As the Nexus platform has become a staple in the data center environment, securing the environment begins with the Nexus Operating System (NX-OS). The recently published NX-OS hardening guide seeks to deliver on that. The Cisco NX-OS Hardening Guide provides information to help administrators and engineers secure NX-OS system devices, inherently increasing the overall security of a network environment. With the ever-increasing opportunity for exploits and vulnerabilities to prevail, it is imperative that organizations adopt and apply best practices to harden their infrastructure devices. We all know that an environment is only as strong as the weakest link, thus every effort should be made to ensure that each device is hardened.
One of the more (in)famous examples of malware is the banking Trojan Zeus. We have covered Zeus before (Seth Hanford’s post, Zeus: Getting a Taste of its Own Medicine), but like William Shatner, it is one of those things that never seems to get old. Zeus is interesting because it was one of the more successful commercial or productized forms of malware, but more than that, it was a financial crimeware solution.
Zeus was sold in the form of a kit, and has been available in freeware, cheap and expensive versions ranging in price up to several thousand dollars or more. The kit allowed you to build malware that would help you steal banking and identity information. The malware has an initial configuration baked in when you do the build process, but once it goes live on the host it phones home for a dynamic configuration, which includes where to upload stolen data to, hosts file entries etc.
This week I’m happy to continue our customer guest-blog series with Blake Krone, CCNA Wireless, CCNP Wireless, and CCIE Wireless candidate. You can read more from Blake on his blog, Digital Lifestyle or connect with him via Twitter @blakekrone. Read on for a Cisco Live perspective from a true wireless professional.
Recently 14,000+ technology geeks invaded Las Vegas for Cisco Live! 2011 at Mandalay Bay Convention Center. For me this was my 4th year in a row attending Cisco Live! and the 2nd in a row at Vegas. If you have never attended a Cisco Live! event in person I strongly suggest that you try to budget for it next time around. Not only is this the best week to jump head first into all areas of Cisco’s product portfolio but it is also an opportunity to see how the products can come together to provide connectivity for devices and people.
For every Cisco Live! event that is held Cisco builds their own network to support the conference attendees, sponsors, and speakers. This gives Cisco the opportunity to get a large set of data points regarding their products performance in abusive conditions. Lately we have seen or heard about the BYOD (bring your own device) phenomenon that is sweeping across the enterprise network and there is no better place to see that than a large IT conference.
One can safely assume that for all the 14,000+ in attendance each person will have at least 1 Wi-Fi connected device. Now let’s assume that a large chunk of those in attendance are like me and also have their laptop and a tablet with them, that’s a lot of connected devices to support! Whenever I talk with customers about wireless deployments the first thing I will say when we get to the point of turning on a network is that the client will cause the best wireless network to fail. We always push to make sure that the latest drivers are applied to the devices going to be used to ensure proper roaming and performance. But how do you manage that when you have no control over the devices being used? In the future we’ll use tools like Cisco NCS and ISE, for now we just hope it works!
Each year a considerable part (up to 30% in some cases) of IT budgets is funneled towards device troubleshooting. It is no surprise therefore that after security, maintaining lean operational efficiency is the next most frequent concern regarding enabling a BYOD (Bring Your Own Device) model.
Suppose you have allowed personal devices to connect on your corporate network, and you get a helpdesk call from a disgruntled employee that can’t access certain resources. How would you go about addressing the issue? In this video, Saurabh Bhasin, Product Manager of the Cisco Prime Network Control System (NCS) – a newly launched platform for unified wired and wireless network management – answers the troubleshooting question.
What is CVSS -- (the Common Vulnerability Scoring System)? How can it help me manage risk -- and why is it an important step forward in security research? In this short video Gavin Reid CVSS Program Chair share’s his perspective on the vulnerability scoring standard