Instal Zimbra on CentOS

Required:
Hardware: Sure 1024MB memory of RAM
At least 5GB free disk for /opt


Install DNS service:
vim /etc/hosts

192.168.81.150           server.hbn.local server
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6

yum install bind-chroot
chmod 755 -R /var/named/
cp /usr/share/doc/bind-9.3.6/sample/var/named/named.local /var/named/chroot/var/named/
cp /usr/share/doc/bind-9.3.6/sample/var/named/named.root /var/named/chroot/var/named/
cp /usr/share/doc/bind-9.3.6/sample/var/named/localhost.zone /var/named/chroot/var/named/
touch /var/named/chroot/etc/named.conf
chkconfig --level 35 named on
service named start
file  /etc/named

options {
        directory "/var/named";

        forwarders {203.162.0.181; 203.162.0.11; 210.245.0.11; 210.245.0.58; 208.67.222.222; 208.67.220.220; 8.8.8.8; 8.8.4.4;};
};

zone "." IN {
        type hint;
        file "named.root";
};

zone "localhost" IN {
        type master;
        file "localhost.zone";
};

zone "0.0.127.in-addr.arpa" IN {
        type master;
        file "named.local";
};

zone "81.168.192.in-addr.arpa" IN {
        type master;
        file "192.168.81.0.db";
};

zone "hbn.local" {
        type master;
        file "hbn.local";
};

file hbn.local

$TTL 14400
@       IN      SOA     root.hbn.local.      hostmaster.hbn.local. (
                                                2009102800
                                                14400
                                                3600
                                                1209600
                                                86400 )

       IN      NS      hbn.local.
       IN      NS      hbn.local.

ftp        IN      A       192.168.81.150
hbn.local.       IN      A       192.168.81.150
localhost          IN      A       127.0.0.1
mail       IN      A       192.168.81.150
pop        IN      A       192.168.81.150
smtp       IN      A       192.168.81.150
server     IN      A       192.168.81.150
www        IN      A       192.168.81.150
hbn.local.      IN      MX      10 mail


hbn.local.    14400   IN      TXT     "v=spf1 a mx ip4:192.168.81.150 ~all"

file 192.168.81.0.db

$TTL    86400
@       IN      SOA     hbn.local. root.hbn.local.  (
                                      1997022700 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
        IN      NS      ns1.hbn.local.
150       IN      PTR     dns.hbn.local.

[root@server named]# vim /var/named/chroot/etc/named.conf
Edit /etc/resolv.conf
;search hbn.local
nameserver 192.168.81.150

[root@server named]# service named start
Starting named:                                            [  OK  ]
[root@server named]# chkconfig --level 35 named on
Test DNS:
[root@server ~]# nslookup hbn.local
Server:         192.168.81.150
Address:        192.168.81.150#53

Name:   hbn.local
Address: 192.168.81.150

[root@server ~]# nslookup server.hbn.local
Server:         192.168.81.150
Address:        192.168.81.150#53

Name:   server.hbn.local
Address: 192.168.81.150

Install dependence packet
[root@server named]#yum install postfix ntp gmp systat sysstat

Synchronize Time:
# chkconfig ntpd on
# ntpdate pool.ntp.org
# chkconfig ntpd on
# /etc/init.d/ntpd start

Change MTA to postfix
# alternatives --display mta
mta - status is auto.
 link currently points to /usr/sbin/sendmail.sendmail
# alternatives --config mta

There are 2 programs which provide 'mta'.

  Selection    Command
-----------------------------------------------
*+ 1           /usr/sbin/sendmail.sendmail
   2           /usr/sbin/sendmail.postfix

Enter to keep the current selection[+], or type selection number: 2
# alternatives --display mta
mta - status is manual.
 link currently points to /usr/sbin/sendmail.postfix
# service postfix stop
# chkconfig postfix off

Sure SELINUX and iptable is stoped
# service iptables stop
in /etc/sysconfig/selinux
SELINUX=disabled

Install zimbra
# tar xvzf zcs-7.1.0_GA_3140.RHEL5.20110329150824.tgz
# cd zcs-7.1.0_GA_3140.RHEL5.20110329150824
# ./install.sh --platform-override

This platform is CentOS5
Packages found: RHEL5
This may or may not work.

Using packages for a platform in which they were not designed for
may result in an installation that is NOT usable. Your support
options may be limited if you choose to continue.

Install anyway? [N] Y

The system will be modified.  Continue? [N] Y

Now you can login to zimbra. User web interface on port 80. If admin login, notice to top right, you can see admin console link.
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Thanks for reading
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All my Lab:
Linux Lab -- window and Cisco Lab
to be continued - I will update more.