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Monday, 10 February 2014
How to Export a Distribution Group to a CSV File in Exchange 2013
get-distributiongroup | Sort -Property RequireSenderAuthenticatioNEnabled | Select Name, Requir
eSenderAuthenticationEnabled, PrimarySMTPAddress | Export-CSV "C:\IT Support\Dist.csv"
Friday, 17 January 2014
Exchange 2013 Server emails not being delivered - 451. 5.7.3
We suddenly saw no email being delivered from the UK site to the Data Centre Mailbox Server, the emails were being queued with a 451 5.7.3 error in the Queue viewer.
The message describes that Exchange Authentication has failed.
I first checked my Receive Connectors thinking that they did not have Exchange Authentication enabled but they did, this was not the issue. Never the less emails were building at my CAS Server and not delivering to my Mailbox Server. This is on a system that had been working for weeks.
What was different I thought. Well the Exchange Servers in the data centre were behind a Cisco ASA 5510 with a CSC module for scanning traffic for malware. This was different, before this the Exchange Mailbox Servers were behind a Watch Guard Firewall.
So what had happened? Well the CSC unit had failed and went this happens there is a default policy for what the traffic should do and in this case the traffic from my Exchange Server in the UK site to the Data Centre was not excluded and was dropped.
What I needed was to bypass the CSC Access Control List for this traffic so it was not dropped. To do this I found the CSC Class map and then the Global Policy, this references an Access Control List.
In the ACL I then added a line to deny traffic from my Exchange Server and stop it being dropped by the CSC policy. In this case the lines I added were
access-list global_mpc line 1 extended deny ip host 10.0.0.200 any
As soon as this was added the mail started to flow. This was a case to always check your Firewalls even when passing all IP traffic across a VPN.
Monday, 21 October 2013
Group Policy - How to Add Internet Favorites via Group Policy with Internet Explorer 10
This is a guide on how to add Internet Explorer Favorites via Group Policy when you have clients with Internet Explorer 10.
Open Group Policy Management MMC
From a Windows 2008 and above server open the Group Policy Management MMC.
Create a Group Policy
From the left hand pane, right click on Group Policy Objects and choose New
Name the Policy
In this instance we will name the Policy Internet Favorites
Edit the Policy
The Policy will now appear in the left pane and we can right click on this and choose Edit.
Create a Folder for the Favorites
Expand the User Configuration, Preferences, Windows Settings down to Folders. On the Folders option right click and choose New, Folder.
Folder Configuration
In the Path field we can enter the location for the folder, this should be the variable %FavoritesDir%\OurFolderName. Click OK to create.
Create a Shortcut for a URL
Expand the User Configuration, Preferences, Windows Settings, Shortcuts and right click to choose New Shortcut. Next set the Action to Create, the Name of the Shortcut in the format of our Favorites folder name from the above step and the name of the Favorite, so OurFolderName\OurFavorite
In the Target Type choose URL and in the Location choose Explorer Favorites.
In the Target URL enter the URL for the Web Site you wish to publish.
How to set a Favorite to a specfic Organisation Unit in Active Directory
Often we will want to show one Favorite to one person in a OU and another to someone else in a different OU, this can be done in Group Policy with Item Level Targeting. To set these options choose the Common Tab in the object and then seletc Item-level targeting and choose the Targeting button.
Create a Targeting Rule
This Window allows you to create targeting rules based on multiple criteria, in this case we want to make a decision based on the users OU. Choose New Item, Organizational Unit.
Editing Target Rule
The rule now shows that if a user belongs to a OU then they will have this shortcut apply, to select the OU choose the button marked ...
Find OU
From the Active Directory lookup choose the OU for the users.
Updated Target Rule
The OU is now selected and the target rule is updated.
Shortcut
You can now see the Shortcut is created for the Google Home Page.
Assign Group Policy to Active Directory
In the Group Policy Tree we want this Group Policy to apply to the entire Domain so right click on the top of the tree and choose Link and Existing GPO
Choose the GPO
From the list choose your GPO
Policy is Assigned
You can now see the GPO is assigned to the Domain and will now take affect.
Friday, 13 September 2013
2X Thin Client - PXE boot NBP is too big to fit into free base memory
Having problems with a PXE Boot image that caused this error.
PXE Error
When you start the PXE Boot you are shown this error message
NBP is too big to fit in free base memory
DHCP Setting
The issue is found in the DHCP Settings, you cannot load an IMG file straight into a PXE boot. The above image shows that the IMG file is being attempted to be loaded by the PXE boot. This will fail as it is too large to load at PXE boot.
PXE Boot File
The file you need to load is the PXE Boot file that then calls the IMG file you want to boot from. In this case I was using the 2X Thin Client and this has a PXELINUX.0 file in the TFTP root.
Update DHCP Option 67
In your DHCP config, update Option 67 to read the PXELINUX.0 file instead of the IMG file location.
Restart PXE Boot
Now when you start the PXE boot you will see that the PXELINUX.0 boots and then loads the IMG file correctly.
2X Thin Client
Now the 2X Thin Client boots as expected.
Thursday, 12 September 2013
Outlook 2013 List Pane is Blank
Blank Pane Problem
Which Update caused this?
Wednesday, 4 September 2013
How to move a user from a Parent Domain to a Child Domain with PowerShell
Here is the Power Shell for the task
move-AdObject -Identity"CN=HotChilli,OU=Overseas,OU=Staff,OU=Users,OU=daveshotsauce,DC=daveshotsauce,DC=Local" -TargetPath "OU=US,DC=us,DC=daveshotsauce,DC=local" -TargetServer "habenero.us.daveshotsauce.local"
Friday, 9 August 2013
How To - How to customise a a Service Case Field
This guide shows how to amend a field in a CRM Case, in this instance it is the Type field in Case Details
Choose Settings
Select the Settings option
Customizations
From the Customization menu, choose Customizations.
Customize the System
Choose the Customize the System option
Entities
Expand the Entities option and then choose Case and expand
Fields
Select the Field option and then check the field you wish to amend, then click Edit.
Field Options
In the lower left of the pane you can see the Field Type Options you are presented in the Service Case.
Create a Type
In the lower right pane, enter a value for the Type Label, the Value will increment by default. You can add a description if required.
Add Type
Click the green plus symbol to add the type to the field.
Publish Customization
Click Publish all Customizations to update the CRM with the changes.