My ZCS 8.8.8p2 environment is working and is stable and now I'm looking to secure it a little more...
I'm trying to follow the guide at: https://wiki.zimbra.com/wiki/SecureConfiguration
But when I get to Services Step #2 and enter:
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zmprov ms `zmhostname` zimbraMailMode https
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HTTP ERROR 502
Problem accessing ZCS upstream server. Cannot connect to the ZCS upstream server. Connection is refused.
Possible reasons:
upstream server is unreachable
upstream server is currently being upgraded
upstream server is down
Please contact your ZCS administrator to fix the problem.
Powered by Nginx-Zimbra://
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10.1.2.3:53653 - - [06/Oct/2018:04:39:57 -0400] "GET https://zimbra.example.com/zimbra/ HTTP/1.1" 502 1332 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0" "10.1.2.4:8080" "10.1.2.4:5443"
Any help would be appreciated.
Thank you