Cloud Security Fears Evolve
Organizations today are focused on protecting applications they deploy in the public cloud.
Network Automation Is Much More than Configuration Management
Most network automation presentations you can find on the Internet focus on configuration management, either to provision new boxes, or to provision new services, so it’s easy to assume that network automation is really a fancy new term for consistent device configuration management.
However, as I explained in the Network Automation 101 webinar, there’s so much more you can do and today I’d like to share a real-life example from Jaakko Rautanen, an alumni of my Building Network Automation Solutions online course.
Read more ...ARIN 39 Report
Having just spent two and a half days at an ARIN Public Policy Meeting, I’d like to share some of my impressions of the meeting, and the state of address policy in the region served by ARIN.Encryption is critical for business communication
Imagine if all your business contracts were sent to customers written on postcards. Everyone who happened to see the postcard could see exactly what you were going to charge the customer, how many of your product the customer is going to order - and all of the information about the customer.
Your competition, naturally, could take that information and send a contract to that customer of yours that undercuts your proposal and offers better terms. They could also share that information with others to let them know that this customer buys from you. (Or, at least, they used to!) Your customer, too, could potentially see what you are charging other customers.
Now... STOP imagining - THIS IS HOW THE INTERNET WORKS TODAY!
Dan York
Your Cheese Moved a Long Time Ago
I was recently on a panel at the Event-Driven Automation Meetup at LinkedIn in Sunnyvale, CA, and we all had a really good hour-long conversation about automation. What really made me happy was that nearly the entire conversation focused on bringing the same principles that companies like LinkedIn and Facebook use on their network to smaller organizations, making them practical for more widespread use.
Nina Mushiana of @LinkedIn says "Anything that can be documented should be automated".
— StackStorm (@Stack_Storm) March 31, 2017
Great Auto-Remediation Meetup! pic.twitter.com/l76U1IydjB
One particular topic that came up was one I’ve struggled with for the past few years; What about Day 2 of network automation? So, we manage to write some Ansible playbooks to push configuration files to switches - what’s next? Often this question isn’t asked. I think the network automation conversation has progressed to the point where we should all start asking this question more often.
I believe that the network engineering discipline is at a crossroads, and the workforce as a whole needs to make some changes and decisions in order to stay relevant. Those changes are all based on the following premise:
The value of the network does not Continue reading
Your Cheese Moved a Long Time Ago
I was recently on a panel at the Event-Driven Automation Meetup at LinkedIn in Sunnyvale, CA, and we all had a really good hour-long conversation about automation. What really made me happy was that nearly the entire conversation focused on bringing the same principles that companies like LinkedIn and Facebook use on their network to smaller organizations, making them practical for more widespread use.
Nina Mushiana of @LinkedIn says "Anything that can be documented should be automated".
— StackStorm (@Stack_Storm) March 31, 2017
Great Auto-Remediation Meetup! pic.twitter.com/l76U1IydjB
One particular topic that came up was one I’ve struggled with for the past few years; What about Day 2 of network automation? So, we manage to write some Ansible playbooks to push configuration files to switches - what’s next? Often this question isn’t asked. I think the network automation conversation has progressed to the point where we should all start asking this question more often.
I believe that the network engineering discipline is at a crossroads, and the workforce as a whole needs to make some changes and decisions in order to stay relevant. Those changes are all based on the following premise:
The value of the network does not Continue reading
Your Cheese Moved a Long Time Ago
I was recently on a panel at the Event-Driven Automation Meetup at LinkedIn in Sunnyvale, CA, and we all had a really good hour-long conversation about automation. What really made me happy was that nearly the entire conversation focused on bringing the same principles that companies like LinkedIn and Facebook use on their network to smaller organizations, making them practical for more widespread use. Nina Mushiana of @LinkedIn says "Anything that can be documented should be automated".Your Cheese Moved a Long Time Ago
I was recently on a panel at the Event-Driven Automation Meetup at LinkedIn in Sunnyvale, CA, and we all had a really good hour-long conversation about automation. What really made me happy was that nearly the entire conversation focused on bringing the same principles that companies like LinkedIn and Facebook use on their network to smaller organizations, making them practical for more widespread use. Nina Mushiana of @LinkedIn says "Anything that can be documented should be automated".Decoding FSK
Something I’ve been playing with lately is software defined radio with GNURadio. I’m not good at it yet, but I’ve managed to decode the signals from a couple of things.
This is my step-by-step for how I decoded data from a boiler thermostat. I’m not saying it’s the best way, or even a good way. But it’s what got me there.
0. Find the frequency
Often this is written on the device itself. Other times it’s in the manual. If not, then more research is needed, such as by trying to find the manufacturer on fcc.gov or similar.
In this case it was easy. The manual said “868 MHz”, which is in the SRD860 band.
1. Capture some data
When I poked at the controls of the thermostat, saying “please make the room 25 degrees”, the thermostat must send this data to the boiler. I could hear the boiler start up and shut down, so there must be something sent between me pressing the buttons and I heard the results.
I started by centering around 868.5 Mhz with 1Msps. The minimum for the RTL-SDR is 900ksps, so even if you wanted to see less than 1MHz you need Continue reading