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    Monitoring service status

    Scheduled Pinned Locked Moved General pfSense Questions
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    • R
      rct
      last edited by

      I have setup those checks with Nagios and NRPE.

      If it can help someone :

      • Install NRPE via System>Packages
      • Download the zipfile (http://www.filedropper.com/checkpfsvc). It contains 2 files : "check_pfsvc" which is the nagios plugin used by nrpe to do the services check and "svc" which is a pfSense 2.2 version of the file /etc/phpshellsessions/svc
      • Transfer "check_pfsvc" in /usr/pbi/nrpe-amd64/libexec/nagios (it should be another location for 32b installations) and do a chmod 555 on it ; chown it to root and set the group to wheel
      • If your pfSense version is <2.2 backup your /etc/phpshellsessions/svc and replace with the file provided in the archive

      After that configure NRPE as you need. See nrpev2.png to see how i've configured it.

      nrpev2.png
      nrpev2.png_thumb

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      • R
        rct
        last edited by

        Hello,

        I'm back because I've upgraded to latest pfsense release and my script does not work through NRPE but it works from root account through SSH.
        I've tried to port it to sh script but it does not work. The error I catch from the nrpe launch of my script is /usr/pbi/nrpe-amd64/local/libexec/nagios/check_pfsvc: /usr/local/sbin/pfSsh.php: not found

        Does someone has an idea why it does not work anymore?

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        • R
          rct
          last edited by

          No idea? I think it's a modification on rights or in the nrpe plugin but I can't find it.

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          • R
            rocaembole
            last edited by

            @rct:

            I have setup those checks with Nagios and NRPE.

            If it can help someone :

            • Install NRPE via System>Packages
            • Download the zipfile (http://www.filedropper.com/checkpfsvc). It contains 2 files : "check_pfsvc" which is the nagios plugin used by nrpe to do the services check and "svc" which is a pfSense 2.2 version of the file /etc/phpshellsessions/svc
            • Transfer "check_pfsvc" in /usr/pbi/nrpe-amd64/libexec/nagios (it should be another location for 32b installations) and do a chmod 555 on it ; chown it to root and set the group to wheel
            • If your pfSense version is <2.2 backup your /etc/phpshellsessions/svc and replace with the file provided in the archive

            After that configure NRPE as you need. See nrpev2.png to see how i've configured it.

            I can't download the zipfile =(

            that link redirects me to filedropper.com

            No Pain
            No Gain

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            • R
              rct
              last edited by

              It doesn't work anymore on pfSense 2.2.x and I can't find why. Sorry.

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              • R
                rocaembole
                last edited by

                No problem, i need it for a pfSense 2.1-RELEASE

                BTW: Anyone knows this package? https://exchange.nagios.org/directory/Plugins/Software/check_squid/details

                check_squid

                teorically it must be installed on Nagios Server (in my case, is a Ubuntu 14.04)

                idk if this works properly because i can't run it. It says

                Can't locate Nagios/Plugin.pm in @INC (you may need to install the Nagios::Plugin module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .)Can't locate Nagios/Plugin.pm in @INC (you may need to install the Nagios::Plugin module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .)

                I know this isn't a Nagios forum, but just for share the experience

                No Pain
                No Gain

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                • R
                  rct
                  last edited by

                  You can find the file attached to this message.

                  check_pfsvc.zip

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                  • R
                    rocaembole
                    last edited by

                    @rct:

                    You can find the file attached to this message.

                    thanks, [hippie] i love you [/hippie]

                    No Pain
                    No Gain

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                    • R
                      rct
                      last edited by

                      For your Nagios issue I think you miss the perl lib that has been written as a "template" for creating nagios plugins (https://exchange.nagios.org/directory/Plugins/*-Plugin-Development-Tools/Nagios-3A-3APlugin/details).

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                      • R
                        rocaembole
                        last edited by

                        @rct:

                        For your Nagios issue I think you miss the perl lib that has been written as a "template" for creating nagios plugins (https://exchange.nagios.org/directory/Plugins/*-Plugin-Development-Tools/Nagios-3A-3APlugin/details).

                        i guess i need some more dependencies because when i run perl Makefile.PL this is what it shows:

                        Warning: prerequisite Config::Tiny 0 not found.
Warning: prerequisite Math::Calc::Units 0 not found.
Warning: prerequisite Params::Validate 0 not found.
Writing Makefile for Nagios::Plugin
Writing MYMETA.yml and MYMETA.json

                        i'll take a look to your file and follow your instructions to check squid & squidguard status for my pfsense

                        Thank you for your attention

                        No Pain
                        No Gain

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                        • R
                          rct
                          last edited by

                          No problem! I hope it'll do the trick for you :)

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                          • R
                            rocaembole
                            last edited by

                            i've done all the configurations on pfsense side

                            now i'm on my Nagios Server and i don't know how to add this checks on my status monitor

                            here's my 'pfsense22.cg" file

                            
# A simple configuration file for monitoring the local host
# This can serve as an example for configuring other servers;
# Custom services specific to this host are added here, but services
# defined in nagios2-common_services.cfg may also apply.
# 

define host{
        use                     generic-host            ; Name of host template to use
        host_name               pfsense22
        alias                   virtualprana
        address                 10.0.0.22
        }

# Define a service to check the disk space of the root partition
# on the local machine.  Warning if < 20% free, critical if
# < 10% free space on partition.

define service{
        use                             generic-service         ; Name of service template to use
        host_name                       pfsense22
        service_description             Disk Space
        check_command                   check_all_disks!20%!10%
        }

# Define a service to check the number of currently logged in
# users on the local machine.  Warning if > 20 users, critical
# if > 50 users.

define service{
        use                             generic-service         ; Name of service template to use
        host_name                       pfsense22
        service_description             Current Users
        check_command                   check_users!20!50
        }

