Monitoring and logging are critical aspects of managing a CentOS 7 server. In this blog post, we will discuss setting up monitoring and logging solutions on CentOS 7, focusing on Nagios for monitoring and the ELK stack (Elasticsearch, Logstash, and Kibana) for logging. Monitoring with Nagios. Step 1: Install Nagios.Install Nagios from the EPEL repository:-# [sudo yum install epel-release] #...