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Brian R RicksOwner / Principal ConsultantBriComp Computers, LLC
Deep Dive into the Lync 2013 client sign in process
CLNT400
Discovery
Lync Client DiscoveryLync 2010DNS SRV Lookup
Lync 2013LyncDiscoverDNS SRV Lookup
Lync Mobile 201xLyncDiscover
Lync Phone EditionDNS SRV Lookup
Lync Windows Store AppLyncDiscover
Lyncdiscover vs. DNS SRV records
DNS SRV LYNCDISCOVERMultiple SRV Records Possible – varying costs
One A Record for inside and outside
Results return a Pool Name & Port
Results return Home Server, Edge Pool, Service Names, etc.
Supported on all Legacy Clients and Lync ‘Fat’ clients
Required for Mobility and Modern App
No query security Certificate Trust required &Autodiscover requires Auth
Lync 2013 Client (2010)LyncDiscoverCheck for Internal RecordIf Internal fails (does not exist or certificate failure) check for External RecordIf External fails process ends
SRV and DNSCheck for SRV record _sipinternaltls._tcpCheck for SRV record _sip._tlsCheck for A record sipinternalCheck for A record sipCheck for A record sipexternal
Web QueriesIf SIP registration is successful, internal/external names are provided and checked
Capture 1 – Internal Failure
Capture 2 – Internal Success LyncDiscoverInitial Login on Computer
Subsequent Logins on Computer
Capture 3 – Internal Success SRVInitial Login on Computer
Subsequent Logins on Computer
Web ServicesLyncDiscover Results
Web ServicesLync Autodiscover Results
Demo
Lync 2013 Sign-In Discovery using:Wireshark, Fiddler and Command Prompt
Lync Windows Store AppLyncDiscoverCheck for Internal RecordIf Internal fails (does not exist or certificate failure) check for External RecordIf External fails process ends
Web QueriesIf SIP registration is successful, internal/external names are provided and checked
Capture 1 – Internal FailureInitial Login on Computer
Capture 2 – Internal SuccessInitial Login on Computer
Subsequent Logins on Computer
Authentication
Lync SIP RegistrationBasic Registration
Lync Client to ServerConnection IssuesInvalid SIP URI
Typos – Failure at LYNCDISCOVERUser Not Provisioned
Invalid/Expired PasswordTypos – Failure at AD AuthHacks
Invalid CertificatePrivate Root Certificate
ToolsOCSLoggerCLSLoggingSnooper
Capture – Bad SIP URILyncdiscover Deployed
SIP traffic never reaches Lync Server – will not see any attempts in the SIP Logs
Capture – Bad SIP URI cont’DNS SRV only Deployed
Invalid CredentialsGood AD Creds, Wrong Lync Account
Bad AD Creds
Untrusted CertificateLyncdiscover – Fat client ignores HTTPS errors
But…Lync Server will not let the client on!
Demo
Lync Client to Server Authentication
Mobile Client
Lync 2013 Mobile (Apple iPad)LyncDiscoverCheck for Internal RecordIf Internal fails (does not exist or certificate failure) check for External RecordIf External fails process ends
Web QueriesIf SIP registration is successful, internal/external names are provided and checked
Client Logs (from Apple iPad)
External DNS Entry MissingNetwork Access Failure
Questions?
Microsoft PavilionDemos, Speakers, Demos, Lync Room System, Experts, Demos, a Bar....and more Demos
ATTENDEE PARTYWednesday, February 19th
6:30pm-9:30pmHakkasan, MGM Grand
Brought to you by
When it comes to Vegas nightclubs, it doesn’t get any hotter than Hakkasan. And when it comes to opportunities to connect and reasons to party, no one does it better than Lync Conference! Our attendee party has a full lineup: an open bar, awesome food, and one of the best DJs that Vegas has to offer. Don’t miss out on the fun—stop by at 6:30pm and kick off and evening to remember. Come together.
HANDS-ON LABS
You can also access labs on MyLync!
3:00pm – 9:00pm10:30am – 9:00pm7:30am – 9:00pm8:00am –1:30pm
LOCATIONPinyon 3
Monday, February 17Tuesday, February 18Wednesday, February 19 Thursday, February 20
LRS
LOCATIONCopperleaf 12
Wednesday, February 198:30am – 9:45am10:15am – 11:30am1:00pm – 2:15pm2:45pm – 4:00pm4:30pm – 5:45pm
Thursday, February 209:00am – 10:15am10:45am – 12:15pm12:45pm – 2:00pm
MyLync allows you to create a custom experience and network with the Lync Community both online and in person.With MyLync, you can:• Build your own personalized calendar while browsing all available sessions• View breakout session material including PPTs and Videos within
48 hours of each session• Participate in the Community and find people in your social networks
who are attending and interact with speakers• Arrange meetings or social activities• Navigate the Exhibit Hall floor plan and learn more about our Sponsors• Fill out evaluations to win prizes
Log into MyLync at http://mylync.lyncconf.comFor MyLync support, please visit the Registration Desk.*
* Please note that adding a session to your calendar does not reserve a seat. Seating is on a first-come, first-served basis.
Birds of a FeatherBirds of a Feather flock together! Join daily breakfast discussions of relevant topics by sitting in the separately designated areas of the Meal Hall. Seating will be sorted in a different way for each Birds of a Feather breakfast:Wednesday, February 19:Where are you from? Asia/Pacific, Eastern & Central Europe, Latin America, Middle East & Africa, US (West, Central & East) and Canada, Western Europe
Thursday, February 20:What is your interest?Best Practices, Business Value, Clients & Mobility, Lync Meetings and Video, Lync Online, Networking, Platform, Server & Manageability, Voice
Fill out evaluations to win prizesFill out evaluations on MyLync or MyLync Mobile.Prizes awarded daily.
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.