Monitoring HTTPD

[donnyforbes]

Informix run something called OAT which is really HTTPD. I want to monitor this on my linux server. What is the best way to do this.
Basically I need to be notified when the service is not running...

[lmiltchev]

Do you have an agent installed on the Informix machine? Are you currently monitoring it (for example via NCPA, NRPE, SNMP, etc.)? I would recommend trying NCPA first if you haven't done this already.

[mcapra]

Basically I need to be notified when the service is not running...

Piggy-backing off @lmiltchev, NCPA makes checking the status of some init unit/service pretty easy:
https://www.nagios.org/ncpa/help.php#ap ... s-services

More general purpose info about checking init systems:
https://support.nagios.com/kb/article/s ... s-775.html

[lmiltchev]

Thanks Matt!

[donnyforbes]

Yes on this Linux Machine that I want to monitored httpd on we are using NRPE. Please give me detail on how to monitor httpd.
On the same machine I am monitor connection manager and informix that is working as well. I just need to get httpd monitored now.
Please advise.

Thanks

[lmiltchev]

You can try using the check_procs plugin. Test the plugin first by running it locally (on the remote box):

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/path/to/check_procs -c 1: -C OAT

The check should turn critical if less than 1 process, called "OAT" is found. I am not sure if this is the actual name of the process - can't test it in-house. What do you see when you run "ps -ef" from the CLI?

[donnyforbes]

ok do I test from the remote servers running informix or from the nagios server itself?

Here is what I see
0:05:56 /usr/infx1210fc8/OAT/Apache_2.4.2/bin/httpd -f /usr/infx1210fc8/OAT/Apache_2.4.2/conf/httpd.conf -k start

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root     55448     1  0 Nov05 ?        00:00:50 /usr/infx1210fc8/OAT/Apache_2.4.2/bin/httpd -f /usr/infx1210fc8/OAT/Apache_2.4.2/conf/httpd.conf -k start
daemon   55449 55448  0 Nov05 ?        00:05:44 /usr/infx1210fc8/OAT/Apache_2.4.2/bin/httpd -f /usr/infx1210fc8/OAT/Apache_2.4.2/conf/httpd.conf -k start
daemon   55450 55448  0 Nov05 ?        00:05:45 /usr/infx1210fc8/OAT/Apache_2.4.2/bin/httpd -f /usr/infx1210fc8/OAT/Apache_2.4.2/conf/httpd.conf -k start
daemon   55451 55448  0 Nov05 ?        00:05:47 /usr/infx1210fc8/OAT/Apache_2.4.2/bin/httpd -f /usr/infx1210fc8/OAT/Apache_2.4.2/conf/httpd.conf -k start

[lmiltchev]

Test running the plugin on the remove machine first, in order to make sure it works locally.

What is the output of the following command, run as root and as nagios user?

Code: Select all

/path/to/check_procs -c 1: -C httpd

[donnyforbes]

Test running the plugin on the remove machine first, in order to make sure it works locally.

What is the output of the following command, run as root and as nagios user?

Code: Select all

/path/to/check_procs -c 1: -C httpd

How can I find the path to check_procs? is there a default one?

Thanks

[donnyforbes]

Ok here is the output from the remote server...

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[root@huey ~]# /usr/local/nagios/libexec/check_procs -c 1: -C httpd
PROCS OK: 5 processes with command name 'httpd' | procs=5;;1:;0;
[root@huey ~]#

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[root@huey libexec]# su - nagios
Last login: Mon Nov 19 14:17:05 PST 2018 on pts/0
[nagios@huey ~]$ /usr/local/nagios/libexec/check_procs -c 1: -C httpd
PROCS OK: 5 processes with command name 'httpd' | procs=5;;1:;0;
[nagios@huey ~]$

output from NAGIOS Server

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[root@nag libexec]# /usr/local/nagios/libexec/check_procs -c 1: -C httpd
PROCS OK: 11 processes with command name 'httpd' | procs=11;;1:;0;
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[root@nag libexec]#