![]() Zimbra recommends to disable firewall in the installation process, once installation has been successfully completed, enable the firewall and add the firewall rules to allow traffic to zimbra mailserver. It is also recommended to install ZCS in a fresh system. Ubuntu Server FQDN - ĭNS Server IP - 172.31.26.109 ( Same server, advisable to keep it in a separate server in your network )ĭomain name - 1. Configure hostnameĮdit /etc/hosts and add the line 172.31.26.109 mail. :~# cat /etc/hostsĪlso edit /etc/hostname and the line 'mail' :~# cat /etc/hostname Change 172.31.26.109 with the IP you want to use. Reboot the system and test the FQDN of your server with the command hostname -f and hostname. If you are using any cloud based hosting service then make sure you have set the value of parameter preserve_hostname to true. We will install BIND name server in the same system where ZCS will be installed. You are free to install BIND name server in another system in your internal network. #CANNOT CONNECT TO THE ZCS UPSTREAM SERVER FREE# Install bind9 by executing following command in the terminal. #CANNOT CONNECT TO THE ZCS UPSTREAM SERVER FREE#.#CANNOT CONNECT TO THE ZCS UPSTREAM SERVER INSTALL#. ![]()
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