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Linux: Files in /etc/rc*.d directories (KB)

Information

Severity

Severity

Informational

Family

Family

Policy

CVSSv2 Base

CVSSv2 Base

0.0

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:H/Au:S/C:N/I:N/A:N

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

Runlevels are a concept from UNIX System V used by the init daemon or other system initialisation system to define modes of system operation. Eight runlevels are permitted, the first seven are numbered 0-6 and the eighth is named S or s (both are permitted). Services and other system components are said to exist in one or more runlevels. When switching from one runlevel to another, the services that should not exist in the new runlevel are stopped and the services that only exist in the new runlevel are started. This is performed by the /etc/init.d/rc script executed on a change of runlevel (by jobs run on the runlevel event in the Upstart system). This script examines symlinks in the /etc/rc?.d directories, symlinks beginning K are services to be stopped and symlinks beginning S are services to be started. Note: This script only stores information for other Policy Controls.