Firewall failover with pfsync and CARP

Thursday, 1 April 2004, 12:24 PM EST

On most networks, the firewall is a single point of failure. When the firewall goes down, inside users are unable to surf the web, the website goes dead to the outside world, and email grinds to a halt. The 3.5 release of OpenBSD includes a number of components which can be used to solve this problem, by placing two firewalls in parallel. All traffic passes through the primary firewall; when it fails the backup firewall assumes the identity of the primary firewall, and continues where it left off. Existing connections are preserved, and network traffic continues as if nothing had happened.

By Ryan McBride at Countersiege.

[ Read more ]

Related items




Spotlight

The synergy of hackers and tools at the Black Hat Arsenal

Posted on 27 August 2014.  |  Tucked away from the glamour of the vendor booths and the large presentation rooms filled with rockstar sessions, was the Arsenal - a place where developers were able to present their security tools and grow their community.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  

DON'T
MISS

Mon, Sep 1st
    COPYRIGHT 1998-2014 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //