Dual cab wiring

I'm having a foggy morning... HAHA

Anyway, I've got a pile of extra jacks and I was wondering if anyone remembered off-hand how to wire a cab with two jacks so as to daisy chain two cabs together. They're both 8 ohm 1x12" cabs.

Amp head into cab 1 jack 1, cab 1 jack 2 into cab 2 jack 1.

This would be a parallel setup right?

Is there a way to wire the dual jacks for series daisy chaining? I can rewire my amp builds for 4, 8, or 16 ohm tap jacks (or one a 3-way switch)... but I'd like to know my series/parallel options in case :)

Parallel is fine, tip to + on both outputs and same for - coming back.

For series: amp jack tip to cab one +, that out onto ground on cab 1 jack to tip on cab 2 jack + then ground back to the amp jack.

This should be right, double check of course