Educause Security Discussion mailing list archives

Re: Blocking URLs


From: Andre DiMino <adimino () GWU EDU>
Date: Fri, 31 Jul 2015 13:09:10 -0400

We use OpenDNS to block phish domains.
We are also able to determine which hosts may have visited these domains
prior to blocking.

On Fri, Jul 31, 2015 at 12:57 PM, Pratt, Benjamin E. <
bepratt () stcloudstate edu> wrote:

At the EDUCAUSE Security Professionals Conference there was a session
about using OpenDNS for blocking these types of attacks. There are also
many other options for controlling DNS to reduce this risk but if someone
isn’t using your DNS, or is going directly to IPs, then it’s not effective.



--



Benjamin Pratt

ITS Security Team



St. Cloud State University



*From:* The EDUCAUSE Security Constituent Group Listserv [mailto:
SECURITY () LISTSERV EDUCAUSE EDU] *On Behalf Of *Chris Green
*Sent:* Friday, July 31, 2015 11:47 AM
*To:* SECURITY () LISTSERV EDUCAUSE EDU
*Subject:* [SECURITY] Blocking URLs



All,



We are looking for a cost effective solution to prevent users from
accessing sites when they fall for phishing attempts. Right now we are
blocking IPs for those sites in our firewall, but this is not a great
solution for us as we don’t want to load up our firewall with these types
of rules, and the majority of these sites use dynamic IPs, so it’s a
temporary fix at best.



I wanted to see if anyone had come up with a solution for this dilemma
that doesn’t involve dropping six figures on an application firewall.



Thanks,



-C.



*Chris Green*

Information Security Officer

University of Texas at Tyler






-- 
Andre' M. DiMino
Senior Network Security Engineer
The George Washington University
Desk: (202) 994-6114
Cell: (202) 365-0548
adimino () gwu edu

*Learn how to protect your personal information*

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   https://twitter.com/PhishesDotNet
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