65 thoughts on “Nagios 4.x Install from Source on Ubuntu 12.04”

1. George October 31, 2013 at 3:26 pm

   Epic! Thanks for taking the time to post.

   Reply ↓
2. Bill Spencer December 5, 2013 at 9:56 pm

   On the step called “To include icons for a specific service, you will need this line in your service definition: ”
   How and where do you do this?
   Sorry, I’m a complete ubuntu/linux noob.

   Reply ↓
   1. Andrew Wells Post authorDecember 6, 2013 at 2:23 am

      That line goes in the service definition. You can add this to any service that passes performance data, like ping.

      See this page for more of a detailed explanation on what action_url can do.

      Reply ↓
3. Bill Spencer December 6, 2013 at 1:31 pm

   Which service definition? Can you give me an example of how you did it in your setup? For example…
   1. Open this with this
   2. Add this line here
   etc etc.
   Thanks…so far your notes are spot on.

   Reply ↓
   1. Andrew Wells Post authorDecember 6, 2013 at 4:55 pm

      Hi Bill – I updated the article with a couple example service definitions. See the section that starts with “Here are some example services you can change in the default configuration files.”

      Reply ↓
4. Bill Spencer December 6, 2013 at 6:54 pm

   Thanks Andrew that was a big help. I tried adding the action_url lines to Current Load, Current Users, and a few others and when I click on the graph, page loads but I have errors….for example, Current Load shows:
   Day, Week, Month, Year all show this in red….
   opening ‘/usr/local/nagiosgraph/var/rrd/localhost/Current%20Load___pl.rrd’: No such file or directory.

   Did I forget to add something from your instructions?
   I really appreciate all your help on this…if you lived in Central Florida, I’d be taking you to World of Beer!

   Reply ↓
   1. Andrew Wells Post authorDecember 6, 2013 at 7:22 pm

      That message means that the Round Robin Databases have not been created yet. That could be caused from a couple different reasons.

      – 1st reason can be simply time. The databases are not created until Nagios checks a service and saves the performance data. So once you install Nagiosgraph and restart Nagios, you need to wait for the service checks to run at least once for the graph to be initialized.
      – 2nd reason could be incorrect Nagios configuration. Take a peak at /usr/local/nagios/etc/nagios.cfg and /usr/local/nagios/etc/objects/commands.cfg to verify that the Nagiosgraph installer added lines to the end of those files.

      Reply ↓
5. Bill Spencer December 6, 2013 at 7:37 pm

   Lines are there, I’ll just wait and see what comes up…thanks a million Andrew.
   Do you have any other Nagios tutorials beyond this?

   Reply ↓
   1. Andrew Wells Post authorDecember 9, 2013 at 6:27 pm

      I do have more Nagios-specific articles that will be posted…eventually. 🙂 I’m glad this one is helpful.

      Reply ↓
6. Bill Spencer December 6, 2013 at 9:10 pm

   Hmm..still same problem…any ideas Andrew?

   Reply ↓
   1. Andrew Wells Post authorDecember 9, 2013 at 2:31 pm

      Ok, let’s try to follow the data through. First, confirm you have services passing performance data. From the Nagios services page, click on a service (like Ping or Current Load), and make sure there is data in the Performance Data Section.

      Next, check to see the file that sits between Nagios and Nagiosgraph.

      # watch "tail -n 30 /tmp/perfdata.log"

      What this command is doing is watching the contents of this file and automatically updating the screen. If you are only using the default config, there are not many checks happening. So you should only see a line or two appear, and then clear out over a few minutes. This file is a cache where the performance data is stored before being processed by Nagiosgraph.

