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This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
The System Security Services Daemon (SSSD) is software originally developed for the Linux operating system (OS) that provides a set of daemons to manage access to remote directory services and authentication mechanisms. [1] The beginnings of SSSD lie in the open-source software project FreeIPA (Identity, Policy and Audit). [2]
SSH uses public-key cryptography to authenticate the remote computer and allow it to authenticate the user, if necessary. [3]SSH may be used in several methodologies. In the simplest manner, both ends of a communication channel use automatically generated public-private key pairs to encrypt a network connection, and then use a password to authenticate the user.
Secure Shell (SSH) is a protocol allowing secure remote login to a computer on a network using public-key cryptography.SSH client programs (such as ssh from OpenSSH) typically run for the duration of a remote login session and are configured to look for the user's private key in a file in the user's home directory (e.g., .ssh/id_rsa).
The term SFTP can also refer to Secure file transfer program, a command-line program that implements the client part of this protocol. As an example, the sftp program supplied with OpenSSH implements this. [10] Some implementations of the scp program support both the SFTP and SCP protocols to perform file transfers, depending on what the server ...
Name macOS Windows Cygwin BSD Linux Solaris Java OpenVMS z/OS AmigaOS AIX HP-UX iOS [a] webOS Android; Apache MINA SSHD : Yes Yes No Yes Yes Yes Yes No No No Yes Yes No No
Linux HP-UX iOS Maemo macOS Solaris OpenSSH [b] The OpenBSD project 1999-12-01 [c] AIX 9.9 [6] 2024-09-19 BSD: Android BSD Cygwin Linux HP-UX iOS Maemo OpenVMS macOS Solaris Windows z/OS PuTTY: Simon Tatham: 1999-01-22 BSD 0.82 [7] 2024-11-27 MIT: Linux macOS Solaris Windows SecureCRT: VanDyke Software 1998–06 Linux 9.3.1 [8] 2022-12-06 ...
systemd is a software suite that provides an array of system components for Linux [7] operating systems. The main aim is to unify service configuration and behavior across Linux distributions. [8] Its primary component is a "system and service manager" — an init system used to bootstrap user space and manage user processes.