Hello everybody, is their any complete documents with clear steps to install logstash, kibanan, elastic & nginx on centos. We are doing a POC but still not able to install the suite. Can any body point to the good document on this..
There are a tonne of great blog posts out there, DigitalOcean has some.
What exactly is your problem?
refer'd many blogs but has lot of confusions. Can you point to any link which has clear steps to install on centos 7
Again, what is your problem?
This is pretty clear https://www.digitalocean.com/community/tutorials/how-to-install-elasticsearch-logstash-and-kibana-4-on-centos-7
Kibana page is blank - heading that says "{{dashboard.current.title}}".
You're better off using KB4, KB3 will have no more releases done to it.
I have already kibana-3.1.2 installed, now how to change it to 4. any link which has steps can really help me...
Did you look at that link I posted earlier?
We're happy to help, but we aren't going to give you this on a silver platter, help us by helping yourself 
How To Install Elasticsearch, Logstash, and Kibana 4 on Windows???
How To Install Elasticsearch, Logstash, and Kibana 4 on Windows???
Please start a new topic for new questions. The original question was about CentOS and you're asking about Windows.