An IoT botnet is partly behind Friday’s massive DDOS attack

Malware that can build botnets out of IoT devices is at least partly responsible for a massive distributed denial-of-service attack that disrupted U.S. internet traffic on Friday, according to network security companies.Since Friday morning, the assault has been disrupting access to popular websites by flooding a DNS service provider called Dyn with an overwhelming amount of internet traffic.Some of that traffic has been observed coming from botnets created with the Mirai malware that is estimated to have infected over 500,000 devices, according to Level 3 Communications, a provider of internet backbone services.To read this article in full or to leave a comment, please click here

An IoT botnet is partly behind Friday’s massive DDOS attack

Malware that can build botnets out of IoT devices is at least partly responsible for a massive distributed denial-of-service attack that disrupted U.S. internet traffic on Friday, according to network security companies.Since Friday morning, the assault has been disrupting access to popular websites by flooding a DNS service provider called Dyn with an overwhelming amount of internet traffic.Some of that traffic has been observed coming from botnets created with the Mirai malware that is estimated to have infected over 500,000 devices, according to Level 3 Communications, a provider of internet backbone services.To read this article in full or to leave a comment, please click here

Loggly aims to reveal what matters in log data  

This column is available in a weekly newsletter called IT Best Practices.  Click here to subscribe.  Logs are one of those things that a lot of people take for granted. Every software, device and application generates its own logs, and they are often overlooked until something happens and someone needs to dig into the logs to try to discover a root cause of the issue. Companies that treat logs in this way are missing out on an opportunity to improve their business.Logs have an interesting property that makes them quite valuable: they are the only common thread across a company's entire technology stack. It doesn't matter if it's network devices, security devices, operating systems or applications—all generate logs. Because of that, and with the proper tools, it's possible to look end-to-end in the infrastructure and the application stack using logs. The result is the ability to see what is happening from node to node, and from process to process.To read this article in full or to leave a comment, please click here

Loggly aims to reveal what matters in log data  

This column is available in a weekly newsletter called IT Best Practices.  Click here to subscribe.  Logs are one of those things that a lot of people take for granted. Every software, device and application generates its own logs, and they are often overlooked until something happens and someone needs to dig into the logs to try to discover a root cause of the issue. Companies that treat logs in this way are missing out on an opportunity to improve their business.Logs have an interesting property that makes them quite valuable: they are the only common thread across a company's entire technology stack. It doesn't matter if it's network devices, security devices, operating systems or applications—all generate logs. Because of that, and with the proper tools, it's possible to look end-to-end in the infrastructure and the application stack using logs. The result is the ability to see what is happening from node to node, and from process to process.To read this article in full or to leave a comment, please click here

Worth Reading: Facebook’s video views

The takeaway from Facebook’s bombshell that it had overstated a key measure of video ad viewership on its pages by about 80%: It’s not that the social-media giant “miscalculated” its numbers. It’s a fresh view into Facebook’s arrogance, both toward its advertisers and its nearly two billion users. Nothing’s new under the sun, of course — pride has goeth-ed before a fall for all of human history. And obviously does in the digital sphere, too: Facebook FB, +0.05% and its principal digital advertising rival, Google GOOG, +0.04% have been behaving as though customs and principles that have governed the advertising business for its entire history simply don’t apply to them. —Market Watch

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Extensive DDoS attack against Dyn restarts, could indicate a new use of old criminal tech

Attacks against DNS service provider Dyn resumed today after a two and a half hour lull, and could indicate a new application of an old criminal technology, experts say.Dyn hasn’t shared details on the type of DDoS attacks used nor the size of those attacks that have affected access to sites including Amazon, Etsy, GitHub, Shopify, Twitter and the New York Times.+More on Network World: Gartner Top 10 strategic technology trends you should know for 2017To read this article in full or to leave a comment, please click here

Extensive DDoS attack against Dyn restarts, could indicate a new use of old criminal tech

