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Category Archives for "Networking"

IDG Contributor Network: Addressing hybrid network challenges with SD-WAN

In previous articles I outlined one of the most clear-cut use cases for Software Defined WAN: replacing traditional Internet-based VPNs with a centrally-managed SD-WAN solution. This is easy for enterprises to relate to, and the benefits of deploying this type of project can be considerable.However, many enterprises deal with a much more complex hybrid WAN, and the challenges with this type of environment can be substantial. A hybrid WAN means that multiple technologies are integrated to deliver the end-to-end solution; this can include MPLS, VPLS, point-to-point circuits and Internet VPNs. Traffic flows between end users and applications can span multiple technologies and multiple boundaries of management responsibility. I've worked with many global enterprises that operate networks like this, and I hear several recurring complaints:To read this article in full or to leave a comment, please click here

Security ‘net: Social Media & Narratives

I have a rather motley collection of links this week roaming over security, social media, and algorithms. First up is three interesting reads on social media, some of which isn’t very technical, but it’s tangential to technology, so I still get to post them here. Since beginning work in earnest on a PhD in philosophy, I’ve been paying a lot more attention to stories in this realm, and thinking about how these things impact us as people and our culture at large.

First up, a prediction that Facebook is going to die because it’s a “garbage dump.” I’m not a huge user of Facebook, so I really don’t pay attention to what goes on there (which is probably why if you’ve tried to friend me there, I’ve not answered — I rarely look at requests, and almost never approve them).

It’s sort of like going to your junk drawer to find the nail clippers, and rifling through old receipts, coupons, paper clips. Instead of fetching your clippers, which you know are in the back, you occupy yourself momentarily with what’s in your drawer and why it’s there.

It’s important for communication channels to keep their signal to noise ratio Continue reading

Lies vendors tell about Service Level Agreements and how to negotiate for something better

Although vendor-written, this contributed piece does not advocate a position that is particular to the author’s employer and has been edited and approved by Network World editors.

Most companies now use a range of cloud applications, and uptime performance for those applications is measured by Service Level Agreements (SLAs). These agreements acknowledge that glitches, system crashes and downtime have an enormous impact on business continuity and can adversely affect customer loyalty and churn. Gartner estimates downtime can cost major corporations as much as $100,000 per hour.

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Have you broken your security resolutions yet?

Keeping your resolutionsImage by UsodesitaWe are almost halfway through the first month of 2016 and I am sure many people have already let their personal resolutions fall apart. But what about your professional resolutions? How have they held up? Is it easier to shore up your network’s security than exercise every day? These security professionals offer up their resolutions for the new year.To read this article in full or to leave a comment, please click here

Feds say only Chryslers were vulnerable to hacks via radio, not Audi or Volkswagen

U.S. auto safety regulators have determined that only infotainment centers from Fiat-Chrysler Automobiles (FCA) had a security flaw that could allow hackers to take control of Jeeps and several other model cars and trucks.Last summer, Fiat-Chrysler recalled 1.4 million Jeep, Chrysler, Dodge and Ram vehicles that had the security flaw.After a five-month investigation into cyberhacking vulnerabilities, the National Highway Traffic Safety Administration (NHTSA) said only FCA vehicles, and no others, were vulnerable to the hack.Affected were certain vehicles equipped with 8.4-in. Uconnect touchscreens: 2013-2015 Dodge Viper specialty vehicles 2013-2015 Ram 1500, 2500 and 3500 pickups 2013-2015 Ram 3500, 4500, 5500 Chassis Cabs 2014-2015 Jeep Grand Cherokee and Cherokee SUVs 2014-2015 Dodge Durango SUVs 2015 Chrysler 200, Chrysler 300 and Dodge Charger sedans 2015 Dodge Challenger sports coupes Audi Volkswagen and Bentley were also part of the NHTSA's investigation because they use the same infotainment center as Chrysler vehicles, which are made by Harman and used a similar Uconnect operating system.To read this article in full or to leave a comment, please click here

Microsemi builds better security into network time appliance

Keeping accurate time has never been more important. Inaccurate time can cause servers and applications to go awry, causing service disruptions.For example: As fighter Manny Pacquiao was ready to square off against Floyd Mayweather in May 2015, the fight was delayed due to a technical problem with pay-per-view orders. More than 4.4 million U.S. customers shelled out $100 to watch the fight but had trouble accessing it. The fight was delayed 45 minutes. It turns out the trouble was a problem with time. A time server was so far out of sync that people were disqualified from watching the fight because of a discrepancy with the time stamps.To read this article in full or to leave a comment, please click here

