Check your firewall # systemctl status firewalld # firewall-cmd --state # firewall-cmd --zone=public --list-all # firewall-cmd --list-services # cat /etc/firewalld/zones/public.xml Open port 25 and 2053 and other services # firewall-cmd --permanent --zone=public --add-port=25/tcp # firewall-cmd --permanent --zone=public --add-port=25/udp # firewall-cmd --permanent --zone=public --add-port=2053/tcp # firewall-cmd --permanent --zone=public --add-port=465/tcp # firewall-cmd --permanent --zone=public --add-port=587/tcp # firewall-cmd --permanent --zone=public --add-service=http # firewall-cmd --permanent --zone=public --add-service=https # firewall-cmd --permanent --zone=public --add-service=smtp # firewall-cmd --permanent --zone=public --add-service=imaps # firewall-cmd --permanent --zone=public --add-service=pop3s # firewall-cmd --permanent --zone=public --add-service=ldap Reload all setting using –permanent option only # firewall-cmd --reload Remove port access # firewall-cmd --permanent --zone=public –-remove-port=443/tcp # firewall-cmd --zone=public --remove-port=80/tcp --permanent # firewall-cmd --zone=public --remove-port=7071/tcp
Centos 7 Firewalld command
in Centos 7 Version, there is a slight differences between version 6. There is a firewalld application, who replaced the iptables in centos 6. this is the list of firewalld command taken from github.com/awangga/zimbracentos
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