools:

apt-get install opting

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