Proxy Authorisation

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Proxy-Authorization - HTTP - MDN Web Docs

Proxy-Authorization – HTTP – MDN Web Docs

The HTTP Proxy-Authorization request header contains the
credentials to authenticate a user agent to a proxy server, usually after the server has
responded with a 407 Proxy Authentication Required status
and the Proxy-Authenticate header.
Header type
Request header
Forbidden header name
no
SyntaxProxy-Authorization:
Directives

Authentication
type. A common type is “Basic”.
See also the IANA
registry of Authentication schemes.

The credentials are constructed like this:
The username and the password are combined with a colon
(aladdin:opensesame).
The resulting string is base64
encoded (YWxhZGRpbjpvcGVuc2VzYW1l).
Note: Base64 encoding does not mean encryption or hashing! This
method is as secure as sending the credentials in clear text (base64 is a
reversible encoding). It is preferable to use HTTPS in conjunction with Basic
Authentication.
ExamplesProxy-Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
SpecificationsSee also
HTTP authentication
Proxy-Authenticate
WWW-Authenticate
Authorization
401, 403, 407
Proxy authorization

Proxy authorization

Proxy authorization is a setting that you enable in a policy to require that ETP Proxy authorize
connections from the on-premises proxy in a proxy chaining configuration. This setting adds
the Proxy-Authorization header to these connections. The Proxy-Authorization header contains
proxy credentials that are used to authenticate the on-premises proxy. ETP Proxy validates these credentials
before it allows connections from the on-premises proxy.
To set up proxy authorization, you must:
Configure proxy credentials. This process
involves creating a username and password. For instructions, see Create a proxy credential.
Configure these proxy credentials in the on-premises proxy. For instructions on
configuring these credentials in Squid, see Configure Squid to forward traffic to ETP Proxy.
Select to trust the X-Forwarded-For header in a policy. For instructions, see Enable a full web
proxy.
Enable the Proxy Authorization setting in the policy. For instructions, see Enable a full web
proxy or Enable proxy authorization
Note: Proxy authorization uses a basic authentication scheme. The credentials in the proxy
authorization header are base64 encoded. HTTPS and TLS further secures these credentials in
the header.
In situations where ETP Proxy cannot validate the request, a browser error message appears.
For example:
If authentication fails, a browser error message indicates that authentication
failed.
If proxy authentication is enabled in a policy and there are no proxy credentials
configured, a browser error message indicates that proxy authentication is required.
If proxy authorization is not enabled in a policy for a proxy chaining
configuration, requests are accepted by ETP Proxy as long as they come from a known location.
407 Proxy Authentication Required - HTTP - MDN Web Docs

407 Proxy Authentication Required – HTTP – MDN Web Docs

The HTTP 407 Proxy Authentication Required client error
status response code indicates that the request has not been applied because it lacks
valid authentication credentials for a proxy server that is between the
browser and the server that can access the requested resource.
This status is sent with a Proxy-Authenticate header that contains
information on how to authorize correctly.
Status407 Proxy Authentication Required
Example responseHTTP/1. 1 407 Proxy Authentication Required
Date: Wed, 21 Oct 2015 07:28:00 GMT
Proxy-Authenticate: Basic realm=”Access to internal site”
SpecificationsSpecificationHypertext Transfer Protocol (HTTP/1. 1): Authentication (HTTP/1. 1)# status. 407Browser compatibilityBCD tables only load in the browserSee also
HTTP authentication
WWW-Authenticate
Authorization
Proxy-Authorization
Proxy-Authenticate
401, 403

Frequently Asked Questions about proxy authorisation

What is proxy authorization?

Proxy authorization is a setting that you enable in a policy to require that ETP Proxy authorize connections from the on-premises proxy in a proxy chaining configuration. … The Proxy-Authorization header contains proxy credentials that are used to authenticate the on-premises proxy.

What does proxy authorization required mean?

The HTTP 407 Proxy Authentication Required client error status response code indicates that the request has not been applied because it lacks valid authentication credentials for a proxy server that is between the browser and the server that can access the requested resource.Aug 13, 2021

How do I get rid of proxy authentication required?

In order to resolve the issue we can recommend the following options: 1. Configure the internet connection to not use the Proxy server. In the Internet Explorer, open the Internet Options dialog box, click Connections, click LAN Settings, and disable “Use a Proxy Server…”.

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