ZCS Single Server Quick Start, Open Source 5.0

Zimbra™ Collaboration Suite Single Server Installation - Open Source

Important Notice About Single Server Installations

Installation Prerequisites

Modifying Operating System Configurations

Configure DNS

Overview of Installation Process

Downloading the Zimbra Software

Basic Configuration

Installing Zimbra Software

Provisioning Accounts

Uninstalling Zimbra Collaboration Suite

Additional Information

Support and Contact Information

The Zimbra Collaboration Suite includes the Zimbra MTA, the Zimbra LDAP server, and the Zimbra mailbox server. In a single-server installation, all components are installed on one server and require no additional manual configuration.

This installation guide is a quick start guide that describes the basic steps needed to install and configure the Zimbra Collaboration Suite in a direct network connect environment. In this environment, the Zimbra server is assigned a domain for which it receives mail, and a direct network connection to the Internet. When the Zimbra Collaboration Suite is installed, you will be able to log on to the Zimbra administration console to manage the domain and provision accounts. The accounts you create will be able to send and receive external email.

This guide includes the following sections:

•	Important Notice About Single Server Installations

•	Installation Prerequisites

•	Configure DNS

•	Overview of Installation Process

•	Downloading the Zimbra Software

•	Basic Configuration

•	Installing Zimbra Software

•	Provisioning Accounts

•	Support and Contact Information

Important Notice About Single Server Installations

The Zimbra Collaboration Suite is designed to be the only application suite installed on the server. The Zimbra Collaboration Suite bundles and installs, as part of the installation process various other third party and open source software, including Apache Jetty, Postfix, OpenLDAP®, and MySQL®. The versions installed have been tested and configured to work with the Zimbra software. See the   Administration Guide for a complete list of software.

Table 1 shows that default port settings when the Zimbra Collaboration Suite is installed.

 

Table 1 Zimbra Port Mapping

	Port
Remote Queue Manager	22
Postfix	25
HTTP	80
POP3	110
IMAP	143
LDAP	389
HTTPS	443
Mailboxd IMAP SSL	993
Mailboxd POP SSL	995
Mailboxd LMTP	7025

Important: You cannot have any other web server, database, LDAP, or MTA server running, when you install the Zimbra software. If you have installed any of the applications, before you install Zimbra software, disable these applications. During the ZCS install, Zimbra makes global system changes that may break applications that are on your server.

Installation Prerequisites

In order to successfully install and run the Zimbra Collaboration Suite, ensure your system meets the requirements described in this section. System administrators should be familiar with installing and managing email systems.

System Requirements

For the ZCS system requirements see System Requirements for Zimbra Collaboration Suite 5.0

Note: To find SSH client software, go to Download.com at http://www.download.com/ and search for SSH. The list displays software that can be purchased or downloaded for free. An example of a free SSH client software is PuTTY, a software implementation of SSH for Win32 and Unix platforms.    To download a copy go to  http:// putty.nl/.

Modifying Operating System Configurations

Configuration modifications for two of the most frequently used operating systems, Red Hat Enterprise Linux and Fedora, are described in this guide. The SUSE configuration would be similar to those described for the Red Hat Enterprise Linux. The Mac OS requires no additional modifications.

Other operating systems may require similar modifications, use this information as a reference to gauge whether your operating system may need to be modified. Also, search the Zimbra Forums and Zimbra Wiki.

Important: Zimbra recommends that the operating systems you use is updated with the latest patches that have been tested with ZCS. See the latest release notes to see the operating systems patch list that has been tested with ZCS.

Installation Modifications for Red Hat® Enterprise Linux®

The Zimbra Collaboration Suite runs on the Red Hat Enterprise Linux, version 4 operating system. When you install the Red Hat software for the Zimbra Collaboration Suite, accept the default setup answers, except for the Disk Partition Setup, the Network Configuration, the Gateway and Primary DNS addresses, the Edit Interface, and the Firewall Configuration. Details of what should be modified in these categories are listed below. Refer to the Red Hat Enterprise Linux installation guide for detailed documentation about installing their software.

Important:  

•	Disk Partitioning Setup. Check Manually partition with DiskDruid. The disk partition should be set up as follows:

•	The Mount Point/RAID Volume size for the Boot partition (/)should be 100 MB.

•	The Swap partition should be set to twice the size of the RAM on your machine.

•	The Root partition (/) should be set with the remaining disk space size.

 

•	Network Configuration>Network Devices>Hostname should be configured manually with the fully qualified hostname [mailhost.example.com] of the Zimbra server.

 

•	Enter the Gateway and Primary DNS addresses.

•	In the Edit Interface pop-up screen, check Activate on Boot. Enter the IP Address and Netmask of the device. This allows the interface to start when you boot.

