enable DNS
Kenneth Porter
shiva at sewingwitch.com
Mon Jun 14 03:00:19 UTC 2004
--On Saturday, June 12, 2004 9:57 PM -0500 Jeff Vian <jvian10 at charter.net>
wrote:
> The default config for named points to the root nameservers, which means
> several queries for each host lookup, and lots of everhead. This slows
> down the access, and should not be used because of the distributed design
> of DNS.
There's no "default config" for named. If you don't create a named.conf, it
doesn't start.
The caching-nameserver package includes a configuration for that purpose.
The root servers are consulted for top-level domains, and the result is
cached. For common sites like Yahoo, MSN, and Google, you'll only query
those once every 172800 seconds (48 hours) (try "dig yahoo.com
@a.gtld-servers.net" to see the GTLD server's TTL). The number of bad
queries from misconfigured MS resolvers will dwarf the number of legitimate
queries from home caching servers.
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