Installation
To install these plug-ins:
- Right click on the file name and copy the link location.
- Log into Scout and select the server you would like to add the plug-in for.
- Click on the plug-in selection drop down and select "Install a plug-in ..."
- Click on "Enter Plugin Details Manually"
- Assign a name to the plug-in and paste in the URL from step 1 above
- Set the Interval as appropriate
- Click create and wait for your next polling period
Monitor number of active logins (active_logins.rb)
Last updated: 2008/04/16 @ 00:15 CST
Description: Track the number of people logged into your server (via console, ssh, telnet, etc. ) at a particular time.
Monitor /proc/mdstat (mdstat.rb)
Last updated: 2008/04/22 @ 20:14 CST
Description: Monitors /proc/mdstat for disk failures. Tested on a Debian Linux host running kernel 2.6.18-6-amd64 SMP with mdadm v2.5.6. The host has two drives configured in a RAID1 configuration. Obviously, I don't have a sufficient testbed, please let me know if you find errors with your configuration. I can be reached at mark -at- this domain.
Note: A couple people have asked "Why not use mdadm?". I didn't use mdadm because I didn't want a script hosted on another site to have that much access to my disk.
Monitor time drift from official NIST time (time_drift.rb, time_drift.yml)
Last updated: 2008/04/17 @ 00:15
Description: Checks time with NIST using daytime and calculates drift with the host being monitored. Alerts based on a user settable value indicating maximum drift. Requires two files: the source + the yaml file.
Monitor that a dynamic DNS address is current (dyndns.rb, dyndns.yml)
Last updated: 2008/04/21 @ 23:14
Description: I've had several times in the past when, for one reason or another, my dynamic DNS entry becomes out of date. The monitor compares your current IP address to the hostname provided and checks to see that they are equal. This must be running behind or on the dynamic address.