•	Firewall Configuration should be set to No firewall, and the Security Enhanced Linux (SELinux) should be disabled.

Important: You will need to disable Sendmail in order to run the Zimbra Collaboration Suite. You can disable the Sendmail service with these commands: chkconfig sendmail off, service sendmail stop.

Important: Make sure that FQDN entry in /etc/hosts appears before the hostnames. If this is missing, the creation of the Zimbra certificate fails. The FQDN entry should look like this example. See zmcreatecert in the Administrator’s Guide, Appendix A: Command-Line Utilities.

 

127.0.0.1           localhost.localdomain localhost your.ip.address         FQDN yourhostname

Installation Modifications for Fedora™

The Zimbra Collaboration Suite runs on the Fedora, Core 4 operating system. When you install the Fedora software for the Zimbra Collaboration Suite, accept the default setup answers, except for the Disk Partition Setup, the Network Configuration, the Gateway and Primary DNS addresses, the Edit Interface, and the Firewall Configuration. Details of what should be modified in these categories are listed below. Refer to the Fedora installation guide for detailed documentation about installing their software.

•	Disk Partitioning Setup. Check Manually partition with DiskDruid. The disk partition should be set up as follows:

•	The Mount Point/RAID Volume size for the Boot partition (/) should be 100 MB.

•	The Swap partition should be set to twice the size of the RAM on your machine.

•	The Root partition (/) should be set with the remaining disk space size.

•	Network Configuration>Network Devices>Hostname should be configured manually with the hostname name [mailhost.example.com] of the Zimbra server.

•	Enter the Gateway and Primary DNS addresses.

•	In the Edit Interface pop-up screen, check Activate on Boot. Enter the IP Address and Netmask of the device. This allows the interface to start when you boot.

•	Firewall Configuration should be set to No firewall, and the Security Enhanced Linux (SELinux) should be disabled.

Important: The following should also be considered before you install the Zimbra Collaboration Suite:

•

You must disable Sendmail in order to run the Zimbra Collaboration Suite application. The Sendmail command to stop the service is /etc/init.d/sendmail stop. To disable is chkconfig sendmail off. The Postfix command to stop the service is /etc/init.d/postfix stop. To disable is chkconfig postfix stop.

•	Make sure that FQDN entry in /etc/hosts appear before the hostnames. If this is missing, the creation of the Zimbra certificate fails. The FQDN entry should look like this example.

 

127.0.0.1           localhost.localdomain localhost your.ip.address         FQDN yourhostname

Installation Modifications for Mac OS® Servers

No modifications are required for Mac OS servers, but Java 1.5 must be set as the default Java.

To set Java 1.5 as the default:

•

su - root

•	cd /System/Library/Frameworks/JavaVM.Framework/Versions

•	rm CurrentJDK

•	ln -s 1.5.0 CurrentJDK

Configure DNS

In order to send and receive email, the Zimbra MTA must be configured in DNS with both A and MX records. For sending mail, the MTA uses DNS to resolve hostnames and email-routing information. To receive mail the MX record must be configured correctly to route the message to the mail server.

During the installation process ZCS checks to see if you have an MX record correctly configured. If it is not, an error is displayed suggesting that the domain name have an MX record configured in DNS.

You must configure a relay host if you do not enable DNS. After ZCS is installed, go to the Global Settings>MTA tab on the administration console and uncheck Enable DNS lookups. Enter the relay MTA address to use for external delivery.

Note: Even if a relay host is configured, an MX record is still required if the ZCS server is going to receive email from the Internet.

Overview of Installation Process

When you run the install script, the Zimbra install verifies that the correct prerequisite packages are available to be installed.

•	Zimbra Core installs the libraries, utilities, and monitoring tools.

•	Zimbra LDAP installs the OpenLDAP software, which provides open source LDAP directory services.

•	Zimbra MTA installs the Postfix open source MTA, the Clam AntiVirus antivirus engine, the SpamAssassin junk mail filter, and the Amavisd-New content filter.

•	Zimbra Store installs the mailbox server, including Jetty, the servlet container for the Zimbra server.

•	Zimbra Spell installs the Aspell open source spelling checker. When Zimbra spell is installed, Zimbra-Apache is also installed.

•	Zimbra SNMP installs the SNMP package for monitoring. This package is optional.

•	Zimbra Logger installs tools for syslog aggregation, reporting, and message tracing. If you do not install Logger, you cannot use the message trace feature, the server statistics are not captures, and the server statistics section of the administration console does not display.

•	Zimbra Proxy installs the proxy feature. Using an IMAP/POP proxy server allows mail retrieval for a domain to be split across multiple Zimbra servers on a per user basis.

