[ejabberd] limited firewall ports

Sander Devrieze s.devrieze at pandora.be
Thu Feb 22 15:59:59 MSK 2007

On 2/22/07, Safford, Brian <brian.safford at eds.com> wrote:
> I have a network setup where we have an 'inside' and 'outside' network
> with a port-filtering router inbetween.  The router does not filter any
> ports from inside to outside, but only allows 4 ports from outside to
> in, those being 22 (ssh), 25 (smtp) and 2 others.
> I've been trying to get a 2 node erlang setup working.  The connection
> from inside to outside works fine, which tells me that the handshake
> that takes place within the epmd's seems to be this:
> 1. inside epmd connects to outside epmd
> 2. outside epmd tells inside epmd to go away and come back on port XXXX
> 3. inside epmd then connects to port XXXX
> My question is this - is there any hope at all of getting the connection
> from outside to inside working?

You need to open port 5269 (TCP) in both directions. Also take a look
at the firewall section in the guide.

> And my comment is ... why didn't / doesn't epmd work like most other
> super-daemons?  Like sendmail and inetd ... or like wildfire and
> jabberd2 ... :-(

How do you mean? Do you want something like this?:

Mvg, Sander Devrieze.

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