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A specialized command-line utility in the Linux terminal used to edit permissions for files and directories. Affected Entities Owner: the user account that owns the file or directory. Usually assigned to the user that created it, unless it has already been ch...

An enumeration of some commonly used shell commands in Linux or Unix-based systems. Command Description Options pwd Displays the current working directory on the terminal. ls List the files and subdirectories in the current working directory. -a: all...

An enumeration of the permission system Microsoft-Windows supports for files shared over a network. Permission Description Read Allows the user to read, copy, and run programs and files in a shared folder. Change Allows the user all the permissions in...

aliases: NTFS The default file system used in Microsoft-Windows. Features larger partition sizes smaller cluster sizes; less wasted space file and folder permissions for an ACL encryption compression disk space limit for individual users stores the master...

 An electronic measuring instrument that combines several measurement functions into one piece of hardware.

A cumulative permissions system for granular control over folder and files used in the New-Technology-File-System. NTFS permissions are unique in the sense that they apply to both network shared files and files hosted locally. This means that they can be used ...

aliases: DNS The naming system used by computer networks to match human-readable domain names to IP addresses. DNS is a hierarchical naming system, meaning it organizes everything from the first level (called the DNS Root), branching out into the different...

aliases: EFS An obscure file system only supported by NTFS used for specific file encryption. EFS encrypts specific files using both symmetric and asymmetric encryption. Using NTFS Permissions, EFS supports custom user access by the owner of the fil...

A proprietary, Unix-based operating system. Nobody really likes this one. Apple designed macOS for it's Mac computers. A proprietary, closed-source graphical OS, like Windows, designed for workstations and embedded systems. Mac workstations use their own file ...

A Windows 10 Pro feature that grants access to a program (of the same name) that'll manage user accounts, groups, and security policies. There are two main fashions one can implement Active Directory on a set of computers attached to a networks: workgroups an...

aliases: KDC A server agent that facilitates the distribution of cryptographic keys, often used in network authentication systems like Kerberos.

aliases: TGT An access key granted to approved hosts to access network services or resources without repeatedly entering credentials. A key component of the Kerberos network authentication protocol. Upon approval, the Authentication Service sends ba...

A network authentication protocol designed to provide secure authentication over unsecured networks. Kerberos uses a ticketing system to allow hosts on a network to prove their identity to each other securely. It's named after the guard dog of the Greek under...

aliases: GPT A hard disk partition style that works by assigning UUIDs to partitions on the hard disk drive and referencing them as needed. Data critical to platform operation is stored in separate partitions, and both primary and backup partition ta...

A type of operating system often used in embedded systems. Features: different algorithms embedded in the OS determine the next task to be performed tasks are given priority by the developer or the sysadmin RTOS enables tasks to begin with little to no latenc...

aliases: ASIC A type of microprocessor used in embedded systems designed to perform a single task. Features: usually custom designed used by a single company in their product expensive & time-consuming development high performance w/ low power consumption...

aliases: FPGA A type of microprocessor used in embedded systems that is configured by the end user upon deployment. Other types of microprocessors like ASIC and System on Chip microprocessors have hard-coded instruction sets, which makes FPGA ideal ...

Supervisory Control and Data Acquisition: a hardware device that monitors and controls PLC systems. SCADA controllers gather data and adjust the ICS based on the results of the hardware sensors. #XI