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The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
NetBSD's pkgsrc ports collection is distinctive in that it aims to be portable and is usable on a number of operating systems aside from NetBSD itself, including the other BSDs, SmartOS/illumos, macOS, [3] MINIX 3, Linux [4] and other Unix-likes. pkgsrc was created in August 1997 based on the existing FreeBSD ports system. It follows a ...
An ephemeral port is a communications endpoint of a transport layer protocol of the Internet protocol suite that is used for only a short period of time for the duration of a communication session. Such short-lived ports are allocated automatically within a predefined range of port numbers by the IP stack software of a computer operating system.
Historically, MAC was strongly associated with multilevel security (MLS) as a means of protecting classified information of the United States.The Trusted Computer System Evaluation Criteria (TCSEC), the seminal work on the subject and often known as the Orange Book, provided the original definition of MAC as "a means of restricting access to objects based on the sensitivity (as represented by ...
Mac OS X Server is a series of discontinued Unix-like server operating systems developed by Apple Inc. based on macOS.It provided server functionality and system administration tools, and tools to manage both macOS-based computers and iOS-based devices, network services such as a mail transfer agent, AFP and SMB servers, an LDAP server, and a domain name server, as well as server applications ...
MacPorts installs software on top of the operating system, providing newer versions of pre-installed packages or software that is not included in macOS. This is in contrast to other package management systems, such as APT and DNF, that are part of the operating system. For this reason, MacPorts is sometimes known as an overlay distribution.
Any number of additional repositories can be added to APT's sources.list configuration file (/etc/apt/sources.list) and then be queried by APT. Graphical front ends often allow modifying sources.list more simply (apt-setup). Once a package repository has been specified (like during the system installation), packages in that repository can be ...
List TCP- and UDP-based protocols: List of TCP and UDP port numbers: Automation: List of automation protocols: Bluetooth: List of Bluetooth protocols: File transfer: Comparison of file transfer protocols: Instant messaging: Comparison of instant messaging protocols: Internet Protocol: List of IP protocol numbers: Link aggregation: List of ...