Re: pf firewall question

2006-05-02 Thread Paulo Rodriguez

Apologies accepted.

bofh schreef:

On 5/1/06, Lars Hansson <[EMAIL PROTECTED]> wrote:
  

On Tuesday 02 May 2006 05:31, bofh wrote:



I must say though, a well designed gui can be a great help in managing a
  

[...]

  

not believe him.  Now that I'm managing a small bunch of checkpoint
  

boxes


with a few hundred rules, and some vpns, it *does* make things easier.
  

Maybe that says more about the design of Checkpoint than it does about pf.




Hence that bit about a well designed gui.  Not all guis are designed equally
well.  We just had a nortel sales guy tell us that their new ($$) contivity
admin software is "just like checkpoint".  We tried it.  OK, it was like
checkpoint just like some ugly drag queen[1] is just like a supermodel
because he put on a bikini.  Yucks.

[1]  Apologies to anyone who has hots for ugly drag queens.




Re: pf firewall question

2006-05-01 Thread bofh
On 5/1/06, Lars Hansson <[EMAIL PROTECTED]> wrote:
>
> On Tuesday 02 May 2006 05:31, bofh wrote:
>
> > I must say though, a well designed gui can be a great help in managing a
>
[...]

> > not believe him.  Now that I'm managing a small bunch of checkpoint
> boxes
> > with a few hundred rules, and some vpns, it *does* make things easier.
>
> Maybe that says more about the design of Checkpoint than it does about pf.


Hence that bit about a well designed gui.  Not all guis are designed equally
well.  We just had a nortel sales guy tell us that their new ($$) contivity
admin software is "just like checkpoint".  We tried it.  OK, it was like
checkpoint just like some ugly drag queen[1] is just like a supermodel
because he put on a bikini.  Yucks.

[1]  Apologies to anyone who has hots for ugly drag queens.



Re: pf firewall question

2006-05-01 Thread Lars Hansson
On Tuesday 02 May 2006 05:31, bofh wrote:

> I must say though, a well designed gui can be a great help in managing a
> set of firewalls, or a firewall with complex rules.  I like pf for the
> cleanliness of syntax and simplicity of doing things, but the guy who ran
> the checkpoint firewalls for 50+ sets of firewalls and 2000+ rules across
> them all told me he would not have been able to manage it with pf, I did
> not believe him.  Now that I'm managing a small bunch of checkpoint boxes
> with a few hundred rules, and some vpns, it *does* make things easier.

Maybe that says more about the design of Checkpoint than it does about pf.

---
Lars Hansson



Re: pf firewall question

2006-05-01 Thread bofh
On 4/30/06, Stuart Henderson <[EMAIL PROTECTED]> wrote:
>
> On 2006/04/30 06:34, S t i n g r a y wrote:
> > Now what i want to know , maybe is O T in this list
> > but what is the diffrence , i mean pf in openBSD is
> > refered to as a firewall for home or small offices ?
> > why is that , i mean what is the criteria of an
> > enterprise firewall what is the diffrence between pf &
> > MS ISA / cisco pix or checkpoint ?
> > performance ? stability or features ?
>
> marketing and a manager-friendly gui.



I must say though, a well designed gui can be a great help in managing a set
of firewalls, or a firewall with complex rules.  I like pf for the
cleanliness of syntax and simplicity of doing things, but the guy who ran
the checkpoint firewalls for 50+ sets of firewalls and 2000+ rules across
them all told me he would not have been able to manage it with pf, I did not
believe him.  Now that I'm managing a small bunch of checkpoint boxes with a
few hundred rules, and some vpns, it *does* make things easier.

I know about the traditional argument of making complex things too simple,
but simplifying things for an experienced admin is good thing.  Lusers
shooting themselves in the foot is not my problem.

And anyone thinking of implementing an ISA server is simply asking for it
:)  PIX is another bother.  Fantastic idea, copying checkpoint's gui.  But
when you use it, and it tells you, "this feature is not available in the
gui", that rapidly becomes old.

As far as performance goes, anyone implementing any kind of firewalls for a
business should be using hardware that's relatively recent - unless you have
ungodly amounts of specialized rules, performance should not be an issue.



Re: pf firewall question

2006-05-01 Thread Murali Raju

On 4/30/06, Stuart Henderson <[EMAIL PROTECTED]> wrote:

On 2006/04/30 06:34, S t i n g r a y wrote:
> Now what i want to know , maybe is O T in this list
> but what is the diffrence , i mean pf in openBSD is
> refered to as a firewall for home or small offices ?
> why is that , i mean what is the criteria of an
> enterprise firewall what is the diffrence between pf &
> MS ISA / cisco pix or checkpoint ?
> performance ? stability or features ?

marketing and a manager-friendly gui.



To add more...I've used PF/CARP to deploy perimeter defense for
companies with users ranging from 1000+ to 4000+. Does that tell you
something?

Please don't fall into the trap of marketing crap like "Application
Layer Checks",  "Deep Packet Inspection", etc. Nothing more than
proxies with too many false positives. Again, you can check if the
protocol abides by RFCs with enormous expense, but what use is it when
the embedded exploit code is not fully checked within the payload?
(check the archives why PF does not do this).

PF is powerful, efficient, and keeps it simple...you are better off
handling Application Layer checks closer to the crappy application
that is full of bugs..

_Raju

--
May the packets be with you.



Re: pf firewall question

2006-04-30 Thread Tony
S t i n g r a y wrote:
> 
> Now what i want to know , maybe is O T in this list
> but what is the diffrence , i mean pf in openBSD is
> refered to as a firewall for home or small offices ?
> why is that , i mean what is the criteria of an
> enterprise firewall what is the diffrence between pf &
> MS ISA / cisco pix or checkpoint ? 
> performance ? stability or features ?

pf in OpenBSD is what the developers use to protect their
own systems. As such it is probably better and stronger
than anything you can buy. 

