how can i load this on boot up

[dekcool]

hi!

how can i load this on boot up

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echo "1" > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
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any inputs will appreciate, thanks in advance

____________________________________________________
Invest your time in learning, Not just practicing.

DEK

 

[pupu]

It depends on your distribution. Check /etc/rc.d and/or /etc/init.d directories.

 

[tarn]

Ok if your Red Hat 7.2 -> then:

Add the following lines to the bottom of the /etc/rc.local file

# turn on ip forwarding to enable masquarade to work
/bin/echo 1 > /proc/sys/net/ipv4/ip_forward

look in /etc/sysconfig/ for a file "firewall" or "iptables" and add the iptables rule there.

Make sure that iptables is enabled a init with: chkconfig --list iptables.

Good Luck
Laurie.

 

[clonny2]

Depending on which distro, make sure that the network script is not doing something also.

On RH9 I wanted to do the same thing, so I put the echo in rc.local but would not take. After examing the /etc/rc.d/init.d/network script I found that the script was always putting a 0 to turn off forwarding.

 

[dekcool]

hi!

tarn thanks

but i dont get what you mean could you more elaborate thanks again iam very new with linux
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look in /etc/sysconfig/ for a file "firewall" or "iptables" and add the iptables rule there.

Make sure that iptables is enabled a init with: chkconfig --list iptables.

------



____________________________________________________
Invest your time in learning, Not just practicing.

DEK

 

[tarn]

Sorry I should have been more specific 'maybe'

In /etc/sysconfig/ there may be a file called iptables (sorry in my test server firewall is a sym link to iptables), now in /etc/rc.d/init.d/ there is a start script for iptables that uses that file for iptables configuration: see `more /etc/rc.d/init.d/iptables` (so when iptables is started then it looks for /etc/sysconfig/iptables and uses(implements) the rules from within there).

So if it does not exist then create it, add in your rule and restart iptables with `/etc/rc.d/init.d/iptables restart`

Now on Red Hat there is a script that will setup your start scripts called chkconfig, its simple to use but too long for me to document here see `man chkconfig`

I hope that clears it up?

Good Luck
Laurie.