Linux Academy

MARCH 28, 2019

Kubernetes nodes rely on underlying virtual servers for both the master control plane and for worker nodes. It is important to use security tooling such as OpenSCAP, the open source version of the Security Content Automation Protocol, to harden virtual machine images prior to their deployment in virtual private clouds.

Policies 68

Policies Linux Security Virtualization 68

Linux Academy

MAY 7, 2019

We Azure, just like Microsoft Linux! Linux Academy is the only way to get exam-like training for multiple Microsoft Azure certifications, check out this blog post if you’re wondering where to get started in Azure. You must be familiar with cloud and network fundamentals. Implement authentication. Azure Architecture.

Training 80

Training Linux Course Microsoft 80

Scott Lowe

NOVEMBER 24, 2017

In this post, I’ll show you how to use Docker Machine with KVM and Libvirt on a Linux host (I’m using Fedora 27 as an example). Once you have both the KVM/Libvirt driver and the Libvirt client tools installed, you can launch a VM: docker-machine create -d kvm --kvm-network "docker-machines" machine1.

Linux 60

Linux Engineering Vmware Network 60

Linux Academy

MAY 7, 2019

Linux Academy is the only way to get exam-like training for multiple Microsoft Azure certifications, check out this blog post if you’re wondering where to get started in Azure. You must be familiar with cloud and network fundamentals. Implement authentication. Review migration strategies for Hyper-V virtual machines.

Training 83

Training Course Linux Microsoft 83

Linux Academy

JUNE 26, 2019

Virtually every industry, from healthcare to banking and everything in between, has rules for how businesses handle data. While their requirements differ slightly—and may change annually—both PCI DSS and HIPAA require organizations to build and maintain a secure network and systems using the following security measures: System auditing.

Security 60

Security Linux Policies Meeting 60

Scott Lowe

FEBRUARY 17, 2023

Over the last few weeks, I’ve been collecting articles I wanted to share with readers on major areas in technology: networking, security, storage, virtualization, cloud computing, and OSes/applications. Denis Mulyalin shows how to use Nornir, Salt, and NetBox to template your network tests.

Programming 96

Programming Policies Network Cloud 96

Scott Lowe

NOVEMBER 30, 2018

Networking. Christian Kellner provides a brief reminder that not all USB-C ports are Thunderbolt ports, and updates everyone on the status of bolt (Linux utility for working with Thunderbolt ports and peripherals). Virtualization. Matt Oswalt shares some details on how NRE Labs implements “curriculum-as-code.”

Vmware 60

Vmware Authentication Virtualization Storage 60

Scott Lowe

JUNE 18, 2021

Networking. Via Ivan Pepelnjak, I was pointed to Jon Langemak’s in-depth discussion of working with Linux VRFs. The first is a post on Cilium and F5 load balancer integration , while the second discusses implementing Kubernetes network policies with Cilium and Linkerd. Virtualization. Servers/Hardware.

Vmware 60

Vmware Hardware Load Balancer Apple 60

Scott Lowe

DECEMBER 27, 2019

Networking. Bruce Schneier writes about how some Chinese hackers are bypassing RSA software token authentication (the title is a bit more broad, implying other forms of two-factor authentication are affected, but the article focuses on attacks against the use of RSA software tokens). Virtualization. Servers/Hardware.

Open Source 60

Open Source Vmware Authentication Storage 60

Scott Lowe

MAY 17, 2019

Networking. Courtesy of Tigera, Alex Pollitt shares some guidelines on when Linux conntrack is no longer your friend. Apparently Dell’s new docking stations support firmware updates via Linux. This article has good information on safely using /tmp and /var/tmp on systemd-powered Linux distributions. Virtualization.

Linux 60

Linux Dell Open Source Licensing 60

Linux Academy

MAY 7, 2019

Linux Academy is the only way to get exam-like training for multiple Microsoft Azure certifications, check out this blog post if you’re wondering where to get started in Azure. You must be familiar with cloud and network fundamentals. Implement authentication. Review migration strategies for Hyper-V virtual machines.

