On Thu, 11 May 2000, Hugo Bouckaert wrote:
> Hi
>
> Is there a way to restrict access to a particular machine based on the
> ethernet card addresses of machines trying to make the connection? The
> machine I want to limit access to runs linux RedHat 6.0.
>
> I would like to limit access to this machine so only computers with
> specified ethernet card addresses can make a connection. The limitation
> should apply to ssh, telnet, rlogin, ftp and also pop3 and smtp mail
> services.
>
> As ssh, telnet and rlogin are overlapping services, I could disable
> telnet and rlogin (on the machine I want to protect) and only develop
> this system for ssh. That leaves such a system to be implemented for ssh
> and mail services. Does anyone know how this can be implemented?
>
> Any help (and if possible, pointers to detailed instruction pages) would
> be most appreciated.
>
> Thanks very much.
>
> Hugo
>
Hugo,
What you are looking for is provided by tcp wrappers, and by
IP chains. For tcp wrappers, try man hosts.allow and man hosts_options.
For IP chains, you can try man ipchains, or read any of the firewall
documentation.
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
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