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Proxy guides, experiments & operator notes
Engineering guides and first-party measurements for people operating proxy-backed data systems.
Featured · Tutorials
Private Internet Access SOCKS5 Proxy Setup
Configure the Private Internet Access SOCKS5 proxy with separate x-credentials, port 1080, leak-aware checks, and clear VPN-versus-proxy limits.
· 11 min read
Tutorials
17 entries
Proxy Checker: Test Liveness, Protocol, and Exit IP
Use a proxy checker correctly: test an authorized endpoint, interpret alive, latency, protocol, anonymity, and country signals, then...
8 min readRead
How to Set Up a SOCKS5 Proxy on Android
Set up a SOCKS5 proxy on Android through a SOCKS-aware app, verify the exit and DNS path, and avoid mistaking Android's HTTP setting for...
8 min readRead
SOCKS5 Browser Extensions: Setup and Leak Checks
Choose a trustworthy SOCKS5 browser extension, match its authentication limits, verify browser and DNS scope, and detect direct fallback...
8 min readRead
Ad Verification With Proxies: A Controlled QA Workflow
Run authorized ad verification with proxies using platform previews, one controlled regional variable, a reviewable record, and clear...
11 min readRead
Checking the Proxy and the Firewall: Fix the Chrome Error
Chrome shows this when a configured proxy fails. Find whether a proxy is set, remove leftovers you never wanted, and fix the one you...
10 min readRead
curl Error 7 and 56: Exit Codes Explained and Fixed
curl exit code 7 is a connection failure, not a timeout. What codes 6, 7, 28 and 56 each prove about a request, and how to fix each.
12 min readRead
ECONNREFUSED: Meaning, the localhost Trap, and Fixes
ECONNREFUSED means a reachable machine answered no. Read the address and port fields, rule out the localhost dual-stack trap, then fix...
11 min readRead
ERR_CONNECTION_REFUSED: What It Means and How to Fix It
ERR_CONNECTION_REFUSED means the server answered no, instantly. What refusal tells you, the localhost case, and ranked fixes for each side.
10 min readRead
ERR_CONNECTION_RESET: What It Means and How to Fix It
ERR_CONNECTION_RESET means the connection opened and was then killed by a TCP reset. How to tell who sent it, and the fix that follows.
12 min readRead
ERR_CONNECTION_TIMED_OUT: What It Is and How to Fix It
ERR_CONNECTION_TIMED_OUT means pure silence before the browser gave up. How silence differs from refusal and the fixes that match each...
10 min readRead
ERR_NAME_NOT_RESOLVED: What It Means and How to Fix It
ERR_NAME_NOT_RESOLVED means DNS returned no address, so your browser never connected. Two commands that localize it, then the fixes that...
12 min readRead
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