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Category Archives for "Networking"

The FTC’s next chief technologist is on a quest for better passwords

Privacy issues will likely stay at the forefront of the FTC's focus next year thanks to the commission's appointment of Lorrie Cranor as its new chief technologist.Cranor, who is currently a professor of computer science and engineering and public policy at Carnegie Mellon University, directs the CyLab Usable Privacy and Security Laboratory. She will succeed Ashkan Soltani, the privacy expert who assumed the role in November 2014, the U.S. Federal Trade Commission announced on Thursday.Cranor will join the FTC in January.To read this article in full or to leave a comment, please click here

IDG Contributor Network: Sensors designed to detect overloaded cables, prevent fires

Flickering lights, tripping breakers, and discolored outlets are among the ways one can guess that wiring is overloaded. Add visual access, and you can tell if the sheathing may appear discolored.But some of us who've been around electricity for a while have also developed an acute sense of smell for wiring trouble. There's a distinctive acrid odor that can be caused by melting components on a PCB, the plastic around a part, or the polyvinyl chloride (PVC) covering on the wire emitting vapor.That odor on its own, even without visible smoke, is a heads-up to troubleshoot the wiring.Nasal range? There are, however, flaws in the sniffing method of overloading detection. What happens if the overloading occurs in an overhead crawl space, for example? Or at a remote, non-staffed installation?To read this article in full or to leave a comment, please click here

IDG Contributor Network: Sensors designed to detect overloaded cables, prevent fires

Flickering lights, tripping breakers, and discolored outlets are among the ways one can guess that wiring is overloaded. Add visual access, and you can tell if the sheathing may appear discolored.But some of us who've been around electricity for a while have also developed an acute sense of smell for wiring trouble. There's a distinctive acrid odor that can be caused by melting components on a PCB, the plastic around a part, or the polyvinyl chloride (PVC) covering on the wire emitting vapor.That odor on its own, even without visible smoke, is a heads-up to troubleshoot the wiring.Nasal range? There are, however, flaws in the sniffing method of overloading detection. What happens if the overloading occurs in an overhead crawl space, for example? Or at a remote, non-staffed installation?To read this article in full or to leave a comment, please click here

Russian spy group adopts new tools to hack defense contractor networks

A Russian cyberespionage group known as Pawn Storm has adopted new tools in an ongoing attack campaign against defense contractors with the goal of defeating network isolation policies.Pawn Storm, also known as Sofacy, after its primary malware tool, has been active since at least 2007 and has targeted governmental, security and military organizations from NATO member countries, as well as media organizations, Ukrainian political activists and Kremlin critics.Since August, the group has been engaged in an ongoing attack campaign focused on defense contractors, according to security researchers from Kaspersky Lab.During this operation, the group has used a new version of a backdoor program called AZZY and a new set of data-stealing modules. One of those modules monitors for USB storage devices plugged into the computer and steals files from them based on rules defined by the attackers.To read this article in full or to leave a comment, please click here

PlexxiPulse—Networking in Boston

Our CEO, Rich Napolitano, has been hitting the road to share the Plexxi message! Just before Thanksgiving, he sat down with Paul Gillin and Dave Vellante of SiliconANGLE to discuss our most recent product launch and modernizing network infrastructure. Take a look at the video below!

Earlier this week, Rich participated in the Enterprise Tech Strikes Back event in Boston hosted by Xconomy. Rich was a member of the “Building the Next Great Infrastructure Company” panel with Andy Ory of 128 Technology, Ellen Rubin of ClearSky Data and moderator Jody Rose of the New England Venture Capital Association. The group discussed networking, storage and cloud, and what it will take to create Boston’s next big enterprise IT infrastructure company. We enjoyed meeting and networking with likeminded startups that are taking on the challenges associated with the Third Era of IT. It is always fun to have a group of brilliant minds in one room!

Captureticnplexxi1(Photo credit: Bob Brown, Network World)

Below please find a few of our top picks for our favorite news articles of the week. Enjoy.

BetaNews.com: Is your network ready for IoT devices?
By Manish Sablok
The stats are here: investment bank Goldman Sachs cites Continue reading

One Million Views

It’s hard to believe that my blog has just surpassed 1000000 views! I started this blog out just on the side to go over things I was learning. I’ve learned a lot in the process, and managed to bag myself two CCIEs, a JNCIE-SP, a job at Google, and the opportunity to write a book … Continue reading One Million Views

Widespread exploit kit, password stealer and ransomware program mixed into dangerous cocktail

An ongoing attack campaign combines a very effective password stealer, the most widespread exploit kit, called Angler, and the latest version of the infamous CryptoWall file-encrypting ransomware program.The attackers first use the Pony computer Trojan to pilfer passwords from compromised computers, including FTP and SSH credentials that webmasters use to administer websites, according to researchers from Heimdal Security.The stolen credentials are then used to inject malicious code into legitimate websites with the goal of redirecting their visitors to an installation of the Angler exploit kit. This is a Web-based attack tool that includes exploits for various vulnerabilities in Windows and browser plug-ins, such as Flash Player and Java.To read this article in full or to leave a comment, please click here

Show 266: Exploring Riverbed SD-WAN And Project Tiger (Sponsored)

Riverbed’s Hansang Bae, Josh Dobies, and Kevin Glavin discuss how an application-centric approach to SD-WAN puts IT at the forefront of business innovation. And get an in-depth preview of Project Tiger, Riverbed’s engineering effort that will dramatically simplify how IT manages hybrid WANs.

