Motherboard temperature monitoring with Monit allows you to keep a check on your server for adequate cooling. Monit is an automatic monitoring, maintenance, and repair utility for Unix systems. If the motherboard temperature is high Monit will send you an email alert. You can then examine and resolve any issues. In this Monit tutorial, I will show you how to monitor motherboard temperature with Monit on your home server. By Motherboard temperature monitoring I mean the temperature as detected by the sensors in your motherboard. I am assuming that you have already installed and configured Monit following my previous guide.
Monitor your home server with Monit:
- Home server system load monitoring (CPU, RAM, Swap)
- Server hard drive storage monitoring (HDD space)
- Motherboard temperature monitoring
- Processor or CPU temperature monitoring
- Monitor Hard drive SMART health and temperature
- Monitor file server status (Samba and NFS)
- Monitor web server status (Apache, NGINX, and MySQL)
- Monitor CouchPotato process status
- Monitor SickBeard process status
- Monitor SickRage process status
- Monitor SABnzbd process status
- Monitor Webmin process status
- Monitor qBittorrent process status
- Monitor Transmission process status
- Monitor ShellInABox process status
Table of Contents
Install lm-sensors to Detect Temperature
First, you need a software called lm-sensors
installed on your system. lm-sensors
detects the components in your system and loads the right pieces of code to monitor various temperatures: motherboard temperature, CPU temperature, auxiliary temperature, fan speed, voltages, PCI adapter temperature, and more. Use the following command to install lm-sensors.
sudo apt-get install lm-sensors
Once lm-sensors
is installed you will have to go through some diagnostics to detect your hardware. Run the following command:
sudo sensors-detect
You will be asked to say "yes" to go through various stages of detection. There are several warnings along the way. Be sure to read them before proceeding. In my case, I said "yes" to all steps and completed the sensor detection process without any issues. Also note that not all motherboards and processors are compatible with such monitoring software. You need a working lm-sensors
instance for Monit system temperature monitoring.
If you complete the detection process successfully, you can verify if lm-sensors is working correctly using the following command:
sensors
You should see an output like the one in the picture below.
At the time of taking this screenshot my AMD CPU was at 35 degree C (CPUTIN) and ASROCK motherboard was at 31 degree C (SYSTIN). I have not been able to figure out what AUXTIN measures. In this guide we are only going to monitor Motherboard temperature with Monit. If you see an output as above with temperature readings listed, then you are good to proceed and configure Monit.
Create Monit Motherboard Temperature Monitoring Scripts
Before, we can monitor motherboard temperature with Monit, we will need to create a script that will check Motherboard temperature and reports it to Monit. If it does not exist already, create a folder called "scripts" inside /etc/monit
using the command below:
sudo mkdir /etc/monit/scripts
Next, create a new motherboard temperature monitoring script:
sudo nano /etc/monit/scripts/mbtemp.sh
Copy the following contents to it, save, and exit (press Ctrl X, press Y, and press ENTER).
#!/bin/sh MBT=`sensors | egrep SYSTIN | cut -c18-19` #echo $MBT exit $MBT
Next, give execute privileges to the script using the following command:
sudo chmod 755 /etc/monit/scripts/mbtemp.sh
Finally, verify that the script works and outputs the motherboard temperature. To do this, temporarily remove the # in front of line 3, save, exit, and run the command below. Motherboard temperature should appear in the next line as shown below:
$ sudo ./etc/monit/scripts/mbtemp.sh 31
If you see the temperature printed then you are good to go. Reopen the /etc/monit/scripts/mbtemp.sh
, add the # in front of line 3 and make it look like the code block above, save, and exit.
Motherboard Temperature Monitoring with Monit
Next, it is required that you have a working Monit instance with a proper /etc/monit/monitrc
file. Monit configurations for various services are loaded from /etc/monit/conf.d
folder. For motherboard temperature monitoring with Monit, create a Monit configuration file using the following command.
sudo /etc/monit/conf.d/mbtemp
Copy the following contents to it, save, and exit (press Ctrl X, press Y, and press ENTER).
# set the trigger temperature check program MB-Temp with path "/etc/monit/scripts/mbtemp.sh" if status > 42 then alert
This code will help monitor motherboard temperature with Monit. If the cooling is not adequate or if one of the fan fails and the motherboard heats up Monit will send you and email alert. An example of Monit alert is shown below.
I looked at the average temperature of my Motherboard using the sensors
command and added 10 C to it to set the target of 42 degree C. My HTPC-NAS Combo setup does not generate much heat. Don't be alarmed if your temperature is much higher than the numbers listed here.
Test and Reload Monit
Once you make any changes you have to test Monit configuration:
sudo monit -t
You should see the following message: Control File Syntax OK. Then, check to see if Monit is already running using the following command:
sudo /etc/init.d/monit status
If Monit is running, reload Monit configurations using the following command:
sudo /etc/init.d/monit reload
If Monit is not running, then start it using sudo monit
command instead. The whole sequence of commands for testing and reloading Monit is shown in the picture below.
Now, fire up your web browser and visit one of the following URLs depending on how your Monit is configured (be sure to use the correct port number):
- http://localhost:2812
- http://IPADDRESS:2812 (local network IP)
- http://domain.com:2812 (if you have domain name pointing to your server)
You should see the motherboard temperature listed in your Monit WebUI as shown in the picture below (see MB-Temp).
That is it for Motherboard temperature monitoring with Monit. As you can see Monit allows for automatic system temperature monitoring, which can be a big help for administrators. Monit Wiki page has several examples. More home server specific Monit examples to follow, so keep checking back.