Re: firewalld - block all ports input
There really isn't one. I don't believe it accepts a wildcard or range in the firewall-cmd option to remove the ports. There might be a way to code a rich rule to load, but not sure...
If you wish to completely block all access (incoming and outgoing) you can turn on panic mode.
Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?