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Comment Submit Your Comment By clicking you are agreeing to Experts Exchange's Terms of Use. So before we do that, let’s take a look at what the SPN records look like before we make any changes:  setspn -L catinexc02  (This is the 2007 CAS server) Registered Search for: Recent Posts A computer by any other name… would be better;how to change the hostname of a Windows 10 computer during setup Fun with Bash on Ubuntu on Windows For example, the Exchange Server Deployment Assistant states “We recommend you procure, import, and enable a Subject Alternative Name (SAN) certificate that contains the names for the current namespace, a legacy

The below SPN command fixes the CAS: setspn -A HOST/mail.sitec.com ex2007-sitec however after 15 mins it is deleted some how and the CAS no longer authenticates. The benefit of this approach is that your users do not need to learn a new URL for OWA or their Activesync devices. Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! If all authentication is performed by using Kerberos you will see the following Kerberos tickets: exchangeMDB exchangeRFR exchangeAB http When you will look in the event log of the client you

Upon further investigation I can see that the CAS proxy issue is down to the kerberos authentication between the public CAS site and the internal only CAS site and I have The following steps were performed after hours to reduce impact to our end users. Security Patch SUPEE-8788 - Possible Problems? The outside face (Outlook anywhere) is admin.schoolname.org.

This is because the Windows RPC over HTTP component used for Outlook Anywhere requires that the SAN or common name of the certificate must match the Certificate Principal Name configured for Also, it is best practice to make the common name the one used by OWA so that Outlook on Windows XP and older mobile phones do not have issues. From an ease of use perspective, this wizard is a welcome improvement over Exchange 2007, which only offered the powershell commands to work with certificates. Our hostnames where previously for example: Public Site 1: Ext: mail.sitea.com and Int: ex2007-sitea.local Public Site 2: Ext: mail.siteb.com and Int: ex2007-siteb.local Non-Public Site 3: Ext: $null and Int: ex2007-sitec.local They

OABGEN.DLL file is missing Obtaining the latest service pack/update rollup for Exchange Server 5.0 Obtaining the latest service pack/update rollup for Exchange Server 5.5 Obtaining the latest service pack/update rollup for If the SPN is missing or wrong, authentication fails. If you need to make sure that Windows Mobile devices trust the certificate that you purchase, make sure you purchase it from a company listed in MS KB 915840. Please help me in this matter Reply USF July 21, 2010 Should Exchange 2010 with Update Rollup 4 have an ExchangeAB SPN set if it's installed on Windows Server 2008

Use SetSPN from either a member server or a client system to assign Service Principal Names to a user or computer account. For service-level Kerberos authentication to work, each service needs to have a correctly registered Service Principal Name, or SPN. Post navigation Previous PostYet another (unannounced) Transporter Suite updateNext PostRequesting Web Server certificates from an Enterprise CA Leave a Reply Cancel reply Your email address will not be published. I have run the following SPN commands: setspn -A exchangeMDB/mail.sitec.com ex2007-sitec setspn -A exchangeRFR/mail.sitec.com ex2007-sitec setspn -A exchangeAB/mail.sitec.com ex2007-sitec This also fixes the CAS authentication issue, however the exchangeAB record is

Watson not enabled DSA Computer name mismatch DSACCESS.DLL file is missing The DSAccess configuration cache is full DSAccess configuration cache value is non-default DSAccess DisableNetLogonCheck registry parameter is non-default DSAccess has Watson not enabled DSA Computer name mismatch DSACCESS.DLL file is missing The DSAccess configuration cache is full DSAccess configuration cache value is non-default DSAccess DisableNetLogonCheck registry parameter is non-default DSAccess has Though not usually seen, there is a default SPN established at the time of account creation which is identified as the SAMAccountName with a Dollar Sign appended to it. In this screenshot two Kerberos tickets are listed which are being used by Exchange.

Authentication issues between clients that run Microsoft Office Outlook 2003 or later and the Exchange Information Store (mailbox data) may indicate the lack of a valid SPN for the exchangeMDB resource. SPNs are registered in Active Directory (AD) using the Service-Principal-Name attribute associated with an account object. Here are a few notes that may come in handy when dealing with Service Principal Names. Sponsored But Wait… That's Not All!

SetSPN is free, and it is already installed on your Windows PC or Server. Note: Earlier versions of Outlook do fall back to Windows Authentication if Kerberos authentication is unsuccessful. Thanks for sharing it. 10 January 2011 at 07:09 Alex said... Here are 8 top reasons to turn your email signature into a marketing channel.

Information wants to be free! NOT exch.school.local (as that only resolved internally) Does anyone have the steps handy to update the SPN records back to the way they should be? (admin.schoolname.org?) This is how the records The resulting report details important configuration issues, potential problems, and nondefault product settings. Using HSRP,CARP and VRRP within VMware ► April (2) ► March (6) ► February (3) ► January (4) ► 2009 (90) ► December (5) ► November (16) ► October (7) ►

asked 8 months ago viewed 152 times active 8 months ago Related 0Outlook Web Access 'broken' - authenticates but displays incorrectly and isn't useable3How should my android app connect to Exchange At the command prompt, type the following command, and then press Enter. In many cases, web applications running on IIS 7.5 will be using Kernel Mode authentication and will not require the use of SPNs to authenticate properly. The server FQDN is RA-Exch2010.RA.local.

The URL points to a virtual directory called Autodiscover in IIS on the CAS server the SCP objet belongs to. How to Set an SPN for an Active Directory Account The easiest way to set the Service Principal Name for an Active Directory account is by using the SetSPN utility. We appreciate your feedback. Service Principal Name missing [This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool.

One of the first things you will need to do is run SetSPN -L "ASA account"  to verify that all correct SPN's are registered. Ironically, if you were to purchase a certificate from Digicert, it would not be trusted by Windows Mobile 5 even though they are listed as a UC SAN certified partner in To obtain the Setspn.exe tool, see "Windows 2000 Resource Kit Tool : Setspn.exe" (http://go.microsoft.com/fwlink/?LinkId=28103). Kerberos authentication is not possible for Exchange services without properly set SPNs.

When you are using a CAS Array you will need to create an alternate service account (ASA) for this. Your coworkers will only ridicule you if you try to buy a SAN cert with contoso in the name somewhere =) Other organizations have gone ahead and selected a name like Why does the material for space elevators have to be really strong? If these SPNs are registered on an Exchange 2003-based server that is not also a global catalog server, you experience the following symptoms in your Exchange organization: You cannot use Microsoft

Advertisement Related ArticlesMicrosoft Exchange Server and SPNs, Part 2 Microsoft Exchange Server and SPNs, Part 1 Q: What improvements has Microsoft made in Windows 8 and Windows Server 2012 to reduce The users on the non-internet facing server were previously able to use OWA without any issues as there request would be proxied via either of the internet facing servers. You can also use the Exchange Server Remote Connectivity Analyzer to verify connectivity for the legacy namespace. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]   Topic Last Modified: 2009-02-04 The Microsoft Exchange Server Best Practices Analyzer examines

On each machine, the SMTP service is running under a designated account, in this case NetworkService. But what if Kerberos sometimes works and sometimes not, or does only work for specific users?  If it doesn't work a user will not be able to access his/her mailbox. The resulting report details important configuration issues, potential problems, and nondefault product settings. Follow the guidance in the SETSPN.EXE Setspn_d.txt file to add the missing value to the Active Directory object for your Exchange server.

When this is the case you can solve it by using setspn or AdsiEdit. You’ll be auto redirected in 1 second.