install nagios 3.5 in ubuntu 12

• Prerequirement

  105  apt-get install apache2 libapache2-mod-php5 build-essential
  106  apt-get install libgd2-xpm-dev
  107  /usr/sbin/useradd -m -s /bin/bash nagios
  108  passwd nagios
  109  /usr/sbin/groupadd nagcmd
  110  /usr/sbin/usermod -a -G nagcmd nagios
  111  /usr/sbin/usermod -a -G nagcmd www-data

• Download Nagios

  114  mkdir download
  115  cd download/
  116  wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.5.0.tar.gz
  117  wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gz

• Install Nagios

  118  tar xvf nagios-3.5.0.tar.gz
  119  cd nagios/
  120  ./configure --with-command-group=nagcmd

=================================================================
General Options:
 -------------------------
        Nagios executable:  nagios
        Nagios user/group:  nagios,nagios
       Command user/group:  nagios,nagcmd
            Embedded Perl:  no
             Event Broker:  yes
        Install ${prefix}:  /usr/local/nagios
                Lock file:  ${prefix}/var/nagios.lock
   Check result directory:  ${prefix}/var/spool/checkresults
           Init directory:  /etc/init.d
  Apache conf.d directory:  /etc/apache2/conf.d
             Mail program:  /bin/mail
                  Host OS:  linux-gnu

 Web Interface Options:
 ------------------------
                 HTML URL:  http://localhost/nagios/
                  CGI URL:  http://localhost/nagios/cgi-bin/
 Traceroute (used by WAP):

• Install latest ssl library

check which version is avaiable
apt-cache search libssl | grep SSL
libssl-dev - SSL development libraries, header files and documentation
libssl-doc - SSL development documentation documentation
libssl1.0.0 - SSL shared libraries
libssl-ocaml - OCaml bindings for OpenSSL (runtime)
libssl-ocaml-dev - OCaml bindings for OpenSSL
libssl0.9.8 - SSL shared libraries
libsslcommon2 - enterprise messaging system - common SSL libraries
libsslcommon2-dev - enterprise messaging system - common SSL development file

 Install SSL library
 apt-get install libssl1.0.0 libssl-dev

• Install Nagios plugin

  133  tar xvf nagios-plugins-1.4.16.tar.gz
  134  cd nagios-plugins-1.4.16/
  135  ./configure --with-nagios-user=nagios --with-nagios-group=nagios
  146  make
  147  make install

• Start Nagios

Configure Nagios to automatically start when the system boots.

ln -s /etc/init.d/nagios /etc/rcS.d/S99nagios

Verify the sample Nagios configuration files.

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

If there are no errors, start Nagios.

/etc/init.d/nagios start