      If this file doesn’t exist or is not ever showing any contents, check /usr/local/nagios/etc/nagios.cfg and verify Nagiosgraph updated the settings. You should see this at the end of the file:

      # begin nagiosgraph configuration
      # process nagios performance data using nagiosgraph
      process_performance_data=1
      service_perfdata_file=/tmp/perfdata.log
      service_perfdata_file_template=$LASTSERVICECHECK$||$HOSTNAME$||$SERVICEDESC$||$SERVICEOUTPUT$||$SERVICEPERFDATA$
      service_perfdata_file_mode=a
      service_perfdata_file_processing_interval=30
      service_perfdata_file_processing_command=process-service-perfdata-for-nagiosgraph
      # end nagiosgraph configuration
      

      If you are seeing the file size increase, and never clear out, service_perfdata_file_processing_command may not be functioning. Check /usr/local/nagios/etc/objects/commands.cfg and verify this is at the end of the file:

      # begin nagiosgraph configuration
      # command to process nagios performance data for nagiosgraph
      define command {
        command_name process-service-perfdata-for-nagiosgraph
        command_line /usr/local/nagiosgraph/bin/insert.pl
      }
      # end nagiosgraph configuration
      

      You can also try to run /usr/local/nagiosgraph/bin/insert.pl manually.

      Still not working? Check to see if the databases are being created:

      # ls -alh /usr/local/nagiosgraph/var/rrd

      You should see a directory for each host passing performance data.

      If you are still having trouble, please post the contents of /usr/local/nagios/etc/nagios.cfg and /usr/local/nagios/etc/objects/commands.cfg. Please paste those file into something like pastebin.com and post the links back here. Also, let me know if you have a different setup than what I used in this article, like a different version of Ubuntu.

      Let me know the results.

      Reply ↓
7. blitzkin December 23, 2013 at 8:48 pm

   hi andrew, thanks for this great tutorial.. i have a problem though with nagiosgraph:

   i get this error message when accessing showconfig.cgi
   cannot load ngshared.pm
   not found in any of these locations:
   /etc/nagiosgraph
   /etc/perl
   /usr/local/lib/perl/5.14.2
   /usr/local/share/perl/5.14.2
   /usr/lib/perl5
   /usr/share/perl5
   /usr/lib/perl/5.14
   /usr/share/perl/5.14
   /usr/local/lib/site_perl

   any help woule be much appreciated!

   Reply ↓
   1. Andrew Wells Post authorDecember 23, 2013 at 9:00 pm

      Something may not have installed correctly. Check out this command I ran on my test machine:

      [root]$ locate ngshared.pm
      /root/nagiosgraph-1.4.4/etc/ngshared.pm
      /usr/local/nagiosgraph/etc/ngshared.pm
      

      I see the mentioned file in the source folder and the installed location. See if you can find them there. If not, I would run the install.pl command again. Verify that you are specifying the --prefix.

      Reply ↓
      1. blitzkin December 23, 2013 at 9:50 pm

         did the install with the prefix still the same error with ngshared.pm

         although ngshared.pm is located on both places where you mentioned it:

         /root/nagiosgraph-1.4.4/etc/ngshared.pm
         /usr/local/nagiosgraph/etc/ngshared.pm

         Thanks!

         Reply ↓
         1. blitzkin December 23, 2013 at 9:52 pm

            also when i access http://localhost/nagiosgraph/cgi-bin/show.cgi

            it shows “Internal Server Error”

            Reply ↓
         2. Andrew Wells Post authorDecember 23, 2013 at 10:25 pm

            Ok, lets zoom out a little. Which OS are you attempting to install this on? And is this a fresh install?

            If you are getting server error pages, trigger that error again, and check the Apache log file for more details:

            [root]$ $ tail /var/log/apache2/error.log

            If that doesn’t turn up anything, view the file located at /usr/local/nagiosgraph/cgi/show.cgi, around line 11. See what directory is in the ‘use lib’ setting and make sure ngshared.pm is in that directory.

            Also as I’m writing this, I wonder if something like SELinux is getting in your way.

            Reply ↓
            1. blitzkin December 24, 2013 at 3:40 pm

               Andrew i will try the steps again on a new install since i’m just setting it up as a vm.. will let you know of any update, i guess too many tutorials i read messed things up.. happy holidays man!
8. ultract January 18, 2014 at 7:33 am

   Thx. This is a good post!

