If you're using Tor Browser, you can set your proxy's address, port, and authentication information in the Network Settings.

If you're using Tor another way, you can set the proxy information in your torrc file. Check out the HTTPSProxy config option in the manual page. If your proxy requires authentication, see the HTTPSProxyAuthenticator option. Example with authentication:

  HTTPSProxy 10.0.0.1:8080
  HTTPSProxyAuthenticator myusername:mypass

We only support Basic auth currently, but if you need NTLM authentication, you may find this post in the archives useful.

For using a SOCKS proxy, see the Socks4Proxy, Socks5Proxy, and related torrc options in the manual page. Using a SOCKS 5 proxy with authentication might look like this:

  Socks5Proxy 10.0.0.1:1080
  Socks5ProxyUsername myuser
  Socks5ProxyPassword mypass

如果您的代理服务器只允许您接入特定的端口，请查看被防火墙阻挡的客户，获悉如何限制您的 Tor 浏览器接入的端口。