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Date:      Tue, 11 Apr 2017 22:51:37 +0200
From:      Polytropon <freebsd@edvax.de>
To:        Miha Smrekar <smrekar.miha@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD firewall configuration
Message-ID:  <20170411225137.074040d3.freebsd@edvax.de>
In-Reply-To: <CAOVvEHXF6zN4FYHeXqAm8hRRgf9DgUZkQESkP8098PBFKA5QsA@mail.gmail.com>
References:  <CAOVvEHXi2V89bF1iD-718v7V=thFfR4c-h1KDxoctoe207qwLQ@mail.gmail.com> <20170407210017.0c2c2cbb.freebsd@edvax.de> <CAOVvEHVukRGa1kfGW=MNp2DRfzE3voOe880LwZbH-MqUDsmTdg@mail.gmail.com> <20170410213747.c22fffa7.freebsd@edvax.de> <CAOVvEHXF6zN4FYHeXqAm8hRRgf9DgUZkQESkP8098PBFKA5QsA@mail.gmail.com>

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On Tue, 11 Apr 2017 09:44:12 +0200, Miha Smrekar wrote:
> Hi,
> 
> my pf.conf file looks like that now:
> 
> 
> *wan_if="em1"lan_if="em0"*
> 
> *block all*
> 
> *pass in on $wan_if from $wan_if:network to $int_if:network port 1024 keep
> state*
> 
> *pass in on $wan_if from $wan_if:network to $int_if:network port 443 keep
> state*
> 
> *pass in on $wan_if from $wan_if:network to $int_if:network port 80 keep
> state*
> 
> *pass out on $int_if from $ext_if:network to $int_if:network keep state*

Did your mailer add some stupid formatting characters? Are you
maybe using some strange web mailer feature? Those asterisks
look very strange... Allow me to re-format:


wan_if="em1"
lan_if="em0"
block all
pass in on $wan_if from $wan_if:network to $int_if:network port 1024 keep state
pass in on $wan_if from $wan_if:network to $int_if:network port 443 keep state
pass in on $wan_if from $wan_if:network to $int_if:network port 80 keep state
pass out on $int_if from $ext_if:network to $int_if:network keep state

First thing I've noticed: the last line contains $ext_if, but you
are using $wan_if correctly in the previous lines; same for $lan_if
and $int_if. Naming _must be_ consistent.

Example:

wan_if="em1"
lan_if="em0"
block all
pass in on $wan_if from $wan_if:network to $lan_if:network port 1024 keep state
pass in on $wan_if from $wan_if:network to $lan_if:network port 443 keep state
pass in on $wan_if from $wan_if:network to $lan_if:network port 80 keep state
pass out on $lan_if from $wan_if:network to $lan_if:network keep state

I hope I didn't make a mistake here. :-)



> I've configured it like that because I wanted to forward all the incoming
> traffic (through ports 80, 443 and 1024) to other internal interface
> (through any port).
> But now I've tried to ping specific port and only port 1024 is accesible
> and open.

Yes, because the ruleset seems to be damaged (inconsistent).



> Did I configure it right?

Have a look at the maning convention for your settings and make
it consistent. Everything else looks valid. Going with $wan_if
and $lan_if is probably a good idea.

By the way, this is a thing you quite often find when adapting
an example to your specific needs - there are sometimes leftovers
from the original wording. ;-)



-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...



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