Vodafone Germany Shares NFV Lessons From the Early Days
The early wave of 'monster VMs' didn't work out.
Symantec Files Patent Infringement Suit Against Zscaler
Symantec says that Zscaler products infringe on seven of Symantec’s patents across its network security technologies.
IPv6, DHCP, and Unintended Consequences
I ran into an interesting paper on the wide variety of options for assigning addresses, and providing DNS information, in IPv6, over at ERNW. As always, with this sort of thing, it started me thinking about the power of unintended consequences, particularly in the world of standardization. The authors of this paper noticed there are a lot of different options available in the realm of assigning addresses, and providing DNS information, through IPv6.
Alongside these various options, there are a number of different flags that are supposed to tell the host which of these options should, and which shouldn’t, be used, prioritized, etc. The problem is, of course, that many of these flags, and many of the options, are, well, optional, which means they may or may not be implemented across different versions of code and vendor products. Hence, combining various flags with various bits of information can have a seemingly random impact on the IPv6 addresses and DNS information different hosts actually use. Perhaps the most illustrative chart is this one—
Each operating system tested seems to act somewhat differently when presented with all possible flags, and all possible sources of information. As the paper notes, this can cause Continue reading
Silicon Valley Elite to Meet With Trump on Jobs, Tech Policy
A likely topic of discussion will be the repatriation of offshore cash.
Fujitsu Operates an SDN/NFV Consulting & Integration Practice
It does everything from soup to nuts to help companies use NFV.
A Scalable Alternative to RESTful Communication: Mimicking Google’s Search Autocomplete with a Single MigratoryData Server
This is a guest post by Mihai Rotaru, CTO of MigratoryData.
Using the RESTful HTTP request-response approach can become very inefficient for websites requiring real-time communication. We propose a new approach and exemplify it with a well-known feature that requires real-time communication, and which is included by most websites: search box autocomplete.
Google, which is one of the most demanding web search environments, seems to handle about 40,000 searches per second according to an estimation made by Internet Live Stats. Supposing that for each search, a number of 6 autocomplete requests are made, we show that MigratoryData can handle this load using a single 1U server.
More precisely, we show that a single MigratoryData server running on a 1U machine can handle 240,000 autocomplete requests per second from 1 million concurrent users with a mean round-trip latency of 11.82 milliseconds.
The Current Approach and Its Limitations
Worth Reading: W3C at the crossroads
The post Worth Reading: W3C at the crossroads appeared first on 'net work.
How to Hack an Election
Now that the election is behind us, the discussion has turned to potential involvement by foreign governments and whether they had their hand in altering the course of US democracy by tampering with the integrity of our election systems. The CIA has all but admitted that there was definite Russian interference aimed at tilting our election. The Green … Continue reading How to Hack an ElectionConvert ASP.NET Web Servers to Docker with Image2Docker
A major update to Image2Docker was released last week, which adds ASP.NET support to the tool. Now you can take a virtualized web server in Hyper-V and extract a Docker image for each website in the VM – including ASP.NET WebForms, MVC and WebApi apps.
Image2Docker is a PowerShell module which extracts applications from a Windows Virtual Machine image into a Dockerfile. You can use it as a first pass to take workloads from existing servers and move them to Docker containers on Windows.
The tool was first released in September 2016, and we’ve had some great work on it from PowerShell gurus like Docker Captain Trevor Sullivan and Microsoft MVP Ryan Yates. The latest version has enhanced functionality for inspecting IIS – you can now extract ASP.NET websites straight into Dockerfiles.
In Brief
If you have a Virtual Machine disk image (VHD, VHDX or WIM), you can extract all the IIS websites from it by installing Image2Docker and running ConvertTo-Dockerfile like this:
Install-Module Image2Docker Import-Module Image2Docker ConvertTo-Dockerfile -ImagePath C:\win-2016-iis.vhd -Artifact IIS -OutputPath c:\i2d2\iis
That will produce a Dockerfile which you can build into a Windows container image, using docker build.
How It Works
The Image2Docker Continue reading
NFV Will Drive Enterprise SDN Adoption
While software-defined networking (SDN) and network function virtualization (NFV) don’t necessarily require each other to add value to an enterprise, they are collectively being joined at the proverbial hip.