Unable to open remotely installed sonar on a browser

Question

I have installed sonar on a remote Linux cent OS server. I have configured the database on the same server. When I start the server, I don\'t see any errors in the logs and

Answer 1

My problem was, I had to allow port in iptables and not append(default) it but add it in front of rule "drop all", which negated everything after.

command:

iptables -I INPUT 1 -p tcp --dport 9000 -j ACCEPT

where 1 - defines at which(1st) position of iptable rules to add it