After some chatter on the mailing list, the problem is now understood: - TLS error messages are indeed reported by OpenLDAP: TLS: could not use key file `/usr/local/etc/openldap/certs/ldap.key.pem'. TLS: error:0200100D:system library:fopen:Permission denied /usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/bio/bss_file.c:356 TLS: error:20074002:BIO routines:FILE_CTRL:system lib /usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/bio/bss_file.c:358 TLS: error:140B0002:SSL routines:SSL_CTX_use_PrivateKey_file:system lib /usr/src/secure/lib/libssl/../../../crypto/openssl/ssl/ssl_rsa.c:648
- The only way to see these error messages is to start the daemon with '-d stats' -- Setting 'loglevel stats' in slapd.conf will not cause these error messages to be printed. They only appear if the daemon is started in foreground mode with '-d stats'. My suggestions: print the TLS error messages out to syslog, or if that's not possible, print them to stdout regardless of whether the daemon is running in the foreground or not.
