167 lines
2.8 KiB
HTML
167 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>Compiling a new kernel if needed</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
|
|
REL="HOME"
|
|
TITLE="Linux IP Masquerade HOWTO"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="Setting Up IP Masquerade"
|
|
HREF="c472.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="Setting Up IP Masquerade"
|
|
HREF="c472.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Checking your existing kernel for MASQ functionality"
|
|
HREF="ipmasq-compiling3.1.html"></HEAD
|
|
><BODY
|
|
CLASS="SECT1"
|
|
BGCOLOR="#FFFFFF"
|
|
TEXT="#000000"
|
|
LINK="#0000FF"
|
|
VLINK="#840084"
|
|
ALINK="#0000FF"
|
|
><DIV
|
|
CLASS="NAVHEADER"
|
|
><TABLE
|
|
SUMMARY="Header navigation table"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TH
|
|
COLSPAN="3"
|
|
ALIGN="center"
|
|
>Linux IP Masquerade HOWTO</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="c472.html"
|
|
ACCESSKEY="P"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 3. Setting Up IP Masquerade</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="ipmasq-compiling3.1.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="SECT1"
|
|
><H1
|
|
CLASS="SECT1"
|
|
><A
|
|
NAME="IPMASQ-COMPILING3.0"
|
|
></A
|
|
>3.1. Compiling a new kernel if needed</H1
|
|
><P
|
|
>If your private network contains any vital information, think carefully in
|
|
terms of SECURITY before implementing IP Masquerade. By default, IP MASQ
|
|
becomes a GATEWAY for you to get onto the Internet, but it also can allow
|
|
someone from the Internet to possibly get into your internal network.</P
|
|
><P
|
|
> <STRONG
|
|
> Once you have IP MASQ functioning, it is HIGHLY recommended for the user to
|
|
implement a STRONG IPFWADM/IPCHAINS firewall ruleset. Please see
|
|
<A
|
|
HREF="stronger-firewall-examples.html#RC.FIREWALL-IPTABLES-STRONGER"
|
|
>Section 6.4.1</A
|
|
>,
|
|
<A
|
|
HREF="stronger-firewall-examples.html#RC.FIREWALL-IPCHAINS-STRONGER"
|
|
>Section 6.4.2</A
|
|
> and
|
|
<A
|
|
HREF="stronger-firewall-examples.html#RC.FIREWALL-IPFWADM-STRONGER"
|
|
>Section 6.4.3</A
|
|
> located below for more details.
|
|
</STRONG
|
|
></P
|
|
></DIV
|
|
><DIV
|
|
CLASS="NAVFOOTER"
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"><TABLE
|
|
SUMMARY="Footer navigation table"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="c472.html"
|
|
ACCESSKEY="P"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="index.html"
|
|
ACCESSKEY="H"
|
|
>Home</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="ipmasq-compiling3.1.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Setting Up IP Masquerade</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="c472.html"
|
|
ACCESSKEY="U"
|
|
>Up</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Checking your existing kernel for MASQ functionality</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |