Install OpenLDAP packages

This topic provides the steps required to install the OpenLDAP packages when you plan to use OpenLDAP as your LDAP architecture.

Steps

  1. Determine the Red Hat Linux™ release that is installed. The release number is stored in the /etc/redhat-release file. If you are running SUSE Linux, then the release number is in the /etc/SUSE-release file.
  2. Determine the version of OpenLDAP that is currently installed by entering the rpm -qa | grep openldap command at the Linux prompt:
    # rpm -qa |grep openldap
    openldap-2.0.27-8
    openldap-clients-2.0.27-8
    openldap-servers-2.0.27-8
    If a default Red Hat Linux installation was used, there is at least one OpenLDAP Red Hat Package Manager (RPM) installed. If you have the correct version installed, continue with Configure the OpenLDAP client. If no OpenLDAP RPMs are installed or an RPM is not a valid version, you need to install the correct version.
    The required RPMs for an LDAP server on Red Hat Linux are openldap- 2.0.xx-F, openldap-client-2.0.xx-F, and openldap-server-2.0.xx.F, where 2.0.xx-F corresponds to Table 1.
    Table 1. OpenLDAP versions
    Red Hat Linux release OpenLDAP build version
    AS2.1 2.0.21
    7.3 2.0.23
    8.0 2.0.25
    9.0 2.0.275
  3. The LDAP RPMs can either be found on the Red Hat CD or downloaded from one of the following RPM download sources:
    • www.rpmfind.net, search on openldap and select the RPM based on the distribution.
    • www.redhat.com, select Download, and then search on openldap. Other distributions might not be listed here.
    Tip: You only need to download RPMs that are not installed. For example, if you have openldap-2.0.xx and openldap-client-2.0.xx installed but not openldap-server-2.0.xx, then you only need to download the openldap-server-2.0.xx package.
  4. After downloading the RPMs to the Linux server, change to the download directory and start the installation using the rpm command.
    # rpm -ivh openldap*
    The RPMs are installed, with a hash-mark progress bar. If the RPMs are not installed due to any missing prerequisite RPMs, find the RPMs using step 3. If, however, the RPMs do not install because of missing prerequisite files or mismatched file versions, the RPM version selected is not appropriate for the Red Hat Linux installation. Investigate the specific files in conflict, and confirm which OpenLDAP RPM version matches those files.
  5. Verify that the OpenLDAP RPMs have been installed with the rpm -qa | grep openldap command at the Linux prompt.
    # rpm -qa | grep openldap
    openldap-2.0.27-8
    openldap-clients-2.0.27-8
    openldap-servers-2.0.27-8

Result

The three RPMs are installed: the base, the clients, and the servers.

Postrequisites

Continue with Configure the OpenLDAP client.

Parent topic: Configuring LDAP using OpenLDAP
Next topic: Configure the OpenLDAP client

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