214 lines
3.7 KiB
HTML
214 lines
3.7 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Introduction</TITLE
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.63
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REL="HOME"
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TITLE="VPN PPP-SSH Mini-HOWTO"
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TITLE="VPN PPP-SSH Mini-HOWTO"
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TITLE="Introduction"
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HREF="introduction.html"></HEAD
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COLSPAN="3"
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>VPN PPP-SSH Mini-HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="introduction.html"
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>Next</A
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><HR
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="INTRO"
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>1. Introduction</A
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></H1
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><P
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>The technique described in this HOWTO uses PPP to convert packets
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into a character stream and SSH to encrypt it
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and transmit it to the remote computer. Most system administrators
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are well acquainted with the tools and configuration files needed
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to set up a PPP-SSH VPN.</P
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><P
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>While it works well with moderate loads over a reliable
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connection, be warned that a PPP-SSH VPN is subject to
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some scalability problems. I've included a list of benefits in
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<A
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HREF="introduction.html#BENEFITS"
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>Section 2.1</A
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> and drawbacks in
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<A
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HREF="introduction.html#DRAWBACKS"
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>Section 2.2</A
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> so you can decide
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for yourself if a PPP-SSH VPN is a good fit for your needs.</P
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN25"
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>1.1. Copyright</A
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></H2
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><P
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>Copyright © 2001 Scott Bronson. This document may be distributed
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under the terms set forth in the GNU Free Documentation License.
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A copy of this license can be found at
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<A
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HREF="http://www.fsf.org/licenses/fdl.html"
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TARGET="_top"
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>http://www.fsf.org/licenses/fdl.html</A
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>.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN29"
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>1.2. Disclaimer</A
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></H2
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><P
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>You use the information in this document entirely at your own risk.
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I especially make no guarantees as to the legality or cryptographic strength
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of the techniques described here.
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If you feel that you cannot take full responsibility
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for your setup, then you need to put
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down this HOWTO and hire one of the many excellent companies who
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provide accountable, professional VPN service.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN32"
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>1.3. Credits</A
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></H2
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><P
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>I took some notes as I adapted Bart Trojanowski's excellent
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<A
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HREF="http://www.jukie.net/~bart/security/vpn/"
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TARGET="_top"
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>instructions</A
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> to a newer version of PPP running on
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my Debian system.
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A few weeks later, I converted the notes into SGML.
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Eventually, those evolved into this HOWTO.</P
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><P
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>Bart's instructions were based on Arpad Magosanyi's
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good but now fairly dated
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<A
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HREF="http://www.linuxdoc.org/HOWTO/mini/VPN.html"
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TARGET="_top"
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>VPN Mini-HOWTO</A
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>.
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If you run into troubles and my document doesn't seem to help,
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or if you're running an older version of the Linux kernel or PPP,
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you'll definitely want to give his HOWTO a read.</P
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></DIV
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></DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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WIDTH="100%"
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CELLPADDING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="index.html"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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>Home</A
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="introduction.html"
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>Next</A
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></TR
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><TR
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WIDTH="33%"
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VALIGN="top"
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>VPN PPP-SSH Mini-HOWTO</TD
|
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Introduction</TD
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></TR
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></BODY
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> |