BrandPost: Metro Ethernet for business on the move

Can’t you ever get enough bandwidth? It may seem that way when you run up against current constraints, but despair of being able to afford additional capacity. Really, though, what you should be asking is can you get the bandwidth you need, when you need it.In the past, you really didn’t have much choice. You made calculations based on ongoing needs and figured out whether you could afford something extra for peak capacity.Software-drivenThe future, built on software-driven networks and virtualization, is one of bandwidth on demand, when you need it. AT&T Network on Demand revolutionizes enterprise network services by emulating with software the functions of complex hardware components and servers. Instead of waiting for truck rolls, ultimately you’ll be able to order new services in near real time through an online, self-service portal.To read this article in full or to leave a comment, please click here

Why Blockchain’s growing pains will be worth it

HALF MOON BAY, Calif. – Experts at a recent technology conference agreed that blockchain has a bright future, but warned it may be a rocky ride until that future arrives. Blockchain is a distributed database that uses a secure digital ledger of transactions that users can share across a computer network. It’s also the technology behind virtual currency bitcoin.      “When you are at the leading edge there will be mistakes. People will get a lot wrong in the next five years. I think of it kind of like running with scissors,” says Constellation Research analyst Steve Wilson at the Oct. 26 Connected Enterprise conference hosted by his company. Constellation Research Connected Enterprise conference From left to right: Shawn Wiora, CEO of Maxxsure, Silicon Valley Product Exec Chirag Mehta, and Aron Dutta, Global Head of Blockchain at IBMTo read this article in full or to leave a comment, please click here

CenturyLink will acquire Level 3 Communications in $34B deal

CenturyLink plans to acquire internet backbone company Level 3 Communications in a US$34 billion cash and stock deal that aims to consolidate the networks and customers of the two companies.The combined company, operating in more than 60 countries, will be able to offer CenturyLink's larger enterprise customers the benefits of a larger global presence, and will also be positioned to further invest in the reach and speed of its broadband infrastructure for small businesses and consumers, the companies said.CenturyLink is currently focused on global communications, hosting, cloud, and IT services, offering both network and data systems management with more than 55 data centers in North America, Europe, and Asia. It provides broadband, voice, video, data, and managed services over a 250,000-mile U.S. fiber network and a 300,000-mile international transport network.To read this article in full or to leave a comment, please click here

CenturyLink will acquire Level 3 Communications in $34B deal

CenturyLink plans to acquire internet backbone company Level 3 Communications in a US$34 billion cash and stock deal that aims to consolidate the networks and customers of the two companies.The combined company, operating in more than 60 countries, will be able to offer CenturyLink's larger enterprise customers the benefits of a larger global presence, and will also be positioned to further invest in the reach and speed of its broadband infrastructure for small businesses and consumers, the companies said.CenturyLink is currently focused on global communications, hosting, cloud, and IT services, offering both network and data systems management with more than 55 data centers in North America, Europe, and Asia. It provides broadband, voice, video, data, and managed services over a 250,000-mile U.S. fiber network and a 300,000-mile international transport network.To read this article in full or to leave a comment, please click here

Joomla websites attacked en masse using recently patched exploits

Attackers are aggressively attacking Joomla-based websites by exploiting two critical vulnerabilities patched last week.The flaws allow the creation of accounts with elevated privileges on websites built with the popular Joomla content management system, even if account registration is disabled. They were patched in Joomla 3.6.4, released Tuesday.Hackers didn't waste any time reverse engineering the patches to understand how the two vulnerabilities can be exploited to compromise websites, according to researchers from Web security firm Sucuri.To read this article in full or to leave a comment, please click here

