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A couple days ago i received an alert that one of the disks on our linux production machines is filling up very quickly. It was the application server machine and the logging partition was running out of space rapidly. Logs filled up my disk How logs filled up my disk Gladly the log files are […]
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Last time i experienced problems with Zenoss. Zenoss suddenly stopped getting information from the clients, stopped graphing client data and i did not know what the reason was for this situation. I tried removing and readding the client but the job of adding a new client was even not processed. When i tried to re-model […]
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Recently i was migrating an Apache HTTP Server (httpd) server from one linux machine to another. The problem was, that on the source linux machine Apache HTTP Server (httpd) was a custom compiled 2.4.4 and we were having constant problems when patching the linux machine (openssl libraries etc.). So we decided to replace the custom compiled Apache HTTP Server (httpd) with […]
A while ago i noticed that /var partition on a certain server was almost filled up to a 100% up and started researching what caused this. I noticed that log files in /var/log directory were not rotating. I decided to run the log rotation manually when i got this error “error: bad top line in […]
Are you getting “Pnp4Nagios XML file not found Error”? Read this post and fix this error. Learn how to get Pnp4Nagios performance data graphs working.
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Fix Ubuntu Nagios 4 Init Script. Read this post and learn how to fix init script to work properly on Ubuntu Linux installations.
This is how you fix Nagios Error: Could not open command file ‘/usr/local/nagios/var/rw/nagios.cmd’ for update on CentOS and Ubuntu Linux.
Got “NRPE: Unable to read output” error in Nagios and do not know what exactly it means and how to fix it? Read this post and learn how to fix it!
Nagios Is The Industry Standard In IT Infrastructure Monitoring. Learn how to convert Nagios Log Unix Timestamp to human friendly and readable format.
