Re: IPTABLES question

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On 25 Feb 2003 09:07:30 +0930, Iain Buchanan wrote:

> On Tue, 2003-02-25 at 03:19, Leonard Miller wrote:
> > How do I allow incoming http port 80 from only one machine and
> > deny all others? Is it easy to turn off when testing is finished?
> 
> To make it more permanent, put in /etc/sysconfig/iptables something like
> this (note the default policy is drop, and packets are logged so you can
> see who's being bounced).

- -snip-

Editing /etc/sysconfig/iptables is not such a good idea because it
might trigger bugs in iptables' parser. Shouldn't happen too often.
But also with regard to type errors, I wouldn't edit the file
manually. The format of the file is the output of "iptables-save"
and the input of "iptables-restore". Hence I recommend you insert
rules on the command-line or with an ordinary shell script and then
run "service iptables save" to save them to /etc/sysconfig/iptables.
Then the rest applies what Iain has written.

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