# Define a service to check the number of currently running procs
# on the local machine.  Warning if > 250 processes, critical if
# > 400 processes.

define service{
        use                             generic-service         ; Name of service template to use
        host_name                       pfsense22
        service_description             Total Processes
		check_command                   check_procs!250!400
	}

# Define a service to check the load on the local machine. 

define service{
        use                             generic-service         ; Name of service template to use
        host_name                       pfsense22
        service_description             Current Load
		check_command                   check_load!5.0!4.0!3.0!10.0!6.0!4.0
        }

define service{
	use				generic-service
	host_name			pfsense22
	service_description		Current Load
		check_command		check_nrpe
}

# Define a service to check squid status

                            No Pain
                            No Gain

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                            • R
                              rct
                              last edited by

                              You can add the following to your file according you have setup a command named "check_squid_svc" in the NRPE package.

                              define service {
                                      use                            generic-service
                                      host_name                      pfsense22
                                      service_description            Squid service
                                      check_command                  check_nrpe!check_squid_svc
                              }

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                              • R
                                rocaembole
                                last edited by

                                thanks!

                                it shows me an UNKNOWN state

                                details:

                                
Current Status:	
  UNKNOWN  
 (for 0d 0h 25m 45s)
Status Information:	(No output returned from plugin)
NRPE Plugin for Nagios
Copyright (c) 1999-2008 Ethan Galstad (nagios@nagios.org)
Version: 2.15
Last Modified: 09-06-2013
License: GPL v2 with exemptions (-l for more info)
SSL/TLS Available: Anonymous DH Mode, OpenSSL 0.9.6 or higher required
\nUsage: check_nrpe -H <host>[ -b <bindaddr>] [-4] [-6] [-n] [-u] [-p <port>] [-t <timeout>] [-c <command></command>] [-a <arglist...>]
\nOptions:
-h = Print this short help.
-l = Print licensing information.
-n = Do no use SSL
-u = Make socket timeouts return an UNKNOWN state instead of CRITICAL
 <host>= The address of the host running the NRPE daemon
 <bindaddr>= bind to local address
-4 = user ipv4 only
-6 = user ipv6 only
[port] = The port on which the daemon is running (default=5666)
[timeout] = Number of seconds before connection times out (default=10)
[command] = The name of the command that the remote daemon should run
[arglist] = Optional arguments that should be passed to the command. Multiple
arguments should be separated by a space. If provided, this must be
the last option supplied on the command line.
\nNote:
This plugin requires that you have the NRPE daemon running on the remote host.
You must also have configured the daemon to associate a specific plugin command
with the [command] option you are specifying here. Upon receipt of the
[command] argument, the NRPE daemon will run the appropriate plugin command and
send the plugin output and return code back to *this* plugin. This allows you
to execute plugins on remote hosts and 'fake' the results to make Nagios think
the plugin is being run locally.
\n
Performance Data:	
Current Attempt:	4/4  (HARD state)
Last Check Time:	2015-06-18 12:50:08
Check Type:	ACTIVE
Check Latency / Duration:	0.085 / 0.005 seconds
Next Scheduled Check:  	2015-06-18 12:55:08
Last State Change:	2015-06-18 12:27:08
Last Notification:	2015-06-18 12:30:13 (notification 1)
Is This Service Flapping?	
  NO  
 (5.72% state change)
In Scheduled Downtime?	
  NO  
Last Update:	2015-06-18 12:52:53  ( 0d 0h 0m 0s ago)
Active Checks:	
  ENABLED  
Passive Checks:	
  ENABLED  
Obsessing:	
  ENABLED  
Notifications:	
  ENABLED  
Event Handler:	
  ENABLED  
Flap Detection:	
  ENABLED</bindaddr></host></arglist...></timeout></port></bindaddr></host>

                                No Pain
                                No Gain

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                                • R
                                  rocaembole
                                  last edited by

                                  NOW IS WORKING

                                  TY V M

                                  I'll nat some ports from some clients now.

                                  Thanks for all, again

                                  No Pain
                                  No Gain

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                                  • R
                                    rct
                                    last edited by

                                    Ok glad it works for you  :)

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                                    • Y
                                      ymolinet
                                      last edited by

                                      Hi,

                                      I'm trying to use your script on my pfsense 2.2.6.
                                      In shell, it's working.
                                      in nrpe, my remote server give me : Could not read output.
                                      Another check on the pfsense using nrpe (check_load, …) are working as fine.

                                      Any suggestions to fix this issue ?

                                      Thanks,
                                      Yannick

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                                      • R
                                        rct
                                        last edited by

                                        No sorry I've had the same problem when I have upgraded my pfSense and I haven't found a way to resolve this issue. :(

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                                        • Y
                                          ymolinet
                                          last edited by

                                          a short test with a bash script works as fine.
                                          so it seems that the nagios account use by nrpe don't have rights to execute the php interpreter (/usr/local/bin/php).

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                                          • R
                                            rct
                                            last edited by

                                            I agree it seems to be a security constraint somewhere but I don't know Freebsd and I haven't found why…

                                            If you try to launch
                                            su -m nagios -c "/usr/pbi/nrpe-amd64/libexec/nagios/check_pfsvc squid"
                                            it will work.

                                            But if you launch it throught the nrpe daemon it won't work.
                                            If edit the file to write dumb content (echo 'ok'; exit(0);) it will work.

                                            From my tests it's the call to '/usr/local/sbin/pfSsh.php' that is blocked.

                                            I've tried to launch /usr/local/sbin/pfSsh.php via a shell script configured as a nrpe command and it returns the error code 127 (http://tldp.org/LDP/abs/html/exitcodes.html ?).

                                            I don't know how to debug further...

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