No modo normal, posso obter o conteúdo do site com o servidor proxy ( tinyproxy ):
curl https://anysite.any/
ou
curl -x 127.0.0.1:8888 https://anysite.any/
MAS, quero ativar o iptable masquerading por algum motivo, depois de ativá-lo, não consigo acessar nenhum site com proxy !!
iptables -t nat -A POSTROUTING -j MASQUERADE
curl -x 127.0.0.1:8888 https://anysite.any/
retorno:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>403 Access denied</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Access denied</h1>
<p>The administrator of this proxy has not configured it to service requests from your host.</p>
<hr />
<p><em>Generated by <a href="https://www.banu.com/tinyproxy/">tinyproxy</a> version 1.8.1.</em></p>
</body>
</html>
mas este comando funciona bem sem problemas:
curl https://anysite.any/
qual é o meu problema?