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81 relations: Analogy, AppArmor, Berkeley r-commands, Buffer overflow, Chmod, Clam AntiVirus, Computer security, Cryptographic hash function, Deb (file format), Debian, Denial-of-service attack, Domain Name System, Egress filtering, Email spam, File locking, File system permissions, File Transfer Protocol, Firewall (computing), FreeBSD, Gentoo Linux, GNU Privacy Guard, Group identifier, Inetd, Internet Protocol, IP address, Ipchains, IPsec, Iptables, Key derivation function, Linux, Loopback, Ls, Man-in-the-middle attack, MD5, Message transfer agent, Morris worm, NetBSD, Netfilter, Network File System, Network interface, Network interface controller, Open-source model, OpenBSD, Operating system, Passwd, Password, Ping of death, Point-to-Point Tunneling Protocol, Port (computer networking), Pretty Good Privacy, ..., Privilege separation, Red Hat Linux, Root, Rootkit, Rpm (software), S/MIME, Samba (software), Secure Shell, Security-Enhanced Linux, Sendmail, Setuid, Simple Mail Transfer Protocol, Sticky bit, Stunnel, Su (Unix), Sudo, Superman, Superuser, System administrator, Tcpdump, Telnet, Transport Layer Security, Unix, Unix security, Unix time, Unix-like, User (computing), Virtual private network, Wheel (computing), Wireshark, Xinetd. Expand index (31 more) »
Analogy
Analogy (from Greek ἀναλογία, analogia, "proportion", from ana- "upon, according to" + logos "ratio") is a cognitive process of transferring information or meaning from a particular subject (the analog, or source) to another (the target), or a linguistic expression corresponding to such a process.
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AppArmor
AppArmor ("Application Armor") is a Linux kernel security module that allows the system administrator to restrict programs' capabilities with per-program profiles.
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Berkeley r-commands
The Berkeley r-commands are a suite of computer programs designed to enable users of one Unix system to log in or issue commands to another Unix computer via TCP/IP computer network.
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Buffer overflow
In information security and programming, a buffer overflow, or buffer overrun, is an anomaly where a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations.
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Chmod
In Unix-like operating systems, is the command and system call which may change the access permissions to file system objects (files and directories).
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Clam AntiVirus
Clam AntiVirus (ClamAV) is a free, cross-platform and open-source antivirus software toolkit able to detect many types of malicious software, including viruses.
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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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Cryptographic hash function
A cryptographic hash function is a special class of hash function that has certain properties which make it suitable for use in cryptography.
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Deb (file format)
deb is the format, as well as extension of the software package format for the Linux distribution Debian and its derivatives.
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Debian
Debian is a Unix-like computer operating system that is composed entirely of free software, and packaged by a group of individuals participating in the Debian Project.
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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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Domain Name System
The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network.
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Egress filtering
In computer networking, egress filtering is the practice of monitoring and potentially restricting the flow of information outbound from one network to another.
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Email spam
Email spam, also known as junk email, is a type of electronic spam where unsolicited messages are sent by email.
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File locking
File locking is a mechanism that restricts access to a computer file by allowing only one user or process to access it in a specific time.
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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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File Transfer Protocol
The File Transfer Protocol (FTP) is a standard network protocol used for the transfer of computer files between a client and server on a computer network.
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Firewall (computing)
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
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FreeBSD
FreeBSD is a free and open-source Unix-like operating system descended from Research Unix via the Berkeley Software Distribution (BSD).
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Gentoo Linux
Gentoo Linux (pronounced) is a Linux distribution built using the Portage package management system.
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GNU Privacy Guard
GNU Privacy Guard (GnuPG or GPG) is a free software replacement for Symantec's PGP cryptographic software suite.
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Group identifier
In Unix-like systems, multiple users can be put into groups.
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Inetd
inetd (internet service daemon) is a super-server daemon on many Unix systems that provides Internet services.
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Internet Protocol
The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.
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IP address
An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
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Ipchains
Linux IP Firewalling Chains, normally called ipchains, is free software to control the packet filter or firewall capabilities in the 2.2 series of Linux kernels.
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IPsec
In computing, Internet Protocol Security (IPsec) is a secure network protocol suite of IPv4 that authenticates and encrypts the packets of data sent over an IPv4 network.
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Iptables
iptables is a user-space utility program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores.
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Key derivation function
In cryptography, a key derivation function (KDF) derives one or more secret keys from a secret value such as a master key, a password, or a passphrase using a pseudorandom function.
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Linux
Linux is a family of free and open-source software operating systems built around the Linux kernel.
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Loopback
Loopback, or loop-back, refers to the routing of electronic signals, digital data streams, or flows of items back to their source without intentional processing or modification.
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Ls
In computing, ls is a command to list files in Unix and Unix-like operating systems.
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Man-in-the-middle attack
In cryptography and computer security, a man-in-the-middle attack (MITM) is an attack where the attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other.
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MD5
The MD5 algorithm is a widely used hash function producing a 128-bit hash value.
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Message transfer agent
Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture.
