Excuse-me, found solution.
I would like to delete this post but found no way to do that.
Thanks
Paulo
Hi Paulo,
No need to delete this. It may be useful to others in the future:
When setting up a voucher server, you can modify its parameters in terms of using simpler characters and adjusting the length of the username and password individually. :)
Cheers,
Franco
Can you please share the solution?
I created a captive portal following this:
https://docs.opnsense.org/manual/how-tos/guestnet.html?highlight=captive%20portal
It does not mention how to restrict the characters used for username/password.
Regards
StP
When you create an Voucher Server under System->Access->Servers.
Here you can choose the option to create simpler Voucher Codes.
Thanks, found it.
StP