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How to Install, Upgrade, and Patch Zimbra 9 Open Source Edition Build by Zextras

Zimbra 9 OSE build by Zextras is based on Zimbra’s official repositories. In this article, you will learn more about this build, installation, upgrades, updates, and patches. To learn more about Zextras decision please read Zextras Released Its Own Build of Zimbra 9 Open Source Edition.

More on Zimbra 9 OSE Build by Zextras

Since Zimbra version 9 is not natively available for download, Zextras provides users with the unofficial builds of Synacor’s Zimbra 9 open source edition under the applicable open source licenses. The Zextras build is based on the source code provided by Synacor without any significant changes.

Installation

The installation procedure is easy and very similar to a normal Zimbra installation. For more information, you can refer to How to install Zimbra on CentOS/RHEL and How to install Zimbra on Ubuntu LTS. The first thing you should do is to get the Zimbra 9 OSE from the Zextras website by entering your email address and receiving detailed instructions. However, we try to cover it briefly here.

Zimbra 9 OSE build by Zextras is supported by Ubuntu 18, CentOS 7, and CentOS 8 operating systems.

Requirements

These are the requirements suggested for this build of Zimbra 9 OSE:

  • 16 gigabytes of RAM
  • 4-core CPU or 4 vCPUs
  • 10 gigabytes of free hard disk space
  • FQDN, MX and A DNS-records
  • Set timezone and NTP

You should configure the domain name of the server using the sudo hostnamectl set-hostname mail.company.com --static command and add A and MX records using dig -t A mail.company.com and dig -t MX company.com commands.

Procedure

Zimbra 9 OSE distribution is a .tgz archive. To install it:

  • Unpack the archive as root using these commands
    • tar zxvf zcs-9.0.0_OSE_RHEL7_latest-zextras.tgz | for CentOS 7
    • tar zxvf zcs-9.0.0_OSE_RHEL8_latest-zextras.tgz | for CentOS 8
    • tar zxvf zcs-9.0.0_OSE_UBUNTU18_latest-zextras.tgz | for Ubuntu 18
  • Navigate to the folder you just unpacked
    • cd zcs-9.0.0_OSE_RHEL7_latest-zextras | for CentOS 7
    • cd zcs-9.0.0_OSE_RHEL8_latest-zextras | for CentOS 8
    • cd zcs-9.0.0_OSE_UBUNTU18_latest-zextras | for Ubuntu 18
  • Run the installation script by sudo ./install.sh command.
  • Follow the installation and configuration

The Zimbra 9 OSE web client will be available at https://mail.company.com. You can access the administrator console from https://mail.company.com:7071.

If you’re new to Zimbra and have a problem with any of the steps you can read Zimbra 9 OSE build by Zextras first time installation.

Upgrade Zimbra 8.8.15 to Zimbra 9

If you already have Zimbra 8.8.15 OSE, you can easily use the Zextras build to upgrade your mail server to Zimbra 9 OSE build by Zextras. The upgrade procedure is the same as a regular Zimbra upgrade. To do so you should do is to get the Zimbra 9 OSE from the Zextras website by entering your email address and receiving detailed instructions.

You can also read more about upgrading Zimbra on Zimbra upgrade on CentOS/RHEL and Zimbra upgrade on Ubuntu LTS.

Updating New Patches

Zimbra 9 OSE build by Zextras can be updated using official Zimbra patches. The update procedure is the same as a regular patch update. To update to a new patch you should:

  • Check for new patches,
  • Update to patches,
  • Restart Zimbra services.

For more detail, you can follow the steps below. Based on your operating system run the correct commands.

To update Zimbra 9 OSE build by Zextras to new patches using system package upgrades:

On CentOS

  • Clear the yum cache as root using
    • yum clean metadata
  • Check for updates so the server finds the new zimbra-patch packages in the patch repository using
    • yum check-update
  • Update to available Zimbra patches using
    • yum update
  • Restart Zimbra services as zimbra user:
    • su - zimbra
    • zmcontrol restart

On Ubuntu

  • Check for updates as root so the server finds the new zimbra-patch packages in the patch repository using
    • apt-get update
  • Update to available Zimbra patches using
    • apt-get upgrade
  • Restart Zimbra services as zimbra user:
    • su - zimbra
    • zmcontrol restart

and you’re done.

To learn more about upgrades and updates you can read Zimbra upgrade on CentOS/RHEL and Zimbra upgrade on Ubuntu LTS.

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Zextras Released Its Own Build of Zimbra 9 Open Source Edition
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