{"id":4132,"date":"2022-08-25T07:09:40","date_gmt":"2022-08-25T07:09:40","guid":{"rendered":"https:\/\/ccbill.com\/kb\/?p=4132"},"modified":"2023-03-06T12:26:49","modified_gmt":"2023-03-06T12:26:49","slug":"curl-basic-auth","status":"publish","type":"post","link":"https:\/\/ccbill.com\/kb\/curl-basic-auth","title":{"rendered":"Curl Basic Auth - How Does It Work?"},"content":{"rendered":"\n

Introduction<\/p>\n\n\n\n

Servers using HTTP authentication send a 401 unauthorized response if a client tries to access a protected resource. The response includes one or more WWW-Authenticate<\/em> headers that indicate what authentication methods the server accepts for that resource. <\/p>\n\n\n\n

Basic Authentication (Basic Auth) is not entirely secure, but it is a fast and convenient way to implement access control for noncritical web resources.  <\/p>\n\n\n\n

Find out how to use the curl<\/strong><\/a> <\/strong>command-line utility to streamline Basic Auth requests. <\/p>\n\n\n\n

\"How<\/figure>\n\n\n\n

What Is Basic Authentication? <\/h2>\n\n\n\n

Basic Authentication is an HTTP authentication method where the server declares that the client must submit a username and password to access a resource. The server validates the provided credentials against a database of authorized users and serves the resources. <\/p>\n\n\n\n

Basic Auth includes the following steps: <\/p>\n\n\n\n

    \n
  1. A web client, for example, a browser, requests access to a protected resource.<\/li>\n\n\n\n
  2. The web server returns a challenge, typically a dialog box that asks the web client to provide valid credentials. <\/li>\n\n\n\n
  3. The client submits the username and password. <\/li>\n\n\n\n
  4. The server authenticates the user and returns the requested resource. <\/li>\n<\/ol>\n\n\n\n
    \"Visual<\/figure>\n\n\n\n

    The client sends authentication credentials in the Authorization<\/em> header field. The header field is structured as follows:  <\/p>\n\n\n\n