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38 relations: Capability-based security, Computer network, Computer program, Computer programming, Computer security, Confused deputy problem, Crash (computing), Daemon (computing), Defensive programming, Denial-of-service attack, Exploit (computer security), File system permissions, Fork (system call), Group identifier, List of TCP and UDP port numbers, Network socket, Niels Provos, Nobody (username), OpenBSD security features, Operating system, POSIX, Postfix (software), Principle of least privilege, Privilege (computing), Privilege bracketing, Privilege escalation, Privilege revocation (computing), Process (computing), Run time (program lifecycle phase), Sandbox (computer security), Setuid, Solaris (operating system), System call, Theo de Raadt, Unix domain socket, Unix-like, User identifier, Utility software.
Capability-based security
Capability-based security is a concept in the design of secure computing systems, one of the existing security models.
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Computer network
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.
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Computer program
A computer program is a collection of instructions for performing a specific task that is designed to solve a specific class of problems.
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Computer programming
Computer programming is the process of building and designing an executable computer program for accomplishing a specific computing task.
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Computer security
Cybersecurity, computer security or IT security is the protection of computer systems from theft of or damage to their hardware, software or electronic data, as well as from disruption or misdirection of the services they provide.
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Confused deputy problem
A confused deputy is a computer program that is innocently fooled by some other party into misusing its authority.
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Crash (computing)
In computing, a crash (or system crash) occurs when a computer program, such as a software application or an operating system, stops functioning properly and exits.
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Daemon (computing)
In multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.
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Defensive programming
Defensive programming is a form of defensive design intended to ensure the continuing function of a piece of software under unforeseen circumstances.
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Denial-of-service attack
In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.
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Exploit (computer security)
An exploit (from the English verb to exploit, meaning "to use something to one’s own advantage") is a piece of software, a chunk of data, or a sequence of commands that takes advantage of a bug or vulnerability to cause unintended or unanticipated behavior to occur on computer software, hardware, or something electronic (usually computerized).
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File system permissions
Most file systems have methods to assign permissions or access rights to specific users and groups of users.
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Fork (system call)
In computing, particularly in the context of the Unix operating system and its workalikes, fork is an operation whereby a process creates a copy of itself.
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Group identifier
In Unix-like systems, multiple users can be put into groups.
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List of TCP and UDP port numbers
This is a list of TCP and UDP port numbers used by protocols of the application layer of the Internet protocol suite for the establishment of host-to-host connectivity.
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Network socket
A network socket is an internal endpoint for sending or receiving data within a node on a computer network.
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Niels Provos
Niels Provos is a researcher in the areas of secure systems, malware and cryptography.
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Nobody (username)
In many Unix variants, "nobody" is the conventional name of a user account which owns no files, is in no privileged groups, and has no abilities except those which every other user has.
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OpenBSD security features
The OpenBSD operating system is noted for its focus on security and for the development of a number of security features.
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Operating system
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
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POSIX
The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems.
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Postfix (software)
Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail.
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Principle of least privilege
In information security, computer science, and other fields, the principle of least privilege (PoLP, also known as the principle of minimal privilege or the principle of least authority) requires that in a particular abstraction layer of a computing environment, every module (such as a process, a user, or a program, depending on the subject) must be able to access only the information and resources that are necessary for its legitimate purpose.
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Privilege (computing)
In computing, privilege is defined as the delegation of authority over a computer system.
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Privilege bracketing
In computer security, privilege bracketing is a temporary increase in software privilege within a process to perform a specific function, assuming those necessary privileges at the last possible moment and dismissing them as soon as no longer strictly necessary, therefore ostensibly avoiding fallout from erroneous code that unintentionally exploits more privilege than is merited.
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Privilege escalation
Privilege escalation is the act of exploiting a bug, design flaw or configuration oversight in an operating system or software application to gain elevated access to resources that are normally protected from an application or user.
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Privilege revocation (computing)
Privilege revocation is the act of an entity giving up some, or all of, the privileges they possess, or some authority taking those (privileged) rights away.
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Process (computing)
In computing, a process is an instance of a computer program that is being executed.
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Run time (program lifecycle phase)
In computer science, run time, runtime or execution time is the time during which a program is running (executing), in contrast to other program lifecycle phases such as compile time, link time and load time.
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Sandbox (computer security)
In computer security, a sandbox is a security mechanism for separating running programs, usually in an effort to mitigate system failures or software vulnerabilities from spreading.
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Setuid
setuid and setgid (short for "set user ID upon execution" and "set group ID upon execution", respectively) are Unix access rights flags that allow users to run an executable with the permissions of the executable's owner or group respectively and to change behaviour in directories.
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Solaris (operating system)
Solaris is a Unix operating system originally developed by Sun Microsystems.
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System call
In computing, a system call is the programmatic way in which a computer program requests a service from the kernel of the operating system it is executed on.
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Theo de Raadt
Theo de Raadt (born May 19, 1968) is a software engineer who lives in Calgary, Alberta, Canada.
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Unix domain socket
A Unix domain socket or IPC socket (inter-process communication socket) is a data communications endpoint for exchanging data between processes executing on the same host operating system.
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Unix-like
A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.
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User identifier
Unix-like operating systems identify a user within the kernel by a value called a user identifier, often abbreviated to user ID or UID.
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Utility software
Utility software is system software designed to help analyze, configure, optimize or maintain a computer.
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References
[1] https://en.wikipedia.org/wiki/Privilege_separation