Joomla websites attacked en masse using recently patched exploits

Attackers are aggressively attacking Joomla-based websites by exploiting two critical vulnerabilities patched last week.The flaws allow the creation of accounts with elevated privileges on websites built with the popular Joomla content management system, even if account registration is disabled. They were patched in Joomla 3.6.4, released Tuesday.Hackers didn't waste any time reverse engineering the patches to understand how the two vulnerabilities can be exploited to compromise websites, according to researchers from Web security firm Sucuri.To read this article in full or to leave a comment, please click here

How DNS Works: A Primer

If Linux never was: Imagining an alternate reality without Linux

Ever read a story so depressing, so utterly devoid of happiness, that you wonder why on Earth any fool would take the time to write it down? Just solid sadness beginning to end.This, right here, is one of those stories.This dismal little tale also makes use of what is quite possibly the most over-used (and over-rated) plot device in the history of mankind: the butterfly effect. You know: the notion that a simple little thing can have extreme consequences. A butterfly flaps its wings in Sheboygan, and two days later, a hurricane hits Walla Walla. Because—the butterfly effect. Just a dreadful crutch used by hack writers to move forward a story when they can’t come up with any original ideas.To read this article in full or to leave a comment, please click here

Broadcom Strikes 100G Ethernet Harder With Tomahawk-II

Because space costs so much money and having multiple machines adds complexity and even more costs on top of that, there is always pressure to increase the density of the devices that provide compute, storage, and networking capacity in the datacenter. Moore’s Law, in essence, doesn’t just drive chips, but also the devices that are comprised of chips.

Often, it is the second or third iteration of a technology that takes off because the economics and density of the initial products can’t match the space and power constraints of a system rack. Such was the case with the initial 100 …

Broadcom Strikes 100G Ethernet Harder With Tomahawk-II was written by Timothy Prickett Morgan at The Next Platform.

What Haunts IT Pros?

The paranoid user’s guide to Windows 10 privacy

Since its release, a major point of controversy with Windows 10 has been the many ways that it can track your personal activity and gather other data about you. Many people don’t mind sharing personal information in exchange for enabling or enhancing a helpful app or service.To read this article in full or to leave a comment, please click here(Insider Story)

IDG Contributor Network: IT departments becoming ‘obsolete’

Online services and workers choosing the tools they want to work with, rather than employees being dictated to by in-house IT experts, means the IT department’s functions are now primarily redundant, says Japan-based Brother.The printer maker refers to IT departments’ control over technology as “dark days” in its web-based advertorial feature in the British national newspaper the Telegraph in September.To read this article in full or to leave a comment, please click here

IDG Contributor Network: IT departments becoming ‘obsolete’

Online services and workers choosing the tools they want to work with, rather than employees being dictated to by in-house IT experts, means the IT department’s functions are now primarily redundant, says Japan-based Brother.The printer maker refers to IT departments’ control over technology as “dark days” in its web-based advertorial feature in the British national newspaper the Telegraph in September.To read this article in full or to leave a comment, please click here

Beat the bad guys at their own game with SafeBreach’s simulated cyberattacks

The best way to get experience with most jobs or tasks is to do them. It’s difficult to learn how to drive a car without getting behind the wheel. Soldiers need to face the enemy in order to gain combat experience. And IT administrators have to experience and mitigate attacks to learn how to best defend their networks. The problem with these scenarios is that they involve a degree of risk. It’s not all that helpful to learn how to counter a cyberattack if the first one you experience puts your company out of business. That’s where the SafeBreach continuous security validation platform comes in. Deployed as a service, through the cloud or internally, it can show cybersecurity teams exactly where the network vulnerabilities are and how to plug those holes. It can even run wargames so that IT teams can learn the best ways to respond to attacks on their actual networks.To read this article in full or to leave a comment, please click here(Insider Story)

Beat the bad guys at their own game with SafeBreach’s simulated cyberattacks

The best way to get experience with most jobs or tasks is to do them. It’s difficult to learn how to drive a car without getting behind the wheel. Soldiers need to face the enemy in order to gain combat experience. And IT administrators have to experience and mitigate attacks to learn how to best defend their networks.To read this article in full or to leave a comment, please click here(Insider Story)

