"Travis H." <[EMAIL PROTECTED]> writes:

> The TTL is controlled by the authoritative name server, though.  And
> what about dynamic DNS?

I wouldn't want to go there. The domain name system is fairly good at
what it was designed to do, unfortunately firewall configs did not enter
into the equation at the time.

> That is a good idea.  I also have been thinking of equipping
> dfd_keeper with a periodic refreshing of rules (which would force
> periodic lookups to catch changes in dynamic DNS hosts).  

This would still be vulnerable to failure in name resolution unless
handled properly.  Done right it sounds rather attractive though.

-- 
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
http://www.blug.linux.no/rfc1149/ http://www.datadok.no/ http://www.nuug.no/
"First, we kill all the spammers" The Usenet Bard, "Twice-forwarded tales"
20:11:56 delilah spamd[26905]: 146.151.48.74: disconnected after 36099 seconds.

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