Attacks against DNS service provider Dyn resumed today after a two and a half hour lull, and could indicate a new application of an old criminal technology, experts say.Dyn hasn’t shared details on the type of DDoS attacks used nor the size of those attacks that have affected access to sites including Amazon, Etsy, GitHub, Shopify, Twitter and the New York Times.+More on Network World: Gartner Top 10 strategic technology trends you should know for 2017To read this article in full or to leave a comment, please click here

iPads and Apple TV aimed at transforming patient care

No one looks forward to a hospital stay, but the tech amenities at Jacobs Medical Center could make visits more comfortable for patients.With an iPad and Apple TV in every room, patients will be able to control room settings such as temperature, lighting and window shades. They can access games, log into their own social and entertainment apps, and control the TV. The iPad also provides access to a patient’s electronic medical records, including information such as medications, caregivers' names, diagnostic data, and upcoming lab work or medical procedures. RELATED: 14 go-to tools for Mac sysadmins | 25 CIO pay packages revealed | Tech jobs set for biggest raisesTo read this article in full or to leave a comment, please click here

On DNS and DDoS

The global DNS infrastructure provides the critical function of mapping seeming random sets of numbers in IP addresses (like 1.1.1.1) to a name that an Internet consumer may recognize (like www.myfavoritestore.com).   To scale to a global level, the DNS system was designed as a multi-level reference network that would allow any user on the Internet […]

Dyn issues affecting joint customers

Today there is an ongoing, large scale Denial-of-Service attack directed against Dyn DNS. While Cloudflare services are operating normally, if you are using both Cloudflare and Dyn services, your website may be affected.

Specifically, if you are using CNAME records which point to a zone hosted on Dyn, our DNS queries directed to Dyn might fail making your website unavailable, and presenting a “1001” error message.

Some popular services that might rely on Dyn for part of their operations include GitHub Pages, Heroku, Shopify and AWS.

1001 error

As a possible workaround, you might be able to update your Cloudflare DNS records from CNAMEs (referring to Dyn hosted records) to A/AAAA records specifying the origin IP of your website. This will allow Cloudflare to reach your origin without the need for an external DNS lookup.

Note that if you use different origin IP addresses, for example based on the geographical location, you may lose some of that functionality by using plain A/AAAA records. We recommend that you provide addresses for many of your different locations, so that load will be shared amongst them.

Customers with a CNAME setup (which means Cloudflare is not configured in your domain NS records) where the main Continue reading

Data Center Interconnect for Juniper Contrail (SDN Controller)

 

Juniper Contrail is Software Defined Networking (SDN) controller which automate the network provisioning in a Virtual Data Center. In traditionally server hyper-visor environment there is still need to configure and allow VLANs on Data Center switches ports connected with servers, which involves inordinate delays due to lengthy “Change Process” approval and dependency on many teams. But modern centers can not afford such delays for service provisioning as delay in service provisioning means lost of revenue.

The scope of this blog is to discuss:-

  1. How physical servers can talk with servers deployed inside SDN environment. .
  2. Layer 2 & Layer 3 Data Center Interconnect (DCI) solution between two enterprise Data Centers (DCs)

contrail

Above diagram shows architecture of  Contrail , quick overview of Contrail inner working described below, please follow the link for Contrail in depth reading (http://www.opencontrail.org/opencontrail-architecture-documentation/)

  1. Contrail  control node act as central brain.
  2. Contrail installs an instance of  vRouter on each compute node.
  3. Each vRouter on a compute node creates separate VRF (Virtual Routing and Forwarding table)  for each particular subnet for which a Virtual Machines are created.
  4. Full mesh MP-iBGP is configured by Contrail and all vRouters, Overlay tunnels (MPLS over GRE, MPLS over UPD or VXLAN used to Continue reading

How Long Before Burst Buffers Push Past Supercomputing?

Over the last couple of years, we have been watching how burst buffers might be deployed at some of the world’s largest supercomputer sites. For some background on how these SSD devices boost throughput on large machines and aid in both checkpoint and application acceleration, you can read here, but the real question is how these might penetrate the market outside of the leading supercomputing sites.

There is clear need for burst buffer technology in other areas where users are matching a parallel file system with SSDs. While that is still an improvement over the disk days, a lot …

How Long Before Burst Buffers Push Past Supercomputing? was written by Nicole Hemsoth at The Next Platform.

How Long Before Burst Buffers Push Past Supercomputing?

Over the last couple of years, we have been watching how burst buffers might be deployed at some of the world’s largest supercomputer sites. For some background on how these SSD devices boost throughput on large machines and aid in both checkpoint and application acceleration, you can read here, but the real question is how these might penetrate the market outside of the leading supercomputing sites.

There is clear need for burst buffer technology in other areas where users are matching a parallel file system with SSDs. While that is still an improvement over the disk days, a lot …

How Long Before Burst Buffers Push Past Supercomputing? was written by Nicole Hemsoth at The Next Platform.

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