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424 Failed Dependency (WebDAV; RFC 4918) The request failed because it depended on another request and that request failed (e.g., a PROPPATCH). [7] 425 Too Early (RFC 8470) Indicates that the server is unwilling to risk processing a request that might be replayed. 426 Upgrade Required
Diameter is an authentication, authorization, and accounting (AAA) protocol for computer networks. It evolved from the earlier RADIUS protocol. It belongs to the application layer protocols in the Internet protocol suite.
In a typical OAuth flow: A resource owner (RO), a human who uses a client application, is redirected to an authorization server (AS) to log in and consent to the issuance of an access token. This access token allows the client application to gain API access to the resource server (RS) on the resource owner's behalf in the future, likely in a ...
Authentication required: In some cases, the server requires authentication to access certain resources. If the user does not provide valid credentials or if the authentication fails, a 403 status code is returned. IP restrictions: The server may also restrict access to specific IP addresses or IP ranges.
Proxy-Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== Permanent RFC 9110: Range: Request only part of an entity. Bytes are numbered from 0. See Byte serving. Range: bytes=500-999: Permanent RFC 9110: Referer : This is the address of the previous web page from which a link to the currently requested page was followed.
Then he sends a packet saying "Authentication successful" or "Authentication failed" based on the result. [3] This is an example of a very basic authentication protocol vulnerable to many threats such as eavesdropping, replay attack, man-in-the-middle attacks, dictionary attacks or brute-force attacks. Most authentication protocols are more ...
In the context of an HTTP transaction, basic access authentication is a method for an HTTP user agent (e.g. a web browser) to provide a user name and password when making a request. In basic HTTP authentication, a request contains a header field in the form of Authorization: Basic <credentials> , where <credentials> is the Base64 encoding of ID ...
In computing, the Challenge-Handshake Authentication Protocol (CHAP) is an authentication protocol originally used by Point-to-Point Protocol (PPP) to validate users. CHAP is also carried in other authentication protocols such as RADIUS and Diameter. Almost all network operating systems support PPP with CHAP, as do most network access servers.