This howto is a step-by-step guide on installing the Zimbra Collaboration Suite (ZCS) on Centos 5.4 64bit. Zimbra is an open source collaboration suite. It consists of the following: email, group calendaring, contacts, web document management and authoring. It is fully compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server as well as to many mobile devices. But all of those features fully work only with Zimbra Network Edition.
It's usually good idea to virtualize your servers - so we will install Zimbra MTA on a Virtual Machine where the quest operating system is going to be CentOS 5.4 64 bit sitting on top of VmWare ESXi 4.0. This will make your installation fully hardware independent thus allowing for migration to more capable hardware in the feature.
I also decided to explain how to configure your DNS in order for your MTA to be visible from the outside world. I noticed that most authors of the tutorials don't do that. I'm using http://atrianetworks.com/ as my ISP and http://ccjclearline.com/ to manage my domains and DNS records plus BIND as my internal DNS.
Lets assume the following:
INTERNAL IP (The IP of your VM): 10.20.0.26
EXTERNAL IP :226.111.111.111
IP OF YOUR INTERNAL DNS/DHCP SERVER: 10.20.0.10
########################################
CREATE A VM (ESXi 4.0)
########################################
* Create a VM with the following settings:
HD: 100GB thin provisioning.
RAM: 4096
Version: Red Hat Enterprise Linux 5 (64bit)
* Install Centos 5.4 x86_64
########################################
INSTALL VMWARE-TOOLS INSIDE YOUR GUEST OS
########################################
yum install gcc gcc-c++ kernel-devel
---------------------------------------------------------------
NOW RIGHT CLICK YOUR VM >> GUEST >> INSTALL VMWARE TOOLS
---------------------------------------------------------------
mkdir /usr/src/linux
ln -s /usr/src/kernels/2.6.18-164.15.1.el5-x86_64 /usr/src/linux
mkdir /mnt/cdrom
mount /dev/cdrom /mnt/cdrom
cp /mnt/cdrom/VMwareTools-4.0.0-171294.tar.gz /tmp/
umount /mnt/cdrom
cd /tmp
tar -xvf VMwareTools-4.0.0-171294.tar.gz
cd vmware-tools-distrib
./vmware-install.pl
reboot
At his moment people usually jump straight to Zimbra installation which is a mistake. First you need to configure the DNS entries in several places. Otherwise your installation will fail and/or your Zimbra will not be visible from outside the world. As I've already said above - I'm using ccjclearline to manage my domains and DNS antries, the general process though should be fairly similar with any provider.
########################################
DNS CONFIG (EXTERNAL)
########################################
https://ccjclearline.managednsservice.com/
login: yourlogin
pass:yourpass
Find yourdomain.com and hit "zone management" button.
Add A record: HOSTNAME: mail.yourdomain.com IP Address: 226.111.111.111
Add A record: HOSTNAME: yourdomain.com IP Address: 226.111.111.111
Add MX record: HOSTNAME: mail.yourdomain.com Mail Exchange: mail.yourdomain.com. Preference: 10
Hit "Update zone preferences" button.
########################################
FIREWALL Config
########################################
Create NAT rules
Source: 10.20.0.26
Interface: outside
Use IP address:226.111.111.111
Enable Port Address Translation TCP Original Port: smtp Translated Port: smtp
Add similiar rules for: imap4 , http nad and 993
Permit tcp/smtp from 10.20.0.26 to ANY !!!
It might be that you will not need to perform the next step - It highly depends on your particular setup - I had to do it though.
########################################
DNS CONFIG (ISP)
########################################
Send a message to : support@atrianetworks.com with the following body:
Can you please add a reverse DNS entry for 226.111.111.111 to mail.yourdomain.com ?
########################################
DNS CONFIG (INTERNAL - BIND)
########################################
Ssh to 10.20.0.10
vim /etc/bind/yourdomain.com.internal.zone
########################################
$ORIGIN .
$TTL 86400 ; 1 day
yourdomain.com IN SOA ns1.yourdomain.com. admin\@yourdomain.com. (
2010012205 ; serial
10800 ; refresh (3 hours)
15 ; retry (15 seconds)
604800 ; expire (1 week)
10800 ; minimum (3 hours)
)
NS ns1.yourdomain.com.
NS ns2.yourdomain.com.
$ORIGIN yourdomain.com.
IN MX 10 mail.yourdomain.com.