   Reply ↓
9. mate January 28, 2014 at 4:39 pm

   hey, thanks for your great guide!
   just one little thing: “~/nagios-4.0.1/sample-config/mrtg.cfg” doesn’t exist but i think you mean “~/nagios-4.0.1/sample-config/mrtg.cfg.in”

   😉

   Reply ↓
   1. Andrew Wells Post authorJanuary 28, 2014 at 5:43 pm

      The .in files are some sort of template. The config files are generated from this template after running this step:

      [root]$ cd ~/nagios-4.0.1
      [root]$ ./configure --with-command-group=nagcmd
      

      If I list that directory after that step, I see both files:

      [root]$ ls -alh ~/nagios/sample-config
      total 164K
      drwxrwxr-x  3 root root 4.0K Jan 11 21:03 .
      drwxrwxr-x 15 root root 4.0K Jan 11 21:03 ..
      -rw-------  1 root root  12K Jan 11 21:03 cgi.cfg
      -rw-rw-r--  1 root root  12K Aug 30 12:46 cgi.cfg.in
      -rw-rw-r--  1 root root   17 Aug 30 12:46 .gitignore
      -rw-------  1 root root 1010 Jan 11 21:03 httpd.conf
      -rw-rw-r--  1 root root  932 Aug 30 12:46 httpd.conf.in
      -rw-------  1 root root 7.0K Jan 11 21:03 mrtg.cfg
      -rw-rw-r--  1 root root 6.8K Aug 30 12:46 mrtg.cfg.in
      -rw-------  1 root root  44K Jan 11 21:03 nagios.cfg
      -rw-rw-r--  1 root root  44K Aug 30 12:46 nagios.cfg.in
      -rw-rw-r--  1 root root  983 Aug 30 12:46 README
      -rw-------  1 root root 1.4K Jan 11 21:03 resource.cfg
      -rw-rw-r--  1 root root 1.3K Aug 30 12:46 resource.cfg.in
      drwxrwxr-x  2 root root 4.0K Jan 11 21:03 template-object
      

      Look at the contents or both mrtg.cfg and mrtg.cfg.in. The files ending with .in shows variables like @localstatedir@, and the equivalent config file shows the value after the configure run.

      Reply ↓
10. Chris February 17, 2014 at 12:49 am

    Thank you for the tutorial. It was very informative and thorough, it was also nice that you went further by doing some of your own tweaks. I have a request though, think you can do a tutorial for nconf\NRDP\NSClient++

    -thanks again

    Reply ↓
11. Chris February 21, 2014 at 10:20 pm

    I have been following other tutorials on line and yours is the best by far, THANKS!
    I have one issue and I’m hoping you can help me with. this error is coming up:
    check_mrtgtraf: Unable to open MRTG log file
    This is from the status information for monitoring port bandwidth.
    I am running an Ubuntu VM with nagios 4.02.
    I have read other threads about this issue and some are saying to install MRTG again but it is working fine.
    Anything that can explain this will help.
    Thanks

    Reply ↓
    1. Andrew Wells Post authorFebruary 21, 2014 at 11:02 pm

       Hi Chris – can you paste in the command that you have for check_mrtgtraf?

       Reply ↓
       1. Chris February 24, 2014 at 5:30 pm

          I might as well put all the status errors on this post, I checked and the IP is correct, the snmp community string is also correct but I cant seem to get anything to come up.
          Does the model of the equipment I’m monitoring matter?

          Status for Port 1 Link Status – Unknown:
          # Monitor Port 1 status via SNMP
          define service{
          use generic-service ; Inherit values from a template
          host_name Core-Wh-SW
          service_description Port 1 Link Status
          check_command check_snmp!-C snmp_community -o ifOperStatus.1 -r 1 -m RFC1213-MIB
          }

          Status for Port 1 Bandwidth Usage – Unknown:
          # Monitor bandwidth via MRTG logs
          define service{
          use generic-service ; Inherit values from a template
          host_name Core-Wh-SW
          service_description Port 1 Bandwidth Usage
          check_command check_local_mrtgtraf!/var/lib/mrtg/192.168.200.2_1.log!AVG!1000000,1000000!5000000,5000000!10
          }
          Status for Uptime – Critical:
          # Monitor uptime via SNMP
          define service{
          use generic-service ; Inherit values from a template
          host_name Core-Wh-SW
          service_description Uptime
          check_command check_snmp!-C snmp_community -o sysUpTime.0
          action_url /nagiosgraph/cgi-bin/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&geom=1000×200′ onMouseOver=’showGraphPopup(this)’ onMouseOut=’hideGraphPopup()’ rel=’/nagiosgraph/cgi-bin/showgraph.cgi?host=$HOSTNAME$&service=$SERVICEDESC$
          }

          Thanks for taking a look.

