| Icinga – Notification template with notes support |
I have just configured an Icinga2 notification template for hosts and services to replace the ugly and impractical default one.
Not big things but useful in my opinion
UTF Icons are included depending on the state of the host or service
This notifications scripts can include … Read more
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| Icinga – Notes section in markdown language |
Not sure since what version this feature is available but I have started to use the notes section of the services i am monitoring in Icinga in markdown syntax.
icingaweb2 package version 2.6 that is compiled for Debian 10 (Buster).
Package: icingaweb2
Version: 2.6.2-3You may think you do not need it for, but in my humble opinion it is … Read more
| Linux – SQL Server command line to perform queries (mssql-cli) |
There are different methods to run queries against an SQL Server from a Linux machine. The one I am using is mssql-cli (https://github.com/dbcli/mssql-cli)
As you can check in the related github website, it has the following features:
It has been packetized for a lot of distributions … Read more
| Powershell – Could not create SSL/TLS secure channel |
I use Powershell to send monitoring results to the Icinga API (passive checks). For example, to check if the Exchange backups were processed correctly, I run a Exchange powershell and then the results are sent using “Invoke-WebRequest” command.
Since I disabled obsolete and insecure TLSv1 and TLSv1.1 protocols in the Exchange server, the script was not working anymore returning error:… Read more
| Home Server (8) – Update iLO4 firmware (HTML5 console) |
In this post, I show how I update my Microserver Gen8 iLO4 version. One of the ways to do it is via command line but i decided to use the web interface (the most common way).
At the time of writing this, the version i had was iLO 2.50 (Sep 23 2016) and the new version is … Read more
| Checkpoint – Useful SNMP OIDs to monitor (VSX) |
It is very important to keep your Checkpoint environment monitored. Given that it offers a wide variety of SNMP data, I have collected some of the (in my opinion) most useful OIDs MIBs. Altough I use Icinga and Grafana (as you can see the related outputs in this post), almost any monitoring system can be used to get … Read more
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| Icinga – Monitor SSL certificate expiration date |
A common task among system administrators is the renewal of SSL certificates. It is important to keep track of expiration dates so that it is not too late for us to renew it.
You can simply create an excel or some other type of record of the certificate dates, but you have to remember to check it from time … Read more
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| Icinga – Cannot login to Grafana. Forgot admin password |
It is not the first time my Icinga suddenlty, stops showing the grafana graphs.
If trying to log to Grafana, admin password is not accepted. I am pretty sure i have not changed the password but I am unable to login to Grafana.
And even worse, given that I still have not configured Grafana SMTP section / admin … Read more
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| Icinga2 – Understanding checks and notification types |
Here I am trying to present (I hope in an easy way to understand) some Icinga concepts (maybe also applicable in Nagios) like active and passive checks, enabling and disabling freshness checks, soft and hard states,… and the related parameters to configure them.
There are two types of services:
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| Icinga – Installation / Setup on Debian Linux (1) |
As you can see in previous posts…, Im in love with Nagios to monitor my systems… after creating some powerful, customized plugins for my Checkpoint firewalls, Exchange servers… cannot live with it… but maybe, it's "a bit" old fashioned and I have decided to try the Icinga monitoring tool. If it fits my environment, I'll have to replace my old … Read more
