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. to visit www.excavatorinfo.com

1. WELCOME TO THE PROJECT
Title: Daemons in Linux Processes

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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.