Unable to create a successful TLS connection to the ldap masters when upgrade zimbra

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Unable to create a successful TLS connection to the ldap masters – Assalamualaikum, when we are upgrading zimbra version from 8.7.11 to 8.8.12, we found this error.

Unable to create a successful TLS connection to the ldap masters
Unable to create a successful TLS connection to the ldap masters

And this is how to fix it :

  • Run this on the ldap and proxy servers before the upgrade 
# su - zimbra 
$ zmlocalconfig -e ssl_allow_untrusted_certs=true 
$ zmlocalconfig -e ldap_starttls_supported=0
$ zmlocalconfig -e ldap_starttls_required=false
$ zmlocalconfig -e ldap_common_require_tls=0
$ zmcontrol restart

Note : the command function is to disable TLS, after the upgrade is done, TLS can be enabled again by flipping the values for the above.

Refrence | Read this : Blacklist User/IP Address Fortimail

May be usefull & enjoy, wassalamualaikum

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