Added PPP-and-SLIP.xml Modified PLIP.xml, PLIP and Samba.xml

Binh.

LDP/guide/docbook/Linux-Networking/PLIP.xml

@@ -3,7 +3,7 @@
 <title>PLIP</title>
 
 <para>
-plip (Parallel Line IP), is like SLIP, in that it is used for
+PLIP (Parallel Line IP), is like SLIP, in that it is used for
 providing a point to point network connection between two machines,
 except that it is designed to use the parallel printer ports on your
 machine instead of the serial ports (a cabling diagram in included in
@@ -182,4 +182,11 @@ Complete information about parallel port management is available in
 the file Documentation/parport.txt, part of your kernel sources.
 </para>
 
+·  PLIP information can be found in The Network Administrator Guide
+   <http://metalab.unc.edu/mdw/LDP/nag/nag.html>
+
+PLIP allows the cheap connection of two machines.
+It uses a parallel port and a special cable, achieving speeds of
+10kBps to 20kBps.
+	   
 </sect1>

LDP/guide/docbook/Linux-Networking/PPP-and-SLIP.xml

@@ -0,0 +1,16 @@
+<sect1 id="PPP-and-SLIP">
+
+<title>PPP and SLIP</title>
+
+<para>
+The Linux kernel has built-in support for PPP (Point-to-Point-
+Protocol) and SLIP (Serial Line IP). PPP is the most popular
+way individual users access their ISPs (Internet Service
+Providers). 
+
+·  Linux PPP HOWTO <http://metalab.unc.edu/mdw/HOWTO/PPP-HOWTO.html>
+
+·  PPP/SLIP emulator <http://metalab.unc.edu/mdw/HOWTO/mini/SLIP-PPP-
+   Emulator.html>
+
+</sect1>