Some Things that Shorewall Cannot Do
Tom
Eastep
2003-10-07
2003
Thomas M Eastep
Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version
1.2 or any later version published by the Free Software Foundation; with
no Invariant Sections, with no Front-Cover, and with no Back-Cover
Texts. A copy of the license is included in the section entitled
GNU Free Documentation License
.
Shorewall Cannot:
Be used to filter traffic through a Layer 2 Bridge
Act as a Personal Firewall
that allows internet
access by application.
Be used with an Operating System other than Linux (version
>= 2.4.0)
Do content filtering:
HTTP - better to use Squid
for that.
Email -- Install something like Postfix on your firewall and
integrate it with SpamAssassin
and Amavisd-new.
In Addition:
Shorewall does not contain any support for Netfilter Patch-O-Matic
features -- Shorewall only supports features from released kernels.