Hello, I have a problem connecting to an ldaps:// server using freeradius-ldap in Ubuntu 18.04, it says, when I run freeradius -X -xxx: Tue Oct 15 16:47:55 2019 : Debug: rlm_ldap (ldap): Connecting to ldaps:// ldap.aiias.edu:636 Tue Oct 15 16:47:55 2019 : Debug: rlm_ldap (ldap): New libldap handle 0x564a538dda60 Tue Oct 15 16:47:55 2019 : Error: rlm_ldap (ldap): Failed setting connection option new TLS context: Unknown error Here's what I did: Installed freeradius using 'apt-get install freeradius-ldap' then modified /etc/freeradius/3.0/mods-available/ldap to have: server = 'ldaps://ldap.aiias.edu' port = 636 identity = 'cn=Administrator,cn=users,dc=aiias,dc=edu' password = not-the-real-password base_dn = 'dc=aiias,dc=edu' tls { certificate_file = ${certdir}/aiias-edu.crt private_key_file = ${certdir}/aiias-edu.key } then linked mods-available/ldap to ../mods-enabled/ldap Thanks for your help in advance. All the best, Shem Pasamba