On 9 September 2011 08:54, Holger Glaess <gla...@glaessixs.de> wrote:
> hi
>
> i wrote a perl daemon to handle all these situations.
>
> he resolv the servername and add or delete the ip(s) to an spezific
> table.
>
> maybe it's time to work on a package for ports.
>
> holger

Maybe I'm terribly confused (so bear with me), but isn't the trouble
with these round-robin DNS CDN type of situations that most near any A
record resolution request is likely to return a different IP address
than before? So given that, how would updating your pf.conf (table)
with a given IP (even a few given IPs) do any good if you're not also
running a proxy server or DNS server?

I mean, wouldn't this just cause your Perl daemon to dutifully update
a table for, say, hostname.tld to IP w.x.y.z, only to have the next
client just moments later get a response of IP a.b.c.d from the remote
DNS server? Which at that point in time wouldn't be covered by your PF
table/rules at all?

Am I terribly confused? What am I missing?

regards,
--ropers

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