Error curl x ubuntu

Good afternoon.
to ubuntu there was here such mistake in attempt to cause curl -X POST --header ‘Content-Type: application/json’ --header ‘Accept: application/json’ -d ‘MyApiKey’ ‘http://localhost:6869/utils/hash/secure’ to create the hash for a node waves
I apply a screen of a mistake

what should be established on ubuntu that such mistake by hash challenge from curl -X POST --header ‘Content-Type: application/json’ --header ‘Accept: application/json’ -d ‘MyApiKey’ ‘http://localhost:6869/utils/hash/secure’ did not arise

Have you turned on you node, api and binded it to that port?

good afternoon.
do not prompt how to tie port to api?
thanks in advance
PS if is possible the instruction with pictures

It’s all done inside your conf file.
Default this is located in /usr/share/waves/conf/waves.conf

thanks a lot.
if still there are questions it is possible I will ask you for the help?

If I read it, sur yes