Re: closing unwanted ports - and what is 1720/tcp filtered H.323/Q.931
Noah Meyerhans wrote:
> On Thu, Dec 15, 2005 at 06:46:02PM +0100, Florian Weimer wrote:
>> > It may be nothing. The fact that it showed up as filterd in the nmap
>> > output indicates that nmap didn't received a TCP RST packet back when
>> > it
>> > tried to contact that port. That may mean you have iptables configured
>> > to DROP packets to that port.
>> It could also mean that the the ISP filters 1720/TCP, in order to
>> prevent its customers from using VoIP.
> Good point. I suspect that's more likely.
will check with demon to see if this is the case for my connection