HTTP and HTTPS port

Question

I have created a J2EE application that runs on GlassFish, HTTPS enabled. When the user typed http: //www.mydomain.com:8080/app, it will be redirected to https: //www.mydomain.com:8181/app/login.

However, when I see in some of the websites, it can actually redirected to something like https: //www.mydomain.com/app/login (without the HTTPS port 8181). Does this means that the server is running both HTTP and HTTPS on port 80?

How to configure this on GlassFish 3.1?

Answer 1

Non-root user should not use ports below 1024. It is better to do port forwarding from 80 to 8080 and 443 (https default) to 8181.

Execute this as root:

iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -t nat -A PREROUTING -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 8080
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -t nat -A PREROUTING -p tcp -m tcp --dport 443 -j REDIRECT --to-ports 8181

Need to make this permanent:

iptables-save -c > /etc/iptables.rules
iptables-restore < /etc/iptables.rules

and call during startup, vi /etc/network/if-pre-up.d/iptablesload

#!/bin/sh
iptables-restore < /etc/iptables.rules
exit 0

Answer 2

You can also configure it in the admin web gui under:
Configuration -> Server Config -> Network Config -> Network Listeners

Answer 3

Just to give out more details on alexblum's answer, when you login into the Glassfish Admin panel, go to Configurations -> server-config -> Network Listeners in Network Config.

1. Then click on New to add a new listener.
2. On the new listener page, just select 80 as your port and put 0.0.0.0 as your IP.
3. Select tcp as your Transport and use http-thread-pool as your Thread Pool
4. Save and Restart your Glassfish instance.

Thats what worked for me anyways.

Answer 4

The default port for HTTP is 80. When you access a URL: http://www.example.com/ you are connecting to www.example.com:80.

The default port for HTTPS is 443. When you access a URL: https://www.example.com/ you are connecting to www.example.com:443.

(See List of port numbers)

(See configuration of GlassFish to use other ports)