Install validation

With a lot of configuration possibilities, manually editing config.php means it's not uncommon that mistakes get made. It's also impossible to validate user input in config.php when you're just using a text editor :)

So, to try and help with some of the general issues people come across we've put together a simple validation tool which at present will:

  • Validate config.php from a php perspective including whitespace where it shouldn't be.
  • Connection to your MySQL server to verify credentials.
  • Checks if you are running the older alerting system.
  • Checks your rrd directory setup if not running rrdcached.
  • Checks disk space for where /opt/librenms is installed.
  • Checks location to fping
  • Tests MySQL strict mode being enabled
  • Tests for files not owned by librenms user (if configured)

Optionally you can also pass -m and a module name for that to be tested. Current modules are:

  • mail - This will validate your mail transport configuration.
  • dist-poller - This will test your distributed poller configuration.
  • rrdcheck - This will test your rrd files to see if they are unreadable or corrupted (source of broken graphs).

You can run validate.php as root by executing ./validate.php within your install directory.

The output will provide you either a clean bill of health or a list of things you need to fix:

OK - This is a good thing, you can skip over these :)

WARN - You probably want to check this out.

FAIL - This is going to need your attention!