Linux Academy

JUNE 10, 2019

All are handled safely inside the Linux Academy platform. . Simply put, d atabases store a variety of data such as usernames, email addresses, encrypted passwords, and virtually any other type of data that you can imagine. Database management systems are software that handle the storage, retrieval, and updating of data.

Linux 76

Linux SOA Course Examples 76

Scott Lowe

OCTOBER 8, 2021

Kurt Roekle takes a second look at combining Open Policy Agent with Kong Mesh , looking at the potential benefits offered by including Styra Declarative Authorization Service (DAS). Nice to see that work on getting Linux up and running and fully functional on Apple’s proprietary M1 chips is progressing well. Virtualization.

IPv6 60

IPv6 Storage Hardware Vmware 60

Scott Lowe

AUGUST 27, 2021

I have a fairly diverse set of links for readers this time around, covering topics from microchips to improving your writing, with stops along the way in topics like Kubernetes, virtualization, Linux, and the popular JSON-parsing tool jq along the way. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux.

Linux 60

Linux Load Balancer Malware Virtualization 60

Scott Lowe

OCTOBER 31, 2012

Open vSwitch (OVS) is a core component in a number of prominent virtualization- and cloud-related products and projects (consider that OpenStack Quantum, CloudStack, XenServer, and Nicira NVP all leverage OVS). Enable IP routing in the Linux kernel. Wrapping libvirt Virtual Networks Around Open vSwitch Fake Bridges.

Linux 123

Linux Virtualization Network Examples 123

CIO Business Intelligence

DECEMBER 22, 2023

Whether that means implementing cloud-based policies, deploying patches and updates, or analyzing network performance, these IT pros are skilled at navigating virtualized environments. Cloud systems administrator Cloud systems administrators are charged with overseeing the general maintenance and management of cloud infrastructure.

Cloud 130

Cloud Company Devops Disaster Recovery 130

Scott Lowe

FEBRUARY 16, 2017

The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. I use OTR with Adium on OS X, and OTR with Pidgin on my Fedora Linux laptop.). Virtualization. Networking.

Vmware 60

Vmware Linux Storage Load Balancer 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. This post on Cedar—a new policy language developed by AWS—is an interesting read.

Programming 96

Programming Policies Network Cloud 96

Scott Lowe

MAY 7, 2021

In this Technology Short Take, I’ve gathered some links for you covering topics like Azure and AWS networking, moving from macOS to Linux (and back again), and more. Stefan Büringer talks about optimizing Open Policy Agent (OPA)-based Kubernetes authorization. Virtualization. Let’s jump right into the content!

Linux 60

Linux Hardware Network Cloud 60

Scott Lowe

FEBRUARY 28, 2022

Rory McCune writes about a CVE in the Linux kernel that could allow for container escape in Kubernetes. Anders Eknert shows how to do—or at least provides a framework on getting started with—dynamic policy composition with Open Policy Agent (OPA) in this blog post from April 2021. Virtualization. Yes, please.

Storage 79

Storage Hardware Policies Open Source 79

Scott Lowe

MARCH 12, 2021

I didn’t do so well on storage links; apologies to my storage-focused friends! Isovalent, the folks behind Cilium, recently unveiled the Network Policy Editor, a graphical way of editing Kubernetes Network Policies. Virtualization. Via TecMint, James Kiarie explains how to use VirtualBox VMs on KVM in Linux.

IPv6 60

IPv6 Network Storage Policies 60

Scott Lowe

MAY 17, 2019

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. I’m thankful that Bill Demirkapi followed a responsible disclosure policy. Virtualization. Networking. Servers/Hardware.

Linux 60

Linux Dell Open Source Licensing 60

Scott Lowe

AUGUST 5, 2014

You may also be aware that I am involved with a project called Congress, which aims to bring an overarching policy service to OpenStack. Here are some sessions pertaining to Congress: Congress: Policy as a Service. Policy and Security in the “Goldilocks” Zone. Virtualization Congress 2009 Sessions.

Vmware 60

Vmware Virtualization Policies Linux 60

Scott Lowe

MAY 29, 2020

Jason Price shares a fully fleshed-out example of Kubernetes Pod Security Policies. Virtualization. For those new to Linux virtualization—or even if you’ve been around Linux virtualization for a while—this article explaining how Intel VT-x, QEMU, and KVM work together is full of good information.

