Service Banner Grabber

needed something that grabs banners without spinning up half a framework. this hits a short list of common ports and prints whatever the service sends back. that’s it.
if there’s a banner, you’ll see it. if there’s not, you won’t.
good for quick recon, checking what’s exposed, or finding misconfigured junk running on old boxes.
runs on python 3. no dependencies. everything prints straight to screen. nothing saved. nothing logged. one file. no setup.