The post Show 266: Exploring Riverbed SD-WAN And Project Tiger (Sponsored) appeared first on Packet Pushers.

Show 266: Exploring Riverbed SD-WAN And Project Tiger (Sponsored)

Riverbed’s Hansang Bae, Josh Dobies, and Kevin Glavin discuss how an application-centric approach to SD-WAN puts IT at the forefront of business innovation. And get an in-depth preview of Project Tiger, Riverbed’s engineering effort that will dramatically simplify how IT manages hybrid WANs.

The post Show 266: Exploring Riverbed SD-WAN And Project Tiger (Sponsored) appeared first on Packet Pushers.

Net neutrality could be on the line in Washington court battle

The FCC's net neutrality rules go on trial Friday as oral arguments begin in 10 lawsuits that could dramatically change the way Internet service providers are regulated.In February, the Federal Communications Commission voted to ban service providers from giving some content preferential treatment. It also reclassified broadband as a communications service, similar to old-fashioned telecommunications except with exemptions from pricing and other regulations.The rules went into effect in April but soon faced a barrage of lawsuits by carriers and industry groups that want to see them gutted. The suits were combined into one proceeding in the federal appeals court in Washington, where opening arguments will start Friday.To read this article in full or to leave a comment, please click here

Tools for debugging, testing and using HTTP/2

With CloudFlare's release of HTTP/2 for all our customers the web suddenly has a lot of HTTP/2 connections. To get the most out of HTTP/2 you'll want to be using an up to date web browser (all the major browsers support HTTP/2).

But there are some non-browser tools that come in handy when working with HTTP/2. This blog post starts with a useful browser add-on, and then delves into command-line tools, load testing, conformance verification, development libraries and packet decoding for HTTP/2.

If you know of something that I've missed please write a comment.

Browser Indicators

For Google Chrome there's a handy HTTP/2 and SPDY Indicator extension that adds a colored lightning bolt to the browser bar showing the protocol being used when a web page is viewed.

The blue lightning bolt shown here indicates that the CloudFlare home page was served using HTTP/2:

A green lightning bolt indicates the site was served using SPDY and gives the SPDY version number. In this case SPDY/3.1:

A grey lightning bolt indicates that neither HTTP/2 no SPDY were used. Here the web page was served using HTTP/1.1.

There's a similar extension for Firefox.

Online testing

There's also a handy online Continue reading

Millions of smart TVs, phones and routers at risk from old vulnerability

A three-year-old vulnerability in a software component used in millions of smart TVs, routers and phones still hasn't been patched by many vendors, thus posing a risk, according to Trend Micro.Although a patch was issued for the component in December 2012, Trend Micro found 547 apps that use an older unpatched version of it, wrote Veo Zhang, a mobile threats analyst."These are very popular apps that put millions of users in danger; aside from mobile devices, routers, and smart TVs are all at risk as well," he wrote.To read this article in full or to leave a comment, please click here

Microsoft, law enforcement disrupt Dorkbot botnet

Microsoft said Thursday it aided law enforcement agencies in several regions to disrupt a four-year-old botnet called Dorkbot, which has infected one million computers worldwide.The Dorkbot malware aims to steal login credentials from services such as Gmail, Facebook, PayPal, Steam, eBay, Twitter and Netflix.It was first spotted around April 2011. Users typically get infected by browsing to websites that automatically exploit vulnerable software using exploit kits and through spam. It also has a worm functionality and can spread itself through through social media and instant messaging programs or removable media drives.Microsoft didn't provide much detail on how Dorkbot's infrastructure was disrupted. The company has undertaken several such actions over the last few years in cooperation with law enforcement.To read this article in full or to leave a comment, please click here

Network Automation with Ansible – Dynamically Configuring Interface Descriptions

It’s been a while since my last post, but let’s hope that changes with the flurry of posts planned for this month. Most of my recent time has been spent traveling and teaching courses that cover how to use Python and Ansible for Network Automation. I’ve written about many of these concepts in the past, but to re-iterate what I’ve been saying, and what I’ve written in the past, it’s crucial to start small when it comes to automation (otherwise it’s easy to feel overwhelmed trying to automate everything and then you never make any real progress). By starting small, you can get a quick win, and can gradually expand from there. In this post, I’m going to review one very small example of how to use Ansible for network automation. We’ll review how to use Ansible to dynamically configure interface descriptions populated with real-time LLDP neighbor information. While this post focuses on Cisco Nexus switches, note that the same approach can be used for any vendor.

The process that we’ll be using to auto-configure the interface descriptions is a three-step process:

1. Discover the device
While we are only using Cisco switches in this example, we still go through Continue reading

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