I've had great success as a Linux newcomer using Paul Sery's book, "The Linux Network
Toolkit", It clearly explains how to implement IP Masquerading and basic packet
filter firewalls. As well, it gives foolproof (and I'm capable of being a fool)
examples and explanations about Samba. Highly worthwhile buy for new Linux networking
people.
The IP forwarding switch is in /etc/sysconfig/network file and setting it to "true" or
"yes" work (in RedHat releases). Without this flag set all IP forwarding attempts
fail miserably even though all the stars are lined up in the heavens. As a note to
the new, IP Masquerading will work fine in masquerading everything inside the IP
Masq'ed machine, but ready yourself for struggles with FTP and services that want to
connect with your machine(s) from the outside world. I'm currently thrashing with
getting these things running inside a twice-masqueraded firewall.
-----Original Message-----
From: Mindaugas Riauba [SMTP:[EMAIL PROTECTED]]
Sent: Tuesday, November 24, 1998 2:29 AM
To: Doug Lumpkin; [EMAIL PROTECTED]
Subject: Re: [masq] [masq] Horrible Problems with IP Masq
>I have placed these lines in my rc.local file (RH 5.1) and I have
>recompiled my kernel as instructed in the IPMASQ-HOWTO. But
>masquerading does not seem to work. I have set the default gateway on my
>windows machines and the network works OK. Is there any other files or
>settings I should check???
Maybe /etc/sysconfig/network and around. Somewhere here default RedHat
configuration disables ip forwarding.
Mindaugas
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