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DNS Settings for Lync 2013

If you are setting up Lync Server 2013 for the first time or have been running Lync Server 2013, you will notice that Lync depends heavily on DNS records. In many cases, a Lync Server 2013 deployment cannot be setup correctly without using a split dns records setup and using a masked UPN, which can make things even more tricky, here is a complete listing of DNS records I used to deploy Lync Server 2013. I have verifed federation works properly, IMs, conferencing, dial-in meetings, mobile and desktop client sign-in, and desk phones. Note, records indicated in Red are records that are required/standard in every lync deployment.

Internal DNS Records

Record Type Value Points to

A

lyncdiscoverinternal.mydomain.com Lync front end server

A

lyncdiscover.mydomain.com Lync reverse proxy
(needed for mobile devices to work internally)

A

lync.mydomain.com Lync front end server

A

sip.mydomain.com Lync front end server
(multiple A records if enterprise pool)

A

dialin.mydomain.com Lync front end server

A

meet.mydomain.com Lync front end server

SRV

_ntp._udp.mydomain.com Domain Controller/Time Server

SRV

_sip._tls.mydomain.com sip.mydomain.com

SRV

_xmpp-server._tcp.mydomain.com sip.mydomain.com

SRV

_sipinternaltls.mydomain.com sip.mydomain.com

SRV

_sipfederationtls.mydomain.com sip.mydomain.com

External DNS Records

Record Type

Value

Points to

A webconf.mydomain.com Edge server IP as specified in setup wizard
A av.mydomain.com Edge server IP as specified in setup wizard
A sip.mydomain.com Edge server IP as specified in setup wizard
A meet.mydomain.com Lync Reverse Proxy IP
A dialin.mydomain.com Lync Reverse Proxy IP
A lync.mydomain.com Lync Reverse Proxy IP
A lyncdiscover.mydomain.com Lync Reverse Proxy IP
SRV _sip._tls.mydomain.com sip.mydomain.com
SRV _sipfederationtls._tcp.mydomain.com sip.mydomain.com
SRV _xmpp-server._tcp.mydomain.com sip.mydomain.com
Published inLyncMicrosoftWindows Server