          Reply ↓
          1. Chris February 24, 2014 at 5:35 pm

             I see the check_command is pointing to /var/lib/mrtg/192.168.200.2_1.log
             In this directory there is no 192.168.200.2_1.log?

             Reply ↓
             1. Andrew Wells Post authorFebruary 24, 2014 at 5:52 pm

                Yup, first I would make sure that file path to the log file is correct.

                Then, see exactly what command is being ran for “check_local_mrtgtraf”. From the Nagios web interface, left side, click on “Configuration” at the bottom of the list. Select “Commands” and hit Continue. See what the shell command is for check_local_mrtgtraf and replicate that in an SSH session. You might be able to get some more insight as to the error output that way.
12. Chris February 24, 2014 at 6:02 pm

    check_local_mrtgtraf = $USER1$/check_mrtgtraf -F $ARG1$ -a $ARG2$ -w $ARG3$ -c $ARG4$ -e $ARG5$

    I put in the command and received this error:
    bash: $/check_mrtgtraf: No such file or directory

    Reply ↓
    1. Andrew Wells Post authorFebruary 24, 2014 at 6:37 pm

       $USER1$ points to the plugins directory. To see the path, refer to the file /usr/local/nagios/etc/resource.cfg where $USER1$ is defined. Most likely though, it points to /usr/local/nagios/libexec

       So the fill path to the executable is /usr/local/nagios/libexec/check_mrtgtraf but you have arguments. So based on your previous posts, it would look something like this:

       /usr/local/nagios/libexec/check_mrtgtraf -F /var/lib/mrtg/192.168.200.2_1.log -a AVG -w 1000000,1000000 -c 5000000,5000000 -e 10

       So run that command on your machine, and see if you still get the “file not found” message. If you do, tell me the output of this:

       tail /var/lib/mrtg/192.168.200.2_1.log

       Reply ↓
       1. Chris February 24, 2014 at 9:07 pm

          This is the output of the commands:
          lab@ubuntu:/$ sudo /usr/local/nagios/libexec/check_mrtgtraf -F /var/lib/mrtg/192.168.200.2_1.log -a AVG -w 1000000,1000000 -c 5000000,5000000 -e 10
          check_mrtgtraf: Unable to open MRTG log file
          Usage check_mrtgtraf -F -a -w
          -c [-e expire_minutes]

          lab@ubuntu:/$ sudo tail /var/lib/mrtg/192.168.200.2_1.log tail: cannot open `/var/lib/mrtg/192.168.200.2_1.log’ for reading: No such file or directory

          Reply ↓
          1. Andrew Wells Post authorFebruary 25, 2014 at 3:47 am

             Yup, that log file you are referring to doesn’t exist. How did you get the path of that log file? If you followed a procedure publicly available, can you link to it?

             Reply ↓
             1. Chris February 25, 2014 at 9:41 pm

                Are you asking about the procedure I used to install Nagios? I used your set up, which took me a lot farther than other sites.
                The path I got from the Nagios web interface, left side I clicked on “Configuration”. Selected “Commands” and hit Continue. I found the command here under check_local_mrtgtraf.
             2. Andrew Wells Post authorFebruary 26, 2014 at 12:26 am

                I haven’t used this plugin before, but it seems that check_local_mrtgtraf scans existing log files. Something else has to put them there. MRTG in this article is configured to monitor the Nagios installation only, not switches. There has to be some other setup done by you to enable MRTG to query your switches. This article I found describes creating a configuration file using cfgmaker, and then adding that to the crontab to poll the switch and write that data to a log file. Is this what you are looking for?
13. Chris February 26, 2014 at 12:33 am

    Yes, I will give this a try.
    Thanks for all of your help.

