FQDN and new alias name

Posted on 2006-04-04
Last Modified: 2012-06-27
Hi folks

I have a local Windows domain called  using MS integrated AD and DNS

machines FQDN's are automatically registerred in our dns as

we have an external DNS record setup with our ISP which is forwarded to our external IP which is natted to our webmail server.

People on our Lan who wish to access this service allways resolves to our outside IP which will fail from local access so they need to type in to get to the webmail services.

I need to register something in our DNS that our local DNS will resolve to our local IP address.

Under forward lookup Zones We have, Anything I register (new Host (A) or Alias (CName)) will have this as part of the fqdn i.e.
Obviously not much use

There must be a way round this as I think think this is a common scenario. Do I need to create a New Zone or am I missing a trick here.


Question by:JoCox99
    LVL 30

    Expert Comment

    Here is my formula to make things work...
    Go into DNS manager..

    First create your reverse zone if not done already

    Right click on REVERSE ZONE, and then create the zone using 192.168.1.
    next right click on FORWARD ZONE
    then choose primary and enter in
    once the forward zone is created, select THAT zone ( and right click
    add an A record choose the default settings and make sure there is a checkmark on create associated PTR record
    right again on THAT zone (, choose CNAME (canonical name), enter 'www' as the alias, and the IP address 192.168.1.x.  (make sure you have that last "." after the 1.) where x is your server.
    right click on the server and choose update server datafiles.
    LVL 10

    Accepted Solution

    Create an AD integrated primary zone "" in your internal DNS server and add an A record (email) with the internal IP address of the owa server.

    Be careful and test it, you can break things because internal users can no loger resolved external addresses in '' domain.

    Author Comment

    works a treat, concise and easy to follow.

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Top 6 Sources for Identifying Threat Actor TTPs

    Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

    As the title indicates, I have done this before. It chills me everytime I update the OS on my phone, ( because one time I did this and I essentially had a bricked …
    Sometimes a user will call me frantically, explaining that something has gone wrong and they have tried everything (read - they have messed it up more and now need someone to clean up) and it still does no good, can I help them?!  Usually the standa…
    Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…
    Hi everyone! This is Experts Exchange customer support.  This quick video will show you how to change your primary email address.  If you have any questions, then please Write a Comment below!

    760 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    8 Experts available now in Live!

    Get 1:1 Help Now