I plan to build a random wire antenna in my backyard with an RG8X
feedline.

I want to ground the feedline just before it enters the house.

Can I connect the coax to a SO-239 to SO-239 adapter (I think it's
called a PL-258), then attach the adapter directly to a ground rod
using a hose clamp?

Or, should I buy a lightning arrestor (e.g., Zap Trapper) and attach
that to ground rod just outside the house?

Thanks.