Comments on How to Install Nagios Monitoring Software on Ubuntu 20.04 LTS

Nagios is open-source software for system and network monitoring. Nagios can monitor the activity of a host and its services and provides a warning/alert if something bad happens on the server.

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By: Yogaraj
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Muhammed Arul : Professional and clean on nagios installation. Thank you so much. Way to Go

By: Rajesh
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Neat and clean very good reference document.

By: Jim
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Well written. I tried another site before I found this one. I appreciate that you have the commands typed perfectly. I don't have to troubleshoot issues because of poor syntax. Well done.

By: Hank
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Very helpful. I get stuck at setting up the firewall (...for svc..). I run into a syntax eroor. Any sugestions for an alternative? 

By: Samarth
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Great Explanation. Thanks for this.. :)

By: Nhan Huynh
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This post is high quality, I got some issues in client01 by ubuntu 14.03, after change ubuntu version to 20.04 this work fine! Thanks you, you saved my day

By: nivas
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I am getting this error while restarting the NRPE fro client i have tried with diff machine still getting the same error 

can anyonehelp me through this ERROR 

? nagios-nrpe-server.service - Nagios Remote Plugin Executor

     Loaded: loaded (/lib/systemd/system/nagios-nrpe-server.service; enabled; vendor preset: enabled)

     Active: failed (Result: exit-code) since Sun 2021-11-14 16:26:35 UTC; 9s ago

       Docs: http://www.nagios.org/documentation

   Main PID: 16995 (code=exited, status=1/FAILURE)

 

Nov 14 16:26:35 ip-172-31-46-14 systemd[1]: Started Nagios Remote Plugin Executor.

Nov 14 16:26:35 ip-172-31-46-14 nrpe[16995]: Starting up daemon

Nov 14 16:26:35 ip-172-31-46-14 nrpe[16995]: Bind to port 5666 on 18.216.82.204 failed: Cannot assign requested address.

Nov 14 16:26:35 ip-172-31-46-14 nrpe[16995]: Cannot bind to any address.

Nov 14 16:26:35 ip-172-31-46-14 systemd[1]: nagios-nrpe-server.service: Main process exited, code=exited, status=1/FAILURE

 

Nov 14 16:26:35 ip-172-31-46-14 systemd[1]: nagios-nrpe-server.service: Failed with result 'exit-code'.

By: harsh
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check you local client ip 18.216.82.204 , is this correctly mentioned in nrpe.cfg , i had same issue so checked and found client ip was not correct in my client machine, i fixed by this.

By: praveen
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Hi team,I'm not able to get receive notifications form nagios like when ever the node down, I need to receive mail alert from nagios so can you guys please help us to get that notifications.Thaks and regards,

Praveen M.