firewalld - query and open port

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Open port 8443/tcp  in firewalld :

// first query
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --query-port=8443/tcp
no

// add port
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --add-port=8443/tcp  
success

// verify
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --query-port=8443/tcp
yes
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Open port 53/udp   in firewalld :

// first query
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --query-port=53/udp
no

// add port
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --add-port=53/udp
success

//verify
[sarumuga@gant ]$ sudo  firewall-cmd --permanent   --query-port=53/udp
yes

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So, for making changes immediate and for future you need to execute two commands :

// immediate - run time
firewall-cmd --add-port=443/tcp

// for future too
firewall-cmd --permanent --add-port=443/tcp

source: http://www.firewalld.org/documentation/man-pages/firewall-cmd.html