On 05-12-09 17:55, Glenn English wrote:
>>> All traffic to any service not offered publicly somewhere on my
>>> network is dropped without further comment at the border router.  You
>>> guys seem to be not doing that.

> Hmmm. Both responses I've received so far have said similar things: the
> NTP server is sitting on the 'Net.

My home server sits behind a NAT-router / ADSL modem, which only forwards
ports I want to be visible from the outside. Further, the server with NTP
blocks everything I don't use, both outside -> in (drop most ports silently)
and inside -> out (ICMP response). With inside -> out I differentiate server
-> out and LAN -> out.

> Working great so far, except for when I cut myself off from the universe.
> I do spend an awful lot of time futzing with it, though, and adding a new
> service is a significant production. OTOH I haven't been visited by that
> guy from China again...
> 
> And y'all are actually OK without all this? Interesting.

Just keep it up, if you feel so. To answer your initial question: nothing
wrong with protecting your server.

Arnold

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