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Sudo contains several configuration options such as allowing commands to be run as sudo without a password, changing which users can use sudo, and changing the message displayed upon entering an incorrect password. [23] Sudo features an easter egg that can be enabled from the configuration file that will display an insult every time an ...
Must be unique across users listed in the file. x: Information used to validate a user's password. The format is the same as that of the analogous field in the shadow password file, with the additional convention that setting it to "x" means the actual password is found in the shadow file, a common occurrence on modern systems. [2]
An Oracle programmer in the appropriately configured software environment can launch SQL Plus, for example, by entering: $ sqlplus scott/tiger where the Oracle user scott has the password tiger. SQL Plus then presents a prompt with the default form of: SQL>
The root user can do many things an ordinary user cannot, such as changing the ownership of files and binding to network ports numbered below 1024. The name root may have originated because root is the only user account with permission to modify the root directory of a Unix system.
The easier a password is for the owner to remember generally means it will be easier for an attacker to guess. [12] However, passwords that are difficult to remember may also reduce the security of a system because (a) users might need to write down or electronically store the password, (b) users will need frequent password resets and (c) users are more likely to re-use the same password ...
Unprivileged (regular) users who wish to change the group membership of a file that they own may use chgrp. The ownership of any file in the system may only be altered by a super-user. A user cannot give away ownership of a file, even when the user owns it. Similarly, only a member of a group can change a file's group ID to that group. [1]
The phrase wheel war, which originated at Stanford University, [8] is a term used in computer culture, first documented in the 1983 version of The Jargon File.A 'wheel war' was a user conflict in a multi-user (see also: multiseat) computer system, in which students with administrative privileges would attempt to lock each other out of a university's computer system, sometimes causing ...
An Oracle User Group is a private, generally non-profit or not-for-profit organization that provides support and education for users of Oracle Corporation technology, particularly for professional users, however student user groups have also been established. [1]