MAN SUDO PASSWORD

The tty_tickets option can be disabled to forcethe use of a single time stamp for all of a user's sessions. By default, sudoers uses a tty-basedtime stamp which means that there is a separate time stamp for each of auser's login sessions.

MAN SUDO PASSWORD

Without a password for a short period of time (ĥ minutes unlessoverridden by the timeout option). Once a user has been authenticated, the time stamp is updated and the user may then use sudo Sudoers uses time stamp files for credential caching. Note, however, that the sudoers lookup is still done for root, not the user specified by SUDO_USER. When invoked via a sudo-run script or program. It also allows the -e option to remain useful even This can be used by a user to log commands through sudo even when a root shell has been invoked. If sudo is run by root and the SUDO_USER environment variable is set, the sudoers policy will use this value to determine who the actual user Themselves whether or not they are allowed to use sudo. Note that mail will not be sent if an unauthorized user tries to run sudo with the -l or -v option.

The address used for such mail isĬonfigurable via the mailto Defaults entry (described later) and defaults to root. If a user who is not listed in the policy tries to run a command via sudo, mail is sent to the proper authorities. Via the rootpw, targetpw and runaspw flags, described later. When sudoers requires authentication, it validates the invoking user's credentials, not the target user's (or root's) credentials. Invoking user is root, if the target user is the same as the invoking user, or if the policy has disabled authentication for the user or command. The sudoers security policy requires that most users authenticate themselves before they can use sudo. Sudoers policy information in LDAP, please see sudoers.ldap(5). The policy format is described in detail in the SUDOERS FILE FORMAT section. etc/sudoers file or, optionally in LDAP. The sudoers policy module determines a user's sudo privileges.

Man sudo