Blog / Sysadmin

Opportunistic TLS

March 21, 2009

We had to upgrade our mail gateway/anti-spam software on Sunday because one of our vendors requires us to use encryption when exchanging emails with them. The easiest solution is to use opportunistic TLS, where the server will always try to connect to the other server using the TLS protocol. If the other server supports TLS, then traffic is encrypted. If not, then the email is sent using just regular SMTP without encryption.

This is actually …

How to automate Microsoft Office 2007 installation

March 11, 2009

I was just updating some documentation on our wiki and found some old notes on automating Office 2007 installation. We upgraded our Microsoft Office software early last year from Office 2003 (and a few Office XP) to Office 2007 and this simple installation script saved us a lot of time. Here are the steps:

Step 1. Copy the contents of the Office 2007 installation CD (or package) to a network share (eg. \\server\Office12).

Step …

How to change from ACPI Multiprocessor HAL back to ACPI Uniprocessor HAL in Windows 2003

January 9, 2009
Warning: Changing the number of virtual processors after the guest OS is installed may make your virtual machine unstable.

You’ve probably seen this message before while working with VMware, especially if you’ve done physical to virtual migrations.

As a best practice, it is recommended to always start with only 1 vCPU when creating virtual machines and only increase the number of vCPUs if you think it’s necessary and if the virtual machine is actually running …

Windows XP: Updating a domain account’s local cached password

December 3, 2008

So I took a laptop home from work tonight to do some tests and I forgot that I haven’t logged in to that laptop with my domain account for quite some time now so I of course got the message “Domain YOURDOMAIN is not available” and I couldn’t log in.

I connect to our network over a VPN connection using Cisco VPN Client but I first have to be logged in to Windows to do …

How to capture an image using BDD 2007 and ImageX

November 13, 2008

I was looking through some old notes and found this, hope this helps:

  1. PXE boot on the computer you wish to image.
  2. At the first prompt, choose the option “Exit to command Prompt.”
  3. Map a network drive to your distribution share and run ImageX. Example:
    1. net use x: \\bddserver\distribution
    2. cd x:\Tools\x86
    3. imagex /capture c: x:\Captures\ImageName.wim “Computer Image Description”