    Reply ↓
14. Chuck February 26, 2014 at 8:43 pm

    Great post thanks!
    I am also a bit green and am wondering how to move forward from here. We have a bunch of stores that connect to our main office over IPSEC. We want to mainly monitor the router for any downtime at each store. Eg Router A 10.10.1.1, Router B 10.10.2.1, Router C 10.10.3.1 etc.

    We just want to see if the connection goes down for any reason and then track history etc, so maybe a simple Ping? How do I add these to monitor.

    Thanks,

    Reply ↓
    1. Andrew Wells Post authorFebruary 26, 2014 at 10:13 pm

       I would do something like this: http://pastebin.com/5Xz0EpQw

       Create a hostgroup, assign a Ping service to that hostgroup, and then create a host for each router. That way you could have graphs with ping times and outages should they ever happen.

       Reply ↓
       1. Chuck March 3, 2014 at 9:12 pm

          Perfect, thanks; everything is now up an running. I am trying to find a way to monitor both the Internal IP’s and External IP’s. Therefore showing if the IPSEC is going down or the Internet as a whole. Wondering if they can be monitored together or do I need to make separate files for the Internal to the External addresses.

          I came across this: http://exchange.nagios.org/directory/Plugins/Others/check_multiaddr/details. Great for monitoring Multiple Addresses, but only seems to check one at a time and doesnt really show you which one is down.

          Reply ↓
15. Abdul Wajid February 27, 2014 at 8:45 am

    Newbie alert !
    [root]$ vim ~/.bash_aliases

    Cannot create an alias. Please elaborate the process to create the alis in Ubuntu Server 12.0.1.
    Thank YOu

    Reply ↓
16. Abdul Wajid February 27, 2014 at 11:33 am

    I figured out the above reported problem but after configuring the nagiosgraph, when i access it through the webconsole i see below error.
    No data in rrd directory /usr/local/nagiosgraph/var/rrd

    Please help

    Regards
    Abdul Wajid

    Reply ↓
    1. Andrew Wells Post authorFebruary 27, 2014 at 2:46 pm

       The graph data doesn’t build until the service checks run a couple times. If you still don’t see anything after 20 minutes, double check to make sure the install parameters were entered correctly for the Nagiosgraph installation. Refer to my demo video about 14 minutes in to see what I’m talking about.

       A good way to test that would be to take a peak at your Nagios configuration.

       [root]$ tail /usr/local/nagios/etc/nagios.cfg 
       # begin nagiosgraph configuration
       # process nagios performance data using nagiosgraph
       process_performance_data=1
       service_perfdata_file=/tmp/perfdata.log
       service_perfdata_file_template=$LASTSERVICECHECK$||$HOSTNAME$||$SERVICEDESC$||$SERVICEOUTPUT$||$SERVICEPERFDATA$
       service_perfdata_file_mode=a
       service_perfdata_file_processing_interval=30
       service_perfdata_file_processing_command=process-service-perfdata-for-nagiosgraph
       # end nagiosgraph configuration
       

       If you don’t see the nagiosgraph configuration at the end of that file, then something went wrong in the installation.

       Reply ↓
       1. Abdul Wajid February 27, 2014 at 3:18 pm

          Thank you very much. I was able to see the graph but mouseover function is not happening for me.
          Any idea?

          Reply ↓
          1. Andrew Wells Post authorFebruary 27, 2014 at 3:35 pm

             Make sure you created the file /usr/local/nagios/share/ssi/common-header.ssi with content mentioned in the article. Also make sure you have the appropriate action_url in the service definitions where you want the graph icons.

             Reply ↓
17. Abdul Wajid March 2, 2014 at 12:30 pm

    I have a problem while running below command to get the information through snmp. any idea how can i fix ?

    root@nagios:/usr/local/nagios/libexec# ./check_snmp -H 192.168.30.1 -C gpcc -o sysUpTimeInstance
    CRITICAL – Plugin timed out while executing system call

    Thank You

    Reply ↓
    1. Andrew Wells Post authorMarch 2, 2014 at 3:06 pm

       Are you seeing that timeout message in Nagios or when running the command directly on the command line?

       Nagios has a few settings that control how long certain commands (including checks) can run. These settings are located in /usr/local/nagios/etc/nagios.conf.

