Date: Thu, 16 Sep 2004 03:45:35 -0000 From: "Max Laier" <max@love2party.net> To: <pf4freebsd@freelists.org> Subject: [pf4freebsd] Re: Whitelist IPs via pf 1.61 Message-ID: <002201c363a3$5d01e450$01000001@max900> References: <3F3D9534.6080802@qubix.ca>
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This can be done in various ways, the most powerfull and yet easy way is to use a table: >>> pf.conf <<< table <sufers> persist file "/etc/port80.allow" # block here pass out on $ext_if from <surfers> to any port 80 >>> pf.conf <<< This will read all the entries in /etc/port80.allow to the table as you load the ruleset. You can add hosts or subnets temporaly by issueing: #pfctl -t surfers -Tadd 65.192.5.1 or #pfctl -t surfers -Tadd 66.192.5.0/24 You can even add negated entries, if you want to allow a whole subnet, but one or two hosts: #pfctl -t surfers -Tadd 65.192.6.0/24 #pfctl -t surfers -Tadd !65.192.6.13 will allow all hosts from 65.192.6.0/24 but disallow 65.192.6.13 The contens of the table can be viewed by: #pfctl -t surfers -Tshow More information at: pfctl(8) http://www.openbsd.org/cgi-bin/man.cgi?query=pfctl&sektion=8&manpath=OpenBSD+3.3 pf.conf(5) http://www.openbsd.org/cgi-bin/man.cgi?query=pf.conf&sektion=5&manpath=OpenBSD+3.3 And the pf-faq: http://www.openbsd.org/faq/pf/tables.html > Hello. This is my first time posting to this mailing list, but it looks > like I would probably get some good ideas/answers here. Anyway, I have > a specific subnet (65.192.x.x) blocked from accessing port 80, but I > want to "whitelist" (if that is the proper term) and have it be able to > access port 80. So basically, I want the whole subnet blocked still, > except if I can whitelist one IP to allow traffic to/from port 80 from > it. Is this possible? I'm running pf 1.61 and FreeBSD 5.1-CURRENT > (last rebuilt world on Aug. 15, 2003). > > Thanks > > > >
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