To transition the client access namespace to Exchange Server 2019, change the DNS record for the client access namespace to the Exchange Server 2019 environment.
1. Login to the Domain Controller server and change DNS for internal clients.
2. Open the DNS Manager tool.
3. Select View and click Advanced.
4. Change the IP address of mail.gooddealmart.ca to the same as the Exchange 2019 server.
5. Change the TTL from 1 HH to 1 MM and click OK.
6. Change firewall NAT settings for external clients and ensure the NAT IP address (or port forwarding) from the Exchange 2016 to the Exchange 2019 server.
I hope you enjoy this post.
Cary Sun
X: @SifuSun
Web Site: carysun.com
Blog Site: checkyourlogs.net
Blog Site: gooddealmart.com
Amazon Author: Amazon.com/author/carysun
About Post Author
Cary Sun has a wealth of knowledge and expertise in data center and deployment solutions. As a Principal Consultant, he likely works closely with clients to help them design, implement, and manage their data center infrastructure and deployment strategies.
With his background in data center solutions, Cary Sun may have experience in server and storage virtualization, network design and optimization, backup and disaster recovery planning, and security and compliance management. He holds CISCO CERTIFIED INTERNETWORK EXPERT (CCIE No.4531) from 1999. Cary is also a Microsoft Most Valuable Professional (MVP), Microsoft Azure MVP, Veeam Vanguard and Cisco Champion. He is a published author with several titles, including blogs on Checkyourlogs.net, and the author of many books.
Cary is a very active blogger at checkyourlogs.net and is permanently available online for questions from the community. His passion for technology is contagious, improving everyone around him at what they do.
Blog site: https://www.checkyourlogs.net
Web site: https://carysun.com
Blog site: https://gooddealmart.com
Twitter: @SifuSun
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