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Posted 21 Jan 2013
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SharePoint Alternate Access Mapping Configuration

, 21 Jan 2013
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Alternate Access Mapping Configuration in SharePoint

Alternate Access Mappings is a feature of SharePoint which allows a website to function correctly under different URL scenarios, including, reverse proxies and load balancing. It is a common practice used by many companies for their internal and external users. Let me try to explain how to configure Alternate Access Mappings.

Let’s say you have top level site collection URL which is http://ferdous-bs AND you would like to make URL for external user and for internal user.

  1. Go to Central Administration –> Alternate Access Mapping –>


  2. Add host name ( in the host file at c:\Windows\System32\drivers\etc\hosts as same as below. Here, you can use your server IP instead of


    If you want to access from network, then complete the network configuration for the alternate URL that you are planning to map with for internal user. It means IP has to be resolved when internal user hits on this URL.

  3. Try to access the site from your server using
  4. Oops! You will get “Authentication Error” if you access from Host Server but you can solve it using edit registry. Follow the instruction that I have written here.
  5. Now you should be able to access your site from network or from server using

Thanks for reading!


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

MJ Ferdous
Architect Brain Station-23
Bangladesh Bangladesh
Ferdous has industry level experience with SharePoint and has done several presentations and workshops on SharePoint. He also worked as SharePoint Consultant (CREDEM Italy, Robi etc) and Trainer (BASIS, JAXARA IT, LEADS Co.). He is currently working as SharePoint Architect at BrainStation-23. He also worked as Technical Project Manager for Congral LLC for managing revolutionizing Patient Centric Healthcare applications at the same company since 2009.

He worked on many international projects during his professional life. The major projects are included below:
Internal Enterprise Portal for Robi, Dhaka
nVision Solution for nSales A/S, Denmark
Shared Care Plan for Congral LLC, USA
Internet Banking Portal for the Bank of CREDEM, Italy
Document Management (DMS) for the Bank of CREDEM, Italy
MES solution for Rockwell Automation, Italy
Tourism for Travel Curve Inc., USA
and so on...

He is the author of several technical articles with over 49 articles published on where he is the Technical Author for the site and author of as well. He is also founder of SharePoint Expert group.

Looking for a Offshore Development or partnership.............. in any development in Dot.Net & Sharepoint 2007,2010 Platform.

Search him in google by 'MJ Ferdous' to get all links, articles, profile etc

Contact him:


Production troubleshooting, maintainability and scalability
SharePoint 2007/2010
Dot.Net Application
Project Management
Document Management Solution

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