[Freeipa-users] Correct syntax for round-robin DNS srv records

[Martin Basti]

On 22/07/14 00:13, Mark Heslin wrote:
> Hi All,
>
> I had some off-list exchanges with Petr Spacek on this but am still 
> trying to work out the correct syntax.
> I have 2 hosts:
>
>    - foo1.example.com
>    - foo2.example.com
>
> and would like to create a round-robin DNS srv record for both called 
> foo.example.com
>
> I already have DNS entries for both hosts in IPA:
>
>   # ipa dnsrecord-show example.com foo1
>     Record name: foo1
>     A record: 10.0.0.1
>   # ipa dnsrecord-show example.com foo2
>     Record name: foo2
>     A record: 10.0.0.2
>
> I'd like to get the correct syntax for adding the srv record for foo.
> My understanding is that it should be something like this:
>
>   # ipa dnsrecord-add example.com _foo.tcp --srv-rec="0 50 53 
> foo1.example.com"
>   Record name: _foo.tcp
>   SRV record: 0 50 53 foo1.example.com
>   # ipa dnsrecord-add example.com _foo.tcp --srv-rec="0 50 53 
> foo2.example.com"
>   Record name: _foo.tcp
>   SRV record: 0 50 53 foo2.example.com
>
Hello Mark,

add dot at the end of SRV target.
ipa dnsrecord-add example.com _foo.tcp --srv-rec="0 50 53 foo1.example.com."

DNS server is adding 'example.com.' to all non-FQDN domain names
> which seemed to be added ok but on second glance I think not:
>
>   # host -t srv _foo.tcp.example.com
>   _foo.tcp..example.com has SRV record 0 50 53 
> foo1.example.com.example.com.
>   _foo.tcp..example.com has SRV record 0 50 53 
> foo2.example.com.example.com.
>
> In looking over the description of rfc2782 
> <http://en.wikipedia.org/wiki/SRV_record> it appears the IPA syntax is 
> a little different,
> and the documentation is scarce so admittedly I'm taking a swag at 
> this ;-)
>
> I can do this fine without srv but don't have enough familiarity with 
> DNS srv here.
> Can anyone help clarify what I'm missing? I'd like to have equal 
> weighting, priority
> to both hosts - I'm assuming the port (53) is correct for DNS here as 
> well.
>
> Thank you very much,
>
> -m
>
>
>
>
>
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>
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>


-- 
Martin Basti

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