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I need help with my dedicated Ubuntu server.
How can I reboot my server every 4 hours?

Zanna
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G. Macasero
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    Have you thought about cron? Something like `0 */4 * * * sudo reboot`? – AnotherKiwiGuy Dec 07 '16 at 08:29
  • Im just new with ubuntu. but i know about crontab – G. Macasero Dec 07 '16 at 08:30
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    Why do you need your server rebooted? As ThatGuy mentioned, cron may be a good place to start. But in general Unix and Unix-like machines should be capable of running for days (or even weeks or months!) without needing restarted. It sounds like there may be another issue that needs addressing. – John N Dec 07 '16 at 08:35
  • Because i'm runnning 8 minecraft servers in my dedicated server. – G. Macasero Dec 07 '16 at 08:38
  • @JohnN has a point. Even with Minecraft servers, they should not require that the server be rebooted that frequently, unless you've misconfigured the game servers, or use mods with severe memory leaks. – AnotherKiwiGuy Dec 07 '16 at 08:39

1 Answers1

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The crontab Method

  • Open your Terminal or SSH into your server
  • Type sudo crontab -e and the press ENTER
  • Use the down arrow key to go to the bottom of the text
  • Type 0 */4 * * * sudo reboot
  • Press CTRL+X
  • Press Y
  • Press ENTER

If all went well, it should reboot every 4 hours, on the hour.

AnotherKiwiGuy
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  • But would it automatically log in to the user account? – Giridhur Dec 07 '16 at 08:49
  • What user account? It would reboot the server using the root account, which should override every other user, regardless who is logged in. – AnotherKiwiGuy Dec 07 '16 at 08:55
  • @ThatGuy I think Giridhur is asking if after restart the log-in will be automatic. –  Dec 07 '16 at 14:02
  • @tomas - I see. If it is using Ubuntu Server, then definitely not. It would be a potential security problem, no administrator wants their server to auto login. If it's Ubuntu Desktop, then it depends on how he configured it. – AnotherKiwiGuy Dec 07 '16 at 22:14
  • @ThatGuy I think you should address your reply @ Giridhur. –  Dec 07 '16 at 22:27