1) Install the required packages in preparation to install NRPE. [root@MACHINE1 ~]# yum install -y gcc glibc glibc-common gd gd-devel make net-snmp openssl-devel 2) Add nagios username and update the password. [root@MACHINE1 ~]# useradd nagios [root@MACHINE1 ~]# passwd nagios Changing password for user nagios. New password: mypassword Retype new password: mypassword passwd: all authentication tokens…