       This would be your area of interest:

       # TIMEOUT VALUES
       # These options control how much time Nagios will allow various
       # types of commands to execute before killing them off.  Options
       # are available for controlling maximum time allotted for
       # service checks, host checks, event handlers, notifications, the
       # ocsp command, and performance data commands.  All values are in
       # seconds.
       
       service_check_timeout=60
       host_check_timeout=30
       event_handler_timeout=30
       notification_timeout=30
       ocsp_timeout=5
       perfdata_timeout=5
       

       Reply ↓
       1. Abdul Wajid March 2, 2014 at 3:11 pm

          I tried both the ways. From Nagios as well as from the CLI. Same error messag came up on the Web Console as well.

          Thanks

          Reply ↓
          1. Andrew Wells Post authorMarch 2, 2014 at 3:33 pm

             Interesting. So it sounds like it’s the actual plugin that’s timing out then and not the Nagios backend.

             I ran this to see the help information on the plugin you are using:

             [user]$ /usr/local/nagios/libexec/check_snmp -h

             I saw that there is a timeout value for this plugin:

              -t, --timeout=INTEGER
                 Seconds before connection times out (default: 10)
             

             Try running the command again specifying a larger timeout value. I modified your earlier command, only adding -t 60 at the end:

             root@nagios:/usr/local/nagios/libexec# ./check_snmp -H 192.168.30.1 -C gpcc -o sysUpTimeInstance -t 60
             

             Remember that if we increase this timeout to be longer than the Nagios service check timeout, you may still need to change that as well.

             Reply ↓
             1. Abdul Wajid March 2, 2014 at 3:41 pm

                Same error :

                root@ubuntu:/usr/local/nagios/libexec# ./check_snmp -H 192.168.30.1 -C gpcc -o sysUpTimeInstance -t 60
                CRITICAL – Plugin timed out while executing system call

                Thanks
             2. Andrew Wells Post authorMarch 2, 2014 at 8:16 pm

                How much time does it take for you to see that message? Does it wait the 60 seconds before it times out?
18. Abdul Wajid March 3, 2014 at 7:09 am

    Hi,

    Same Error comes up. It takes round three to four minutes if i user -t switch with value 60. Another thing, if i put the wrong hostname then also it pops the same error message.

    Any Clue?

    Thanks

    Reply ↓
    1. Andrew Wells Post authorMarch 3, 2014 at 2:43 pm

       I would double-check that you have the SNMP settings correct. My best suggestion is to check the SNMP parameters and make sure that SNMP is correctly configured on the device you are querying (whatever is at 192.168.30.1).

       Try to remove some variables from the problem and test only the SNMP service on your network device. Instead of using Nagios (for now), try a simple SNMP browser instead, and once you are sure SNMP is working, try it with Nagios again.

       Reply ↓
19. Anilesh Thakur April 12, 2014 at 12:03 pm

    Hi,
    Recently I installed the nagios 4.0.5 core edition but i am unble to configure email notification, Plz explain in breif how to configure email notification in nagios4 on ununtu 12.04.

    Reply ↓
20. Indrajeet April 23, 2014 at 9:09 am

    Not working!!!!!!!!!!!!

    Reply ↓
    1. Andrew Wells Post authorApril 23, 2014 at 1:50 pm

       Ok, try it now.

       Reply ↓
21. Tobias May 14, 2014 at 2:57 pm

    [root]$ /usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/conf.d/nagios.conf

    This looks wrong in your updated 4.0.6 installation (directory does not exist – just a typo) replace it with:

    [root]$ /usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/conf-available/nagios.conf

    Reply ↓
    1. Andrew Wells Post authorMay 14, 2014 at 3:02 pm

       I believe that is an Ubuntu 12.04 / 14.04 difference. Apache was upgraded to 2.4.7 in Ubuntu 14.04, and that changed some things like the conf directories. I will rewrite this article for Ubuntu 14.04 soon.

