Googling "install elk centos" gives me the following article as the first hit: How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on CentOS 7 | DigitalOcean
That said, the vast vast majority of what it takes to install this stack is unrelated to what operating system you're using so the shouldn't be any shortage in reading material.
Let's keep the IBM HTTP Server question in the thread you started for that purpose (below).