[BBLISA] outbound ports 8080/40443 firewall question

[Petro, Christopher]

Generally, personal firewalls allow outbound ports like that.  They care
more about unexpected applications trying to make outbound connections
than where outbound connections are made to.  However, many corporate
firewalls block uncommon outbound ports.  I can't get to port 8000
anywhere on the net from my desk at work, even though it's not that
unusual.  Something odd like 40443 won't have a chance at a lot of large
companies.

Put some extra hardware in front of those boxes and redirect the
connections from ports 80 and 443 if you can't use standard ports.

> -----Original Message-----
> From: bblisa-bounces at bblisa.org [mailto:bblisa-bounces at bblisa.org] On
> Behalf Of Eric J. Hansen
> Sent: Thursday, June 30, 2005 3:39 PM
> To: bblisa at bblisa.org
> Subject: [BBLISA] outbound ports 8080/40443 firewall question
> 
> We're looking at setting up a special website on alternate TCP ports
> such as 8080 and 40443 (i.e., http://www.mysite.com:8080).  This would
> be
> accessible by the Internet at large, and ideally as many end users as
> possible. My question to the group has to do with corporate and/or
> personal
> firewalls -- namely, do you think these (or similar non-standard)
> ports are
> likely to be blocked so end users can't browse to these URL's?
> 
> I looked through some docs about the Microsoft XP personal firewall as
> well as ZoneAlarm, but couldn't find a definitive list of what
> outbound
> TCP ports would be allowed (not cause an alert/pop-up.)
> 
> thanks
> Eric
> 
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