David Darmon | 19 Nov 11:01 2015

Check Http

I found your explanation about Nagios Check_http plugins very helpful, I just have one question about the use of a certificate to be used in establishing the SSL session.
I try to use the -J argument, but it doesn't work for me.
There is a chance you will send me an example of how to use it?


Thank you,
Best Regard.

David Darmon

T: +972-73-2656637  |  F: +972-3-3730099  E: davidda-mIDcfuGpVKMAvxtiuMwx3w@public.gmane.org

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Sam Shabani | 16 Nov 21:30 2015

Question regarding the function of check-snmp plugin

Hi Dear,

If the result of snmpget command was string , Could you please tell me how the check-snmp plugin works? It sounds that  the string convert to interger but  how does it find the integer parts of string ? 

The following is the output : 
[root <at> localhost tmp]# /usr/lib64/nagios/plugins/check_snmp -H IP_ADDRESS -o . -C public 
SNMP OK - "    56% of maximum" | 
[root <at> localhost tmp]# /usr/lib64/nagios/plugins/check_snmp -H IP_ADDRESS -o . -C public -w 50
SNMP WARNING - *56* | iso.;50;;

Thanks a lot ,
Frank Bulk | 11 Nov 07:26 2015

check_http bug with SSL?

Is this a bug that's resolved in a later release?

root <at> nagios:/usr/lib/nagios/plugins# ./check_http --ssl -p 443 -H
CRITICAL - Cannot make SSL connection.
15408:error:14077438:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert
internal error:s23_clnt.c:607:
root <at> nagios:/usr/lib/nagios/plugins#
root <at> nagios:/usr/lib/nagios/plugins# ./check_http --version
check_http vv2.1-5-g668ef (monitoring-plugins 2.1)
root <at> nagios:/usr/lib/nagios/plugins#

Jerico Rubion | 2 Nov 07:01 2015

Usage of check_udp plugin


Would like to inquire example of how to use this specific plugin.

I used this command and nothing happened,

./check_udp -H <hostname> -p 1812

I want to monitor if port 1812 from Network Policy Server is listening, what should be the strings or settings that must be used in the argument of this command. Thank you

Jerico M. Rubion | Systems Engineer | IT Office - Manila | ULLINK Ltd |  Direct: +63 2-459-4858 | Mobile: +63178194868 |  Email: jerico.rubion-AaKzzmagMfXQT0dZR+AlfA@public.gmane.org | 5th Floor Multinational Bancorporation Centre | 6805 Ayala Avenue, Makati City, Philippines 1226

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hen darlig | 26 Oct 13:27 2015




we installed this Plugin on our Icinga 2 Server: http://manpages.ubuntu.com/manpages/trusty/man7/check_imap_quota.7.html because we would like to use the command check_imap_quota to monitor the growth of our Exchange Mailboxes.

There seems to be nothing wrong with the script itself, we can contact the server with the right login credentials and imap port but we get the following result:




The script does not display the current size of the Mailbox ($quotaPercentage is missing).


We also get the same result when we change the these values to zero:


my $quotaPercentageWarning = 80;
my $quotaPercentageCritical = 90;


Maybe someone can give me a hint? Thx!





Holger Weiß | 16 Oct 11:53 2015

Monitoring Plugins 2.1.2 released!

The Monitoring Plugins Development Team is proud to announce version
2.1.2 of the Monitoring Plugins!

This is a maintenance release that includes a number of bug fixes
provided by eight different contributors. Many thanks to all of you!

You can get the tarball from our web site:


Happy monitoring!

Giulio Carella | 15 Oct 13:30 2015

help with check_vmware_api

I’m trying to install “check_vmware_api”  plugin for Nagios Core, buti it requires the old Nagios::Plugin to be installed, not the updated one you’re working for.
In particular I get this error:

“Can't locate Monitoring/Plugin/Functions.pm in <at> INC ( <at> INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at ./check_vmware_api.pl line 39”


With line 39 pointing at Nagios::Plugin


How can I overcome this problem?

sachin bhomale | 23 Sep 10:51 2015

check established connections

Hi Team ,

Please help me with configuring few connection monitoring , i want to monitor established connections on windows on different ports .

Thanks & Regards , 
Sa chin Bhomale 

Molly Elizabeth | 15 Sep 17:58 2015

MonitoringPlugins - GIT tutorial?

Hey MonitoringPlugins,

I’m Molly from an education company called Udemy, and we created a GIT tutorial for our students. We realized that there are also so many other people who can use it too, which is how I found you.

Since I saw you are already using a similar tutorial from Kernel.org, I wanted to pass our tutorial along in case you want to add more resources to your site.

Is this something you want to post on your page? If so, please do! We're just here to help people learn.


Udemy, as featured in:
Fortune: "Online education marketplace Udemy raises $65 million for international expansion..."
Forbes: "Closing The Skills Gap: How Udemy Is Helping Anyone Learn Anything"
TIME Money: "How I Made $100,000 Teaching Online"

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Samuel Mutel | 18 Sep 14:11 2015

Segmentation Fault(coredump) on solaris 10


After compiling monitoring-plugins on solaris 10, i tried to use check_procs plugin.
The result is Segmentation Fault(coredump).

Any help on this topic will be appreciate ?

Brian C. Hill | 16 Sep 21:37 2015

bug introduced into "nagios-plugins-log" rpm in on RHEL/CentOS 6


Something weird happened when we did the latest yum update.

The plugin rpms in EPEL were updated from v1.4.15 to v2.0.3.

There is a weird 'bug' that is now check_log.

In v1.4.15, these tool variables are correctly set to their locations:


But in v2.0.3 they've been _reversed_ - none of them work now:


Has anyone else noticed this?