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You're reading from  Mastering Active Directory, Third Edition - Third Edition

Product typeBook
Published inNov 2021
PublisherPackt
ISBN-139781801070393
Edition3rd Edition
Tools
Active Directory Domain Services
Concepts
Networking
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Author (1)
Dishan Francis
Dishan Francis
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Dishan Francis

Dishan Francis is an IT professional with over 15 years of experience. He was a six-time Microsoft MVP in enterprise mobility before he joined Microsoft UK as a security consultant. He has maintained the RebelAdmin technology blog over the years, with lots of useful articles that focus on on-premises Active Directory services and Azure Active Directory. He has also written for other Microsoft-managed blogs such as canitpro and ITopsTalk. When it comes to managing innovative identity infrastructure solutions to improve system stability, efficiency, and security, his level of knowledge and experience places him among the very best in the field.
Read more about Dishan Francis

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Conditional forwarders

In DNS servers, we use DNS "forwarders" to forward DNS queries to external DNS servers when it can't resolve them internally. Usually it will be the ISP's public DNS servers. We also can use public DNS servers from a third party such as Google as a forwarder:

Figure 4.9: DNS forwarders

If the forwarders are not responding, the DNS server will use "Root Hints" to resolve the query.

Forwarders and Root Hints are used to resolve external DNS queries in general. But if we need to point DNS queries for a specific domain to a specific DNS server/s we can do that using "conditional forwarders." As an example, there is a partner company with the rebeladmin.net domain name. Their DNS server is 10.0.0.5. These two organizations are connected together via a VPN connection. So if any user in the rebeladmin.com domain tries to resolve the hostname in rebeladmin.net, it should forward to 10.0.0.5. To do that we can...

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Mastering Active Directory, Third Edition - Third Edition
Published in: Nov 2021Publisher: PacktISBN-13: 9781801070393
© 2021 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Dishan Francis

Dishan Francis is an IT professional with over 15 years of experience. He was a six-time Microsoft MVP in enterprise mobility before he joined Microsoft UK as a security consultant. He has maintained the RebelAdmin technology blog over the years, with lots of useful articles that focus on on-premises Active Directory services and Azure Active Directory. He has also written for other Microsoft-managed blogs such as canitpro and ITopsTalk. When it comes to managing innovative identity infrastructure solutions to improve system stability, efficiency, and security, his level of knowledge and experience places him among the very best in the field.
Read more about Dishan Francis

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