Le Thu, 15 Feb 2007 18:45:33 +0200 Timo Sirainen tss@iki.fi écrit:
Or I could simply implement the blocking DNS resolving and you'll just have to make sure that your DNS servers are always responding and doing it fast enough not to cause problems.
Or another solution would be to implement the blocking DNS resolving AND a small cache. I think in most case there are only a few hostname in the proxy table. So the cache can be very small (less than 10 ?).
I guess this solution will not have a noticeable performance impact and can help in some (many ?) case. For example, I have a database with 1.5 millions entries. If I need to change the IP address of the destination POP3/IMAP servers, I have to update all the entries in my database. This large update can be saved by just updating the DNS entry...
-- Laurent Papier - 03 88 75 80 50 Admin. système - SdV Plurimedia - http://www.sdv.fr/