New products of the week 10.31.16

New products of the weekOur roundup of intriguing new products. Read how to submit an entry to Network World's products of the week slideshow.Atlantis Workspace Infrastructure integrated with CitrixKey features: Atlantis integrated workspace infrastructure into the Citrix management suite. The combination of applications, management and infrastructure into a single PaaS solution will lower cost and complexity for managing virtual workspaces. More info.To read this article in full or to leave a comment, please click here

New products of the week 10.31.16

New products of the weekOur roundup of intriguing new products. Read how to submit an entry to Network World's products of the week slideshow.Atlantis Workspace Infrastructure integrated with CitrixKey features: Atlantis integrated workspace infrastructure into the Citrix management suite. The combination of applications, management and infrastructure into a single PaaS solution will lower cost and complexity for managing virtual workspaces. More info.To read this article in full or to leave a comment, please click here

GRE over IPSec Tunnel and NAT Between Cisco and VyOS

The goal of this tutorial is to provide a configuration for Cisco and VyOS network devices with configured PAT (Port Address Translation) that connect two remote sides A and B through point-to-point GRE tunnel encapsulated into a IPsec tunnel. In a previous tutorial we proved that GRE tunnels in conjunction with IPsec tunnels transmit multicast traffic while data integrity, authentication and confidentiality was in place. I also provided a simple configuration of GRE, IPsec tunnel and OSPF routing protocol on the Cisco and VyOS routers. In this tutorial I will go further and provide full configuration of  the all network devices including PAT and access-lists.  

Picture 1 - Network Topology

Topology Description - Side A

Each side has a Layer 2 Cisco switch located in a LAN network. A switch connects hosts to its switchports. Each switchport is assigned to a particular VLAN. For instance, a host PC1 is connected to the switch SW1 and the switchport is assigned to a VLAN 100. Hosts in VLAN 100 (subnet 192.168.1.0/24) have guaranteed access to a remote subnet 192.168.2.0/24 via GRE/IPsec tunnel. A NAT access-list configured on a router R1 ensures that IP address of the host in VLAN 100 is not translated by PAT when a destination address is Continue reading

Considerations for Running Docker for Windows Server 2016 with Hyper-V VMs

We often get asked at Docker, “Where should I run my application? On bare metal, virtual or cloud?” The beauty of Docker is that you can run a container anywhere, so we usually answer this question with “It depends.” Not what you were looking for, right?

To answer this, you first need to consider which infrastructure makes the most sense for your application architecture and business goals. We get this question so often that our technical evangelist, Mike Coleman has written a few blogs to provide some guidance:

• To Use Physical Or To Use Virtual: That Is The Container Deployment Question
• So, When Do You Use A Container Or VM?

During our recent webinar, titled “Docker for Windows Server 2016”, this question came up a lot, specifically what to consider when deploying a Windows Server 2016 application in a Hyper-V VM with Docker and how it works. First, you’ll need to understand the differences between Windows Server containers, Hyper-V containers, and Hyper-V VMs before considering how they work together.

A Hyper-V container is a Windows Server container running inside a stripped down Hyper-V VM that is only instantiated for containers.

This provides additional kernel isolation and separation from Continue reading

Black Friday isn’t dead in 2016

The Black Friday 2016 headlines are dire:   ”Is Black Friday dead?”  “Black Friday: Is the commercial holiday dying?” ”Black Friday is Dead, Long Live Black Friday” But no, Black Friday isn’t really dead and oodles of computers, smartphones, video game consoles and TVs will be snapped up at bargain prices on Friday, Nov. 25 itself, as well as pre-Thanksgiving, on Thanksgiving Day and on the Saturdays leading up to Christmas. Oh, yeah, even Cyber Monday will grab stragglers on Nov. 28.To read this article in full or to leave a comment, please click here