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39 lines
1.7 KiB
Text
39 lines
1.7 KiB
Text
arno-iptables-firewall is a front-end for iptables. Its configuration script
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will set up a secure and restrictive firewall by just asking a few questions.
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This includes configuring internal networks for Internet access via NAT and
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potential network services like http or ssh. Moreover, it provides advanced
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additional features that can be enabled in the well documented configuration
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file.
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NOTE - The setup script will *not* run automatically after your package was
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installed. In order to run the script you have to issue the following command:
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# arno-iptables-firewall-configure
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To enable the startup of the firewall at boot-time you need to create a symlink
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as follows (in order to disable it, either remove the symlink or "chmod -x" the
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startup script):
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# ln -sv /etc/rc.d/rc.arno-iptables-firewall /etc/rc.d/rc.firewall
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# chmod +x /etc/rc.d/rc.arno-iptables-firewall
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You can also start the firewall manually with one of the following commands:
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# /etc/rc.d/rc.arno-iptables-firewall start
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# arno-iptables-firewall start
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IMPORTANT - A few security notes from the upstream author:
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1) If possible make sure that the firewall is started before the (ADSL) Internet
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connection is enabled. For a ppp-interface that doesn't exist yet you can use
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the wildcard device called "ppp+" (but you can only use ppp+ if there aren't any
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other ppp interfaces).
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2) Don't change any (security) settings ('EXPERT SETTINGS') if you don't really
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understand what they mean. Changing them anyway could have a big impact on the
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security of your machine.
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3) A lot of people complain that their server stopped working after installing
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the firewall. This is the *correct* behaviour for a firewall: blocking *all*
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incoming traffic by default. Configure your OPEN_TCP (e.g.) accordingly.
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