/etc/rc2.d is the name given to the directory that contains symbolic links to UNIX SysV rc scripts for runlevel 2.
<h3>What is a directory service?</h3>
A directory service can be defined as a software system designed and developed to store, organize and provide end users with a name and an access to directory information, so as to effectively and efficiently unify (synchronize) all network resources.
In Computer networking, /etc/rc2.d is the name given to the directory that contains symbolic links to UNIX SysV rc scripts for runlevel 2.