mod_http_oauth2: Do minimal validation of private-use URI schemes Per draft-ietf-oauth-v2-1-08#section-2.3.1 > At a minimum, any private-use URI scheme that doesn't contain a period > character (.) SHOULD be rejected. Since this would rule out the OOB URI, which is useful for CLI tools and such without a built-in http server, it is explicitly allowed.

[Install]
WantedBy=sockets.target

[Socket]
ListenStream=0.0.0.0:5222
ListenStream=5222
BindIPv6Only=ipv6-only
Accept=false
Service=prosody.service