Linux 60

Linux Virtualization Security Backup 60

Linux Academy

OCTOBER 2, 2019

Hi, I’m Anna, COO of Linux Academy. Anthony is out on some much-needed vacation, but that’s not going to stop us from updating you on everything new in this Linux Academy Monthly Update. Here are some of the most recent quizzes you can use to check out the updates: Virtual Private Cloud (VPC) AWS . CompTIA Linux Plus XK0-004.

Linux 13

Linux Disaster Recovery Course Firewall 13

Linux Academy

AUGUST 29, 2019

To continually support you in your mission to learn and grow we are always adding new courses and free resources to begin developing your Linux and Cloud skills. Courses Free in September: Microsoft SQL Server On Linux Quick Start. Linux Networking and Trouble Shooting. Git Quick Start.

Linux 18

Linux Course Devops Big Data 18

Scott Lowe

JUNE 2, 2016

Dmitri Kalintsev examines some options for addressing storage-related connectivity in NSX environments. The first article provides a blueprint for migrating applications to VMware NSX ; the second article supplies some tips for creating filtering policies in VMware NSX. Virtualization. Servers/Hardware.

Vmware 60

Vmware Virtualization Linux Windows 60

Scott Lowe

AUGUST 8, 2014

Welcome to Technology Short Take #43, another episode in my irregularly-published series of articles, links, and thoughts from around the web, focusing on data center technologies like networking, virtualization, storage, and cloud computing. Virtualization. Here’s hoping you find something useful. Networking.

Vmware 60

Vmware Linux Virtualization Network 60

Scott Lowe

SEPTEMBER 22, 2017

Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). and their product (VirTool Network Analyzer) is aimed at providing some operational visibility into OpenStack virtual networks. Here’s hoping you find something useful! Networking.

Storage 60

Storage Vmware Load Balancer Network 60

Scott Lowe

DECEMBER 29, 2016

Andrey Khomyakov shares some information on automating the setup of whitebox switches running Cumulus Linux in part 2 of this series on learning network automation. Alpine Linux 3.5 This is notable (for me, at least) primarily because a growing number of Docker images are based on Alpine Linux. Virtualization. Neat trick!

Vmware 60

Vmware Linux Open Source Data Center 60

Scott Lowe

DECEMBER 6, 2019

In perusing some of Brian’s content, I see lots of stuff at the intersection of networking and virtualization. The one caveat to his approach that may be worth mentioning is that some policies (a PodSecurityPolicy or the use of Open Policy Agent) may prevent the user from launching a Pod connected to the host’s network namespace.

Vmware 60

Vmware Network Linux Hardware 60

Scott Lowe

SEPTEMBER 10, 2013

This builds on TCP to enforce policies about where instances are allowed to run. Gopal now takes over and moves the discussion into storage in OpenStack. By granting greater intelligence to how volumes are allocated, cloud service providers can offer differentiated (read: premium priced) services for block storage.

Intel 60

Intel Storage Open Source Hardware 60

Scott Lowe

MAY 4, 2017

If you’re trying to wrap your head around AWS IAM policies, I have yet to find a resource I can recommend more strongly than this article on AWS IAM policies in a nutshell. I strongly recommend using this article to help further your understanding of AWS IAM policies. Virtualization. Check out this post by Alan Renouf.

Vmware 60

Vmware Storage Network Examples 60

Scott Lowe

SEPTEMBER 3, 2014

SDN Central has a nice write-up on the need for open efforts in the policy space, which includes the Congress project. Virtualization. Running Hyper-V with Linux VMs? Ben Armstrong details what versions of Linux support the various Hyper-V features in this post. Cloud Computing/Cloud Management. LTS server.

Linux 60

Linux Network Vmware Disaster Recovery 60

Scott Lowe

OCTOBER 5, 2018

Cory O’Daniel explains how to use role-based access control to assign Pod Security Policies (PSPs) to Kubernetes workloads. It might be worth watching as eBPF grows in importance in the Linux community, though. Matthew Green rants on Chrome’s new forced login policy. Virtualization. That’s a neat trick.

