Zimbra Setups

 adduser rhouser
 passwd rhouser
 
 yum update -y ; reboot
 yum -y install which openssh openssh-server openssh-clients openssl-libs nano rsync unzip net-tools NetworkManager-tui sysstat perl-core libaio nmap-ncat libstdc++.so.6 wget tar bind-utils -y 
 yum install psmisc 
 #Install and configure firewall-cmd
 hostnamectl set-hostname "mail.rhomicom.com"
 exec bash
# nano /etc/hosts
# 192.168.0.108 mail.rhomicom.com mail

echo 'mail.rhomicom.com' > /etc/hostname
echo '127.0.0.1 mail.rhomicom.com mail' >> /etc/hosts
hostname mail.rhomicom.com
hostname --fqdn

# Do all DNS settings and MX records on Domain Registrar's DNS
dig -t A mail.rhomicom.com
dig -t MX rhomicom.com

#Install Let'sencrypt CentOS7
yum install epel-release
yum install certbot

wget https://files.zimbra.com/downloads/8.8.10_GA/zcs-8.8.10_GA_3039.RHEL7_64.20180928094617.tgz --no-check-certificate
tar zxpvf zcs-8.8.10_GA_3039.RHEL7_64.20180928094617.tgz
cd zcs-8.8.10_GA_3039.RHEL7_64.20180928094617

./install.sh
#Answer Y to all options
# Answer Yes to Create Domain 
# enter domain rhomicom.com
# enter MX mail.rhomicom.com
# Unconfigured Modules, Choose 7
# Choose 4 to set admin password
# choose r to go back
# choose a to apply all settings
# Wait for system to complete configuration and login
su - zimbra -c "zmcontrol start"
su - zimbra -c "zmcontrol stop"
su - zimbra -c "zmcontrol status"
su - zimbra -c "zmcontrol restart"

Uninstall

 cd /root/zimbra/zcs-8.8.10_GA_3039.RHEL7_64.20180928094617
 zcs-8.8.10_GA_3039.RHEL7_64.20180928094617]# ./install.sh -u

Move from Old to New Server

 # On Old Server
 tar -czvf zimbkp29Aug2021-17-39.tar.gz /opt/zimbra/
 # On New Server
 # Install Same version of ZCS
 rsync -avH rhouser@1.1.1.1:/home/rhouser/*.t*z --progress --human-readable /home/rhouser
 tar -xzvf zimbkp29Aug2021-17-39.tar.gz
 mv /opt/zimbra /home
 mv opt/zimbra /opt
 /opt/zimbra/libexec/zmfixperms -e -v  # as root
 postfix check
 #temporarily switch to self-signed cert to avoid some SSL/TLS errors
 /opt/zimbra/bin/zmcertmgr createcrt -new -days 3650
 /opt/zimbra/bin/zmcertmgr deploycrt self
 # Alternatively you may disable TLS Connections temporarily
 su - zimbra 
 zmlocalconfig -e ssl_allow_untrusted_certs=true 
 zmlocalconfig -e ldap_starttls_supported=0
 zmlocalconfig -e ldap_starttls_required=false
 zmlocalconfig -e ldap_common_require_tls=0
 zmcontrol restart
 #Reset LDAP Password
 /install.sh

# Enable TLS Connections after install if they were disabled
su - zimbra 
zmlocalconfig -e ssl_allow_untrusted_certs=true 
zmlocalconfig -e ldap_starttls_supported=1
zmlocalconfig -e ldap_starttls_required=true
zmlocalconfig -e ldap_common_require_tls=1
zmcontrol restart