Educause Security Discussion mailing list archives

Re: Firewall Upgrade


From: Mike Osterman <ostermmg () WHITMAN EDU>
Date: Fri, 14 Feb 2014 11:16:25 -0800

Ben,

How exactly are you blocking SMTP effectively? We were advised that setting SMTP to "block" would be a bad idea as it 
would keep retrying.

-Mike

On Feb 14, 2014, at 10:19 AM, Ben Parker <BParker () CHICORPORATION COM> wrote:

Disclaimer: reseller
Where I have seen the largest impact from places we have put wildfire is blocking zero day viruses coming in via 
smtp. An amazing amount of those things are now seen as new threats by a lot of antivirus vendors. Basically all the 
fax or shipping report type of stuff.


Sent from my Verizon Wireless 4G LTE Smartphone


-------- Original message --------
From: Mark Rogowski 
Date:02/14/2014 11:55 AM (GMT-05:00) 
To: SECURITY () LISTSERV EDUCAUSE EDU 
Subject: Re: [SECURITY] Firewall Upgrade 

Interesting conversation and good feedback for sure.  And yes, CST, although it is daylight right now…  ;-)
 
The reason I bring this up is we are just beginning to deploy a PA and only have the AV/AM service running right now. 
 Initial observations is that it is picking up Conficker just fine but nothing else.  Obviously things need to be 
tweaked, but I honestly was expecting to see more action out of it from the get-go.  Looking at the Spyware 
signatures they don’t seem to get updated very often.
 
Our ISP deployed a FireEye appliance on a 30 day trial last year.  For that month we observed a significant drop in 
malware infections.  So I was hoping the PA with the Wildfire service could be as effective.  We didn’t subscribe to 
the Wildfire service yet, and may request a trial before committing to said service.
 
 
Mark Rogowski  CISSP, CISM
IT Security / Information Security Office
University of Winnipeg
Ph: 204-786-9034
 
 
 
From: The EDUCAUSE Security Constituent Group Listserv [mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf OfRoger A 
Safian
Sent: Friday, February 14, 2014 10:19 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Firewall Upgrade
 
I agree on wildfire, and URL filtering.  In fact, the URL filtering, which we primarily wanted as another layer to 
prevent phishing, was terrible.  My guess is it works great, in say a bank, but, in a university, the categories 
aren’t that useful.
 
From: The EDUCAUSE Security Constituent Group Listserv [mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf OfHall, 
Rand
Sent: Friday, February 14, 2014 10:04 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Firewall Upgrade
 
Like Roger said, YMMV. Most people have many layers of defense. No layer is magic. OpenDNS blocks some stuff for us. 
PA DNS anti-hijacking firewall rules block stuff. Threat Protection on PA blocks some stuff. Basic Wildfire alerts on 
some stuff. Desktop AV still blocks some stuff. PA Threat Protection blocks/alerts on post-infection C&C traffic.
 
The basic Wildfire service that comes with Threat Protection is pretty good for what it is. The premium service is 
overpriced, IMHO (as is URL filtering).

           
Rand
 
Rand P. Hall
Director, Network Services                 askIT!
Merrimack College
978-837-3532
rand.hall () merrimack edu
 
If I had an hour to save the world, I would spend 59 minutes defining the problem and one minute finding solutions. – 
Einstein
 

On Fri, Feb 14, 2014 at 10:25 AM, Mark Rogowski <m.rogowski () uwinnipeg ca> wrote:
Forgive the derailing of this thread, but given all the chatter regarding Palo Alto, I am very curious to know how 
effective the product is at stopping malware.  PA touts they have strong anti malware protection - is this in fact 
true?  Have any of you noticed a drop in your end point infections?

Mark Rogowski  CISSP, CISM
IT Security / Information Security Office
University of Winnipeg
Ph: 204-786-9034





-----Original Message-----
From: The EDUCAUSE Security Constituent Group Listserv [mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of 
Michael Horne
Sent: Friday, February 14, 2014 8:48 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Firewall Upgrade

I will also give a +1 to Palo Alto, We replaced a pair of aging Nortel branded check points with a pair of PA 5020's. 
We are very pleased with them and I personally would recommend them as well. A lot deeper view into what's happening 
on the network as well. Rule creation is not bad either once yopu get the mind shift changed to zone / application 
based vrs just a port based FW.


Michael Horne
Network Engineer
Olin College of Engineering
1000 Olin Way, Milas Hall, Suite LL18
Needham, MA 02492
1-781-292-2438



-----Original Message-----
From: The EDUCAUSE Security Constituent Group Listserv [mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Russo, 
Dan
Sent: Thursday, February 13, 2014 2:19 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Firewall Upgrade

We are looking into upgrading our Firewall. I was wondering if anyone had anything to offer in regards to what you 
are using and the pros/cons associated to it.

Thanks,

Dan


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