@Petrushka hello!!
In our firewalld rules we have
services:
- ftp
- http
- mountd
- nfs
- rpc-bind
- tftp
ports:
- { port: 20048, proto: tcp } # nfs
- { port: 20048, proto: udp } # nfs
- { port: "35350-36350", proto: udp } # tftp
- { port: "49512-65532", proto: udp } # multicast