Here's the official documentation for monitoring:

• Microsoft SQL Server
• Oracle
• MySQL

I *think* there's also Configuration Wizards within the Nagios XI interface for all of the above.

Here's a related KB article: https://support.nagios.com/kb/article.php?id=518 There's a section with some troubleshooting steps specific to NSClient++ that you can attempt. Also a related forums post: https://support.nagios.com/forum/viewtopic.php?f=6&t=42993 It would also be useful to know whic...

Granted I don't have access to the 2.1.4 RPM from EPEL, I'm not able to reproduce this using a separate 2.1.4 build against 2.2.1 in EPEL: # rpm -i nagios-plugins-2.1.4-3.el7.centos.x86_64.rpm warning: nagios-plugins-2.1.4-3.el7.centos.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID ac25decd: NOKEY...

Looks as though check_ping hasn't changed in quite a long time: https://github.com/nagios-plugins/nagios-plugins/commits/master/plugins/check_ping.c $ sha256sum nagios-plugins-2.1.2/plugins/check_ping.c 746f4127c14c75d43d918c19975d13372198321bcbc6897cf37fb54bac6f9dcd *nagios-plugins-2.1.2/plugins/ch...

You could try running make with ld in debug mode: https://stackoverflow.com/questions/16710047/usr-bin-ld-cannot-find-lnameofthelibrary?rq=1 Like so: LD_DEBUG=all make all-recursive Bottom line is this isn't a Nagios Core or a mklivestatus problem, it's a problem with the environment on which you're...

I'll assume this is the plugin you're referring to: https://exchange.nagios.org/directory/Plugins/Security/check_ddos/details All this plugin does under the hood is run a netstat command and parse the output: netstat -antu | grep SYN_RECV | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -rn ...

You are sending a message from your Python code to the syslog input rule that comes pre-installed with Nagios Log Server. Problem is, your message is not syslog compliant ( RFC3164 ). The Nagios Log Server input rule is looking for a syslog formatted message, and you're sending it something complete...

Are you using Nagios Core or Nagios XI? You posted in the Nagios Core section, but mention Nagios XI. Check your mail server logs if you have access to them. Many mail servers straight up reject any messages sent via sendmail, in which case you may need to configure an SMTP server instead to "p...

"time_up": 1569920418, <-- How do I translate this into something meaningful? That looks like a Unix epoch to me: https://www.epochconverter.com/ Practically every main-stream programming language has standard libraries/tools for turning that into something human-readable. Also, practical...

I did a Python implementation of executing generic WQL queries a while back: https://github.com/mcapra/nagios-check_wmi It's not quite as feature rich as check_wmi_plus, but it does circumvent the "executing wmic on the back-end" problem. You could just as well feed an encrypted password i...