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Starting TLS failed

LDAP: couldn't connect to LDAP server

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--- tutorial:ldap:installopenldap [2016-04-03 22:19] – [Add Some Data] weichbr
+++ tutorial:ldap:installopenldap [2025-06-16 14:43] (current) – removed weichbr
@@ Line 1: / Line 1: @@
-{{tag>tutorial ldap}}
-====== Install and configure OpenLDAP on Debian 8 (Jessie) ======
-===== Requirements =====
-  * Debian 8 installation
-----
-===== Installation =====
-  * <code>apt-get install slapd ldap-utils</code>
-  * During installation, set an admin password
-  * Open ''%%/etc/ldap/ldap.conf%%'' and set the ''%%BASE%%'' and ''%%URI%%'' parameters:
-  * <code>
-#
-# LDAP Defaults
-#
-# See ldap.conf(5) for details
-# This file should be world readable but not world writable.
-BASE    dc=my,dc=domain,dc=tld
-URI     ldaps://ldap.my.domain.tld ldap://ldap.my.domain.tld:666
-#SIZELIMIT      12
-#TIMELIMIT      15
-#DEREF          never
-# TLS certificates (needed for GnuTLS)
-TLS_CACERT      /etc/ssl/certs/ca-certificates.crt
-TLS_REQCERT ALLOW
-</code>
-  * Run ''%%dkpg-reconfigure slapd%%''
-    * Answer the following prompts this way:
-| Omit OpenLDAP server configuration?                           | No                         |
-| Organization name:                                            | <pick something>           |
-| Administrator password:                                       | <same password as before>  |
-| Confirm password:                                             | <same password as before>  |
-| Database backend to use:                                      | MDB                        |
-| Do you want the database to be removed when slapd is purged?  | No                         |
-| Move old database?                                            | Yes                        |
-| Allow LDAPv2 protocol?                                        | No                         |
-  * Test connection:
-  * <code>$> ldapsearch -x</code>
-----
-===== Add Some Data =====
-  * We want to create some basic organizational units (OUs), e.g. for people and groups
-  * Create ''%%base.ldif%%'' with the following content:
-  * <code>
-dn: ou=people,dc=internal,dc=weichbrodt,dc=me
-objectClass: organizationalUnit
-ou: people
-dn: ou=groups,dc=internal,dc=weichbrodt,dc=me
-objectClass: organizationalUnit
-ou: groups
-</code>
-  * Add it with ''%%ldapadd%%'':
-  * <code>ldapadd -x -D cn=admin,dc=my,dc=domain,dc=tld -W -f base.ldif</code>
-----
-===== Enforce Authorization =====
-  * We do not want our directory to be world readable, so we need to setup some ACLs
-  *
-----
-===== Enabling TLS =====
-  * Make sure you have the following files:
-    * cert.crt - Your certificate (without any other intermediate certs)
-    * cert.key - Your private key
-    * chain.pem - The intermediate certs
-  * I assume the files are located at ''%%/opt/ssl%%''
-  * Add the openldap user to the ssl-cert group:
-  * <code>$> usermod -aG ssl-cert openldap</code>
-  * chown your files and set permissions:
-  * <code>
-$> chown root:ssl-cert cert.crt cert.key chain.pem
-$> chmod 640 cert.crt cert.key chain.pem
-</code>
-  * Create the tls.ldif file:
-  * <code>
-dn: cn=config
-changetype: modify
-add: olcTLSCipherSuite
-olcTLSCipherSuite: NORMAL
--
-add: olcTLSCRLCheck
-olcTLSCRLCheck: none
--
-add: olcTLSVerifyClient
-olcTLSVerifyClient: never
--
-add: olcTLSCACertificateFile
-olcTLSCACertificateFile: /opt/ssl/chain.pem
--
-add: olcTLSCertificateFile
-olcTLSCertificateFile: /opt/ssl/cert.crt
--
-add: olcTLSCertificateKeyFile
-olcTLSCertificateKeyFile: /opt/ssl/cert.key
--
-add: olcTLSProtocolMin
-olcTLSProtocolMin: 3.3
-</code>
-  * And apply it
-  * <code>$> ldapmodify -Y EXTERNAL -H ldapi:/// -f tls.ldif</code>
-  * To enforce TLS create the following ldif file and apply it:
-  * <code>
-dn: olcDatabase={1}mdb,cn=config
-changetype: modify
-add: olcSecurity
-olcSecurity: tls=1
-</code>