Ejabberd webadmin access timeout - xmpp

Question

I just installed ejabberd on a remote server.
Let's say remote server's ip is 123.123.123.123, and its internal ip address is 10.0.0.10.
Then, I edited:
/etc/ejabberd/ejabberd.cfg
%% ... more codes
%% Options which are set by Debconf and managed by ucf
%% Admin user
{acl, admin, {user, "admin", "myexample.com"}}.
%% Hostname
{hosts, ["myexample.com"]}.
%% ... more codes
{5280, ejabberd_http, [
%%{request_handlers,
%% [
%% {["pub", "archive"], mod_http_fileserver}
%% ]},
%%captcha,
http_bind,
http_poll,
web_admin
]}
%% ... more codes
and, added admin as admin user by executing the following in the ssh at the server 123.123.123.123:
root:# ejabberdctl register admin myexample.com adminpassword
root:# service ejabberd restart
THINGS NOT WORKING:
However, the admin console myexample.com:5280/admin is unreachable (timeout). I've also tried 123.123.123.123:5280/admin, but failed.
THINGS WORKING:
However, from server's console, if I access 10.0.0.10:5280/admin, it works. Also, I can confirm the user admin is registered by executing the following:
ejabberdctl registered_users
QUESTION:
How do I make the access the webadmin (or more importantly, accessing any ports from its external ip or domain) work?

Answer 1

This may be just a connectivity problem.
This is what I'd do:
'sudo netstat -nap | grep 5280' (or equivalent) to verify on which interfaces ejabberd is listening for webadmin
If it's listening on "all" (0.0.0.0) as I expect, then verify its reachability with something like 'telnet 123.123.123.123 5280'. If it can't connect, then check the server's firewall (e.g. 'sudo iptables -L -n -v').
You probably just need to "open" 123.123.123.123:5280 for the source host you're connecting from.