So you've set up your EBS environment and now you want to change the public facing interface on your Security Server.  Perhaps you've removed your old firewall or you simply have had an environment change.  As you can probably guess it's not such a trivial task to do manually.  So in the spirit of making our solution easier and more flexible, as well as giving you more options for how you migrate from your old environment we created a command line tool mmsutils.exe.

Here's the walk through.

1. Sign in to the Security Server using your Domain Admin Credentials
2. Open cmd.exe
3. Set you current directory to be the EBS program directory in my case this was cd "\program files\Windows Essential Business Server"\
4. Next type mmsutils.exe /changeip and hit enter
• You should see the screen below  
5. Once you hit next the wizard will scan the network settings and check it has the right access to make the changes
6. Select your External adapter click next
7. Enter the new address and click next  
8. Once you hit change you'll see the progress window below it shouldn't take more than a few minutes.
9. Next you should see the screen below and you're done  

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