May CCDE Practical exam is cancelled worldwide,all the details !

May 11 2017, CCDE Practical exam has been cancelled worldwide on May 4, 2017.   People reacted differently for this cancellation.   I have 200+ CCDE candidates in my study groups, thus I think I am the person who can provide you the most accurate information about the reaction of the candidates.   Most, if […]

The post May CCDE Practical exam is cancelled worldwide,all the details ! appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

A Warm Welcome to the Summer Internship Students

The oVirt project is glad to announce that five talented students will be joining the oVirt community over the summer period, as part of the 2017 Google Summer of Code (GSoC) and Outreachy internship programs.

Both GSoC and Outreachy focus on getting more student developers interested in open source software development, as well as providing opportunities for talented people, underrepresented in the tech world, to gain valuable technology experience. The students will spend their summer break writing code, learning about open source development and documentation, and earning a stipend.

Joining us as part of GSoC are:

Tasdik Rahman will be working on adding Ansible roles for oVirt-utilities, for easier testing and automated redeployment. His mentor will be Lukas Svaty.

Shubham Dubey will be working on configuring backup storage for Ovirt. The idea is to replace the need for a dedicated storage domain for backup and disaster recovery. Shubham's mentor will be Maor Lipchuk.

Joining us as part of Outreachy, are:

Anastasia Antsiferova will be working on the oVirt log analyser. Her mentor will be Milan Zamazal.

Leni Kadali will be working on documetation. His mentor will be Jason Brooks.

Valentina Makarova will be working on implementing oVirt integration tests using Continue reading

John Oliver is wrong about Net Neutrality

People keep linking to John Oliver bits. We should stop doing this. This is comedy, but people are confused into thinking Oliver is engaging in rational political debate:


Enlightened people know that reasonable people disagree, that there's two sides to any debate. John Oliver's bit erodes that belief, making one side (your side) sound smart, and the other side sound unreasonable.

The #1 thing you should know about Net Neutrality is that reasonable people disagree. It doesn't mean they are right, only that they are reasonable. They aren't stupid. They aren't shills for the telcom lobby, or confused by the telcom lobby. Indeed, those opposed to Net Neutrality are the tech experts who know how packets are routed, whereas the supporters tend only to be lawyers, academics, and activists. If you think that the anti-NetNeutrality crowd is unreasonable, then you are in a dangerous filter bubble.

Most everything in John Oliver's piece is incorrect.

For example, he says that without Net Neutrality, Comcast can prefer original shows it produces, and slow down competing original shows Continue reading

GOAI: Keeping Databases, Analytics, And Machine Learning All On The GPU

Moving data is the biggest problem in computing, and probably has been since there was data processing if we really want to be honest about it. Because of the cost of bandwidth, latency, energy, and iron to do multiple stages of processing on information in a modern application that might include a database as well as machine learning algorithms against stuff stored there as well as from other sources, you want to try to do all your computation from the memory of one set of devices.

That, in a nutshell, is what the GPU Open Analytics Initiative is laying the …

GOAI: Keeping Databases, Analytics, And Machine Learning All On The GPU was written by Timothy Prickett Morgan at The Next Platform.

Time to Overhaul Your Campus Network

Over the last few years cloud service providers have steadily adopted white-box Ethernet switches and modern, flexible Network Operating Systems into their ecosystems. Mega data center operators, such as Google, Amazon, and Microsoft, have replaced their proprietary gear with white boxes in their production environments. The major benefit of this paradigm shift is significantly reduced CapEx and OpEx, a more reliable environment, and customized traffic flows for efficiency.  According to IDC, the worldwide ODM direct Ethernet switch (white box) market was $677 million in 2016 and is expected to exceed $900 million in 2017. That’s a growth rate of 33%, and the trend is accelerating.

