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8. Putting it all together

This is an example rc.local script to start everything when your system boots. It will add spoofing protection in the kernel if you are using a 2.2 kernel, setup the masquerading firewall policies, and start the cipe interface(s).

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#!/bin/bash 
#4/4/99 
#an example rc.local script 
#Send questions or comments to acj@home.com 

echo 

#Set up spoof protection in kernel -- from IPChains HOWTO by Paul Russell 

#this is only for the newer 2.1/2.2 kernels 

#if [ -e /proc/sys/net/ipv4/conf/all/rp_filter ]; then 
#   echo -n "Setting up IP spoofing protection..." 
#   for f in /proc/sys/net/ipv4/conf/*/rp_filter; do 
#       echo 1 > $f 
#   done 
#   echo "done." 
#else 
#   echo PROBLEMS SETTING UP IP SPOOFING PROTECTION.  BE WORRIED. 
#   echo "CONTROL-D will exit from this shell and continue system startup." 
#   echo 
#   # Start a single user shell on the console 
#   /sbin/sulogin $CONSOLE 
#fi 

echo 

#Setup firewall policies 
if [ -x /etc/rc.d/rc.firewall ]; then 
        echo Setting up firewall packet filtering policies. 
        echo 
        . /etc/rc.d/rc.firewall 
fi 

#Start cipe interfaces 
if [ -x /etc/rc.d/rc.cipe ]; then 
        echo Starting VPN interfaces. 
        . /etc/rc.d/rc.cipe 
fi 

exit 0 

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