1. Update your system

#yum update

2. Install prerequisite pakages for zimbra

#yum install sudo sysstat libidn gmp libtool-ltdl compat-glib vixie-cron nc perl libstdc++.i686

3. Modify /etc/host file

#vi /etc/hosts

like this: localhost localhost.local domain
serverip hostname
save it

4. Disable startup service
a. chkconfig postfix off
b. service postfix off
c. chkconfig sendmail off
d. service sendmail stop

5. Modify /etc/sudoers file

#vi /etc/sudoers

comment out * Defaults requiretty * line

6. Disable the firewall

a. chkconfig iptables off
b. service iptables stop
c. chkconfig ip6tables off
d. service ip6tables stop

7. Disable selinux

# vi /etc/selinux/config


save it

8. reboot it

#init 6

9. Download zimbra and install it

a.     #wget – See more at:

b.    extract Zimbra tar file using below command
#tar -zxpvf zcs-8.0.4_GA_5737.RHEL6_64.20130524120036.tgz – See more at:

c. #cd zcs-8.0.4_GA_5737.RHEL6_64.20130524120036

d. # ./ –platform-override
It takes 5-10 minutes
Change Domain Name
Change admin password
10.   #su – zimbra

check zimbra status

# zmcontrol status

11. Go to URL