The shift in white-box adoption started as early as 2012, but has been limited to data centers for many reasons. Even though Enterprise IT executives are motivated to adopt white-boxes, the migration has been slow and challenging. Essentially, the Enterprise network is distinctly different from data center network in many ways.

overhaul_campus_network

  • The data center network is usually homogeneous, while the Enterprise network is heterogeneous. Typically, Enterprises require a variety of speeds ranging from 100Mbps to 100Gbps, and run over different cables, including various types of copper and fiber. The increasingly deployed Power over Ethernet (PoE) Continue reading

Open vSwitch Day at OpenStack Summit 2017

This is a “liveblog” (not quite live, but you get the idea) of the Open vSwitch Open Source Day happening at the OpenStack Summit in Boston. Summaries of each of the presentations are included below.

Kubernetes and OVN on Windows

The first session was led by Cloudbase Solutions, a company out of Italy that has been heavily involved in porting OVS to Windows with Hyper-V. The first part of the session focused on bringing attendees up to speed on the current state of OVS and OVN on Hyper-V. Feature parity and user interface parity between OVS/OVN on Hyper-V is really close to OVS/OVN on Linux, which should make it easier for Linux sysadmins to use OVS/OVN on Hyper-V as well.

The second part of the session showed using OVN under Kubernetes to provide networking between Windows containers on Windows hosts and Linux containers on Linux hosts, including networking across multiple cloud providers.

Lightning Talks

The lightning talks were all under 5 minutes, so a brief summary of these are provided below:

  • Joe Stringer showed how to set up OVS with an OpenFlow controller (Faucet) to do networking between multiple hosts in 5 minutes or less.
  • A gentleman (I didn’t catch Continue reading

Open vSwitch Day at OpenStack Summit 2017

This is a “liveblog” (not quite live, but you get the idea) of the Open vSwitch Open Source Day happening at the OpenStack Summit in Boston. Summaries of each of the presentations are included below.

Kubernetes and OVN on Windows

The first session was led by Cloudbase Solutions, a company out of Italy that has been heavily involved in porting OVS to Windows with Hyper-V. The first part of the session focused on bringing attendees up to speed on the current state of OVS and OVN on Hyper-V. Feature parity and user interface parity between OVS/OVN on Hyper-V is really close to OVS/OVN on Linux, which should make it easier for Linux sysadmins to use OVS/OVN on Hyper-V as well.

The second part of the session showed using OVN under Kubernetes to provide networking between Windows containers on Windows hosts and Linux containers on Linux hosts, including networking across multiple cloud providers.

Lightning Talks

The lightning talks were all under 5 minutes, so a brief summary of these are provided below:

  • Joe Stringer showed how to set up OVS with an OpenFlow controller (Faucet) to do networking between multiple hosts in 5 minutes or less.
  • A gentleman (I didn’t catch Continue reading

How to protect your Google and Facebook accounts with a security key

In late March when I got an unsettling message on my Gmail account: "Warning: Google may have detected government-backed attackers trying to steal your password."Google sends them out when it detects a "government-backed attacker" has attempted to hack an account through phishing or malware.Last time I saw one, I added two-factor authentication to many of my accounts. This time it prompted me to ask: Can I do even better? Martyn Williams/IDGNS A security warning message displayed by Google.To read this article in full or to leave a comment, please click here

How to protect your Google and Facebook accounts with a security key

In late March when I got an unsettling message on my Gmail account: "Warning: Google may have detected government-backed attackers trying to steal your password."Google sends them out when it detects a "government-backed attacker" has attempted to hack an account through phishing or malware.Last time I saw one, I added two-factor authentication to many of my accounts. This time it prompted me to ask: Can I do even better? Martyn Williams/IDGNS A security warning message displayed by Google.To read this article in full or to leave a comment, please click here

New IoT malware targets 100,000 IP cameras via known flaw

Over 100,000 internet-connected cameras may be falling prey to a new IoT malware that’s spreading through recently disclosed vulnerabilities in the products.  The malware, called Persirai, has been found infecting Chinese-made wireless cameras since last month, security firm Trend Micro said on Tuesday. The malware does so by exploiting flaws in the cameras that a security researcher reported back in March.  The researcher, Pierre Kim, found that the vulnerabilities can allow an attacker to remotely execute code on the cameras, effectively hijacking them.At least 1,250 camera models produced by a Chinese manufacturer possess the bugs, the researcher went on to claim.To read this article in full or to leave a comment, please click here

