Zimbra is an easy to use piece of unified collaboration software. Being one of the best free, open source collaboration software available, Zimbra includes email, calendaring, file sharing, activity streams, social communities and much more! Zimbra comes in two different forms: a free open source edition and a paid version.

Preparing CentOS For Use With Zimbra

First we need to ensure that CentOS is up to date. Therefore, we'll run the following command:

yum update -y

Next, we need to install some pre-requisites. Since there are 12 different applications reuired to install Zimbra, we can handle the installtion in one single command :

yum install -y gmp libidn wget nano make nc sudo sysstat libtool-ltdl glibc perl ntp unzip

Next, we'll need to install check if postfix is running - if it is, disable it. Since we cannot gave two different mail transfer agents running, postfix must go.

service postfix status

If postfix is running, we'll need to disabled it:

service postfix stop && chkconfig postfix off

Obtaining A Copy of Zimbra

Next, we'll need to visit the following URL to get a download link for the latest version of Zimbra. The version being used in this article 8.5.0 GA Release. To find latest version of the software, simply head over to the Zimbra Website.

Once there, you'll need to copy the link for the Red Had and CentOS install file by right clicking and copying the link. Keep the link handy, you'll need it nex.

And then fetch the file from the Zimbra website. You can use wget to achieve this. Obviously, you’ll need to place the URL you copied earlier into this command rather than using the link here.

wget http://files2.zimbra.com/downloads/8.5.0_GA/zcs-8.5.0_GA_3042.RHEL6_64.20140828192005.tgz

Next, enter that directory:

cd zcs-8.5.0_GA_3042.RHEL6_64.20140828192005

This will download the file from the Zimbra website, saving it into the zcsinstall folder we created.

And then install with this command.

./install.sh

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