[root@mail /]# vi /etc/selinux/config ## disable selinux
[root@mail /]# reboot
[root@mail /]# yum remove postfix
[root@mail /]# yum -y update
[root@mail /]# yum -y install wget perl nmap-ncat libaio unzip perl-core sysstat net-tools
[root@mail /]# wget http://files2.zimbra.com/downloads/8.5.0_GA/zcs-8.5.0_GA_3042.RHEL7_64.20140828204420.tgz
[root@mail /]# wget http://files2.zimbra.com/downloads/8.5.0_GA/zcs-patch-8.5.0_GA_3043.tgz
[root@mail /]# vi /etc/hosts ## add this line -> 127.0.0.1 mail.rgiapratama.net mail
[root@mail /]# tar -zxvf zcs-8.5.0_GA_3042.RHEL7_64.20140828204420.tgz
[root@mail /]# cd zcs-8.5.0_GA_3042.RHEL7_64.20140828204420
[root@mail /]# ./install.sh
[root@mail /]# cd ..
[root@mail /]# tar -zxvf zcs-patch-8.5.0_GA_3043.tgz
[root@mail /]# cd zcs-patch-8.5.0_GA_3043
[root@mail /]# ./installPatch.sh