Risky Business #394 — Matthew Green talks “crypto bans”
On this week's show we're chatting with Johns Hopkins University cryptographer Matthew Green about rumblings emanating out of DC with regard to "stopping encryption", whatever the hell that means.
In this week's sponsor interview we're chatting with Oliver Fay from Context about a paper they did in conjunction with UK's CERT about exploit kits. How much do they cost? Are there any that stick out as being particularly good? Or bad, depending on your point of view...
Links to everything are in this week's show notes.
Modifying OpenStack Security Groups with Terraform
In this post I’d like to discuss a potential (minor) issue with modifying OpenStack security groups with Terraform. I call this a “potential minor” issue because there is an easy workaround, which I’ll detail in this post. I wanted to bring it to my readers’ attention, though, because as of this blog post this matter had not yet been documented.
As you probably already know if you read my recent introduction to Terraform blog post, Terraform is a way to create configurations that automate the creation or configuration of infrastructure components, possibly across a number of different providers and/or platforms. In the introductory blog post, I showed you how to write a Terraform configuration that would create an OpenStack logical network and subnet, create a logical router and attach it to the logical network, and then create an OpenStack instance and associate a floating IP. In that example, I used a key part of Terraform, known as interpolation.
Broadly speaking, interpolation allows Terraform to reference variables or attributes of other objects created by Terraform. For example, how does one refer to a network that he or she has just created? Here’s an example taken from the introductory blog post:
Quick tips and reference on tcpdump tool
Linux bridges are powerful virtual switches that come with the networking stack of core Linux. Bridging is loaded as part of the bridge kernel module. Linux bridges amongst others have made it possible to network virtual machines and containers on a KVM based linux node.
Very so often I have had to go in and figure out where the packets either egressing the VM or ingress traffic to the VM magically vanishes and tcpdump has been one of the most valuable tools for me. Debugging in the networking world pretty much has a standard algorithm to it: Start from the source and check for packets along the route to the destination at every hop. Once you figure out where the packet disappears, where the black hole is, it is half the problem solved.
To do exactly this we have a variety of debugging tools ranging from Wireshark that captures packets to tcpdump and sniffers. All of these have one thing in common - they are user processes that hook onto specific kernel parameters to capture the packets. For example, although you do not explicitly set an interface in promiscuous mode this interface is moved to promiscuous mode when the packet Continue reading
Dell May Buy Back $3B in VMware Tracking Stock
Dell is also reportedly looking at selling Perot Technology, too.
QoS Done Right
Sonus VellOS controls the network based on dynamic unified communications requirements. Network resources are automatically allocated to satisfy UC demands, turning QoS into Quality of Experience.
The post QoS Done Right appeared first on Packet Pushers.
QoS Done Right
Sonus VellOS controls the network based on dynamic unified communications requirements. Network resources are automatically allocated to satisfy UC demands, turning QoS into Quality of Experience.
The post QoS Done Right appeared first on Packet Pushers.
Running devstack older than Kilo release
| The famous network topology diagram as seen in Juno - Openstack (My preference over the one in Kilo/Liberty) |
Juno and older code is now represented as tags and may or may not be supported by the individual project teams. However thanks to subversioning and git, you can check out code of juno or older releases by using tags now.
#git tag -l --> Lists the tags present in the repository.
#git checkout tags/ -b --> Checkout code from a tag.
All stable older releases have now been named following the convention "
NTT May Be Last to Visualize Its Infrastructure Layer
This sounds very similar to Sedona Systems' work with 95% of networks.
Network Break 66: SD-WAN Deals, IoT Lights Up
Network Break 66 looks at a pair of SD-WAN deals, examines IoT news from Cisco and HPE, reviews switch and router sales, and considers the impact of China's chip ambitions.
The post Network Break 66: SD-WAN Deals, IoT Lights Up appeared first on Packet Pushers.
Network Break 66: SD-WAN Deals, IoT Lights Up
Network Break 66 looks at a pair of SD-WAN deals, examines IoT news from Cisco and HPE, reviews switch and router sales, and considers the impact of China's chip ambitions.
The post Network Break 66: SD-WAN Deals, IoT Lights Up appeared first on Packet Pushers.
Docker Webinar Q&A: Persistent Storage & Docker
When it comes to Docker containers, storage has been a popular topic, especially around persistent storage and data volumes. Last week, we hosted a webinar with Mike Coleman, Technical Marketing Engineer at Docker, Inc. In this webinar, Mike completed the … ContinuedResponse: Adobe Profits Show Cloud is Expensive For Consumers
Adobe reports massive increase in revenue and profits on the back of moving to the cloud. First, let’s have a look at the numbers. Adobe reported a record $1.31 billion in revenue for the quarter, a 22 percent year over year increase. It disclosed record annual revenue of $4.8 billion. Mind you these are significant, but the big number to […]
The post Response: Adobe Profits Show Cloud is Expensive For Consumers appeared first on EtherealMind.