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Morris worm
The Morris worm or Internet worm of November 2, 1988, was one of the first computer worms distributed via the Internet.
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NetBSD
NetBSD is a free and open source Unix-like operating system that descends from Berkeley Software Distribution (BSD), a Research Unix derivative developed at the University of California, Berkeley.
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Netfilter
Netfilter is a framework provided by Linux that allows various networking-related operations to be implemented in the form of customized handlers.
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Network File System
Network File System (NFS) is a distributed file system protocol originally developed by Sun Microsystems in 1984, allowing a user on a client computer to access files over a computer network much like local storage is accessed.
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Network interface
In computing, a network interface is a system's (software and/or hardware) interface between two pieces of equipment or protocol layers in a computer network.
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Network interface controller
A network interface controller (NIC, also known as a network interface card, network adapter, LAN adapter or physical network interface, and by similar terms) is a computer hardware component that connects a computer to a computer network.
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Open-source model
The open-source model is a decentralized software-development model that encourages open collaboration.
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OpenBSD
OpenBSD is a free and open-source Unix-like computer operating system descended from Berkeley Software Distribution (BSD), a Research Unix derivative developed at the University of California, Berkeley.
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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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Passwd
passwd is a tool on most Unix and Unix-like operating systems used to change a user's password.
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Password
A password is a word or string of characters used for user authentication to prove identity or access approval to gain access to a resource (example: an access code is a type of password), which is to be kept secret from those not allowed access.
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Ping of death
A ping of death is a type of attack on a computer system that involves sending a malformed or otherwise malicious ping to a computer.
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Point-to-Point Tunneling Protocol
The Point-to-Point Tunneling Protocol (PPTP) is an obsolete method for implementing virtual private networks, with many known security issues.
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Port (computer networking)
In computer networking, a port is an endpoint of communication in an operating system, which identifies a specific process or a type of network service running on that system.
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Pretty Good Privacy
Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication.
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Privilege separation
In computer programming and computer security, privilege separation is a technique in which a program is divided into parts which are limited to the specific privileges they require in order to perform a specific task.
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Red Hat Linux
Red Hat Linux, assembled by the company Red Hat, was a widely used Linux distribution until its discontinuation in 2004.
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Root
In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil.
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Rootkit
A root kit is a collection of computer software, typically malicious, designed to enable access to a computer or areas of its software that is not otherwise allowed (for example, to an unauthorized user) and often masks its existence or the existence of other software.
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Rpm (software)
RPM Package Manager (RPM) (originally Red Hat Package Manager; now a recursive acronym) is a package management system.
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S/MIME
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard for public key encryption and signing of MIME data.
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Samba (software)
Samba is a free software re-implementation of the SMB/CIFS networking protocol, and was originally developed by Andrew Tridgell.
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Secure Shell
Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network.
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Security-Enhanced Linux
Security-Enhanced Linux (SELinux) is a Linux kernel security module that provides a mechanism for supporting access control security policies, including United States Department of Defense–style mandatory access controls (MAC).
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Sendmail
Sendmail is a general purpose internetwork email routing facility that supports many kinds of mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.
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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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Simple Mail Transfer Protocol
Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (email) transmission.
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Sticky bit
In computing, the sticky bit is a user ownership access right flag that can be assigned to files and directories on Unix-like systems.
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Stunnel
stunnel is an open-source multi-platform application used to provide a universal TLS/SSL tunneling service.
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Su (Unix)
The Unix command su, sometimes described as substitute user, super user, switch user, or set user, is used by a computer user to execute commands with the privileges of another user account.
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Sudo
sudo is a program for Unix-like computer operating systems that allows users to run programs with the security privileges of another user, by default the superuser.
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Superman
Superman is a fictional superhero appearing in American comic books published by DC Comics.
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Superuser
In computing, the superuser is a special user account used for system administration.
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System administrator
A system administrator, or sysadmin, is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems; especially multi-user computers, such as servers.
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Tcpdump
tcpdump is a common packet analyzer that runs under the command line.
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Telnet
Telnet is a protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
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Transport Layer Security
Transport Layer Security (TLS) – and its predecessor, Secure Sockets Layer (SSL), which is now deprecated by the Internet Engineering Task Force (IETF) – are cryptographic protocols that provide communications security over a computer network.
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Unix
Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.
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Unix security
Unix security refers to the means of securing a Unix or Unix-like operating system.
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Unix time
Unix time (also known as POSIX time or UNIX Epoch time) is a system for describing a point in time, defined as the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970,.
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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 (computing)
A user is a person who utilizes a computer or network service.
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Virtual private network
A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
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Wheel (computing)
In computing, the term wheel refers to a user account with a wheel bit, a system setting that provides additional special system privileges that empower a user to execute restricted commands that ordinary user accounts cannot access.
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Wireshark
Wireshark is a free and open source packet analyzer.
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Xinetd
In computer networking, xinetd (extended Internet daemon) is an open-source super-server daemon, runs on many Unix-like systems and manages Internet-based connectivity.
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References
[1] https://en.wikipedia.org/wiki/Unix_security
