Can other people connect to the proxy I set up, or is it just for me? Alternatively, for a slightly more dir

opinionated:
Bro, you’re basically leaving your front door unlocked. can other people connect to the proxy I set up? Absolutely, unless you’ve got rules in place.

Squid’s logs will show traffic (`/var/log/squid/`), but why wait? Shut it down or restrict it NOW.

If you *must* share it, use authentication. Google "Squid basic auth" for steps. Otherwise, you’re asking for trouble.