Communication Issues between Exchange Servers

Recently while transitioning one of my customers from Exchange 2007 to Exchange 2010, I experienced issues trying to replicate public folders between the servers. This was due to a larger mail flow communications problem between the two servers where mail between them was queuing up and never being delivered. To determine if you are experiencing this particular issue or not, use the Queue Viewer which is located in the toolbox section of the “Exchange Management Console”. If email that should Read more [...]

Exchange 2010 Implementation Tip for Antivirus

Prior to implementing Exchange Server 2010, check with your current Antivirus vendor to validate their product is supported on Exchange 2010. The messaging agent component of Trend Micro Worry-Free Business Security Advanced 6.0 will not install and is not supported on a server running Exchange 2010. WFBS Advanced 7.0 will fully support Exchange 2010 and is scheduled to be released in the fourth quarter of 2010. Trend Micro is current providing their WFBS Advanced customers with a temporary license Read more [...]

Exchange 2010 Implementation Tip for Backup Exec 2010 Users

You should plan to move your Backup Exec 2010 Media Server to 64bit before implementing Exchange Server 2010. A Backup Exec 2010 Media Server that is running a 32bit operating system is unable to backup an Exchange 2010 Information Store. This is because Microsoft does not support 32bit Exchange Management Tools for Exchange 2010. Here's the error message you'll receive if you attempt to backup an Exchange 2010 Information Store with a 32bit Backup Exec 2010 Media Server: Error category    : Resource Read more [...]

Unable to view PDF documents hosted on an IIS 7.5 Web Server

If you’ve recently migrated a web server that houses downloadable PDF documents to IIS 7.5, your users may be encountering issues viewing some of the PDF documents in a web browser. This is due to a change in the way IIS 7.5 handles the downloading of PDF documents. It doesn't affect all versions of Adobe Reader and it doesn't affect all PDF documents so it is very difficult to troubleshoot. Updating Adobe Reader to the latest version on the client end will normally resolve the problem. There's Read more [...]

Unable to connect to a Castelle FaxPress 5000 – Solid Red Alarm

You are no longer able to communicate with your Castelle FaxPress 5000 device. The red light is on solid and the green light is off. Whether this is a new installation, you've moved the back-end portion of the software to a new server, or nothing has changed that you're aware or, here is a major pitfall that you may want to look into before scrapping the device and looking for an alternative solution. The error shown below is what the clients who use "Faxmain" will receive. It's fairly generic Read more [...]

Mailbox Move Failure on Exchange 2010

You’ve attempted to move mailboxes to your new Exchange 2010 server and you receive the following error: Active Directory operation failed on dc1.domain.name. This error is not retriable. Additional information: Insufficient access rights to perform the operation. Active directory response: 00002098: SecErr: DSID-03150BB9, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0 The user has insufficient access rights. Exchange Management Shell command attempted: ‘dc1.domain.name/users/test user’ | New-MoveRequest-TargetDatabase Read more [...]

Change OWA Logon Format to UPN on Exchange 2007/2010

To change the logon screen of your OWA website to ask for the user principal name (UPN) or email address instead of “Domainuser name”, change the following to “User principal name (UPN)”. To access this screen, from within Exchange Management Console, go to “Server Configuration>Client Access”, right click the OWA website listed under the “Outlook Web App” tab, select properties, and click the “Authentication” tab: Before: After: µ Read more [...]

Get-OWAVirtualDirectory Access is Denied on Exchange 2010

When attempting to open "Server Configuration>Client Access" from the Exchange Management Console, you receive the following error: An IIS directory entry couldn’t be created. The error message is Access is denied. HResult = -2147024891 It was running the command ‘Get-OwaVirtualDirectory’. Running the command listed in the error in the Exchange Management Shell gives you some additional information: To resolve this issue, add the "domainExchange Trusted Subsystem" group to the local Read more [...]

Multipath I/O Installation on Windows 2008 R2 Server Core

To determine if the Multipath I/O feature has been installed, login to your core server and run oclist.exe: If you already know the name of the feature or role your looking for, you can save yourself some time by piping the output of the oclist.exe command to the find.exe command. The /I parameter makes the search case insensitive. To install the MultipathI/O feature, run “start/w ocsetup.exe MultipathIo”. The name of the feature is case sensitive. Running Start/W in front of the “OCSetup.exe” Read more [...]

iSCSI Initiator Configuration on Windows 2008 R2 Server Core

This blog will guide you through the necessary steps of connecting the iSCSI initiator on Windows Server 2008 R2 Server Core to an iSCSI target or volume on a Storage Area Network. I prefer server core for the host operating system on my Hyper-V virtualization servers, but some things such as the iSCSI Initiator settings are easier to configure through a GUI. Luckily Microsoft has included the iSCSI Initiator control panel applet as part of R2. Log into your server and launch iscsicpl.exe. The Read more [...]

Dell EqualLogic PS4000 – Creating a Volume

You've followed the steps in my "Initial Configuration of a Dell EqualLogic PS4000 SAN" blog and now your ready to start carving up the disk space on your new Storage Area Network. Open Internet Explorer and browse to the management IP Address you assigned to your SAN group. Login with the “grpadmin” account when prompted. On the initial screen, underneath “Activities”, click “Create Volume”: Enter a meaningful name and description that follows your company's naming convention: Enter Read more [...]

Initial Configuration of a Dell EqualLogic PS4000XV SAN

Unpack your new Dell EqualLogic PS4000 Storage Area Network, install it in the server rack, and cable it up. A dedicated iSCSI network that is totally separate from your normal network is required. Depending on your existing environment, you could create a separate VLAN on existing gigabit Ethernet switches to separate the iSCSI traffic from normal network traffic or you could purchase two dedicated gigabit Ethernet switches and place them in a stacked configuration or connect them via a crossover Read more [...]

Dell EqualLogic PS4000XV Storage Area Network

One of my customers recently purchased a Dell EqualLogic PS4000XV Storage Area Network (SAN). Here are some pictures of the unit. Front of the Unit. Sixteen 3.5" Hard Drives in 3U of space: Back of the Unit. Dual Power Supplies and Controllers: 9.6Tb of Storage via sixteen 600Gb 15K SAS Hard Drives: Front of the controller card: Back of the controller card: Power Supply: Power Supply Fans: This seems to be a very cool piece of hardware for the SMB sector. I plan to write additional Read more [...]

How to change the IP Address on SCO Unix

One of my customers re-addressed their entire internal network to a new ip-address range to allow for future growth and DHCP server redundancy. They have a legacy Unix machine sitting in the corner that no one knows anything about, but they still need to access it for legacy data. I'm not a Unix guy so there may be easier ways to do this, but here's how I changed the ip-address: Login using the root account. Run "ifconfig -a" to determine the interface name (which is net0 in the example below): You Read more [...]

Joomla Invalid Session Error

Problem: Today when attempting to login to the administrator (administration) portion of one of my customers Joomla websites, I received an “Invalid Session” error. Internet Explorer only shows the error in the URL and just redirects you back to the login page: http://mikefrobbins.com/administrator/index.php?mosmsg=Invalid Session Google Chrome actually shows an “Invalid Session” error on the login page: Solution: You have a session directory specified in your php.ini file that does not Read more [...]