Training 60

Training Course Linux Microsoft 60

Scott Lowe

MARCH 1, 2019

Networking. Daniel Dib has a great article on how network engineers need to evolve. The network isn’t going away, it’s just changing. I referenced part 1 of Ajay Chenampara’s series on the Ansible network-engine command parser back in Technology Short Take 102 (July of last year). Virtualization.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

Scott Lowe

OCTOBER 5, 2012

Networking. I think this three-part series on new network models for cloud computing ( part 1 , part 2 , and part 3 ), while almost a year old, is quite good. Erik Smith, notably known for his outstanding posts on storage and FCoE, takes a stab at describing some of the differences between SDN and network virtualization in this post.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

JANUARY 14, 2016

Networking. Cumulus VX, if you aren’t aware, is a community-supported virtual appliance version of Cumulus Linux aimed at helping folks preview and test “full-blown” Cumulus Linux (which, of course, requires compatible hardware). Using Python and Netmiko for network automation is the topic of this post by Colin McAlister.

Vmware 60

Vmware Devops Storage Linux 60

Scott Lowe

MAY 22, 2015

Welcome to Technology Short Take #51, another collection of posts and links about key data center technologies like networking, virtualization, cloud management, and applications/operating systems. Networking. Rick Sherman has an article on using Jinja2 templates for network automation , including a practical example.

Vmware 60

Vmware Network Virtualization IPv6 60

Scott Lowe

FEBRUARY 19, 2014

Let’s start with passing some JSON data to a REST API to authenticate. Example 1: Authenticating to OpenStack. Let’s say you’re working with an OpenStack-based cloud, and you need to authenticate to OpenStack using OpenStack Identity (“Keystone”). Example 2: Authenticating to VMware NSX.

Authentication 93

Authentication Vmware Examples Applications 93

Scott Lowe

JANUARY 14, 2016

Networking. Cumulus VX, if you aren’t aware, is a community-supported virtual appliance version of Cumulus Linux aimed at helping folks preview and test “full-blown” Cumulus Linux (which, of course, requires compatible hardware). Using Python and Netmiko for network automation is the topic of this post by Colin McAlister.

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

APRIL 19, 2019

Networking. Part 2 of Stark and Wayne’s container-to-container networking for Cloud Foundry and Kubernetes dig deep into CNI workings. Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host. Virtualization. configurations. Nothing this time. Let me know on Twitter.

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

JULY 5, 2019

Networking. If you’re unfamiliar with public key infrastructure (PKI), digital certificates, or encryption, you may find this Linux Journal article helpful. Lennart Koopmann provides a guide to Yubikey authentication in the real world. Virtualization. It provides the basics behind X.509v3 Career/Soft Skills.

Storage 60

Storage Hardware Open Source Vmware 60

Scott Lowe

SEPTEMBER 10, 2013

At this point, Gopal transitions to networking in OpenStack. This discussion focuses primarily around Intel Open Network Platform (ONP). The networking discussion is very brief; perhaps because there is a dedicated session for that topic. Intel is now at 77% virtualized, with 80% of all new servers being deployed in the cloud.

Intel 60

Intel Storage Open Source Hardware 60

Scott Lowe

AUGUST 22, 2013

In this post, I’ll show you how to add hypervisors to NVP so that you can turn up your first logical network. If you are using a different Linux distribution or a different hypervisor, the commands you’ll use as well as the names of the prerequisite packages you’ll need to install will vary slightly. Assumptions.

Transportation 60

Transportation Linux Network Virtualization 60

ForAllSecure

DECEMBER 17, 2021

So Bitcoin has its own network protocol. Knudsen: What was cool was that containers are so much lighter than virtual machines. Vamosi: Virtual Machines are what just that; they’re software representations of hardware machines. I would say it's closer to the metal with a virtual machine.

Open Source 52

Open Source Software Software Applications 52

Scott Lowe

MARCH 10, 2023

Networking Kevin Jin’s post on the APNIC blog about network automation tools is a great read. He discusses Netmiko, NAPALM, and Nornir in some detail, and provides some guidance around which network automation tool may be right for you. Anton Kuliashov writes about why Palark uses Cilium for Kubernetes networking.

