HTTP/1.0 407 Proxy Authentication Required
Proxy-Authenticate: Basic realm="login"
Connection: close
Content-type: text/html; charset=utf-8

HTTP/1.0 407 Proxy Authentication Required
Proxy-Authenticate: Basic realm="login"
Connection: close
Content-type: text/html; charset=utf-8

Socks4A

[

HTTP/1.0 407 Proxy Authentication Required
Proxy-Authenticate: Basic realm="login"
Connection: close
Content-type: text/html; charset=utf-8

HTTP/1.0 407 Proxy Authentication Required
Proxy-Authenticate: Basic realm="login"
Connection: close
Content-type: text/html; charset=utf-8