Cisco-OpenDNS May Upset Networking Ecosystem
Cisco's acquisition of security provider OpenDNS is a symptom of the vendor's transition to services that could have wide partner and competitor repercussions.Cisco Reverses CCIE Scheduling Policy Changes
As we reported last April, Cisco changed the CCIE Lab Exam retake policy to an exponential backoff, meaning that the more attempts you took at the lab the more time you had to wait between attempts.
In a sudden change of heart, today Cisco announced that they are reversing their policy change until at least December 31st 2015. Per Cisco:
“For a limited time, we will waive the current lab retake policy so that all lab candidates will be able to retest for their lab exam with only a 30-day wait period.” “If you register for any CCIE lab exam between now and December 31, 2015, you will have the option of retaking the exam with only a 30-day wait regardless of the number of attempts you may have already made.”
Frequently Asked Questions about the policy changes:
Q: Does this mean that between now and December 31, I can take the lab every 30 days?
A: Yes.Q: Is the original policy back in place after December 31?
A: What happens after December 31 is dependent on the results of our research from now until that date.Q: What does this mean if my current Continue reading
Get Junos Running in GNS3
Greetings Everyone, Just wanted to share what I've been doing on the Junos front with a quick screenshot here: This is aMicrosoft Acquisition Rumors & Drones Vs. People
Tech media speculates on Microsoft acquiring AMD and Docker. And here's why drones and people don't always mix.
Author information
The post Microsoft Acquisition Rumors & Drones Vs. People appeared first on Packet Pushers Podcast and was written by Drew Conry-Murray.
CCIE SPv4 Advanced Technologies Class Continues Today
INE’s CCIE Service Provider v4 Advanced Technologies Class continues today at 08:00 PDT (15:00 UTC) with Inter-AS MPLS L3VPN. All Access Pass subscribers can attend at http://live.INE.com. Recordings of some of the previous class sessions up to this point are now available via AAP library here.
Additionally, INE’s CCIE SPv4 Workbook is now available in beta format here.
Hope to see you in class!
Setting Go variables from the outside
CloudFlare's DNS server, RRDNS, is written in Go and the DNS team used to generate a file called version.go in our Makefile. version.go looked something like this:
// THIS FILE IS AUTOGENERATED BY THE MAKEFILE. DO NOT EDIT.
// +build make
package version
var (
Version = "2015.6.2-6-gfd7e2d1-dev"
BuildTime = "2015-06-16-0431 UTC"
)
and was used to embed version information in RRDNS. It was built inside the Makefile using sed and git describe from a template file. It worked, but was pretty ugly.
Today we noticed that another Go team at CloudFlare, the Data team, had a much smarter way to bake version numbers into binaries using the -X linker option.
The -X Go linker option, which you can set with -ldflags, sets the value of a string variable in the Go program being linked. You use it like this: -X main.version 1.0.0.
A simple example: let's say you have this source file saved as hello.go.
package main
import "fmt"
var who = "World"
func main() {
fmt.Printf("Hello, %s.n", who)
}
Then you can use go run (or other build commands like go build or go install Continue reading
Rule 11 Redux
Is it just me, or did we used to call this a mainframe?
The post Rule 11 Redux appeared first on 'net work.
The Tinker and the Geek: Information Technology
Imagine you’ve just woken up and found yourself in a small kingdom someplace in Europe around 1200 AD. You wander outside, interested in your surroundings, and find yourself in the middle of a fair. Taking stock, you see a man standing in a tent across the way who appears to be tapping on something with a small hammer. Working your way to the tent, you find he is actually tapping out intricate patterns on a small silver disc. While you’re not certain what the disc is for, you take a moment to ask — as any geek would — “are you in the information technology business?”
The tinker, living in 1200 AD, probably doesn’t even understand the question. “What’s information technology?,” he might ask. But let’s consider the tinker’s business. What does a tinker really do?
He takes some material, combines it with technical knowhow, including the development and use of tools, to create a product he knows customers will want. He can’t just use any old tool, or any old technique — he must know something about the correct technology to apply to the problem at hand. And he can’t just hammer anything out on the little Continue reading
SDxCentral’s Top 10 SDN and NFV Articles — June 2015
DockerCon, Cisco Live, and ONS dominated June's coverage -- as did P4.
Save the Date: Designing Infrastructure for Private Clouds Workshop in Switzerland
Gabi Gerber (the wonderful mastermind behind the Data Center Day event) is helping me bring my Designing Infrastructure for Private Clouds workshop (one of the best Interop 2015 workshops) to Switzerland.
This is the only cloud design workshop I’m running in Europe in 2015. If you’d like to attend it, this is your only chance – register NOW.
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