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  2. Secure Shell - Wikipedia

    en.wikipedia.org/wiki/Secure_Shell

    This file is respected by SSH only if it is not writable by anything apart from the owner and root. When the public key is present on the remote end and the matching private key is present on the local end, typing in the password is no longer required.

  3. iOS jailbreaking - Wikipedia

    en.wikipedia.org/wiki/IOS_jailbreaking

    In the same month, F-Secure reported on a new malicious worm compromising bank transactions from jailbroken phones in the Netherlands, similarly affecting devices where the owner had installed SSH without changing the default password. [161] [162] Restoring a device with iTunes removes a jailbreak.

  4. ssh-keygen - Wikipedia

    en.wikipedia.org/wiki/Ssh-keygen

    ssh-keygen is a standard component of the Secure Shell (SSH) protocol suite found on Unix, Unix-like and Microsoft Windows computer systems used to establish secure shell sessions between remote computers over insecure networks, through the use of various cryptographic techniques. The ssh-keygen utility is used to generate, manage, and convert ...

  5. Comparison of SSH clients - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_SSH_clients

    An SSH client is a software program which uses the secure shell protocol to connect to a remote computer. This article compares a selection of notable clients. This article compares a selection of notable clients.

  6. Brute-force attack - Wikipedia

    en.wikipedia.org/wiki/Brute-force_attack

    When password-guessing, this method is very fast when used to check all short passwords, but for longer passwords other methods such as the dictionary attack are used because a brute-force search takes too long. Longer passwords, passphrases and keys have more possible values, making them exponentially more difficult to crack than shorter ones ...

  7. OpenSSH - Wikipedia

    en.wikipedia.org/wiki/OpenSSH

    The OpenSSH server can authenticate users using the standard methods supported by the SSH protocol: with a password; public-key authentication, using per-user keys; host-based authentication, which is a secure version of rlogin 's host trust relationships using public keys; keyboard-interactive, a generic challenge–response mechanism, which ...

  8. passwd - Wikipedia

    en.wikipedia.org/wiki/Passwd

    Regardless of whether password shadowing is in effect on a given system, the passwd file is readable by all users so that various system utilities (e.g., grep) can work (e.g., to ensure that user names existing on the system can be found inside the file), while only the root user can write to it. Without password shadowing, this means that an ...

  9. Password cracking - Wikipedia

    en.wikipedia.org/wiki/Password_cracking

    The purpose of password cracking might be to help a user recover a forgotten password (due to the fact that installing an entirely new password would involve System Administration privileges), to gain unauthorized access to a system, or to act as a preventive measure whereby system administrators check for easily crackable passwords. On a file ...