cURL Proxy Guide — HTTP & SOCKS5 Examples
Quick proxy commands for cURL: authenticated HTTP proxy and SOCKS5 usage.
Published January 05, 2026 • 4 min read
Overview
Use cURL to quickly test proxies, verify IP changes, and debug authentication issues.
Examples
curl -x http://USER:PASS@HOST:PORT https://api.ipify.orgcurl --proxy socks5h://USER:PASS@HOST:PORT https://api.ipify.orgTroubleshooting
- If you see SSL errors: try updating curl or add --tlsv1.2 (temporary)
- If 407: credentials are wrong or auth is required
- If connection refused: wrong port or proxy not reachable