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Table of Contents

1 Red Hat Enterprise Linux

1 Red Hat Enterprise Linux

Overview

This section provides instructions on upgrading from ��Ĳ� 7.2.x to the latest version of ��Ĳ� 7.4.x using official ��Ĳ� packages for Red Hat Enterprise Linux or its derivatives - AlmaLinux, CentOS Stream, Oracle Linux, and Rocky Linux.

Before upgrading, please review the relevant upgrade notes and ensure that your system meets the requirements for ��Ĳ� 7.4.

Consider running two parallel SSH sessions during the upgrade: one for executing the upgrade steps and another for monitoring server/proxy logs. For example, run tail -f zabbix_server.log or tail -f zabbix_proxy.log in the second session to view the latest log entries and possible errors in real time. This can be critical for production instances.

For instructions on upgrading between ��Ĳ� 7.4.x minor versions (for example, from 7.4.1 to 7.4.3), see Upgrade between minor versions.

Upgrade procedure

1 Stop ��Ĳ� processes

Stop ��Ĳ� server to make sure that no new data is inserted into database:

systemctl stop zabbix-server

If upgrading ��Ĳ� proxy, agent, or agent 2, stop these components too:

systemctl stop zabbix-proxy
       systemctl stop zabbix-agent
       systemctl stop zabbix-agent2

2 Back up ��Ĳ� database

Back up your existing ��Ĳ� database to safeguard against upgrade failures (for example, disk space issues, power loss, or unexpected problems).

3 Back up ��Ĳ� configuration files, PHP files, and ��Ĳ� binaries

Back up existing ��Ĳ� configuration files, PHP files, and ��Ĳ� binaries.

For configuration files, run:

mkdir /opt/zabbix-backup/
       cp /etc/zabbix/zabbix_server.conf /opt/zabbix-backup/
       cp /etc/httpd/conf.d/zabbix.conf  /opt/zabbix-backup/

For PHP files and ��Ĳ� binaries, run:

cp -R /usr/share/zabbix/ /opt/zabbix-backup/
       cp -R /usr/share/zabbix-* /opt/zabbix-backup/

4 Update repository configuration package

Before proceeding with the upgrade, update your current repository package to the latest version to ensure compatibility with the newest packages and to include any recent security patches or bug fixes.

On RHEL 9, run:

rpm -Uvh https://repo.zabbix.com/zabbix/7.4/release/rhel/9/noarch/zabbix-release-latest.el9.noarch.rpm

On RHEL 8, run:

rpm -Uvh https://repo.zabbix.com/zabbix/7.4/release/rhel/8/noarch/zabbix-release-latest.el8.noarch.rpm

For older RHEL versions or its derivatives, replace the link above with the correct one from the . Note, however, that packages for these versions may not include all ��Ĳ� components, and to upgrade those components from packages, consider upgrading your OS. For a list of components included, see ��Ĳ� packages.

Then, clean up the dnf package manager's cache (including headers, metadata, and package files downloaded during previous installations or updates):

dnf clean all

On the next dnf operation, dnf will download fresh metadata from the repositories since the old metadata is cleared.

See also: Known issues for updating the repository configuration package on RHEL.

5 Upgrade ��Ĳ� components

To upgrade ��Ĳ� components, run:

dnf install zabbix-server-mysql zabbix-web-mysql zabbix-agent

If using PostgreSQL, replace mysql with pgsql in the command.
If upgrading the proxy, replace server with proxy in the command.
If upgrading the agent 2, replace zabbix-agent with zabbix-agent2 zabbix-agent2-plugin-* in the command.

Upgrading ��Ĳ� agent 2 with the dnf install zabbix-agent2 command could lead to an error. For more information, see Known issues.

Then, to upgrade ��Ĳ� frontend with Apache and restart Apache, run:

dnf install zabbix-apache-conf
       systemctl restart httpd

6 Review component configuration parameters

Review the relevant upgrade notes to check if any changes in the configuration parameters are necessary.

For new optional parameters, see the What's new page.

7 Start ��Ĳ� processes

Start the upgraded ��Ĳ� components:

systemctl start zabbix-server
       systemctl start zabbix-proxy
       systemctl start zabbix-agent
       systemctl start zabbix-agent2

8 Clear web browser cookies and cache

After the upgrade, you may need to clear web browser cookies and web browser cache for the ��Ĳ� web interface to work properly.

Upgrade between minor versions

It is possible to upgrade between ��Ĳ� 7.4.x minor versions (for example, from 7.4.1 to 7.4.3).

To upgrade all ��Ĳ� components, run:

dnf upgrade 'zabbix-*'

To upgrade ��Ĳ� server only, replace 'zabbix-*' with 'zabbix-server-*' in the command.
To upgrade ��Ĳ� proxy only, replace 'zabbix-*' with 'zabbix-proxy-*' in the command.
To upgrade ��Ĳ� agent only, replace 'zabbix-*' with 'zabbix-agent-*' in the command.
To upgrade ��Ĳ� agent 2 only, replace 'zabbix-*' with 'zabbix-agent2-*' in the command.

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