Restrict Some Captive portal users to just one or two specific sites
I wanna restrict some of our users to just one or two sites, all the users are using applications on the same network
the question is if it is possible or not to restrict their internet usage by mac address or something?
You could limit access to just a handful of sites by setting their client machines to a static address (or setting their DHCP server to assign a pre-assigned address) and setting an internal firewall rule. The more elegant solution would be to use a proxy server.