Can I use UBOS without purchasing a domain name?

Yes:

• You can use the IP address of your Device instead of a domain name, if you have specified *, or the IP address directly as the domain name when executing ubos-admin createsite.

• If you are satisfied with accessing your Device only on your local network, the UBOS device advertises itself via mDNS and you can use that name. See Setting up networking and DNS.

• You can enter a domain name for your Site name in local DNS server of your home router or LAN domain server. This makes most sense if your Site is only on your local network anyway.

• You can use a free dynamic DNS service. See also ddclient in Setting up networking and DNS.