[Samba] Multicast DNS required?

James lingpanda101 at gmail.com
Tue Sep 23 17:01:02 MDT 2014


     Thanks for the explanation and link. Will follow up and review. 
Looks like I may have trouble up ahead seeing as the powers that be want 
to introduce apple products into the domain.

On 9/23/2014 6:40 PM, Ryan Ashley wrote:
> mDNS is also called Bonjour on Apple systems (or Windows system with 
> iTunes and such installed). This is used for something unrelated to 
> actual DNS. In Linux we have "avahi" that does the same thing. 
> However, a domain ending in ".local" can have issues due to zeroconf 
> things (printers, wireless TV's, etc) use that domain. In other words, 
> never, ever end a domain name in ".local". I use ".lan" for my 
> domains. The issue is common on older domains that have been upgraded 
> dozens of times. Even I had issues with it for a while. I do not 
> believe Samba needs mDNS/zeroconf support though.
> You can read more on the matter at the link below. One of my clients 
> (I picked them up a few years ago) had a domain ending in ".local" and 
> they had begun using Apple devices (phones, iPads) and had all kinds 
> of issues due to the ".local" domain being used by them. Long story 
> short, I got lucky when their DC died and I got to do a new domain. 
> Now everything is as smooth as butter!
> http://en.wikipedia.org/wiki/.local
> On 09/23/2014 03:34 PM, James wrote:
>> Hello,
>>     I noticed all my DC's have port 5353 closed. I'm using the 
>> internal DNS and wasn't sure if multicast DNS must be enabled? I do 
>> not appear to be having any DNS issues. My only concern is with the 
>> wiki on Multicast DNS.
>> "By default, mDNS only and exclusively resolves host names ending 
>> with the |.local| top-level domain (TLD). This can cause problems if 
>> that domain includes hosts that do not implement mDNS but can be 
>> found via a conventional unicast DNS server. Resolving such conflicts 
>> requires network configuration changes that violate the zero 
>> configuration 
>> <http://en.wikipedia.org/wiki/Zero_configuration_networking> goal."
>> Given my domain is 'domain.local'. I wasn't sure if I should find out 
>> why the port is closed.  Thanks.


More information about the samba mailing list