How to install Naemon on Ubuntu

Next step is to add Consol Labs repository to create the apt database by executing the following command.

root@linuxhelp1:~# gpg --keyserver keys.gnupg.net --recv-keys F8C1CA08A57B9ED7
gpg: keyring `/home/user1/.gnupg/secring.gpg'  created
gpg: keyring `/home/user1/.gnupg/pubring.gpg'  created
gpg: requesting key A57B9ED7 from hkp server keys.gnupg.net
gpg: /home/user1/.gnupg/trustdb.gpg: trustdb created
gpg: key A57B9ED7: public key " Sven Nierlein < sven.nierlein@consol.de> "  imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
root@linuxhelp1:~# gpg --armor --export F8C1CA08A57B9ED7 | apt-key add -
OK
root@linuxhelp1:~# echo " deb http://labs.consol.de/repo/stable/ubuntu $(lsb_release -cs) main"  >  /etc/apt/sources.list.d/labs-consol-stable.list

Now update the added repositories by using the apt-get update command.

root@linuxhelp1:~# apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Hit:2 http://in.archive.ubuntu.com/ubuntu xenial InRelease                   
Get:3 http://labs.consol.de/repo/stable/ubuntu xenial InRelease [26.4 kB]                               
Get:4 http://in.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]                                         
Get:5 http://labs.consol.de/repo/stable/ubuntu xenial/main amd64 Packages [7,084 B]                                           
Get:6 http://labs.consol.de/repo/stable/ubuntu xenial/main i386 Packages [6,256 B]                              
Get:7 http://labs.consol.de/repo/stable/ubuntu xenial/main Translation-en [32 B]             
Get:8 http://in.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]            
Fetched 346 kB in 2s (129 kB/s)   
Reading package lists... Done

To install Naemon application, execute the following command and press y to continue with the installation.

root@linuxhelp1:~# apt-get install naemon -y
Reading package lists... Done
Building dependency tree      
Reading state information... Done
The following additional packages will be installed:
  libdbi1 libnaemon libnet-snmp-perl libpq5 libsmbclient libthruk libtirpc1 libwbclient0 monitoring-plugins monitoring-plugins-basic monitoring-plugins-common
  monitoring-plugins-standard naemon-core naemon-livestatus naemon-thruk nagios-plugins python-crypto python-ldb python-samba python-tdb rpcbind samba-common samba-common-bin
  samba-libs smbclient snmp thruk thruk-base thruk-plugin-reporting
Suggested packages:
  libcrypt-des-perl icinga | icinga | nagios3 nagios-plugins-contrib fping qstat python-crypto-dbg python-crypto-doc heimdal-clients cifs-utils
.
.
.
Setting up monitoring-plugins (2.1.2-2ubuntu2) ...
Setting up nagios-plugins (2.1.2-2ubuntu2) ...
Setting up thruk-plugin-reporting (2.14) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (229-4ubuntu4) ...

Once the installation has been completed, Naemon will have default username and password as “ thrukadmin” . If the user wishes to change the password use the below command and change it to any password.

root@linuxhelp1:~# htpasswd /etc/thruk/htpasswd thrukadmin
New password:
Re-type new password:
Updating password for user thrukadmin

Restart the services for Naemon and apache2 by executing the following command.

root@linuxhelp1:~# systemctl restart naemon
root@linuxhelp1:~# systemctl restart apache2

Now open the web browser and run the link http://192.168.7.234/naemon. The login page of Naemon appears in the screen.

IP address should replaced with your IP address.