In the picture above, there are several types of OS that can be used to install Zimbra Ubuntu, specifically for this discussion, we use Ubuntu 18.04 LTS, so choose the Ubuntu 18.04 LSTS platform
or you can also use the wget command at the download url of the zimbra packet, as below
wget https://files.zimbra.com/downloads/8.8.15_GA/zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220.tgz
Wait a few moments until the download is complete, and if you have extracted the zimbra file that has been downloaded in the .tgz format
Use the following command to extract the zimbra file that has been downloaded tdi
tar -xvf zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220.tgz
If it has been successfully extracted, then move to the zimbra folder:
cd zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220
Step 6: Install Zimbra Collaboration on
After the download is successful and the file has been extracted, the next step is to install Zimbra Collaboration.
Inside the extracted zimbra folder, there is a file with the extension .sh (.install.sh). Run the Script file path.
Run the installer script.
sudo ./install.sh

When Zimbra gives a notification of the Software License agreement, select “Y” and do the same on Zimbra’s package repository Installation.
If there is an error like the one below:

Follow the following command
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 9BE6ED79
And run ./Install.sh again
sudo ./install.sh
After that zimbra will continue the installation.
In the packages installation, select “Y” for each package except for the “zimbra-imapd” package. We do not use these packages because the version is still in Beta.

When finished, the system notification will be changed, select YES”
The system will be modified. Continue? [N] y
and Installation will start. The installation process will take a few minutes, wait for it to finish, do not restart or shut down your server.
After the installation is complete, we will be asked to configure some menus
1. Menu DNS Cache

Select 5 which is “zimbra-dnscache” , then select 2 “Master DNS IP address(es)”
Fill it with google dns which is 8.8.8.8

Then type “r” to go back
2. Menu Password Admin
Press 7 to add Admin Password
Address unconfigured (**) items (? – help) 7

Then now to create an Admin Password, press “4”. We will be asked to set the admin password. Type the Password which must contain 6 Characters.
Select, or ‘r’ for previous menu [r] 4

Then enter Password

After typing the password, enter Enter and press the ‘r’ key on the keyboard to return to the Main Menu
Select, or ‘r’ for previous menu [r]
Now to save the completed configuration but press the ‘a’ key on the keyboard.
Select from menu, or press ‘a’ to apply config (? – help) a
And there will be a notification to save the configuration that has been made, Type ‘Yes’

Save configuration data to a file? [Yes] Yes
The system will be modified – continue? [No] Yes
Then Enter and wait for Zimbra to complete the configuration that was made earlier.
Followed by the message Notify Zimbra of your installation? [Yes], then select No
Notify Zimbra of your installation? [Yes] Yes
Notifying Zimbra of installation via http://www.zimbra.com/cgi-bin/notify.cgi?VER=8.8.15_GA_3869_UBUNTU18_64&[email protected]
Step 7 : Access Zimbra Dashaboard Admin
Now we are done installing Zimbra Ubuntu, and we can access the zimbra dashboard, if on linux there is a firewall, so that the firewall is disabled first, until the zimbra configuration is completely completed
Open a web browser and type
atau
The Zimbra Admin default page will appear, Enter the Username and Password, Enter the username and password for the one that was set in the previous step.

We have practiced how to install Zimbra on Ubuntu 18.04 and it has worked, so for those of you who want to try or have problems, you can contact us again.
Thank you for following this Tutorial How to Install Zimbra on Ubuntu 18.04, hopefully it will be useful and can be a lesson for all of us and can share knowledge with others.