look, i'm so tired of people in every proxy thread just blindly recommending user
ass authentication cuz it's 'more convenient.' yeah, it's convenient like leaving your front door unlocked is convenient. if you're working with anything beyond the most basic scraping script, you're asking for trouble. i've been auditing setups for some of my agency's automation tools and the amount of leaked credentials i find in logs is wild. user
ass is fine if you're the only one touching the config and everything stays on one machine, but scale anything up and it becomes a footprint nightmare. ip whitelisting takes five minutes to set up properly, then your auth is tied to a server ip that doesn't change unless you mess up. just had a client complain their entire residential proxy pool got banned from a data source. guess what? they were using the same user
ass across ten different vps instances because some forum guru said it was easier. now they're paying for new ips while i switch them to whitelists. it's not even about cost, it's about not being dumb.