Chapter 47. Generating CRL on the IdM CA server

If your IdM deployment uses an embedded certificate authority (CA), you may need to move generating the Certificate Revocation List (CRL) from one Identity Management (IdM) server to another. It can be necessary, for example, when you want to migrate the server to another system.

Only one server must generate CRL. The CRL generation role is usually co-located with the IdM CA Renewal Master, but this is not mandatory. Before the CRL Generation Master is decommissioned, a new CRL Generation Master must be selected by the administrator and configured.

This chapter describes:

  • Stopping CRL generation on the IdM master.
  • Starting to generate CRL on the IdM replica.

47.1. Stopping CRL generation on an IdM server

To stop generating the Certificate Revocation List (CRL) on the IdM CRL publisher server, use the ipa-crlgen-manage command. Before you disable the generation, verify that the server really generates CRL. You can then disable it.

Prerequisites

  • Identity Management (IdM) server is installed on the RHEL 8.1 system or newer.
  • You must be logged in as root.

Procedure

  1. Check if your server is generating the CRL:

    [root@server ~]# ipa-crlgen-manage status
    CRL generation: enabled
    Last CRL update: 2019-10-31 12:00:00
    Last CRL Number: 6
    The ipa-crlgen-manage command was successful
  2. Stop generating the CRL on the server:

    [root@server ~]# ipa-crlgen-manage disable
    Stopping pki-tomcatd
    Editing /var/lib/pki/pki-tomcat/conf/ca/CS.cfg
    Starting pki-tomcatd
    Editing /etc/httpd/conf.d/ipa-pki-proxy.conf
    Restarting httpd
    CRL generation disabled on the local host. Please make sure to configure CRL generation on another master with ipa-crlgen-manage enable.
    The ipa-crlgen-manage command was successful
  3. Check if the server stopped generating CRL:

    [root@server ~]# ipa-crlgen-manage status

The server stopped generating the CRL. The next step is to enable CRL generation on the new RHEL 8 server.

47.2. Starting CRL generation on an IdM replica server

You can start generating the Certificate Revocation List (CRL) on an IdM CA server with the ipa-crlgen-manage command.

Prerequisites

  • Identity Management (IdM) server is installed on the RHEL 8.1 system or newer.
  • The RHEL system must be an IdM Certificate Authority server.
  • You must be logged in as root.

Procedure

  1. Start generating the CRL:

    [root@replica1 ~]# ipa-crlgen-manage enable
    Stopping pki-tomcatd
    Editing /var/lib/pki/pki-tomcat/conf/ca/CS.cfg
    Starting pki-tomcatd
    Editing /etc/httpd/conf.d/ipa-pki-proxy.conf
    Restarting httpd
    Forcing CRL update
    CRL generation enabled on the local host. Please make sure to have only a single CRL generation master.
    The ipa-crlgen-manage command was successful
  2. Check if the CRL is generated:

    [root@replica1 ~]# ipa-crlgen-manage status
    CRL generation: enabled
    Last CRL update: 2019-10-31 12:10:00
    Last CRL Number: 7
    The ipa-crlgen-manage command was successful