Two-Factor Cybersecurity Training
If your end users still write down their passwords on sticky notes, perhaps it's time they got help.
Scaling L3-Only Data Center Networks
Andrew wondered how one could scale the L3-only data center networking approach I outlined in this blog post and asked:
When dealing with guests on each host, if each host injects a /32 for each guest, by the time the routes are on the spine, you're potentially well past the 128k route limit. Can you elaborate on how this can scale beyond 128k routes?
Short answer: it won’t.
Read more ...Cisco DevNet Scavenger Hunt at GSX 17
At Cisco's GSX conference at the start of FY17, the DevNet team made a programming scavenger hunt by posting daily challenges that required using things like containers, Cisco Shipped, Python, and RESTful APIs in Cisco software in order to solve puzzles. In order to submit an answer, the team created an API that contestants had to use (in effect creating another challenge that contestants had to solve).
This post contains the artifacts I created while solving some of the challenges.
VMworld 2016 Day 1 Keynote
This is a liveblog of the day 1 keynote at VMworld 2016 in Las Vegas, NV. I managed to snag a somewhat decent seat in the massive bloggers/press/analysts area, though it filled up really quickly. Based on the announcements made this morning, it should be a great general session, and I’m really interested to see how its received by the community.
The keynote starts with a high-energy percussion/DJ session, followed by a talk about tomorrow—from where tomorrow will emerge, what tomorrow will look like, and what tomorrow will care about. Don’t stand in line for tomorrow; you are tomorrow, because tomorrow is about people. Which way will you face? What will you do to bring about tomorrow? All of this lines up, naturally, with VMworld’s “be_Tomorrow” theme.
After that talk Pat Gelsinger, CEO of VMware, takes the stage. He talks briefly about his foot injury, then thanks the 21 “Alumni Elite” who have attended every single VMworld. Gelsinger then moves into a discussion of buzzwords and “digital transformation,” claiming that all businesses are digital businesses, and therefore all businesses need to worry about the challenges that face digital businesses. Gelsinger talks about a couple companies that have Continue reading
Connecting Python To Slack For Testing And Development
The scripting language Python can retrieve information from or publish information into the messaging app Slack. This means you can write a program that puts info into Slack for you, or accepts your queries using Slack as the interface. This is useful if you spend a lot of time in Slack, as I do.
The hard work of integrating Slack and Python has been done already. Slack offers an API, and there are at least two open source Python libraries that make leveraging these APIs in your Python code a simple task. I chose slacker after a bit of googling, but it’s not a preference borne of experience. The community seems to be behind slacker as opposed to Slack’s own python-slackclient, so I went that direction.
Steps
- I’ll assume you’ve got Python installed already. My environment is Ubuntu Server 16.04 with Python 2.7.12.
- Install the python package manger pip, if you don’t already have it.
sudo apt install python-pip - Install the slacker python library.
pip install slacker - Generate a testing and dev token at the Slack API web site.
https://api.slack.com/web
- The token will be everything required for authentication to your Slack group. Protect it Continue reading
Unregenerate 20160827 – The Week Gone By or To Come
Looking backward at last week or forward into next week. unregenerate – adj. not reformed, unreconstructed, obstinate, stubborn —- Current Status Arrived in Las Vegas VMworld early for Vmworld as press/media. I’m presenting on the big stage at Future:Net – an [invitation only conference on the future of networking – on Thursday Morning “Breakfast With […]
The post Unregenerate 20160827 – The Week Gone By or To Come appeared first on EtherealMind.
mVPN Fun in the Lab: Following the Labels – Part 3 of 6
In our last blog (MPLS Fun in the Lab: Connect a Customer – Part 2) we added a customer to our MPLS cloud and we got a ping successfully across. Now? Now we Follow the Labels of that successful ping.... Read More ›
The post mVPN Fun in the Lab: Following the Labels – Part 3 of 6 appeared first on Networking with FISH.
Notes on that StJude/MuddyWatters/MedSec thing
I thought I'd write up some notes on the StJude/MedSec/MuddyWaters affair. Some references: [1] [2] [3] [4].The story so far
tl;dr: hackers drop 0day on medical device company hoping to profit by shorting their stock
MedSec is a bunch of cybersecurity researchers (white-hat hackers) who have been investigating medical devices. In theory, their primary business is to sell their services to medical device companies, to help companies secure their devices. Their CEO is Justine Bone, a long-time white-hat hacker. Despite Muddy Waters garbling the research, there's no reason to doubt that there's quality research underlying all this.
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