triofuture.blogg.se - Microsoft lync for mac shutdown

#MICROSOFT LYNC FOR MAC SHUTDOWN HOW TO#
#MICROSOFT LYNC FOR MAC SHUTDOWN REGISTRATION#
#MICROSOFT LYNC FOR MAC SHUTDOWN WINDOWS#

(This record is rarely used in real world deployments). which should only ever be populated in an external DNS zone.

In the event that none of the records above successfully return a query the last attempt is to sipexternal.

Host (A) record is tried next and is often used for both internal and external resolution. Host (A) record is then queried and would normally be resolvable only against internal DNS zones, in the same fashion that lyncdiscoverinternal would have been (if it existed).

#MICROSOFT LYNC FOR MAC SHUTDOWN WINDOWS#

The Lync 2013 Windows Store app actually stops here (as shown in the next section) and does not advance further, hence the requirement for deploying the Lync Discover service correctly even if mobility client are not planned for support in an environment. If neither of these records are resolvable then the legacy DNS Service Locator Record (SRV) and Host Record (A) fall-back process is used. Host (A) record is then attempted and would be the preferred first resolution for external clients. This record should only be available to hosts with acesss to the internal DNS servers, so external clients (not connected via VPN) should typically receive no response for this query and then move on to the next. The results above clearly show that the new order of preference for the Lync 2013 Windows client is to leverage the Lync Discover service which was first introduced in Lync Server 2010 CU4 for supporting the Mobility clients.

#MICROSOFT LYNC FOR MAC SHUTDOWN REGISTRATION#

The resulting display should show the exact records and order that the Lync 2013 client attempted to query in order to perform autodiscovery of the Lync registration server.

Use the following query in the Wireshark filter field to display only the DNS queries themselves, hiding all other traffic from the capture window. This IP address should be that of the primary DNS server assigned to the workstation.

Stop the trace in Wireshark and take note of the Destination IP address for each DNS resolution query (not the query response).

As long as the test domain name selected is in fact fake and not actually configured for Lync then the entire process should fail, resulting in the following error.

Monitor the Wireshark window while the Lync client is attempting to sign-in and notice each type of DNS record which is resolved and the resulting failure.

Switch to the Lync 2013 client and enter a fake SIP Address (e.g.

Start a live capture in Wireshark and then enter the text ‘ dns’ in the Filter field to only display DNS related traffic entering and leaving the workstation.

Sign out of the Windows Lync 2013 client on the test workstation and then launch Wireshark.

The following test scenario uses Wireshark but the same process can be used with other network packet capture utilities. As each autodiscover step fails to receive a suitable response the process will advance to the next logical step. In order to observe this behavior simply run a network capture on a workstation running the Lync 2013 client and then attempt to sign-in using a bogus SIP domain name. Changes to guidance and deployment practices surrounding the Autodiscover service are also discussed.

#MICROSOFT LYNC FOR MAC SHUTDOWN HOW TO#

This article shows how to verify and test the automatic sign-in behavior of various Lync clients in an environment by showing the different client behavior and comparing the Windows client to the Windows Store app. A recent NextHop article explains in some detail the fact that the new Windows Store Lync client only supports the newer Lync Autodiscovery method for locating a Lync registrar to sign-in to the environment.