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On Wed, 15 May 2019, Elias Falconi via dovecot wrote:
2019-05-15 16:27:43 auth: Error: LDAP /etc/dovecot/dovecot-ldap.conf.ext:
ldap_start_tls_s() failed: Can't contact LDAP server
2019-05-15 16:39:36 auth: Error: LDAP /etc/dovecot/dovecot-ldap.conf.ext:
ldap_start_tls_s() failed: Connect error
2019-05-15 16:39:43 auth: Error: LDAP /etc/dovecot/dovecot-ldap.conf.ext:
ldap_start_tls_s() failed: Local error
# Space separated list of LDAP hosts to use. host:port is allowed too.
hosts = 139.147.9.135
# Use TLS to connect to the LDAP server.
tls = yes
# TLS options, currently supported only with OpenLDAP:
#tls_ca_cert_file =/etc/ssl/certs/ldap.crt
tls_ca_cert_file =/etc/ssl/certs/ldap6_cacert.pem
# is still used, only the password field is ignored in it. Before doing any
# search, the binding is switched back to the default DN.
auth_bind = yes
# For example:
# auth_bind_userdn = cn=%u,ou=people,o=org
#
#auth_bind_userdn =
are you sure these settings fit each other?
a) IP address, but force tls with cert
- -> is the IP address part of the alternate subjects of the cert?
you seem to use STARTTLS
https://docs.oracle.com/cd/E22289_01/html/821-1273/testing-ssl-starttls-and-sasl.html
b) once you've sorted TLS out looks like auth_bind conflicts with
auth_bind_userdn
- --
Steffen Kaiser
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