Exchange URL Reconfiguration

C Y
C Y used Ask the Experts™
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Hi expert,

I configured all exchange server internal and external url as hostname.company.com which wasnt same as the standard url recommended by microsoft.

I suspect this caused the dns confusion and thats why external user are not able to login into the owa externally.

If i were to change the URL to standardized with microsoft guideline example: mail.company.com, what is the impact? or thing that i need to take note with?
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Senior Infrastructure Analyst
Commented:
You'd need to change all your MX records, your Exchange certificates, you would probably need to reconfigure the virtual directory URL's

https://technet.microsoft.com/en-us/library/ff629372(v=exchg.141).aspx 


It's not an easy thing, your DNS would also need to be looked at and updated.
MASEE Solution Guide - Technical Dept Head
Most Valuable Expert 2017

Commented:
You will have to make sure it is reachable if outlook using old names will be updated using autodisocver.
i.e. autodiscover.email.com assuming you are not planning to change email domain.
Make sure the name added to the certificate. Please check below article.
https://www.experts-exchange.com/articles/31221/Fix-for-Exchange-server-2016-certificate-and-related-issues.html
https://www.experts-exchange.com/articles/29657/Exchange-2010-Fix-for-an-Invalid-certificate-and-related-issues.html

Please use this to generate CSR.
https://www.experts-exchange.com/articles/28662/Easy-CSR-creation-Exchange-2007-2010-and-2013.html
Saif ShaikhServer engineer

Commented:
Internal URL would be server FQDN and external should be set as per your third party certificate SAN.

InternalUrl       : https://server.FQDN/owa/
ExternalUrl       : https://mail.domain.com/owa/

This is the default configuration.

How to is explained below article

http://www.mustbegeek.com/configure-external-and-internal-url-in-exchange-2010/
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C Y

Author

Commented:
hi everyone,

Based on all of your feedback, that's mean even if i did change the external URL in my EMC, it shouldn't have any huge impact does that correct?
Saif ShaikhServer engineer

Commented:
Yes there will be no impact.
MASEE Solution Guide - Technical Dept Head
Most Valuable Expert 2017

Commented:
As commented by Saif no impact.

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