Basic network connection question

[CJSHayward]

I can't interestingly ask good questions here until I am able here to connect to a network and install VirtualBox. I wrote in a unix.stackexchange.com question that has a presently active bounty:

I'm on a WiFi network where it is necessary to skip certificate checking, and connect to network foo as username bar with password baz.

What is the Solaris 11.4 invocation to connect to the network, or where is the documentation if something more sophisticated is required than connecting to a particular network with a given username and password and skipping certificate checking?

Any guidance would be appreciated.