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The file owner is 'root' and the SUID permission is set (the '4') - so the file is executed as 'root'. The reason an executable would be run as 'root' is so that it can modify specific files that the user would not normally be allowed to, without giving the user full root access. A default use of this can be seen with the /usr/bin/passwd binary ...
This design allows the user interface to run as a standard user, and the daemon to run as the root user, so the user can change the wireless network without knowing the root password. The split interface/daemon design would also allow a person to write a new front-end to the Wicd daemon, such as wicd-qt.
Sudo command on Ubuntu to temporarily assume root privileges. Most Unix and Unix-like systems have an account or group which enables a user to exact complete control over the system, often known as a root account. If access to this account is gained by an unwanted user, this results in a complete breach of the system.
One solution is a "shadow" password file to hold the password hashes separate from the other data in the world-readable passwd file. For local files, this is usually /etc/shadow on Linux and Unix systems, or /etc/master.passwd on BSD systems; each is readable only by root. (Root access to the data is considered acceptable since on systems with ...
The password file maps textual user names to UIDs. UIDs are stored in the inodes of the Unix file system , running processes, tar archives, and the now-obsolete Network Information Service. In POSIX -compliant environments, the shell command id gives the current user's UID, as well as more information such as the user name, primary user group ...
Settings may be in a different location in each email client, though the AOL server and port settings will always be the same. For additional questions specific to the email client, check the manufacturer’s website. Manufacturers cannot answer questions about your AOL Mail settings, or your AOL username or password.
To this end, the root account is often configured with a shell which is small, efficient, and dependable, but awkward for daily use. The toor account is intended as a solution to this problem. It is identical to root, but is configured to use a different, more featureful shell.
sudo (/ s uː d uː / [4]) is a program for Unix-like computer operating systems that enables users to run programs with the security privileges of another user, by default the superuser. [5]