The first line of defense, for networks large or small, is typically the firewall -- that aptly named barrier that is supposed to keep heat from unwanted intruders outside while allowing those within to go about their business normally.
Traditionally, firewalls have consisted of some combination of hardware and software that was powerful, flexible, and pretty much a pain to manage. Thatís not a problem so long as your company can afford to dedicate people to the task, since it gives you ultimate control over your perimeter.
It can become tough, though, when IT budgets -- and especially headcount -- grow tighter, as has happened in recent years.
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For all your firewalls information needs, visit the Firewalls outside articles section of HNS.
- Article: Firewall + Firewall Policy = Improved Security (2 April 2003)
- Article: Interview with Lisa Yeo, author of "Personal Firewalls for Administrators and Remote Users" (30 March 2003)
- Review: Personal Firewalls for Administrators and Remote Users (13 March 2003)
- Review: Firewalls and Internet Security: Repelling the Wily Hacker 2/e (30 January 2003)
- Review: Cisco Secure PIX Firewalls (28 January 2003)