pfSense 2.4.2 is a security and bugfix release that updates the OpenSSL packages to version 1.0.2m to fix two recently disclosed vulnerabilities
Lots of cosmetic changes are present in this release, and the WebGUI received multiple enhancements.
Dr. Robin DeRosa, a pioneer in the open educational resource movement, discusses how an open approach can make higher education more affordable and enrich student learning.
Whatever your learning style, there's a resource for learning Python designed just for you.
opensource.com: Embracing DevOps enabled Rangers to become more nimble, fast, and valuable to the developer community.
The easiest way to install WordPress on a CentOS server.
ostechnix: This guide describes three different methods to comment out multiple lines at once in Vim editor.
BIND (Berkeley Internet Name Domain) is the most used DNS software over the Internet.
ServerWatch: Chris Wright, CTO of Red Hat discusses the intersection of Windows and Linux containers and how Red Hat now works with Microsoft.
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Network World Networking
With the billions of Internet of Things (IoT) devices projected to come on-stream over the next few years, questions are arising as to just where the bandwidth and radio channels are going to come from to make it all work.
The sensors need to send their likely increasingly voluminous data back to networks wirelessly to be processed.
But there’s a finite amount of radio spectrum available, and much of it is already allocated to incumbent primary users, such as public safety agencies. Other spectrum is dedicated to mobile network operators who have licensed chunks of it. Some is leftover in the millimeter frequencies, which is thus far pretty much untested in the real world — it’s going to be used for 5G in the future.
SD-WAN is the hottest topic in networking today. On the one hand, analyst reports state that this industry is in its infancy with less than 5% adoption through 2017. On the other hand, the same analysts project over 50% customer adoption in the next 36 months. Why has adoption been modest to-date, and why is 10X acceleration expected now? The answer lies in understanding the differences between the first generation of SD-WAN (Gen1) and the second generation of SD-WAN (Gen2).
In the old days, WAN routers were focused on providing connectivity using MPLS. The goal of Gen1 SD-WAN was to enable usage of broadband for connectivity. So Gen1 SD-WAN provided better VPN manageability and improved the delivery of voice traffic over broadband connections. However, like many first-generation products, Gen1 SD-WAN has serious limitations, three of which I examine below.
Everyone who has a stake in the internet of things, from device manufacturers to network service providers to implementers to customers themselves, makes important contributions to the security or lack thereof in enterprise IoT, attendees at Security of Things World were told.
“The key to all [IoT devices] is that they are networked,” Jamison Utter, senior business development manager at Palo Alto Networks told a group at the conference. “It’s not just a single thing sitting on the counter like my toaster, it participates with the network because it provides value back to business.”
“I think the media focuses a lot on consumer, because people reading their articles and watching the news … think about it, but they’re not thinking about the impact of the factory that built that consumer device, that has 10,000 or 20,000 robots and sensors that are all IoT and made this happen.”
If you’ve researched purchasing an SD-WAN solution from an ISP, there’s a good chance it’s not your ISP who is providing the actual SD-WAN service. [say what?!]
Way back in 2016… the demand for SD-WAN emerged so furiously, ISP’s have had to make a quick decision: 1) roll-out a solution immediately; or 2) get tabbed as an old rickety out-of-date ISP. Consequently, rather than building their own solution (a lengthy process), most ISP’s have decided to take the easy route and white label someone else’s vetted product.
Many of these ISP’s have chosen VeloCloud to be the SD-WAN solution under the hood.
Every vendor today is spewing about the importance of managing the user experience. What this actually means, however, remains a mystery to most, and there are precious few approaches available to help you get a handle on the issue.
Good and predictable user experience is no longer negotiable in this age of constant online business communications. Computer networks have effectively become the single most important tool driving corporate productivity.
But user experience is one of the most difficult problems to address, especially on enterprise access networks, because each experience is influenced by a long list of moving parts, many of which are increasingly outside the control of IT.
Over the past decade, network management tools have evolved from being fault based to performance based. This has become a critical element in running infrastructure because faults don’t matter as much.
That might seem like a strange thing to say, but consider the fact that critical infrastructure such as switches, routers, Wi-Fi access points and servers are deployed in a way to protect against outages. Infrastructure is built so redundantly today that any hardware device can go down and its likely no one will notice.
A bigger problem is managing user performance. Often users call in about a certain application not working well, but when the engineer looks at the dashboard, everything is green. Performance problems are much harder to diagnose and can kill employee productivity.
When Cisco announced its intent-based networking (IBN) strategy this summer, CEO Chuck Robbins called it the company’s biggest announcement in years.
Blockchain, also referred to as distributed ledger, is the concept behind the success of Bitcoin and provides a dynamic digital register of transactions. Think of it as a database that’s distributed throughout a network. Information is continually shared and reconciled throughout multiple nodes and each one has an identical copy of the database. Transactions within this database are audited and agreed upon by consensus. This decentralized method of keeping track of changes ensures the ledger can’t be practically controlled by any one entity, eliminates the possibility of single-points of failure, and allows for the verification of transactions without the need for third-party intervention. Since each interaction is public, blockchain technology offers a reliable, incorruptible transaction-based infrastructure and the value it provides isn’t just limited to cryptocurrency.
Firewalls have become ubiquitous across enterprises over the past decade, but the combination of new and varied access methods combined with increasingly sophisticated attacks has forced network operators and security professionals to constantly evaluate their defenses.
Typically, firewalls are on a five-year refresh cycle, according to Gartner researcher Adam Hils, and that gives organizations the opportunity to evaluate fairly regularly what type of firewall and what features best suit their needs.
