user controls - job scheduling in linux -

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I want to set up access to some websites for a limited period, say for 1 hour every day. How can I do this by using cron jobs in linux or can i use linux squid server?

In / etc / crontab: 

  0 18 * * * Root /etc/init.d/apache start 0 19 * * * root /etc/init.d/apache stop

Apache service will start at 18:00 every day, and stop 1 Adjust as required for your distorted init script structure every day at 9:00.


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