[Macpartners] Leopard firewall

[Patrick McNeal]

On Nov 28, 2007, at 11:33 AM, Allan Doyle wrote:

> I want to allow incoming SMTP traffic on port 25 on a Leopard machine
> (not Leopard Server). Googling and searching the Apple Discussions
> doesn't offer much help.
>
> One perhaps drastic solution is to shut off the firewall entirely and
> use ipfw. I'm happy to do that, but there must be a "Leopard" way...

 From what I understand, to use Leopard's GUI firewall, you have to  
specify which application has permission to open ports.  If you know  
what applications need to open port 25, you might try adding them to  
the "allow list."

As you suggested, reverting to ipfw should work.  I wasn't able to  
find any Apple documentation on it, but at least one blog claims that  
"ipfw supercede any rules defined by the new application firewall."[1]

Let the group know if you get it to work - I'm sure there are others  
that would be interested.

--Patrick

[1] http://tinyurl.com/2txmfy
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Patrick McNeal
Macintosh Platform Coordinator - Software Release Team
Client Support Services, Information Services and Technology
Massachusetts Institute of Technology
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Cambridge, MA 02139
+1 617 253-0196
mcneal at mit.edu