The Zimbra server configuration is menu driven. The installation menu shows you the default configuration values. The menu displays the logical host name and email domain name [mailhost.example.com] as configured on the computer. You can change any of the values. For single server installs, you must define the administrator’s password, which you use to log on to the administration console, and you specify the location of the Zimbra license xml file.

Downloading the Zimbra Software

For the latest Zimbra software download, go to www.zimbra.com. Save the Zimbra Collaboration Suite archive file to the computer from which you will install the software.

Basic Configuration

The default configuration installs the Zimbra-LDAP, the Zimbra-MTA with anti-virus and anti-spam protection, the Zimbra mailbox server, the SNMP monitoring tools (optional), Zimbra-spell (optional), the logger tool (optional), and the Zimbra proxy (optional) on one server.

The menu driven installation displays the components and their existing default values. The During the installation process you can modify the information.

The table below describes the menu options

Table 2 Main Menu Options

Main Menu	Description
1) Common Configuration - These are common settings for all servers
Hostname	The host name configured in the operating system installation
LDAP master host	The LDAP host name. On a single server installation, this name is the same as the hostname.
LDAP port	The default port is 389
LDAP Admin password	This is the master LDAP password.
TimeZone	Select the time zone to apply to the default COS. The time zone that should be entered is the time zone that the majority of users in the COS will be located in. The default time zone is PST (Pacific Time).
2) zimbra-ldap
Create Domain	You can create one domain during installation and additional domains can be created from the administration console.
Domain to create	The default domain is the fully qualified hostname of the server. If you created a valid mail domain on your DNS server, enter it now. In most cases, you will accept the default.
LDAP Root password	The root LDAP password for internal LDAP operations.
LDAP Replication password	This is the password used by the LDAP replication user to identify itself to the LDAP master and must be the same as the password on the LDAP master server.
LDAP Postfix password	This is the password used by the postfix user to identify itself to the LDAP server and must be configured on the MTA server to be the same as the password on the LDAP master server.
LDAP Amavis password	This is the password used by the amavis user to identify itself to the LDAP server and must be configured on the MTA server to be the same as the password on the LDAP server.
3) zimbra-store
Create Admin User	The administrator account is created during installation. This account is the first account provisioned on the Zimbra server and allows you to log on to the administration console.
Admin user to create	The default is admin@[mailhost.example.com].
Admin Password	You must set the admin account password. The password is case sensitive and must be a minimum of six characters. The administrator name, mail address, and password are required to log in to the administration console.
Enable automated spam training	By default, the automated spam training filter is enabled and two mail accounts are created. 1. Spam Training User to receive mail notification about mail that was not marked as junk, but should have been. 2. Non-spam (HAM) Training User to receive mail notification about mail that was marked as junk, but should not have been. These addresses are automatically configured to work with the spam training filter. The accounts created have a randomly selected name. To recognize what the account is used for you may want to change this name.
Global Documents Account	The Global Documents account is automatically created when ZCS is installed. The Global Documents account holds the templates and the default Documents Notebook. The Documents feature is enabled from the COS or for individual accounts
The default port configurations are shown	• SMTP host • Web server HTTP port: 80 • Web server HTTPS port: 443 • Web server mode — Can be HTTP, HTTPS, mixed, or redirect. Mixed mode uses HTTPS for logging in and HTTP for normal session traffic. Redirect mode redirects any users connecting via HTTP to a HTTPS connection. All modes use SSL encryption for back-end administrative traffic. Note: Selecting both will set it to mixed. • IMAP server port: 143 • IMAP server SSL port: 993 • POP server port: 110 • POP server SSL port: 995 • Use spell checker server, default Yes (if installed) • Spell server URL: http://<example.com>:7780/aspell.php
5) Zimbra-MTA
	• MTA Auth host — This is configured automatically if the MTA authentication server host is on the same server, but must be configured if the authentication server is not on the MTA. • Enable Spamassassin — Default is enabled. • Enable ClamAV — Default is enabled. • Notification address for AV alerts — Sets the notification address for AV alerts. You can either accept the default or create a new address. If you create a new address, remember to provision this address from the admin console. Note: If the virus notification address does not exist and your host name is the same as the domain name on the Zimbra server, the virus notifications queue in the Zimbra MTA server and cannot be delivered. • Bind password for Postfix LDAP user. Automatically set.This is the password used by the postfix user to identify itself to the LDAP server and must be configured on the MTA server to be the same as the password on the LDAP master server. • Bind password for Amavis LDAP user. Automatically set. This is the password used by the amavis user to identify itself to the LDAP server and must be configured on the MTA server to be the same as the password on the LDAP server.
5) zimbra-snmp (optional)
	• Enable SNMP notifications — The default is Yes. • SNMP Trap hostname • Enable SMTP notification — The default is Yes. • SMTP Source email address • SMTP Destination email address
6) zimbra-logger	When installed, it is automatically enabled. This information is used to generate the statistics graphs and is used for message tracing.
7) zimbra-spell	(optional) When installed, it is automatically enabled.
8) Default Class of Service Configuration: This menu lists major new features for the ZCS release and whether the feature is enabled or not. When you change the feature setting during ZCS installation, you change the default COS settings.
r) Start servers after configuration	When the installation and configuration is complete, if this is set to Yes, the Zimbra server is automatically started.
s) Save config to file	At any time during the installation, you can save the configuration to file.
q) Quit	Quit can be used at any time to quit the installation.

