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Learn how basic access authentication works in HTTP transactions, where a user agent provides a user name and password in a header field. Find out the features, security, and protocol of this method, and its alternatives and references.
Learn how digest access authentication works, its advantages and disadvantages, and its history and standards. Digest access authentication is a method of verifying user identity with a web server using MD5 or SHA hashing and nonce values.
Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to multiple software systems. Learn about the advantages, drawbacks, and security issues of SSO, as well as related concepts such as same-sign on, federated authentication, and social logons.
Learn how to delete, change, or view your AOL username and associated services. Find out why you can't modify your username or create secondary usernames after November 30, 2017.
Learn how to access your AOL account if you forget your password or username, and how to update your password regularly. Follow the steps to use Sign-in Helper, AOL Account security page, or AOL mobile apps to manage your password.
If you're having problems sending mail, there are a few troubleshooting steps you can take to fix the problem. Restart your computer:. If you haven't shut down your computer in a while, we recommend that you begin troubleshooting by restarting your computer.
Learn how to create a user account on Wikipedia, why it is recommended, and how to log in with your username and password. Find solutions for common login issues and problems, such as cookies, captchas, and blocked IP addresses.
Learn how to use the Autofill feature on AOL supported browsers to automatically fill in forms, usernames, and passwords on AOL. This can help you log in to AOL Mail faster and easier.