Date: Tue, 15 Oct 2002 20:57:23 +0700 From: budsz <budsz@kumprang.or.id> To: FreeBSD-Questions <freebsd-questions@FreeBSD.ORG> Subject: About rc.firewall Message-ID: <20021015135723.GA1427@kumprang.or.id>
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Hi,
I've already read some manual ipfw, firewall etc, but I can't found
explanation some variable in /etc/rc.firewall for example:
case ${firewall_type} in
[Oo][Pp][Ee][Nn]
Some rule
;;
*)
Some rule
;;
esac
I don't understand about [Oo][Pp][Ee][Nn], [Cc][Ll][Ee][Nn][Tt],
[Ss][Ii][Mm][Pp][Ee]...etc, Why we should write like this..? what
this mean..?, How this work?, Would somebody give me some URL about
this or something else.
TIA
--
budsz
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