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Old 06-12-2008, 01:03 PM
Dan Halbert
 
Default Avoid .local (WAS Reg. setting Domain name on Cento 5 pc)

Johnny Hughes wrote:


Take this name that I use: myth.home.local

$ hostname
myth.home.local
I would just like to note a mild warning here about using the ".local"
domain.


Systems that implement multicast DNS (mDNS) often reserve the ".local"
domain for mDNS lookups (whether this is good or bad has been in
dispute). Multicast DNS allows lookup of hosts on the local host by
querying all machines on the local network rather than by using a local
nameserver.


A box with mDNS turned on will look up ".local" names using mDNS instead
of the default nameserver. Both Apple and SuSE systems are configured to
have mdns turned on by default.


Before we knew this, we set up our intranet using a ".local" domain.
Later, when we added Macs and a lone SuSE system, we found they could
not do ".local" lookups in some circumstances. We ended up having to
fiddle with the settings on those machines. See for example:
http://docs.info.apple.com/article.html?artnum=107800.


In retrospect, using "lan" or ".site" or something else would have been
better. Since we have our own domain and run our own nameservers, we
could also have used something like intranet.ourdomain.com.


Dan
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