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getty - Unix program running on a host computer that manages physical or virtual terminals

Beschreibung

Infobox

• Ken Thompson
• C
• UNIX-like systems

getty, short for "get tty"

• is a Unix program running on a host computer that manages physical or virtual terminals (TTYs).
• When it detects a connection, it prompts for a username and runs the 'login' program to authenticate the user.

Originally, on traditional Unix systems, getty handled connections to serial terminals (often Teletype machines) connected to a host computer.

• The tty part of the name stands for Teletype, but has come to mean any type of text terminal. One getty process serves one terminal.
• In some systems, for example, Solaris, getty was replaced by ttymon.

Personal computers running Unix-like operating systems, even if they do not provide any remote login services, may still use getty as a means of logging in on a local virtual console.

Instead of the login program, getty may also be set up by the system administrator to run any other program, for example pppd (point-to-point protocol daemon) to provide a dial-up Internet connection.

Anhang

Siehe auch

• Getty

• BusyBox, that provides a getty
• GNU Core Utilities (implements stty)
• util-linux provides agetty

Links

Weblinks

1. man|8|getty|FreeBSD
2. Text Terminal HOWTO from the Linux Documentation Project