Upgrade Nexus OCSP Responder on Linux

This article includes updates for Nexus OCSP Responder 6.4.0.

This article describes how to upgrade Nexus OCSP Responder on Linux.

Prerequisites

• 64-bit Java Runtime Environment (JRE) version 21 is installed.

• Upgrade to Nexus OCSP Responder 6.4.0 is only supported from version 5.x, or later.

• Create a backup for bin, certs, config, cils, crls and log contents before performing the upgrade.

Upgrade Nexus OCSP Responder

1. Unpack the Nexus OCSP Responder distribution nexus-ocsp-linux-release-6.x.zip into any desired directory.

2. Stop the Nexus OCSP service.

   CODE

   » service nexus-ocsp stop

3. In <install_root>/lib:

   1. Replace all jar files with the ones found in the lib directory in nexus-ocsp-linux-6.x.tgz in the unpacked distribution.

   2. Remove all files in this directory from previous installations.

4. In <install_root>/bin:

   1. Replace all files except nexus-ocsp.conf and nexus-ocsp-launchd.sh with the ones found in nexus-ocsp-linux-6.x.tgz.

5. If upgrading from OCSP 6.2.5 or earlier, replace the following line in nexus-ocsp.conf:

   CODE

   SERVICEARGUMENTS="-p <ocsp-config-dir>"

   with 

   CODE

   SERVICEARGUMENTS="-P <ocsp-config-dir>"

6. Remove the property "-Djava.library.path" under JAVAFLAGS option in nexus-ocsp.conf file in <install_root>/bin. 

7. Change the file owner of the new files to the service user that executes the service.
   For example:

   CODE

   chown -R ocspuser:ocspuser /opt/nexus/ocsp/

8. If not done in previous upgrade: Remove the SysV OCSP service:

   CODE

   » chkconfig --del nexus-ocsp
   » rm /etc/init.d/nexus-ocsp

9. If not done in previous upgrade: Install the systemd OCSP service by running the install.sh script (after running chmod a+x install.sh) with options -d -p -P -u -g in the unpacked distribution. Use option -h to view a description of the above options. 

To only install the nexus-ocsp.service, use the -d option.

10. Optional: Adapt the old configuration in <install root>/conf with the new functionality, described in the release note, in Nexus OCSP Responder. The reference configuration can be found in nexus-ocsp-6.x/config/ocsp.conf in nexus-ocsp-linux-6.x.tgz.

11. Optional: If Java 21 is not installed as default Java:

    1. Edit the file <install_root>/bin/nexus-ocsp.conf 

    2. Add this line at the end of the file:

       CODE

       JAVA=<path_to_bin_java_in_jre_21>

12. Start the Nexus OCSP service.

    CODE

    // Start
    » service nexus-ocsp start