Apache Tomcat not accessible from outside

We have Tomcat 6 installed and runnin开发者_StackOverflow社区g on an external facing server. It is set to listen to port 8082. I was able to see the default welcome page through localhost:8082. In addition, our network guy has already granted access for 8082 communications. However, this server is still not accessible from outside(with http://ip:8082).

Can someone please share some wisdom?

Thanks,

I'd start with something simple. Try telnetting to port 8082 on that IP address. If your Tomcat instance is up and running and listening on port 8082 but you can't telnet to it, then it's not getting through your firewall (regardless of what your network guy says).

Try changing Tomcat Connector port to 8080 or even 80 if possible. According to IANA http://www.iana.org/assignments/port-numbers HTTP alternative port is 8008, which I haven't tried before.

I would imagine if you are in a big corporation network, they may have a policy disabling outbound traffic to nonstandard ports. Only the network administrator knows best what is allowed and what isn't.

add port 8082 to TCP Rules in Security Groups .