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Entries for 'Lori MacVittie'

articlecloudsdnsdas April 24, 2014 by Lori MacVittie
#SDN #cloud #SDAS Things you need to know before diving into SDN... Way back in the early days of the Internet scalability was an issue (the more things change...). One of the answers to this problem was to scale out web servers using a fairly well-proven concept called load balancing. Simply put, distribute the load across web servers to make sure everyone gets served in a timely fashion. We see this in action at stores every day when more checkout lines are added as demand increases. Well, we...
articlecloudsdnsdas April 21, 2014 by Lori MacVittie
#SDN #SDAS #cloud Things you need to know before diving into SDN... We've talked before about the bifurcation of the network, which is driven as much by the evolution of network services from "nice to have" to "critical" as it is by emerging architectures. The demarcation line in the network stack has traditionally been - and remains - between layers 3 and 4 in the OSI model. The reason for this is that there is a transition as you move from layer 3 to layer 4 from sta...
#SDAS #SDN #Virtualization Like moving to IPv6, simply picking up your existing network architecture and moving it to a completely new one is not going to happen overnight. There will undoubtedly still be "traditional" networks hanging around even when SDN adoption is considered mainstream and fully mature. That's the nature of evolution; it doesn't happen in the blink of eye, it takes time. Right now organizations are faced with a variety of options in networking. From VXLAN to NVGRE, from tr...
#heartbleed #PFS #infosec Last week was a crazy week for information security. That's probably also the understatement of the year. With the public exposure of Heartbleed, everyone was talking about what to do and how to do it to help customers and the Internet, in general, deal with the ramifications of such a pervasive vulnerability. If you still aren't sure, we have some options available, check them out here: The most significant impact on organizations was related to what amounts to th...
articlesecuritysystem.string[] April 15, 2014 by Lori MacVittie
#heartbleed #infosec #SSL There are a variety of opinions on the seriousness of Heartbleed being put forth ranging from "it's not the end of the world" to "the sky is falling, duck and cover." Usually the former cites the relatively low percentage of sites impacted by Heartbleed, pegged at about 17% or 500,000 sites by Netcraft. The latter cite the number of consumers impacted, which is a way bigger number to be sure. Sites tracking the impact to users suggest many of the largest sites have pote...
#devops #SDN The importance of APIs and programmable data paths to the future of networking.   OpenStack. OpenDaylight. SDN. Cloud. It's all about abstraction, about APIs and "software-defined" (which really means software-controlled, but this is neither the time or place to get into that debate). It's about jailbreaking the network. Enabling access to features and functionality in a way that results in new services, increased responsiveness and overall, the operationalization of the net...
#IPS #Infosec #F5 #SDAS Despite claims that there exists (or will, look out!) a mythical "god box" for the enterprise data center, capable of performing every data center function imaginable, it remains, well, mythical. Efforts to effectively secure the data center and the applications it delivers therefore requires a collaborative approach between best-of-breed technologies. But if collaboration across functional IT groups - development, operations, network and security - remains as elusive a...
#F5 #VMware Cloud and mobility are forcing us to think about access to what matters: applications. The industry often talks about how the data center perimeter is expanding,necessarily, due to technological shifts such as cloud and mobility and BYOD.  But that isn't really the case. If you look closely, you'll see that the perimeter is actually shrinking, getting tighter and tighter around the data center. With just about everything web-enabled these days, the need for access to network to...
#SDN #Devops #Cloud You gots to have some management .... Nick Lippis, who writes the eponymously named Lippis Report, had a fascinating report on the differences between enterprise and service provider environments with respect to network <something> virtualization. He observes, through a survey of the ONUG (Open Networking User Group) membership, that what the enterprise needs is Network Service Virtualization (NSV), which he and ONUG define as the virtualization of "enterpris...
#F5 #virtualization #SDAS #webperf You've all heard the news, right? Load balancers are dead. But that doesn't mean load balancing is dead and, in fact, it's a pretty critical piece of today's emerging technologies. That's because when you look out at what's going on and what's growing like weeds in a Midwest corn field, it's applications. Applications need load balancing to scale because at some point, operational axioms start proving themselves true and load on an individual application caus...
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