What is the *correct* way to set up Openldap to use SSL/TLS? The documentation is somewhat confusing. My cn=config.ldif file looks like this: dn: cn=config objectClass: olcGlobal cn: config olcArgsFile: /var/run/openldap/slapd.args olcPidFile: /var/run/openldap/slapd.pid olcTLSCACertificatePath: /etc/openldap/certs olcTLSCACertificateFile: /etc/openldap/certs/ca_cert.pem olcTLSCertificateFile: /etc/openldap/certs/c764guest.cert olcTLSCertificateKeyFile: /etc/openldap/certs/privkey.pem structuralObjectClass: olcGlobal entryUUID: 7e6a3298-30da-1037-9c4f-458bcc6c0ce0 creatorsName: cn=config createTimestamp: 20170918163057Z entryCSN: 20170918163057.597791Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20170918163057Z in /etc/openldap/certs are these files: [root@c764guest heller]# ls -l /etc/openldap/certs total 104 -rw-r--r--. 1 root root 5137 Sep 22 14:42 c764guest.cert -rw-r--r--. 1 root root 1074 Sep 22 14:37 c764guest.csr -rw-r--r--. 1 root root 1696 Sep 22 14:18 ca-cert.pem -rw-r--r--. 1 root root 65536 Sep 18 12:30 cert8.db -rw-r--r--. 1 root root 16384 Sep 18 12:30 key3.db -r--r-----. 1 root ldap 45 Jan 10 2016 password -rw-r--r--. 1 root root 1834 Sep 22 14:37 privkey.pem -rw-r--r--. 1 root root 16384 Jan 10 2016 secmod.db /etc/sysconfig/slapd contains: # OpenLDAP server configuration # see 'man slapd' for additional information # Where the server will run (-h option) # - ldapi:/// is required for on-the-fly configuration using client tools # (use SASL with EXTERNAL mechanism for authentication) # - default: ldapi:/// ldap:/// # - example: ldapi:/// ldap://127.0.0.1/ ldap://10.0.0.1:1389/ ldaps:/// SLAPD_URLS="ldapi:/// ldap://127.0.0.1/ ldap://192.168.250.98/ ldaps:///" # Any custom options #SLAPD_OPTIONS="-s 128" # Keytab location for GSSAPI Kerberos authentication #KRB5_KTNAME="FILE:/etc/openldap/ldap.keytab" /etc/openldap/ldap.conf contains: # # LDAP Defaults # # See ldap.conf(5) for details # This file should be world readable but not world writable. BASE dc=deepsoft,dc=com URI ldaps://192.168.250.98/ TLS_CACERT /etc/openldap/certs/ca-cert.pem TLS_CACERTDIR /etc/openldap/certs TLS_REQCERT demand #SIZELIMIT 12 #TIMELIMIT 15 #DEREF never TLS_CACERTDIR /etc/openldap/cacerts # Turning this off breaks GSSAPI used with krb5 when rdns = false SASL_NOCANON on But now when I try to do a ldapsearch I get: [heller@c764guest ~]$ ldapsearch -x ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1) even though: [root@c764guest heller]# netstat -a|grep ldap tcp 0 0 0.0.0.0:ldaps 0.0.0.0:* LISTEN tcp 0 0 c764guest.deepsoft:ldap 0.0.0.0:* LISTEN tcp 0 0 localhost:ldap 0.0.0.0:* LISTEN tcp 0 0 c764guest.deepsof:33302 c764guest.deepsoft:ldap ESTABLISHED tcp 0 0 c764guest.deepsoft:ldap c764guest.deepsof:33302 ESTABLISHED tcp6 0 0 [::]:ldaps [::]:* LISTEN Is this correct? I am not sure if I should be using ldaps:/// or not. And I am not sure what the proper "magic" to get TLS working is. -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller(a)deepsoft.com -- Webhosting Services