+MORE AT NETWORK WORLD: What is a firewall? +
When you buy your SD-WAN, or for that matter any WAN technology, you sort of assume that the vendor has the legal right to sell it to you.
But what happens if they don’t? What happens if you’ve built your WAN on an illegally acquired technology?
The question is not just theoretical. Last week, FatPipe sent me a press release pointing out how United States PTO Patent Court upheld a signature claim to its U.S. patent (number 6,775,235) for load balancing across disparate networks. Load balancing is a critical component of all SD-WAN products. As such, FatPipe could, in theory, claim licensing fees from SD-WAN players and their users.
For a very long time, IT professionals have made storage investments based on a few key metrics – how fast data can be written to a storage media, how fast it can be read back when an application needs that information, and of course, the reliability and cost of that system.
The critical importance of storage performance led us all to fixate on latency and how to minimize it through intelligent architectures and new technologies.
Given the popularity of flash memory in storage, the significance of latency is not about to fade away, but a number of other metrics are rapidly rising in importance to IT teams. Yes, cost has always been a factor in choosing a storage investment, but with cloud and object storage gaining popularity, the price of storage per gigabyte is more than a function of speed and capacity; it is also the opportunity cost of having to power and manage that resource. When evaluating whether to archive data on premises, or to send it offsite, IT professionals are now looking at a much wider definition of overall cost.
Digital transformation is on every IT and business leader’s radar today. The path to it, though, may not be simple. While many industry pundits like to call out the likes of Uber and AirBnb, those digital natives didn’t have to worry about disrupting an existing business.
To help mainstream businesses make that jump to a digital organization, Riverbed launched two new solutions at its Disrupt customer event last week in New York City.
Enhanced network performance management
The first is a new version of its network and application performance management platform, SteelCentral, enabling IT staff to better understand digital experiences. This aligns with a new movement among the NPM/APM vendors to shift to digital experience management (DEM), providing visibility into customer or worker experience regardless of whether the infrastructure is on premises, in the public cloud or in a hybrid environment.
As more organizations look to enable hybrid cloud computing, a big question remains: How do I connect my network to the cloud? This week Google Cloud Platform and Amazon Web Services each released new products that make that process easier.
Google’s Dedicated Interconnect is now generally available
Dedicated Interconnect is an important way for customers to connect to the public cloud. It allows organizations to connect their on-premises resources to a colocation facility and then that co-lo facility has a direct network connection to the public cloud. Public IaaS cloud providers like Google want to give their customers access to fast connections to their cloud, but they don’t want to connect to each individual customer’s site, so they’ve created this co-lo based Interconnect. Google runs the Interconnect and offers either a 99.9 or 99.99% service level agreement. Google is working with a handful of colocation vendors as the middle-man, including Equinix, Digital Realty and Infomart.
There seems to be a shift in our industry from wireless 802.11n to 802.11ac, as we have seen large leaps forward in bandwidth and client-saturation handling. With more wireless options in use in the workplace, widespread connectivity continues to rise and wireless requirements are becoming greater and greater.
Now, with Wave 2 becoming more common, is 802.11ac really able to handle the tsunami-like wave of wireless internet requests to meet this growing demand?
There's only one way to find out. We need to step out of the comfort zone provided by past wireless technologies and expand the idea of what wireless is capable of providing to meet these demands.
IPv6 has been gaining traction since it was developed in the late 1990s, and enterprises that are implementing it now are considered to be among the early majority – meaning widespread adoption is well underway – so if you haven’t already begun, you need to start planning IPv6 deployment.
VMWare announced on November 2 that it intends to acquire VeloCloud Networks. The value of the proposed acquisition has not yet been announced, and VMWare expects it to close in Q4 of its FY18 which ends on February 2, 2018.
This acquisition appears to be receiving a more positive message overall in the market than Cisco’s acquisition of Viptela earlier this year. In Viptela’s case, being acquired by Cisco immediately raised questions about where this product would fit alongside the existing IWAN and Meraki products, its impact on the ecosystem of IWAN-related products (Glue Networks, LiveAction, etc.) and what the final product mix would look like. Many of these questions have subsequently been answered, but the immediate reaction was one of uncertainty and concern.
Let’s make a deal
VeloCloud is a leader, and some would say the leader, in the SD-WAN market. The company has been in the space since its founding in 2012 and has raised $84 million in private funding, according to CrunchBase. It claims around 1,000 enterprise customers (1,000).
The VeloCloud acquisition will help VMware compete with Cisco, who acquired SD-WAN provider Viptela for $610 million in May. VeloCloud isn’t VMware’s first virtual networking acquisition. Back in 2012, the company acquired Nicira, which became the basis for its NSX network virtualization offering. Integrating the two technologies creates an interesting end-to-end solution. VeloCloud’s approach of coupling appliances with aspects of a cloud service, will play well with VMware’s premise-oriented strategy.
VMware today announced plans to acquire VeloCloud, one of the leading companies in the fast-growing software-defined Wide Area Network (SD-WAN) market.
SD-WAN represents a new way to manage network connectivity to branch and remote offices using software-defined networking principles. Software-based SD-WAN offerings from companies like VeloCloud can aggregate multiple types of connections, including broadband, MPLS and cellular, to create more reliable connections that are often less expensive than a pure MPLS use. Research firm IDC predicts SD-WAN will be a more than $1 billion market this year, and grow at 69% to more than $8 billion by 2021.