       Reply ↓
       1. Tobias May 15, 2014 at 6:31 am

          Not sure. You install the file at /etc/apache2/conf.d but make a link from /etc/apache2/conf-available
          This does not match. But i admit I’m not an expert when it comes to Linux. However your guide helped me a lot to install it to 12.04. Now I#m on my way to get it running on 14.04.
          Thanks for your work 😉

          Reply ↓
          1. Andrew Wells Post authorMay 16, 2014 at 2:43 pm

             Oops, you are correct! Thanks for the note. I was attempting to modify this article to be compatible with both Ubuntu 12.04 and 14.04 before I realized the major changes in Apache. I will update that section to /etc/apache2/conf.d. Thanks!

             Reply ↓
22. sergio May 15, 2014 at 3:39 pm

    As you add more hosts to nagios?
    what is the code and where you add?

    Reply ↓
23. Gideon June 2, 2014 at 2:30 pm

    Hi Andrew, thank you so much for doing this step-by-step tutorial.

    I have a little problem where after i run the “make install-webconf” i get the error message, I proceed by using the solution you gave (/usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/conf.d/nagios.conf).

    But neither the “install” directory under /usr/bin/ or the “apache2/conf.d” under /etc/ exists.

    Ps. this is on a newly installed VM

    Reply ↓
    1. Andrew Wells Post authorJune 2, 2014 at 2:36 pm

       What version of Ubuntu are you using? Ubuntu 14.04 has Apache2 config in /etc/apache2/conf-available. If that is the case, follow this article instead for Ubuntu 14.04.

       With regards to /usr/bin/install not being available, you may have to install the build-essential package.

       Reply ↓
       1. Gideon June 2, 2014 at 2:56 pm

          Thank you for the quick respons Andrew

          Reply ↓
    2. Gideon June 2, 2014 at 2:54 pm

       I forgot to mention that its a 14.04 machine and i changed “…/apache2/conf.d…” to “…/apache2/conf-available…” in accordance to Tobias comment on the 14th of May.

       Reply ↓
       1. Andrew Wells Post authorJune 2, 2014 at 4:09 pm

          This article is targeted to Ubuntu 12.04.

          If you are on Ubuntu 14.04, please refer to this guide: http://wellsie.net/p/512/

          Reply ↓
24. amal July 11, 2014 at 9:55 am

    good morning
    please I need your help : to install some prerequisites before installing nagios plugins
    I used this cmd ” apt-get install libnet-snmp-perl libperl5.14 libpq5 libradius1 libsensors4 libsnmp-base libsnmp15 libtalloc2 libtdb1 libwbclient0 samba-common samba-common-bin smbclient snmp whois libmysqlclient15-dev libssl-dev” the result was: ” E:unable to locate package libdb1
    E:unable to locate package libclient0
    E:unable ti locate package smbclients”

    Reply ↓
25. Johnas July 23, 2014 at 6:45 am

    Hi Andrew!
    Excellent Tutorial! Everything is clear and well explained. I just wanted to add the fact the new Nagios 4.0.7 fixes the problem with install webconf and the error indicated is fixed so needless to replace the script. I had a question for you though. I need some help with a script to monitor game servers with metrics such as number of players and most importantly settting a threshold when a player wins a huge amount. You can get to me back through my email.
    Regards

    Reply ↓
26. Nour January 13, 2016 at 11:05 am

    Hi there,

    i ám ruuning to some problems trying to get nagiosgraph working :

    root@kis13:/home/kis/nagiosgraph-1.5.2# ./install.pl –check-prereq
    checking required PERL modules
    Carp…1.29
    CGI…3.64
    Data::Dumper…2.145
    Digest::MD5…2.52
    File::Basename…2.84
    File::Find…1.23
    MIME::Base64…3.13
    POSIX…1.32
    RRDs…1.4007
    Time::HiRes…1.9725
    checking optional PERL modules
    GD…2.46
    Nagios::Config… ***FAIL***
    checking nagios installation
    found nagios exectuable at /usr/local/nagios/bin/nagios
    found nagios init script at /etc/init.d/nagios
    checking web server installation
    found apache executable at /usr/sbin/apache2
    found apache init script at /etc/init.d/apache2

    please your help .

    I tried to ingnore this message but then after the installation when running CPAN for the first time

    I get :

    Can’t call method “http” on unblessed reference at /usr/share/perl/5.18/CPAN/FirstTime.pm line 1868.

    Reply ↓