The book of pf...

Christer Solskogen christer.solskogen at
Tue Jan 18 12:45:30 UTC 2011

On Tue, Jan 18, 2011 at 9:25 AM, Adam Vande More <amvandemore at> wrote:
> On Mon, Jan 17, 2011 at 10:37 PM, Modulok <modulok at> wrote:
>> List,
>> "The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall"
>> This book comes in two editions. The first was published in December
>> 2007, the second, November, 2010. Does anyone have this? And if so
>> would I be correct to get the first edition instead? I know FreeBSD's
>> pf lags being openBSD's, so I'm not sure which version of the book to
>> get, if either are applicable to the version of pf that FreeBSD runs?
>> (FreeBSD 8.1)
> I don't follow OpenBSD, but my understanding is there has been significant
> change between FreeBSD's version of PF and the current version in OpenBSD.
> According to the freebsd-pf@ list(which is maybe a better place for your
> question) PF version 4.5 is scheduled to appear in FreeBSD 9 so we'll still
> be well behind.  I would guess the previous version of the book has syntax
> and examples closer to what you'll be using if FreeBSD is your host although
> 2nd editions often have a lot of useful additions and corrections.

No. The second edition also includes the syntax for FreeBSD 8.x.(It
also includes the old sytnax for OpenBSD as well as the new syntax)


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