Installing Zimbra Software

For servers other than Mac servers, open an SSH session to the Zimbra server and follow the steps below.

For Macs, see “Installing Zimbra Software on a Mac Server” .

1.	Log in as root to the Zimbra server and cd to the directory where the Zimbra Collaboration Suite archive tar file is saved (cd /var/<tmp>). Type the following commands:

•	tar xzvf [zcsfullfilename.tgz], to unpack the file

•	cd [zcsfullfilename] to change to the correct directory.

•	./install.sh, to begin the installation

The install.sh script reviews the installation software to verify that the Zimbra packages are available.

 

[root@mailhost tmp]# tar xzvf zcs.tgz zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/ zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/packages/ zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/packages/zimbra-logger-5.0.0_1707.RHEL4-200 . . zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/packages/zimbra-ldap-5.0.0_1707.RHEL4-20071     105201315.i386.rpm zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/data/ zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/data/backup-version-init.sql zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/data/versions-init.sql zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/bin/ zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/bin/checkValidBackup zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/bin/zmdbintegrityreport zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/bin/get_plat_tag.sh zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/readme_binary.txt . . . zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/util/addUser.sh [root@infodev tmp]# cd zcs-NETWORK-5.0.0_1707.RHEL4.20071105201315/ [root@infodev zcs-NETWORK-5.0.0_RC3_1707.RHEL4.20071105201315]# ./install.sh -l   Operations logged to /tmp/install.log.4747 Checking for existing installation... zimbra-ldap...NOT FOUND zimbra-logger...NOT FOUND zimbra-mta...NOT FOUND zimbra-snmp...NOT FOUND zimbra-store...NOT FOUND zimbra-apache...NOT FOUND zimbra-spell...NOT FOUND zimbra-proxy...NOT FOUND     zimbra-core...NOT FOUND

Screenshots included in this guide are examples of the Zimbra installation script

2.

The installation process checks to see if Sendmail, Postfix, and MySQL software are running. If any of these applications is running, you are asked to disable them. Disabling MySQL is optional but highly recommended. Sendmail and Postfix must be disabled for the Zimbra Collaboration Suite to start correctly.

3.	The Zimbra software agreement is displayed and includes the link to the license terms for the Zimbra Collaboration Suite. Please read the agreement and, to continue, press Enter.

 

PLEASE READ THIS AGREEMENT CAREFULLY BEFORE USING THE SOFTWARE. ZIMBRA, INC. ("ZIMBRA") WILL ONLY LICENSE THIS SOFTWARE TO YOU IF YOU FIRST ACCEPT THE TERMS OF THIS AGREEMENT. BY DOWNLOADING OR INSTALLING THE SOFTWARE, OR USING THE PRODUCT, YOU ARE CONSENTING TO BE BOUND BY THIS AGREEMENT. IF YOU DO NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, THEN DO NOT DOWNLOAD, INSTALL OR USE THE PRODUCT.     License Terms for the Zimbra Collaboration Suite: http://www.zimbra.com/license/zimbra_network_eval_license.pdf   Press Return to continue checking for prerequisites... NPTL...FOUND sudo...FOUND sudo-1.6.7p5-30.1.3 libidn...FOUND libidn-0.5.6-1 curl...FOUND curl-7.12.1-8 fetchmail...FOUND fetchmail-6.2.5-6 gmp...FOUND gmp-4.1.4-3 compat-libstdc++-296...FOUND compat-libstdc++-296-2.96-132.7.2 compat-libstdc++-33...FOUND compat-libstdc++-33-3.2.3-47.3 libtool-libs...FOUND libtool-libs-1.5.6-4 /usr/lib/libstdc++.so.5...FOUND   Checking for installable packages

4.	Next, the installer checks to see that the prerequisite software is installed. If NPTL, sudo, libidn, cURL, fetchmail, GMP, or compat-libstdc++-, liptool-libs are not installed, the install process stops. You must fix the problem and start the installation over.

5.	Select the services to be installed on this server. To install Zimbra Collaboration Suite on a single server, enter Y for the ldap, logger, mta, snmp, store, and spell packages. If you use IMAP/POP Proxy, enter Y for the Zimbra proxy package.

6.	Type Y and press Enter to modify the system. The selected packages are installed on the server.