Nagios 4.0.1 Released – Install on RHEL/CentOS 6.x/5.x and Fedora 19/18/17

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Tarunika Shrivastava

I am a linux server admin and love to play with Linux and all other distributions of it. I am working as System Engineer with a Web Hosting Company.

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243 Responses

  1. Alexander Kamwi says:

    Well this is how things ought to be simple and straight forward, awesome I followed all the steps and my nagios is working just fine. Thank you!!

  2. Shashank Singh says:

    Simple and awesome. followed all steps and configured without any issue.
    Thanks for making it so simple yet useful.

  3. JUAN says:

    Had the same problem Internal Server Error, issue the following command to fix it.

    # chcon httpd_sys_content_t -R -t /usr/local/nagios
  4. sameer says:

    I just followed the above mentioned steps and got the …nagios web console. Thanks alot for making it so simple.

  5. bhimraya says:

    Im just follow your instructions
    unable to run from http://localhost/nagios
    You don’t have permission to access /nagios/ on this server.

    • Ravi Saive says:

      Disable Selinux or set correct selinux rules on nagios..just go through the comments you will find solution for this error..

  6. Jose says:

    Hi there! Im a complete ignorant about Linux, Im just follow instructions xD.
    But in step “Configure Nagios Core” I have troubles with the ./configure command, its says “no such file or directory”. And I dont know how to use it.
    Can you helpme please!

  7. Nikola says:


    I installed Nagios and it is working fine on my local virtual machine but when I tried to install it on my server I have problems because it has to go over https and not http. Can you help me how to set it up?

    Thank you.

  8. Baha says:

    Hi, Thanks for the tutorial.
    I have followed all the instructions and cant login to Nagios Web Interface
    I didnt have any problem installing the nagios or configuring,
    Only problem I am having while entering user and password, the window is popping up again asking user and password.

  9. Jason says:

    I followed this guide and was able to get a working installation; however some how the check_snmp plugin is missing. I verified that net-snmp is in fact installed.

  10. Jason says:

    I followed this tutorial and I get the web interface on the system but when I click the hosts link on the left I get the following error in my browser:

    Internal Server Error

    The server encountered an internal error or misconfiguration and was unable to complete your request.

    Please contact the server administrator, root@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error.

    More information about this error may be available in the server error log.

    I did see this in the error_log of the httpd logs

    (13)Permission denied: exec of ‘/usr/local/nagios/sbin/status.cgi’

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