> DEBUG: Instance details: {'uri': 'ldaps://ldap-model.polytechnique.fr:636', 'basedn': None, 'binddn': 'cn=Directory Manager', 'bindpw': None, 'saslmech': None, 'tls_cacertdir': None, 'tls_cert': None, 'tls_key': None, 'tls_reqcert': 1, 'starttls': False, 'prompt': False, 'pwdfile': None, 'args': {'ldapurl': 'ldaps://ldap-model.polytechnique.fr:636', 'root-dn': 'cn=Directory Manager'}}
>
> DEBUG: Instance details: {'uri': 'ldaps://ldap-model.polytechnique.fr:636', 'basedn': None, 'binddn': 'cn=Directory Manager', 'bindpw': None, 'saslmech': None, 'tls_cacertdir': None, 'tls_cert': None, 'tls_key': None, 'tls_reqcert': 1, 'starttls': False, 'prompt': False, 'pwdfile': None, 'args': {'ldapurl': 'ldaps://ldap-model.polytechnique.fr:636', 'root-dn': 'cn=Directory manager'}}
>
> ldap.SERVER_DOWN: {'desc': "Can't contact LDAP server", 'info': 'error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed (self signed certificate in certificate chain)'}
> ERROR: Error: Can't contact LDAP server - error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed (self signed certificate in certificate chain)
I can't comment about the other environmental changes between those versions, but tls_reqcert is 1 in both options, aka ldap.OPT_X_TLS_HARD which means your ca cert must be in your LDAP ca store. You don't specify a tls_cacertdir or a tls_cacert, so whatever you have in /etc/openldap/ldap.conf will be used for this.
Most likely there is a fault in this config, or they cacertdir is not hashed.
If you use a cacertdir remember you need to run 'openssl rehash' in the directory to setup the symlinks to the PEM files.
If you use a cacert PEM file directly, ensure it's readable to your user etc.
As a last resort you could set 'tls_reqcert = never' in .dsrc to disable ca validity checking.
Hope that helps,
—
Sincerely,
William Brown
Senior Software Engineer, 389 Directory Server
SUSE Labs, Australia
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