IPv6 74

IPv6 Linux Tools Network 74

Scott Lowe

MARCH 20, 2020

Networking. Dinesh Dutt of Cumulus Networks writes about the effect of switch port count in Clos topologies. This blending of “traditional” network engineering with containers, Linux, and DevOps tooling is how Matt is setting new trends and directions for the networking industry. Virtualization.

Linux 60

Linux Vmware Authentication Storage 60

ForAllSecure

MARCH 30, 2022

So I started intercepting all the traffic on your network. Elliot Alderson: You are using Tor networking to keep the server's anonymous. Fast, GB wifi leads Elliot to discover a TOR network which leads him to the onion routing protocol. Part that doesn't allow good to exist without condition. Then I decided to hack you.

Firewall 52

Firewall Virtualization Authentication Linux 52

CIO Business Intelligence

DECEMBER 7, 2023

Throwing more money at network-centric security is not the answer. This also holds for PAM vendors shoehorning a decade-old PAM product into virtual machines in the cloud. Building authentication services and MFA into the PAM platform (see above) enables rapid innovation and support for newer standards such as Passkeys.

Enterprise 103

Enterprise Enterprise Disaster Recovery Authentication 103

Dataconomy

MAY 24, 2023

Instead of relying on a central authority, the blockchain is maintained by a network of participants, known as nodes, who collectively validate and verify transactions. Different blockchain networks may use various consensus algorithms such as proof-of-work (PoW), proof-of-stake (PoS), or other innovative protocols to achieve consensus.

Network 59

Network Open Source IBM Applications 59

Scott Lowe

APRIL 21, 2016

Networking. Michael Ryom has a nice (but short) article on using Log Insight along with a NetFlow proxy to help provide more detailed visibility into traffic flows between VMs on NSX logical networks. BGP seems to be emerging as an early front-runner for a standards-based control plane for software networking. Virtualization.

Vmware 60

Vmware Linux Hardware Network 60

ForAllSecure

NOVEMBER 24, 2020

And if you could initiate a heartbeat before authentication was complete on the site, you could smash and grab the encrypted information before anyone even knew who you were. You could use a Starbucks free wi-fi and virtually leave no trace behind. Who’s going to test network scanners, port scanners, and software code?

Open Source 52

Open Source Tools Security Software 52

ForAllSecure

NOVEMBER 24, 2020

And if you could initiate a heartbeat before authentication was complete on the site, you could smash and grab the encrypted information before anyone even knew who you were. You could use a Starbucks free wi-fi and virtually leave no trace behind. Who’s going to test network scanners, port scanners, and software code?

Open Source 52

Open Source Tools Security Software 52

ForAllSecure

NOVEMBER 24, 2020

And if you could initiate a heartbeat before authentication was complete on the site, you could smash and grab the encrypted information before anyone even knew who you were. You could use a Starbucks free wi-fi and virtually leave no trace behind. Who’s going to test network scanners, port scanners, and software code?

Open Source 52

Open Source Tools Security Software 52

Scott Lowe

JUNE 8, 2018

Since that time, I’ve incorporated Linux ( Fedora , specifically) into my computing landscape, and I started using the Libvirt provider for Vagrant (see my write-up here ). each do |net| section works for the local virtualization providers (VirtualBox, VMware, and Libvirt), but is silently ignored for AWS. The machine[nics].each

.Net 60

.Net Vmware Authentication Exercises 60

Scott Lowe

APRIL 17, 2017

SwarmKit also offers encrypted networks (I was not aware of this functionality), and secure secret distribution in a platform-agnostic, least-privilege way. This led Docker to work with a number of other companies to build a secure, lean, portable Linux subsystem. LinuxKit is a lean, portable, and secure Linux subsystem.

Linux 60

Linux Open Source Windows Security 60

ForAllSecure

AUGUST 10, 2021

A CANBus is a Controller Area Network, and essentially links controllers which are ostensibly computers that are in the vehicle to each other so they can all talk at the same time. Vamosi: Ethernet is a wired network. The Secure Gateway requires registration and authentication through an approved device for aftermarket use.

Automotive 52

Automotive Operating Systems System Tools 52