Stories by Linda Leung

Cisco warns of Unified Communications Manager flaw

Cisco Wednesday released its first new security alert of the year: a warning that its Cisco Unified Communications Manager - formerly CallManager - contains a heap overflow vulnerability in the Certificate Trust List that could allow a hacker to cause a denial-of-service attack or execute arbitrary code.

Seven Cisco bad luck happenings in '07

Even the best of us has bad days, but when Cisco has them for whatever reason, they get reported widely. Here are our picks of the top-7 bad luck happenings in Ciscoland in the past year, ranging from the departure from Cisco of a high-flying exec to a wireless LAN data flooding to some major problems with Cisco VoIP equipment.

Top 6 Cisco acquisitions of 2007

Cisco made 11 acquisitions this year culminating in 126 purchases since Cisco's birth. It made three more acquisitions than it did last year, when it spent a measly US$256 million buying ho-hum technologies. This year was different, not only in the sheer dollar size of some acquisitions, but also because of the breadth of technologies it acquired. From social networks to broadband wireless, we take a look at what Cisco Subnet has named Cisco's top-six acquisitions of 2007. We also look at what Cisco should have bought and what Cisco may be looking to buy in 2008.

Cisco confirms ability to spy on remote calls with VoIP

Cisco confirmed it is possible to eavesdrop on remote conversations using Cisco VoIP phones. In its security response, Cisco says: "an attacker with valid Extension Mobility authentication credentials could cause a Cisco Unified IP Phone configured to use the Extension Mobility feature to transmit or receive a Real-Time Transport Protocol (RTP) audio stream."

ISACA introduces IT governance certification

The new certification is aimed at IT governance professionals with at least five years of experience and who are charged with the management, support and counsel of corporate IT governance initiatives.

Juniper offers free training to Juniper certs for Cisco certified pros

Juniper, the challenger to Cisco in the service provider core routing and enterprise networking markets is making its boldest move yet to target the Cisco enterprise installed base. It is offering free training to Cisco certified professionals worldwide to become Juniper-certified.

Seven golden rules for implementing IPv6

IPv6 is not a "maybe" that could be 10 or 20 years out in the future; it is a hard reality that you are going to encounter, possibly before the end of this decade, says Jeff Doyle, noted IP routing expert and author of Routing IP, published by Cisco Press. In his blog for Cisco Subnet, Doyle details his top 7 considerations for rolling out IPv6. You can access more information about each of the 7 rules by clicking on the text links below.

IBM Labs' top-five research projects

IBM opened the doors to its R&D lab in Silicon Valley last week to show off some of the research that is happening around its research facilities in the United States. These include 'IBM's Next Five in Five,' a list of innovations that Big Blue believes could affect the way people work, live and play over the next five years.

Novell aims to test your Linux skill level

Novell is this week is expected to launch on its training Web site an online Linux skills assessment tool that will give you immediate feedback on your level of Linux knowledge and recommend some training and courseware to get you on your way to servicing Novell's Linux platform.