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Tuesday, April 23, 2024

Pin Point DNS for your non-internet facing exchange server

Scenario – Site to site proxying with one Internet facing Exchange server

Site 1 (Primary) – Exchange Server (Internet Facing Server)

Site 2 (Secondary) – Exchange Server (Non- Internet Facing Server)

Site 2 server name has to have “A” record called site2.careexchange.in pointing to internal IP. Where has careexchange.in has websites/external applications etc. Creating a zone called careexchange.in internally where i need to recreate all public dns records internally for my active directory users.

Alternatively,You can create DNS records for internal objects which doesn’t have a Zone. If you create a Forward Lookup Zone for them then you need to maintain all the external records for that domain. Which will be headache for any admin.

To overcome this – We can create a Pin-Point record in Microsoft DNS server with very minimal effort.

Open Microsoft DNS server – Click on new zone

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Choose Primary zone –

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Choose To all Domain Controller in this domain : Careexchange.in

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Choose “Allow only secure dynamic updates (recommended for Active Directory)”

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Enter – Site2.careexchange.in

Site2.careexchange.in – is my backend site,Root domain careexchange.in has many public dns records where i don’t want to create a internal zone and manage those records Internal and external.

creating a pin point dns only for this record,am not touching any other record except site2.careexchange.in

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now i have created a internal dns record for my backend site. Which doesn’t affect my external dns records for internal Active directory users.

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Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.

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