NYExUG 3/12 Meeting Follow-up - Troubleshooting Tips

We had an excellent Exchange User Group meeting this past Tuesday about Troubleshooting Tips. Even though we ran later than we had in a while, we could not cover everything. I've highlighted comments and feedback received during the meeting and after. Thank you to everyone for your feedback. This is what makes us a community.

NYExUG Exchange Troubleshooting and Tips Presentation

Correction: the Exchange Server User Monitor (ExMon) tool does not list ActiveSync versions, but other AS performance stats.

Dirt cheap $60 UCC/SAN (5 names) certificate I recommend is https://certificatesforexchange.com/ which is backended via GoDaddy.

RDP Manager I use is called RoyalTS ($35) which has a lot of flexibility, functionality, stability, and works on XP and above. http://www.code4ward.net/main/

Website tool highlights from my presentation

• Microsoft owned Remotely Testing Outlook (RPC), ActiveSync, Web Services, Email (smtp) and even Office 365 https://www.testexchangeconnectivity.com
• Review DNS Records for Auto Discovery - http://centralops.net
• Review DNS Records for basic MX/A Records – http://tools.appriver.com
• Checking for RBLs – http://www.mxtoolbox.com
• [application] Stress testing application for generating email (Server Traffic Test) - http://www.icewarp.com/downloads/tools/ No reboot and stable application.

Attendees Feedback (thank you)

• The website designed to check your TLS configuration. http://www.checktls.com
• "Out of control transaction logs. On a number of occasions we have had the transaction logs grow significantly (one every second or so). This can be caused by a rogue application sending emails via your HT or a bad out of  office configuration. We have experienced both.  The last one was a user's out of office settings. They had used the rules section in the out of office. Viewing the transaction log showed the user forwarding the same email every second or so. Turning of the out of office resolved the issue."
• Exchange environment summary report based (# of Exchange Servers & mailboxes, DB sizes, DAG status, etc.  http://www.stevieg.org/2011/06/exchange-environment-report
• Post on troubleshooting ActiveSync issues from the Exchange Team Blog.  http://blogs.technet.com/b/exchange/archive/2012/01/31/a-script-to-troubleshoot-issues-with-exchange-activesync.aspx
• Tony Redmond wrote an excellent article about ActiveSync not working as a result of 2010 user being a member of the priv’ group on his blog site. If he’s truly 2003 user, then the only thing I can think of is setting up similar profile on a different iphone. If that stil doesn’t work then it’s the account & he may need to look into deleting the EAS association via adsiedit & redo the EAS profile on the device. An Exchange MVP (Michael B Smith) has commented several times in the past on the MSExchange forum re: the ills people have been experiencing with iphones – in our own environment we’ve seen disappearing emails/corrupted calendars/and all sorts of wackiness. I can forward forum posts if people are interested but my desktop team has been beaten into submission about what to do/not to do when it comes to syncing EAS devices with Exchange.  http://thoughtsofanidlemind.wordpress.com/2010/10/08/ex2010-insufficient-access/
• Free Microsoft RDP manager mentioned was Remote Desktop Connection Manager (I didn't like the last version, so I know nothing about this one -Ben)  http://www.microsoft.com/download/en/details.aspx?id=21101

Any comments, post them or email me. Thanks.
-Ben

Intro to Exchange 2007 & SSL Certificates

[Written in December 2008. Not sure why I didn't post it back then. Found in my drafts.]

Ehlo All,

SSL Certificates (aka SSL certs, certs) are complicated. Exchange is complicated. Quick story... during my research, I read about a Microsoft employee (Exchange admin) who thought a bug existed with a SSL cert vendor's special "Exchange 2007" cert. So he contacted an Exchange Team PM about the issue and it turned out he didn't properly configure the Exchange SSL cert generation. Moral of the story, add SSL certs & Exchange 2007 together, and it can be a real challenge. So, I recommend you read this intro if you're considering or even using Exchange 2007 & real SSL certs especially since many things have changed.

First, the good news with Exchange 2007. Microsoft now includes self-signed certs on install. So, you're secure out of the box. Meaning, everything is encrypted, but you'll get errors each time you access a SSL protected site with it. So, you'll want to fix this.

Well, everything you know about Exchange 2003 SSL certificates can be thrown out, or that's what I've learned so far. You can use wildcard SSL certs, but you'll run into issues in the future (Outlook auto-discovery has issues, Windows Mobile 5 has issues, etc), so I would recommend you embrace the new SSL cert that Microsoft wants you to use OR learn about a special DNS configuration that lets you avoid this (thanks to a MS June 07 update for Outlook 2007).

As per the new certs, they are best described by DigiCert (I liked their explanation & enhanced it some) is:

Exchange 2007 Certificates Definition
The new SSL certificates are called Unified Communications Certificates (aka UC Certificates, UCC Certificates, or SAN certificates) which give you full control of the Subject Alternative Name field so you can secure as few or as many host names as you like with just one SSL certificate. These are NOT wildcard certs since they secure specific hostnames you define within this one cert. Wildcard certs secure any subdomain (e.g. *.mydomain.com), while UCC certs secure (autodiscover.mydomain.com, webmail.mydomain.com, mail.mydomain.com, exchsrv.mydomain.local, etc).

Microsoft's Recommended List of UCC Cert Providers as of 12/08
Comodo - http://www.comodo.com/msexchange/index.html
DigiCert - http://www.digicert.com/unified-communications-ssl-tls.htm
Entrust - http://www.entrust.net/ssl-certificates/unified-communications.htm
Microsoft's Recommended List of UCC Cert Providers

Special DNS Configuration to Avoid UCC Certs
So, you decided you didn't want to spend about $250-300 on a UCC cert for one year. I can understand. There is another option I hinted to above that relates to a June 2007 Outlook 2007 update that added a special feature to avoid the need for a UCC cert for autodiscovery or complex admin configuration. It involves setting a special DNS record to get around this. The DNS record is a SRV record. Once you have this SRV record set, the Exchange 2007 server's externl adn internal URLs need to be this one server as identified in the SRV DNS record.

Learn more about this in Microsoft White Paper on Auto-Discovery in Exchange & Outlook 2007. http://technet.microsoft.com/en-us/library/bb332063.aspx

MS Article on how to setup DNS SRV record for auto-discovery functionality
MS KB article about auto-discovery issues and fixes

-Ben