Exchange Authentication Cert Issue

Question

MSAzure101 121

This is following on from my upgrade for Exchange 2013 CU6 to CU23 and applying the security patch.

(Non internet facing server) so it was just done recently

The entire upgrade went fine , the cert was out of date but I renewed it and it allowed me to finish upgrade

Exchange server doesnt have any mailboxes databases and is really an Admin console

I believe we would get rid of it ,but have to have it there for MS reasons

Enclosing screenshot of cert error

Googled a few ways to replace this , looking for best way to do this :)

Answer accepted by question author

3 additional answers

Answer 1

Andy David - MVP 159.7K MVP Volunteer Moderator

You will always see that error if accessing it via the URL ( Localhost) since that is not a valid FQDN

Answer 2

MSAzure101 121

Thanks AndyDavid , whats best way to resolve it?

Andy David - MVP 159.7K Reputation points MVP Volunteer Moderator

2021-04-08T14:58:21.693+00:00

Connect to the server using the FQDN on the cert not localhost - or just ignore it if you want to connect via localhost :)

Answer 3

MSAzure101 121

Thanks problem is it doesnt let me ignore it, only option is to close the web page as per screenshot :)

Andy David - MVP 159.7K Reputation points MVP Volunteer Moderator

2021-04-08T15:22:30.727+00:00

in that case, connect via the valid FQDN of the server that is also a subject name on the cert :)

Answer 4

MSAzure101 121

Sure AndyDavid, sorry was just going to change cert but that sounds good, thanks again and enjoy rest of your day :)