Rovnix malware shifts focus to Japan, says IBM

After a stint focusing on the Netherlands, a group using the Rovnix Trojan has updated it and repackaged it to steal from the bank accounts of victims in Japan, according to IBM X-Force.The malware in this exploit, which has persisted in various forms for about five years, has been augmented to avoid being detected, dodge bank security and convincingly mimic bank websites, says Etay Maor, a senior cybersecurity strategist for IBM.It’s pretty clear from the malware samples IBM X-Force has examined that the Rovnix group in question studied Japanese banks closely and came up with a user interface that closely mimics those of specific banking sites. It’s not just a generic key-logger that steals information and hopes for the best, Maor says.To read this article in full or to leave a comment, please click here

Are Unnumbered Interfaces Harmful?

A few weeks ago I got into an interesting discussion about the potential harm caused by unnumbered IPv4/IPv6 interfaces.

Ignoring for the moment the vendor-specific or media-specific implementation details, these two arguments usually pop up in the first 100 milliseconds (assuming engineers involved in the discussion have some hands-on operational experience):

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Mozilla Persona login system to shut down end November

Mozilla's login system Persona will be shut down on Nov. 30 as its usage is low and has not grown over the last two years.The foundation's decision to take persona.org and related domains offline follows a move in March 2014 to transition the running of the project from full-time developers to a community of long-time volunteers and former paid contributors.Mozilla said at the time that it had no plans to decommission the little-known service, which allowed users to sign in to websites that support Persona using their verified email ids.  The key attraction of the service, according to Mozilla, was that users didn't have to trust a website with their password, preventing its theft if one of the websites got hacked.To read this article in full or to leave a comment, please click here

Trend Micro flaw could have allowed attacker to steal all passwords

A discovery by a well-known Google security researcher provides further proof how antivirus programs designed to shield computers from attacks can sometimes provide a doorway for hackers. Tavis Ormandy, an information security engineer with Google, wrote he found bugs in Trend Micro's antivirus product that could allow remote code execution by any website and steal all of a users' passwords. The security firm has confirmed it has released an automatic update that fixes the problems. "As part of our standard vulnerability response process we worked with him to identify and address the vulnerability," wrote Christopher Budd, global threat communications manager at Trend Micro, in an email on Monday. "Customers are now getting protections through automatic updates."To read this article in full or to leave a comment, please click here

2015 in review and 2016 goals

Last year I started writing down my goals for each year.  My thought was that writing them down would be more meaningful than just thinking “I should try and do X this year”.  So I want to take a quick look at how I did and talk about 2016 as well. 

2015 Goals

Run a marathon
I signed up for, and attempted to run, the Twin Cities Marathon this fall.  I knew going into it that I wouldn’t run the whole thing.  My training schedule fell apart after the first month.  While I could list all of the reasons why (Our 2nd kid was on the way, work was crazy, etc) there really are no excuses.  In the month before the marathon I seriously picked up training again but it wasn’t enough.  My new goal became to run half which I was able to do and I considered it a huge win for me.  Having never run a race that big, I was a little hesitant about it but the experience was AWESOME and I’m definitely keeping this one on the goal list for 2016.

Start work on finishing my basement
Continue reading

Should the US change metal coins?

It may be time for the United States to rethink how the smallest parts of its monetary system -- the penny, nickel and dime – are made.According to a report this week from watchdogs at the Government Accountability Office, since 2006 the prices of metals used in coins have risen so much that the total production unit costs of the penny and nickel exceed their face value resulting in financial losses to the U.S. Mint. In fact such a change could potentially save between $8 million and $39 million per year by changing the metal composition of the nickel, dime, and quarter.+More on Network World: 20 years ago: Hot sci/tech images from 1995+To read this article in full or to leave a comment, please click here

Should the US change metal coins?

It may be time for the United States to rethink how the smallest parts of its monetary system -- the penny, nickel and dime – are made.According to a report this week from watchdogs at the Government Accountability Office, since 2006 the prices of metals used in coins have risen so much that the total production unit costs of the penny and nickel exceed their face value resulting in financial losses to the U.S. Mint. In fact such a change could potentially save between $8 million and $39 million per year by changing the metal composition of the nickel, dime, and quarter.+More on Network World: 20 years ago: Hot sci/tech images from 1995+To read this article in full or to leave a comment, please click here

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