Red Branch | For Future Reference …
In the WATO menu choose ‘Check Plugins’ and then ‘Networking checks without an agent’. Find the ‘HTTP/HTTPS connection’ option and then click on ‘Check HTTP service’ beside Parameter rule set: Scroll down to the bottom and click ‘Create rule in folder’ Set the parameters for the check , then save and activate.
On your check_mk install under the WATO menu navigate to ‘Monitoring Agents’ find and click on the link for ‘Check for APT updates (Debian, Ubuntu)’. This is the check plugin to add to the server so copy that code. Copy the contents of that check file to a file named mk_apt file in the /usr/lib/check_mk_agent/local… Read more »
On a CentOS 7 server with postifx already installed and working I found the emails from check_mk / OMD were not being sent. I needed a symlink for sendmail: ln -s /usr/lib/sendmail.postfix /usr/lib/sendmail Test with su – omduserecho “content” | mail -s test-email me@gmail.com
WATO > Manual Checks and click on “State and Count of Processes” Add the description, check-type, process name and process matching and set the levels for the number of these processes that are expected:
Visit the page below to download the mkp package: https://checkmk.de/check_mk-exchange-file.php?&file=linux-updates-1.0.mkp Upload the mkp package to your check_mk server then install it : OMD[mysite]:~$ mkp -v install linux-updates-1.0.mkp On the servers to be checked add the check shell script. cd /usr/share/check-mk-agent/local vi mk_linuxupdates.sh The code for the check is within the download but shown here too:… Read more »
On the Check_mk web UI visit:WATO menu > Monitoring Agents In the list on check agents you should find the nginx_status. Clicking on it shows the code for the check. Copy that code to the client server. The location on web001 for the check (for me anyway) was: /usr/share/check-mk-agent/local/nginx_status Make sure it is executable. On… Read more »
The scenario here is that I would like to add a ‘custom notes’ link to any services with the word ‘postfix’ in the name of the service. I started by visiting WATO and drilling down to a host and one of the services I was interested in adding notes to: Then scroll down and click… Read more »
By default check_mk places icons under a ‘hamburger’ icon as shown below. I wanted the ‘Custom Notes’ icon to be visible at all times rather than being located under the actions icon. To do that visit the ‘Global Settings’ menu item and under the ‘User Interface’ section find the option for ‘Builtin icon visibility’: Then… Read more »
