“The firewall threat you don’t know”


Are you placing active filters on data leaving?

Simulação da participação de um Firewall entre...

(Photo credit: Wikipedia)

The purpose of a firewall has been burned into the head of just about every person who uses the Internet, and the thought of functioning without protection from the bad people is sheer lunacy.

However, nearly all firewalls are unidirectional. They may protect you from nefarious pokes and prods from the nether regions of the Internet, but they’ll happily ship out any data you send from the inside. Only at the higher levels of enterprise IT do you see active filters for data leaving the network.

Paul Venezia makes a great point at the end:

As in so many facets of IT, to be forewarned is to be forearmed. The
quest for true network security and visibility is an ongoing struggle,
and even with all the notice in the world, there’s no winning this arms
race. But that doesn’t mean we can just quit. If you’re not watching
your outbound traffic now, plan on doing so as soon as possible. Whether
you start with something as “simple” as NTop or go for the big guns like the NIKSUN device, it’s a worthwhile investment of time and money — kinda like firewalls.

Read more at:  The firewall threat you don’t know | Data Center – InfoWorld.

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About brvanlanen

Just a thirty-something guy currently hanging it up in the greater Green Bay area. My post-high school educational background is mainly in the Information Technology field. Specifically I have an A.A.S. in Computer Network Systems and a B.S. in Information Systems Security, both from ITT Technical Institute, in addition to A and MCDST certifications. In my free time I enjoy spending time with my family, cooking and sports. My Christian faith is also important to me as a Missouri-Synod Lutheran and all my children attend a Lutheran grade school. When it comes to political leanings I am a conservative first and foremost which you will discover rather quickly. As for sports I am a huge fan of the Green Bay Packers.

Posted on June 28, 2012, in Cybersecurity, Network Administration, Security, Security tips and tagged , , , , , , . Bookmark the permalink. Comments Off on “The firewall threat you don’t know”.

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