Hardware 60

Hardware Open Source Vmware Linux 60

Scott Lowe

JANUARY 6, 2018

Christian Kellner talks about work done on Thunderbolt 3 security levels for GNU/Linux. Tim Hinrichs provides some details on Rego , the policy language behind the Open Policy Agent project. Tony Bourke has a two-part series on ZFS and Linux and encryption ( part 1 , part 2 ). Virtualization. Servers/Hardware.

Linux 60

Linux Vmware Comparison Network 60

Scott Lowe

APRIL 19, 2019

Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host. Tim Hinrichs discusses securing the Kubernetes API with Open Policy Agent. Pod Security Policies (PSPs) are an important security feature in Kubernetes. Virtualization. Servers/Hardware. Nothing this time around! Nothing this time.

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

FEBRUARY 1, 2019

Panagiotis Georgiadis explains how to enable PSP (Pod Security Policies) with Traefik. Jorge Castro shares some informal notes on using Clear Linux as an everyday DevOps/cloud-native/Kubernetes client. Virtualization. Operating Systems/Applications. There’s some handy tips/ideas in here.

Network 60

Network Resources Devops Vmware 60

Scott Lowe

NOVEMBER 22, 2013

What this creates is a virtual topology like this: What you’ll find when you try this yourself is that everything works fine when there are just two hosts; this is what I also found when I first wrote the article. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies.

Virtualization 61

Virtualization Linux Network Storage 61

Scott Lowe

MARCH 30, 2018

Sean Howard talks about using the NSX Service Compose to create a more elegant ruleset for enforcing security policy. Hmmm…maybe I could install Windows 10 on my quad-proc Mac Pro, then run macOS virtualized on it…that might be something to try one day (as if I’ll ever have time for that!). Virtualization.

Linux 60

Linux Vmware Windows Applications 60

Virtualized Greek

AUGUST 27, 2013

Scott: Responded by basically saying the political issues will not disappear and the network team has to be involved in the creation of policy for the virtual network. Question: How does Site Recovery Manager (SRM) play with Virtual SAN (vSAN). The virtualization admin will evolve to the Cloud Admin.

Vmware 68

Vmware Virtualization Network VOIP 68

Scott Lowe

MARCH 1, 2019

VyOS is an open source Linux-based network operating system.). Stefan Büringer writes about how you can implement “advanced” RBAC functionality in Kubernetes using Open Policy Agent (OPA). Virtualization. I’m not sure how I missed that part 2 was published only 2 days later, so I’m rectifying that now.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

Scott Lowe

SEPTEMBER 13, 2012

Using Intel technologies like TXT (Trusted Execution Technology) along with a policy engine and related components such as TPM, providers can build “trusted compute pools” to help solve security-related issues in a cloud OE. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies.

Cloud 109

Cloud Intel Open Source Data Center 109

Scott Lowe

SEPTEMBER 5, 2013

Jeda Networks describes themselves as a “software-defined storage networking” company. Given my previous role at EMC (involved in storage) and my current role at VMware focused on network virtualization (which encompasses SDN), I was quite curious. This gives them very fine-grained control over data access.

Meeting 63

Meeting Storage Hardware Network 63

Scott Lowe

DECEMBER 2, 2013

This post, by the way, was sparked in part by a comment on my article on using GRE tunnels with OVS , in which the reader asked: “Is there a way to configure bare Linux (Ubuntu)…with OVS installed…to serve as a tunnel endpoint…?” See my introductory post on Linux policy routing if you need more information.

Transportation 71

Transportation Linux Network Virtualization 71

Scott Lowe

MARCH 10, 2015

I highly recommend you read the entire post, but in short the five skills Matt recommends are software skills (which includes configuration management and software development tools like Git ), Linux, deep protocol knowledge, hypervisor and container networking, and IPv6. NixOS seems to be an interesting re-think of a Linux distribution.

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

SEPTEMBER 4, 2013

In this post, I’m going to introduce you to the concept of Linux network namespaces. Generally speaking, an installation of Linux shares a single set of network interfaces and routing table entries. If you’re thinking about using network namespaces, be sure your Linux distribution includes support.

Linux 111

Linux Network Examples Policies 111

Scott Lowe

MAY 30, 2013

In an earlier post, I provided an introduction to policy routing as implemented in recent versions of Ubuntu Linux (and possibly other distributions as well), and I promised that in a future post I would provide a practical application of its usage. This is why you would use policy routing in this configuration.

Policies 102

Policies Linux Virtualization Network 102