How to change Nodeport

[josetemitayoHH96]

I am trying to change nodeport on k3s and I tried this command
k3s server --kube-apiserver-arg --service-node-port-range=20618-20828
but I got this error

FATA[0000] starting kubernetes: preparing server: init cluster datastore and https: listen tp :6443: bind: address already use

[brandond]

You appear to be trying to run another copy of k3s, instead of modifying the CLI flags for the service. Use systemctl edit --full k3s to edit the systemd unit, make your changes to the CLI flags, and then restart the service.

Also, the format you want for that flag is--kube-apiserver-arg=service-node-port-range=20618-20828.