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I need to monitor a Linux server. I'm searching for a monitoring tool able to store system information (CPU, RAM disks usage, Apache and Postfix status, etc.) throughout the day and send an email every day with a complete report.

Every monitoring tool I saw (nagios, monit, cacti, ...) has a web interface or it opens a port enabling a client access on the server. For security reasons I need to avoid this.

Any suggestions?

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  • sar from the sysstat package? Commented Mar 26, 2015 at 11:20
  • Sounds like you don't care whether the tool has a network interface; you care that any network interface that is available can be disabled. Commented Mar 26, 2015 at 11:22
  • I would write a custom made script and setup a ssh passwordless authentication to the servers I wanted to monitor. No risk of opening another port here. Commented Mar 26, 2015 at 11:41
  • thank you, i think sysstat will be perfect. Commented Mar 26, 2015 at 16:15

1 Answer 1

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I can suggest you a tool but I'm afraid it also has a web interface. It's called SeaLion. Even after knowing your apprehension for such tools I'm still suggesting you this tool because:

  1. The agent runs as an unprivileged user.
  2. All data transfer takes place over SSL connection.

So this should address your security concern.

The tool has a 'daily digest' feature that sends you an email everyday reporting any of the system metrics that crosses threshold. For more information refer to their website. I'm currently using this tool and so far it has been a smooth run.

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