Stories about: Cisco Systems

Patches meant to fix a flaw in the Internet's Domain Name System (DNS) don't completely protect the Web's traffic cop from attack, a Russian research claimed Friday.

John Stewart doesn't talk like your typical corporate executive. He said that his company, Cisco Systems, has been lucky when it comes to security and that his company's Self-Defending Network marketing push has painted "a big bull's-eye" on its products.

Nearly a month after a critical flaw in the Internet's Domain Name System was first reported, vendors of some of the most widely used firewall software are scrambling to fix a problem that can essentially undo part of the patches that address this bug.

Just days after details of a critical bug in the Domain Name System (DNS) software went public, researchers released attack code that can silently redirect users to unintended sites.

The researcher whose speculation led to an early disclosure of information about a critical flaw in the Domain Name System (DNS), the Internet's traffic cop, wasn't the first to come close to the truth, said the security expert who found the bug and organized a massive patching effort.

San Francisco Mayor Gavin Newsom met with jailed IT administrator Terry Childs Monday, convincing him to hand over the administrative passwords to the city's multimillion dollar wide area network.

IT managers and analysts are expressing surprise at the amount of time it appears to be taking officials at the City of San Francisco to regain full control of the city's FiberWAN network after a disgruntled network administrator allegedly locked access to it by resetting administrative passwords to its switches and routers.

A disgruntled network administrator pleaded not guilty Thursday to charges of computer tampering for allegedly setting up an unauthorized access system and holding much of the city of San Francisco's computer network hostage

The security researcher who recently discovered a heretofore unknown flaw in the Internet's core Domain Name System (DNS) protocol warned IT managers on Thursday to expect more security fixes aimed at mitigating the issue over the coming months.

A software patch released by Microsoft to plug a hole in the Domain Name System protocol was just one of nine security fixes the company issued last week. And like the others, the DNS patch got only an "important" severity rating, one step below Microsoft's top rating of "critical."

Paul Mockapetris, inventor of the Internet's Domain Name System architecture, has some advice for those in any doubt about the seriousness of a weakness in the DNS protocol that was disclosed yesterday: Patch your DNS servers right now.