Proxy Server Settings

To add a proxy server, click either Proxy Servers in the Profile menu or the corresponding item on the toolbar.

This will open a dialog window that allows you to add, edit, or remove the proxy servers and proxy chains used by Proxifier. If several proxy servers are specified, you can create proxy chain.

A proxy server will be displayed in bold if it is defined as the Action for the Default Proxification Rule.
The order of the proxy servers in the list is irrelevant. You can sort the list by address, port, or type (protocol).

To add a proxy server, click the Add button to launch the dialogue box in which you can specify the details of the proxy server.

Address
The address of the proxy server can be a hostname or IPv4/IPv6 address.

Port
Enter the port number to connect to the proxy server (usually 1080, 80, 8080, 3128, etc.).

Protocol
Choose the protocol used by the proxy server. Proxifier supports four protocols:

• SOCKS version 4(A): a legacy proxy server protocol that does not support authentication. You can specify only User ID.
• SOCKS version 5: a widely used proxy server protocol that supports authentication. You can specify a username and password.
  Technical info: http://www.ietf.org/rfc/rfc1928.txt and http://www.ietf.org/rfc/rfc1929.txt
• HTTPS: an HTTP proxy with SSL support for arbitrary ports.
  Technical info: http://www.ietf.org/rfc/rfc2817.txt
  An HTTP proxy with SSL tunnel support is also known as a
  • CONNECT proxy
  • SSL proxy

  WARNING!
  Many HTTP proxy servers do not support SSL tunneling, so they cannot be used as HTTPS. If an HTTP proxy works properly in the browser but fails in Proxifier, SSL support is most likely unavailable. You can also check the proxy with the Proxy Checker tool.

• HTTP: the most common type of proxy server. Unfortunately, such proxies can be used only for HTTP connections. You can enable this protocol at Profile -> Advanced -> HTTP Proxy Servers. Please be sure to read and understood the HTTP proxy servers topic before using this option.

Authentication and Options
The available options depend on the proxy server protocol.

• SOCKS version 4(A)
  User ID: used for purposes of authentication
  SOCKS 4A extension: allows remote name resolution (the "DNS through proxy" feature) for a SOCKS v4 proxy

• SOCKS version 5
  Username and Password: user authentication

• HTTPS
  Username and Password: user authentication
  Use NTLM: an authentication protocol with encryption for the secure transmission of login credentials
  Use Kerberos: a tickets-based authentication protocol with encryption for the secure transmission of login credentials
  Use current user login: proxy authentication will be done with current user credentials; also known as transparent authorization
  Send User-Agent: If this is checked, Proxifier emulates the browser's environment and appears as the specified browser (some proxy servers deny all requests that do not come from a browser)

• HTTP
  Username and Password: user authentication

You can check any proxy in the Proxy Checker tool using the Check button.

The Advanced button allows you to set the advanced parameters for the proxy such as custom label, interactive login, and others.