[dba-Tech] Software Firewalls

Mitsules, Mark Mark.Mitsules at ngc.com
Tue Dec 7 11:38:43 CST 2004


John, Drew, et. al.,

Of course you're right regarding a hardware firewall.

I guess my point was...with the software variant, I don't have to worry
about constantly opening and closing ports, or remembering which software
uses which port, or worry whether opening a port for one piece of software
will inadvertently open it for another piece of software for which I did not
intend...I don't even need to know what a port is.

For a significant number of users, having the ability to grant software, by
name, access to the LAN or the internet via a simple GUI is about as easy as
it gets and is arguably "good enough".

Mark



-----Original Message-----
From: John W. Colby [mailto:jwcolby at colbyconsulting.com] 
Sent: Tuesday, December 07, 2004 12:13 PM
To: 'Discussion of Hardware and Software issues'
Subject: RE: [dba-Tech] Software Firewalls


In fact a hardware firewall usually does everything that a software firewall
does, plus more.  It is unusual for example for software firewalls to do
stateful packet inspection.  Doing so is extremely processor intensive.  A
good hardware firewall has a co-processor out in the router that does that
stuff and offloads the workstation from doing that.  IF you have a good
hardware firewall, and the cheaper routers are NOT firewalls or are very
limited firewalls, then you truly do not need a software firewall.  I know
of nothing that a software firewall does that a good hardware firewall
cannot be made to do.  

Furthermore, the hardware firewall can be made to do it for ALL workstations
at one fell swoop, vs. having to write rules and get them applied to each
and every workstation's software firewall.

I am NOT recommending that everyone out there get rid of their zonealarm.  I
am saying however that if you spend the bucks on a good router with a good
hardware firewall built into it, and you set it up correctly, then you can
safely get rid of Zonealarm (or whatever you use).

John W. Colby
www.ColbyConsulting.com 

Contribute your unused CPU cycles to a good cause:
http://folding.stanford.edu/

-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Mitsules, Mark
Sent: Tuesday, December 07, 2004 12:03 PM
To: 'Discussion of Hardware and Software issues'
Subject: RE: [dba-Tech] Software Firewalls


Arthur,

I concur with Bobby.  Regardless of Drew's feelings on the subject, or for
that matter Bryan's situation, I believe a software firewall like ZoneAlarm
DOES serve its purpose very well.  Using ZoneAlarm, NOTHING can access the
internet or conversely allow connections FROM the internet unless you
SPECIFICALLY grant it that right.

Different strokes and all that...ymmv.


Mark




-----Original Message-----
From: Bobby Heid [mailto:bheid at appdevgrp.com] 
Sent: Monday, December 06, 2004 3:59 PM
To: 'Discussion of Hardware and Software issues'
Subject: RE: [dba-Tech] Software Firewalls


No, a software firewall can help with apps "phoning home".

I run both.

Bobby

-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Arthur Fuller
Sent: Monday, December 06, 2004 3:50 PM
To: Discussion of Hardware and Software issues
Subject: Re: [dba-Tech] Software Firewalls


Stupid question of the month (perhaps)...

Given that I have a LinkSys router, is any additional software firewall 
redundant?

Arthur

>  
>


-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.289 / Virus Database: 265.4.6 - Release Date: 12/5/2004

_______________________________________________
dba-Tech mailing list
dba-Tech at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/dba-tech
Website: http://www.databaseadvisors.com

_______________________________________________
dba-Tech mailing list
dba-Tech at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/dba-tech
Website: http://www.databaseadvisors.com
_______________________________________________
dba-Tech mailing list
dba-Tech at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/dba-tech
Website: http://www.databaseadvisors.com



_______________________________________________
dba-Tech mailing list
dba-Tech at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/dba-tech
Website: http://www.databaseadvisors.com



More information about the dba-Tech mailing list