Firewalld rules required to open nfs services

Fedora server edition comes with nfs server installed. However we need to add several rules for firewalld to access nfs service.

firewall-cmd --add-service=rpc-bind
firewall-cmd --add-service=mountd
firewall-cmd --add-port=2049/tcp
firewall-cmd --add-port=2049/udp

Use --permanent option and then --reload option to make the rules persistent and effective.