Daemons in linux processes
- 1. WELCOME TO THE PROJECT Title: Daemons in Linux Processes
- 2. This Photo by Unknown author is licensed under CC BY. A daemon is a type of program on Unix-like operating systems that runs unobtrusively in the background, rather than under the direct control of a user, waiting to be activated by the occurrence of a specific event or condition Almost all daemons have names that end with the letter "d". For example, httpd the daemon that handles the Apache server, or, sshd which handles SSH remote access connections. Linux often start daemons at boot time. Shell scripts stored in /etc/init.d directory are used to start and stop daemons.
- 3. There are three basic types of processes in Linux: Interactive......interactive processes are run interactively by a user at the command line Batch.....batch processes are submitted from a queue of processes and are not associated with the command line; they are well suited for performing recurring tasks when system usage is otherwise low. Daemon.....daemons are usually generated as processes. A process is an executing instance of a program. Processes are managed by the kernel which assigns each a unique process identification number (PID).
- 5. The KILLING of a daemon kill – Kill a process by ID #kill -9 3827 killall – Kill a process by name #killall -15 3827 9 is the SIGKILL and 15 is the SIGTERM
- 6. This Photo by Unknown author is licensed under CC BY-SA.