+<h2>What to list as dependencies II</h2>
+
+<p>In the common case, the start and stop dependencies are identical.
+
+<p>Prefer virtual dependencies over specific dependencies
+
+<h2>Virtual facilities</h2>
+
+<p>Linux Software Base version 3.2 define these virtual facilities:
+
+<dl>
+
+<dt>$local_fs
+<dd>all local file systems are mounted.
+
+<dt>$network
+<dd>basic networking support is available. Example: a server program
+could listen on a socket.
+
+<dt>$portmap
+<dd>daemons providing SunRPC/ONCRPC portmapping service as defined in
+RFC 1833: Binding Protocols for ONC RPC Version 2 (if present) are
+running.
+
+<dt>$remote_fs
+<dd>all remote file systems are available. In some configurations, file
+systems such as /usr may be remote. Many applications that require
+$local_fs will probably also require $remote_fs.
+
+<dt>$time
+<dd>the system time has been set, for example by using a network-based
+time program such as ntp or rdate, or via the hardware Real Time
+Clock.
+
+<dt>$syslog
+<dd>system logger is operational.
+
+<dt>$named
+<dd>IP name-to-address translation, using the interfaces described in
+this specification, are available to the level the system normally
+provides them. Example: if a DNS query daemon normally provides this
+facility, then that daemon has been started.
+
+</dl>
+
+<p>All of these represent points in time during boot and shutdown.