IN A 10.20.0.26
mail IN A 10.20.0.26
########################################
vim /etc/bind/named.conf.local
########################################
zone "yourdomain.com" {
type master;
file "/etc/bind/yourdomain.com.internal.zone";
allow-update { key DHCP_UPDATER; };
allow-query { internal_networks; };
allow-transfer { internal_networks; };
notify yes;
};
########################################
rndc reload & tail -f /var/log/daemon.log
nslookup mail.yourdomain.com
you should get:
...
Name: mail.yourdomain.com
Address: 10.20.0.26
On 10.20.0.26 (your Zimbra VM) do: vim /etc/hosts
########################################
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
10.20.0.26 mail.yourdomain.com mta002
########################################
rndc thaw #on the DNS - 10.20.0.10 rndc thaw. This command allows the changes to be reloaded and the zone to participate in dynamic updates.
tail -f /var/log/daemon.log /var/log/named-auth.info /var/log/update-debug.log |grep 10.20.0.26
########################################
DHCP CONFIG (on 10.20.0.10)
########################################
vim /etc/dhcp3/dhcpd.conf
host mta002 {
hardware ethernet 00:0C:29:C8:C8:C8;
option host-name "mta002";
option domain-name "yourdomain.com";
ddns-hostname "mta002";
ddns-domainname "yourdomain.com";
ddns-rev-domainname "0.20.10.in-addr.arpa";
fixed-address 10.20.0.26;
}
Only after all the above steps you can now move to install Zimbra.
########################################
ZIMBRA INSTALLATION
########################################
chkconfig sendmail off
chkconfig ip6tables off
chkconfig iptables off
yum install libtool-ltdl
yum install gmp
yum install compat-libstdc++-33
yum update
yum install openssh-server
wget http://h.yimg.com/lo/downloads/6.0.4_GA/zcs-6.0.4_GA_2038.RHEL5_64.20091214192925.tgz
tar xvfz zcs-6.0.4_GA_2038.RHEL5_64.20091214192925.tgz
cd /tmp/zcs-6.0.4_GA_2038.RHEL5_64.20091214192925
./install.sh --platform-override
Select the packages to install
Install zimbra-ldap [Y] y
Install zimbra-logger [Y] y
Install zimbra-mta [Y] y
Install zimbra-snmp [Y] y
Install zimbra-store [Y] y
Install zimbra-apache [Y] y
Install zimbra-spell [Y] y
Install zimbra-memcached [N] y
Install zimbra-proxy [N] y
########################################
Main menu
1) Common Configuration:
2) zimbra-ldap: Enabled
3) zimbra-store: Enabled
+Create Admin User: yes
+Admin user to create: admin@mail.yourdomain.com
******* +Admin Password UNSET
+Enable automated spam training: yes
+Spam training user: spam.fd9i2srv_@mail.yourdomain.com
+Non-spam(Ham) training user: ham.m6eg4zfo@mail.yourdomain.com
+Global Documents Account: wiki@mail.yourdomain.com
+SMTP host: mail.yourdomain.com
+Web server HTTP port: 80
+Web server HTTPS port: 443
+Web server mode: http
+IMAP server port: 7143
+IMAP server SSL port: 7993
+POP server port: 7110
+POP server SSL port: 7995
+Use spell check server: yes
+Spell server URL: http://mail.yourdomain.com:7780/aspell.php
+Enable version update checks: TRUE
+Enable version update notifications: TRUE
+Version update notification email: admin@mail.yourdomain.com
+Version update source email: admin@mail.yourdomain.com
4) zimbra-mta: Enabled
5) zimbra-snmp: Enabled
6) zimbra-logger: Enabled
7) zimbra-spell: Enabled
8) zimbra-proxy: Enabled
9) Default Class of Service Configuration:
r) Start servers after configuration yes
s) Save config to file
x) Expand menu
q) Quit
Address unconfigured (**) items (? - help)
########################################
Hit 3 and Enter
Hit 4 and Enter
Hit r
Hit s
https://10.20.0.26:7071/zimbraAdmin/
https://10.20.0.26:7071
Log in to https://10.20.0.26:7071/zimbraAdmin/ and add domain:
Domain name: yourdomain.com
Public service host name: yourdomain.com
Inbound SMTP host name:: mail.yourdomain.com
You are done. Your server should be available from both - internal and external network.
Add some users, run some test and enjoy :)
