How to Install Nagios 4.4.5 on RHEL/CentOS 8/7 and Fedora 30
yum install -y httpd httpd-tools php gcc glibc glibc-common gd gd-devel make net-snmp
useradd nagios
groupadd nagcmd
usermod -G nagcmd nagios
usermod -G nagcmd apache
mkdir /root/nagios
cd /root/nagios
wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.4.5.tar.gz
wget https://nagios-plugins.org/download/nagios-plugins-2.2.1.tar.gz — no-check-certificate
tar -xvf nagios-4.4.5.tar.gz && tar -xvf nagios-plugins-2.2.1.tar.gz
./configure — with-command-group=nagcmd
make install-init
make install-commandmode
make install-config
vi /usr/local/nagios/etc/objects/contacts.cfg
define contact {
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from gener$
alias Nagios Admin ; Full name of user
email nagios@xxx.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDR$
}
make install-webconf
htpasswd -s -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
cd /root/nagios
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
systemctl enable nagios
systemctl start httpd
systemctl enable httpd