How to install Nagios on CentOS 6+

INSTALLATION OF NAGIOS-CORE 1. # yum install gd gd-devel httpd php gcc glibc glibc-common 2. # mkdir /root/nagios 3.  # cd /root/nagios 4. # wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.4.4.tar.gz     # wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gz 5. tar xvzf nagios-3.4.4.tar.gz 6. # cd nagios 7. # ./configure 8. make all, make install, make install-init, make install-commandmode, make install-config, make install-webconf 9. # … Read more

How to Troubleshoot Apache

1. If you are accessing the website by name , make sure it is resolving to an ip address by pinging the address.2. Check the status of apache is it running ?3. Check for any syntax error in apache configuration, if it is not running or is being restarted. [ httpd -t ]2. If the … Read more