Installing
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2. Installing NagiosThen to Install Nagios 4 on CentOS 
 Simply run:sudo yum install nagios Authenticate with the User Admin Pass. 
 If Got “User is Not in Sudoers file” then see: How to Enable sudo.
 And to Search for Nagios Plugins:dnf search nagios | grep plugins The grep Command refine the output List showing only the Entries matching the Keyword. 
Contents
