DCOM Troubleshooting

Getting thousands of 10009 errors on your server? This is probably because
the server cannot communicate properly with the client workstation due to
firewall or other issues.

Follow this guide to isolate the problem:
http://blogs.msdn.com/b/asiatech/archive/2010/03/16/how-to-troubleshoot-dcom-10009-error-logged-in-system-event.aspx

WSUS - Clients not updating

If WSUS clients are not connecting to the WSUS server and giving errors
such as "WARNING: GetAuthorizationCookie failure, error = 0x800710DD" in
the WindowsUpdate.log file - you probably have a permissions issue on the
IIS WSUS site. To check that the permissions are set correctly use this:
http://technet.microsoft.com/en-us/library/cc708545%28WS.10%29.aspx

And to check the IIS Anonymous user password is in-sync with IIS follow
this:
http://blog.montopolis.com/2007/06/02/easily-resync-iis-anonymous-user-account/

Exchange 2003 - Anti Spam Configuration

Exchange 2003 has some anti-spam functionality that can be implemented on
the server in a pinch:

Recipient Filtering
Sender Filtering
Intelligent Message Filtering (SCL Rating)
Connection Filtering (RBL Black lists)

These need to be configured and enabled on the SMTP virtual server before
it works.

This link will demostrate how to deal with an NDR type attack and shows how
to configure the filters inside the ESM
http://support.microsoft.com/kb/886208

http://support.microsoft.com/default.aspx?scid=kb;[LN];261087

Tarpitting is another mechanism used to prevent Directory Harvest attacks
http://support.microsoft.com/kb/842851/

If you need to dump the existing SMTP queue as it is filled with spam -
rename the Queue directory found here
http://support.microsoft.com/kb/822933

Acronis ABR10 - 'Not enough storage is available to process this command' errors

This is when the temporary snapshot file acronis creates cannot grow big
enough to complete the backup job.

The solution is to either move the snapshot file to a bigger volume or
increase its size or both as per http://kb.acronis.com/content/8032

SBS WMI Performance Monitoring Errors

If the server is sending alerts like this:

Processor : Critical condition. WMI Status: 2147749889 Enumeration failed.
Object not found. Data Collector is misconfigured. 0x80041001 :

Also

PagingFile : Critical condition. WMI Status: 2147749889 Enumeration failed.
Object not found. Data Collector is misconfigured. 0x80041001 :

And

Redirector : Critical condition. WMI Status: 2147749889 Enumeration failed.
Object not found. Data Collector is misconfigured. 0x80041001 :

You may need to rebuild the performance counter libraries as per
http://support.microsoft.com/?id=300956

Source URL:
http://www.winserverkb.com/Uwe/Forum.aspx/windows-server-sbs/23662/What-does-this-mean