Upgrade to latest Nagios:

 

wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz
tar xzf nagios-3.2.3.tar.gz
cd nagios-3.2.3
./configure --with-command-group=nagcmd
make all
make install
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
/etc/init.d/nagios restart

 

Install theme (Arana Style):

 

cd /usr/local/nagios/share/
wget http://sourceforge.net/projects/arana-nagios/files/arana_style-1.0for-Nagios3x-ENG.zip/download
unzip arana_style-1.0for-Nagios3x-ENG.zip -d /usr/local/nagios/share/

 

Visit: https://yourwebaddress/nagios/arana_style/

 

 

Solve the ** PROBLEM Service Alert: localhost/Total Processes is WARNING **

nano usr/local/nagios/etc/objects/localhost.cfg
check_command check_local_procs!600!1200!RSZDT