New IoT malware targets 100,000 IP cameras via known flaw

Over 100,000 internet-connected cameras may be falling prey to a new IoT malware that’s spreading through recently disclosed vulnerabilities in the products.  The malware, called Persirai, has been found infecting Chinese-made wireless cameras since last month, security firm Trend Micro said on Tuesday. The malware does so by exploiting flaws in the cameras that a security researcher reported back in March.  The researcher, Pierre Kim, found that the vulnerabilities can allow an attacker to remotely execute code on the cameras, effectively hijacking them.At least 1,250 camera models produced by a Chinese manufacturer possess the bugs, the researcher went on to claim.To read this article in full or to leave a comment, please click here

Threat detection automation won’t solve all your problems

This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.

A recent Network World article argued that automated threat detection (TD) is more important than automated incident response (IR). But the piece was predicated on flawed and misguided information.

The article shared an example of a financial institution in which analysts investigated 750 alerts per month only to find two verified threats. The piece claimed that, in this scenario, automated IR could only be applied to the two verified threat instances, therefore making automated threat detection upstream a more important capability by “orders of magnitude.”

To read this article in full, please click here

Threat detection automation won’t solve all your problems

This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.

A recent Network World article argued that automated threat detection (TD) is more important than automated incident response (IR). But the piece was predicated on flawed and misguided information.

The article shared an example of a financial institution in which analysts investigated 750 alerts per month only to find two verified threats. The piece claimed that, in this scenario, automated IR could only be applied to the two verified threat instances, therefore making automated threat detection upstream a more important capability by “orders of magnitude.”

To read this article in full or to leave a comment, please click here

Threat detection automation won’t solve all your problems

This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.

A recent Network World article argued that automated threat detection (TD) is more important than automated incident response (IR). But the piece was predicated on flawed and misguided information.

The article shared an example of a financial institution in which analysts investigated 750 alerts per month only to find two verified threats. The piece claimed that, in this scenario, automated IR could only be applied to the two verified threat instances, therefore making automated threat detection upstream a more important capability by “orders of magnitude.”

To read this article in full or to leave a comment, please click here

Threat detection automation won’t solve all your problems

This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.A recent Network World article argued that automated threat detection (TD) is more important than automated incident response (IR). But the piece was predicated on flawed and misguided information.The article shared an example of a financial institution in which analysts investigated 750 alerts per month only to find two verified threats. The piece claimed that, in this scenario, automated IR could only be applied to the two verified threat instances, therefore making automated threat detection upstream a more important capability by “orders of magnitude.”To read this article in full or to leave a comment, please click here

Threat detection automation won’t solve all your problems

This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.A recent Network World article argued that automated threat detection (TD) is more important than automated incident response (IR). But the piece was predicated on flawed and misguided information.The article shared an example of a financial institution in which analysts investigated 750 alerts per month only to find two verified threats. The piece claimed that, in this scenario, automated IR could only be applied to the two verified threat instances, therefore making automated threat detection upstream a more important capability by “orders of magnitude.”To read this article in full or to leave a comment, please click here

Microsoft fixes 55 vulnerabilities, 3 exploited by Russian cyberspies

Microsoft released security patches Tuesday for 55 vulnerabilities across the company's products, including for three flaws that are already exploited in targeted attacks by cyberespionage groups.Fifteen of the vulnerabilities fixed in Microsoft's patch bundle for May are rated as critical and they affect Windows, Microsoft Office, Microsoft Edge, Internet Explorer, and the malware protection engine used in most of the company's anti-malware products.System administrators should prioritize the Microsoft Office patches because they address two vulnerabilities that attackers have exploited in targeted attacks over the past two months. Both of these flaws, CVE-2017-0261 and CVE-2017-0262, stem from how Microsoft Office handles Encapsulated PostScript (EPS) image files and can lead to remote code execution on the underlying system.To read this article in full or to leave a comment, please click here

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