Jan 10 2015

Unable to browse network in Linux using Pace router

I recently upgraded to VDSL and had to purchase a VDSL router. The only router that was readily available was a PACE VDSL router model 921VNX.

The problem is that I am now unable to connect to machines on my network from my Linux machines. I received a reply from an external URL when pinging a machine on my internal network.

After some research I found that it’s a known issue with the Pace routers. Some people advised that a firmware update resolved this for them but I already have the latest firmware update.

The video below shows how to get around it by editing your hosts file in Linux Mint.

Note: my Windows 8 PC’s could browse the network fine and connect to the other machines using the host name.


Jan 8 2015

Unable to connect a disconnected mailbox – User not found error when trying to connect a mailbox to a user in Exchange

We’ve had a few instances where we need to disconnect a mailbox and reconnect it to a new user account for a user. This should be easy right? Well not always.

It’s happened more than once where we try to use the Exchange Management Console to connect the mailbox to the user account but Exchange can’t find the user account. Have a look in Active Directory and the account shows up. You then try to connect the mailbox to the user account using the Exchange Management Shell with the same results. user not found.

See below on how to get this issue resolved:

1. Open adsiedit.msc (start, run and type adsiedit.msc)
2. Search for the user
3. Open the properties for the user you need to connect the mailbox to
4. Search for the msExchRecipientTypeDetails property
5. For users, change the value from 1 to 0

Wait for replication and then reconnect the mailbox to the user account.

Thanks goes to our colleague Waleed for sharing this with us.

 


Jan 8 2015

Outlook Web Access stops working after renewing 3rd party Certificate

We had an interesting issue this week. We renewed our Exchange certificate with a 3rd party vendor. Installed the certificate on Exchange and ISA Server.

OWA access from the internet stopped working after we installed the certificates. We tested OWA internally and it worked which pointed to something on the ISA server. After a long investigation we found the issue to be ISA running on Windows 2003 which is not compatible with the Secure Hash Algorithm 2 (SHA2) family of hashing algorithms that the certificates from our 3rd party cert provider issues.

Microsoft has a hotfix available to get around this. We were able to access OWA from the internet after installing this hotfix on the ISA server running Windows 2003 Server.

The Microsoft article can be found below. You will find more technical detail within this article and have the opportunity to download the hotfix. Note that you need to restart your Windows 2003 Server after installing the hotfix.

Microsoft KB938397


Jan 8 2015

E-Mail delivers to Deleted Items folder

We had a shared mailbox where all the mail sent to the mailbox delivered to the deleted items folder. To resolve this do the following:

1. Open Exchange Management Shell
2. Type Get-CalendarProcessing “mailboxname” | fl and press enter
3. If AutomateProcessing shows AutoAccept in the returned results then run the next cmdlet
4. Set-CalendarProcessing “mailboxname” -automateprocessing none
5. Wait for replication and check that Get-CalendarProcessing “mailboxname” | fl shows that it’s set to :none

We verified after running the above that mail delivered to the mailbox deliveres to the Inbox as expected.