Redmine

Disclaimer: I am not an IT pro, I just play one on TV.

I am trying to migrate a Redmine instance from one server to another. The last bit that I am trying to get working is to connect Redmine to OpenLDAP.

My server configuration (details attached) is an Ubuntu 16.04.04 Server, with OpenLDAP 2.4.42 and Redmine 3.4.4. Note that this machine has a self-signed security certificate.

I am able to connect to the LDAP server with Apache Directory Studio and also ldapsearch on the command line.

LDAPTLS_REQCERT=never ldapsearch -D "cn=admin,dc=ubuntutest" -W -p 389 -h ubuntutest -b "dc=ubuntutest" -s sub -x -ZZ "(objectclass=*)"


When I configure the LDAP connection in Redmine and test it, I get the following error.

Unable to connect (SSL_connect SYSCALL returned=5 errno=0 state=SSLv2/v3 read server hello A)

I have a feeling this has to do with the self signed cert in some way, but I am not sure where to start looking here.

Any ideas?