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  2. Fix problems signing into your AOL account - AOL Help

    help.aol.com/articles/help-signing-in

    To manage and recover your account if you forget your password or username, make sure you have access to the recovery phone number or alternate email address you've added to your AOL account. If you know your username but need to reset your password, make sure you create a strong password after you're back in your account.

  3. Why am I asked to verify my account after signing in?

    help.aol.com/articles/why-am-i-asked-to-verify...

    This is why it's important to keep these recovery options up to date. Please review your account settings and recovery methods from time to time, and especially prior to changing phone numbers or other email addresses, to help ensure you can always access your account!

  4. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and how to turn off 2-step verification if you need to.

  5. F2FS - Wikipedia

    en.wikipedia.org/wiki/F2FS

    If a file is linked, F2FS may loose its parent inode number so that fsync calls for the linked file need to perform the checkpoint every time. But, if the pino can be recovered after the checkpoint, roll-forward mechanism for the further fsync calls can be adjusted, which improves the fsync performance significantly. 3.11: N/A

  6. sync (Unix) - Wikipedia

    en.wikipedia.org/wiki/Sync_(Unix)

    The related system call fsync() commits just the buffered data relating to a specified file descriptor. [1] fdatasync() is also available to write out just the changes made to the data in the file, and not necessarily the file's related metadata. [2] Some Unix systems run a kind of flush or update daemon, which calls the sync function on a ...

  7. rdiff-backup - Wikipedia

    en.wikipedia.org/wiki/Rdiff-backup

    Beginning with version 2.2, the flags passed to rdiff-backup are either general, or specific to the operation. For example, disabling fsync (see below) is an option that is general, and thus comes after rdiff-backup. --no-compression is specific to the backup mode, and thus comes after backup.

  8. 2-Step Verification with a Security Key - AOL Help

    help.aol.com/articles/2-step-verification-with-a...

    A security key is a physical device that gets uniquely associated with your AOL account after you enable it. Each time you sign in with your password, you'll be prompted to approve access to your account using your key. This prevents anyone who doesn't have your security key device from gaining access to your account.

  9. Fractional quantum Hall effect - Wikipedia

    en.wikipedia.org/wiki/Fractional_quantum_Hall_effect

    The fractional quantum Hall effect (FQHE) is a collective behavior in a 2D system of electrons. In particular magnetic fields, the electron gas condenses into a remarkable liquid state, which is very delicate, requiring high quality material with a low carrier concentration, and extremely low temperatures.