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55 Cards in this Set
- Front
- Back
a file that contains default values used when changing passwords such as an encryption algorithm
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/etc/default/passwd
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a file that contains default values used when creating user accounts
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/etc/default/useradd
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the file that contains system groups and their members
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/etc/group
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a file read at system initialization to decrypt encrypted partitions. It prompts you for the password used to decrypt a partition
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/etc/init.d/boot.crypto
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a file that contains default values used when creating user accounts
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/etc/login.defs
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the file that contains user account information such as name, UID, primary group, home directory, and shell
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/etc/passwd
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a file that can be used to store systemwide variables such as umask
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/etc/profile.local
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the file that typically contains encrypted passwords and password expiry information for user accounts on the system
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/etc/shadow
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a file that lists valid system shells such as /bin/bash
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/etc/shells
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a directory that contains files and directories that are copied to all new user's home direcotries after they are created
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/etc/skel
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a file that lists the users who are allowed to run certain commands as other users
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/etc/sudoers
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an encryption method used to encrypt Linux passwords
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Blowfish
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a command that is used to change the group owner of a file or directory
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chgrp (change group) command
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chmod (change mode) command
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a command that is used to change the mode (permissions) of a file or directory
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a command that is used to change the owner and group owner of a file or directory
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chown (change owner) command
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a permission that allows you to execute files as well as access directory contents
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execute permissions
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a number that uniquely identifies system groups
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GID (Group ID)
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a command that is used to run a program as another user within a GNOME desktop environment
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gnomesu (GNOME switch user) command
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a command that is used to set passwords for group accounts
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gpasswd command
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when referring to a long file or directory listing, it represents the group ownership of a file or directory
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group
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a comamnd that is used to add a group to the system
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groupadd command
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a command that is used to delete a group from the system
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groupdel command
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a command that is used to modify the name, membership, or GID of a group on the system
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groupmod command
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a command that displays the groups that a user is a member of.
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groups command
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a command that displays the UID and GIDs associated with a user account
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id command
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a permission that allows you to open and edit files as well as add or remove directory contents
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write permission
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a command that is used to send a message to system users
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wall (warn all) command
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a command tha tis used to edit the /etc/sudoers file with the vi text editor
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visudo command
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a command that is used to modify the properties of a user account on the system
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usermod command
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a command that is used to remove a user account on the system
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userdel command
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a command that is used to add a user account form the system
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useradd command
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a command that is used to view and change the system umask
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umask command
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a system variable that removes permissions on all new files and directories
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umask
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a number that uniquely identifies ewach system user account
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UID (User ID)
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User accounts that can be used by system services and cannot be used by users to log in to the system interactively
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system users
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a command that is used to run commands as another user via entries in /etc/sudoers
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sudo command
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a command that is used to change the current user account
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su (switch user) command
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a special permission set on directories that prevents users from removing files that they do not own
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sticky bit
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a special permission set on executable files.
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Set User ID (SUID)
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when you run an executable program that has the ______ permission set, you become the owner of teh executable file for the duration of the program
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SUID
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a special permission set on executable file and directories
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Set Group ID (SGID)
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a group that a user belongs to that is not the user's primary group
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secondary group
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user accounts that can be used to log in to the system interactively
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regular users
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a permission that allows you to open and read files as well as list directory contents
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read permission
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an executable file on a file system
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program
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__________ become processes when they are executed
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programs
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a program that is currently executing on the system and using system resources
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process
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the group specified for a user in the /etc/passwd file that becomes the group owner on newly created files and directories
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primary group
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a feature of Linux operating system that allows several processes to run simultaneously; the Linux kernel determines how much time each process has to execute
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preemptive multitasking
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a command that is used to modify user passwords and expiry information as well as lock and unlock user accounts
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passwd command
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the user whose name appears in a long listing of a file or directory and who typically has the most permissions to the file or directory
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owner
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when referring to a long file or directory listing, it represents all users on the Linux system who are not the owner or a member of the group on the file or directory
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other
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a command that is used to change the current primary group for a user account
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newgrp command
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the graphical file manager within a SUSE Linux desktop environment
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Nautilus
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a command that is used to create an encrypted password for use with user or group accounts
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mkpasswd command
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