What you can buy is a high price tag, maybe some hand-holding,
and probably a false sense of security.
There may be some features that are worth it. Maybe, Depends.

Documentation? Start with man 4 pf
There is also a PF User's Guide.



Re: pf firewall question

2006-04-30 Thread Joachim Schipper
On Sun, Apr 30, 2006 at 06:34:09AM -0700, S t i n g r a y wrote:
> Now what i want to know , maybe is O T in this list
> but what is the diffrence , i mean pf in openBSD is
> refered to as a firewall for home or small offices ?
> why is that , i mean what is the criteria of an
> enterprise firewall what is the diffrence between pf &
> MS ISA / cisco pix or checkpoint ? 
> performance ? stability or features ?
> 
> regards

pf is a fine packet filter, and is very useful in any situation, inside
and outside the big corporations. It can also do traffic
shaping/queueing via ALTQ.

It is not, however, an application-level proxy (Squid, Apache's
mod_proxy, ftp-proxy), an IDS (Snort), or high-availability system
(carp, the various routing daemons, some application-level proxies).

Finally, as pointed out, it doesn't have a snazzy GUI, though there are
some projects to provide one[1].

Joachim

[1] Whether or not that is actually a good idea is not relevant to this
discussion.



Re: pf firewall question

2006-04-30 Thread Nick Holland

S t i n g r a y wrote:

Now what i want to know , maybe is O T in this list
but what is the diffrence , i mean pf in openBSD is
refered to as a firewall for home or small offices ?
why is that , i mean what is the criteria of an
enterprise firewall what is the diffrence between pf &
MS ISA / cisco pix or checkpoint ? 
performance ? stability or features ?


I find it really irritating when people make statements like that
without citing references.

I'm guessing you are reading this:
   http://www.openbsd.org/faq/pf/example1.html

This is an EXAMPLE CONFIGURATION for a home or small office.  It is
a starting point to understanding PF.  It touches upon a few of PFs
features, and helps people understand a simple configuration.
If I'd given you a ten-thousand line pf.conf file, you probably would
have said, "PF is too complicated for me".

"Enterprise products" usually just means you got money to waste on
inferior crap, like Cisco or MS ISA or Checkpoint.  People who have
a job to do other than padding their resume will look at actual
features, not buzzword compliance.

Here are two differences between PF and commercial products...
* One is created by professional networkers.  One is written by
amateurs.
   Commercial firewall products are written by amateurs.  People who
don't actually work in the networking business.  They work in labs,
they take feedback from people who actually use the products in real
world environments, but they by definition are not on the front lines.
   PF is written and maintained by people on the front lines.  For
them, it isn't about waiting to see if enough customers demand a fix,
it's their butts, their business that's on the line.  It gets fixed or
improved QUICKLY.

* One has deliberate limits put in place, to make sure you have to pay
more as your needs increase.  If you live by selling products, the
last thing you want to do is have a product that just works without
needing additional upgrades and support and replacement when your
needs grow (=you can afford to pay more).
  The other has no deliberate limits...costs nothing to evaluate,
costs nothing to have a spare for testing ideas on, can be in your
staff's home's for more practice, etc.

Nick.



Re: pf firewall question

2006-04-30 Thread Shane J Pearson

On 2006.04.30, at 11:34 PM, S t i n g r a y wrote:


enterprise firewall what is the diffrence between pf &
MS ISA / cisco pix or checkpoint ?
performance ? stability or features ?


Marketing which is designed to put a fright into people who have  
responsibility for systems and data which are not theirs. That  
marketing then takes the frightened IT manager and gives them the  
warm fuzzies by talking about enterprise level support, SLA's,  
industry standards, well chosen (and seemingly bogus) TCO case  
studies and sometimes horror stories of people who did not choose to  
use them.


It is all bullshit though. Because all that is designed to get your  
money and the enterprise systems cost in a big way... then they start  
talking about on-going support.


I've worked in some places which had 5 figure (AU) support contracts  
for firewall, IDS, etc and the systems were flakey (reboot every few  
days to weeks!), the phone support was shit and the people that came  
out were clueless.


The difference is marketing targeted to the people that matter to the  
vendor. The easily frightened managers and not the nerdy types who  
would rather put together a couple of decent quality machines with  
OpenBSD, pf and CARP, etc.



Shane



Re: pf firewall question

2006-04-30 Thread Henrik Enberg
S t i n g r a y <[EMAIL PROTECTED]> writes:

> Now what i want to know , maybe is O T in this list but what is the
> diffrence , i mean pf in openBSD is refered to as a firewall for home
> or small offices ?

No it isn't.  The FAQ merely contains an example of how to use PF as a
home or small office firewall.



Re: pf firewall question

2006-04-30 Thread Stuart Henderson
On 2006/04/30 06:34, S t i n g r a y wrote:
> Now what i want to know , maybe is O T in this list
> but what is the diffrence , i mean pf in openBSD is
> refered to as a firewall for home or small offices ?
> why is that , i mean what is the criteria of an
> enterprise firewall what is the diffrence between pf &
> MS ISA / cisco pix or checkpoint ? 
> performance ? stability or features ?

marketing and a manager-friendly gui.



pf firewall question

2006-04-30 Thread S t i n g r a y
Now what i want to know , maybe is O T in this list
but what is the diffrence , i mean pf in openBSD is
refered to as a firewall for home or small offices ?
why is that , i mean what is the criteria of an
enterprise firewall what is the diffrence between pf &
MS ISA / cisco pix or checkpoint ? 
performance ? stability or features ?

regards


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