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. Operating Systems/Applications. This article has good information on safely using /tmp and /var/tmp on systemd-powered Linux distributions.

Linux 60

Linux Dell Open Source Licensing 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. Lee Briggs covers the plethora of ways to authenticate to AWS.

Programming 96

Programming Policies Network Cloud 96

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. As always, remember that you have a range of content available here at Linux Academy if you have any gaps in prerequisite knowledge.

Training 60

Training Course Linux Microsoft 60

Scott Lowe

NOVEMBER 30, 2018

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). Operating Systems/Applications. Virtualization. Highly recommended reading. Cloud Computing/Cloud Management.

Vmware 60

Vmware Authentication Virtualization Storage 60

Scott Lowe

MARCH 2, 2020

Redpill Linpro talks to readers about their new routers running Cumulus Linux. Chip Zoller makes the argument in favor of running Kubernetes in/on virtual machines. Colleague and teammate Eric Shanks takes readers through what’s necessary to do Active Directory authentication for Kubernetes clusters. Virtualization.

Linux 60

Linux Windows Hardware Network 60

Scott Lowe

JUNE 9, 2014

Docker Hub will offer a registry for a comprehensive list of “Dockerized” applications (taking the place of the Docker Index, I assume), along with a management console, user authentication, an automated build service, the Docker Hub API, and collaboration tools to help users manage and share applications.

Virtualization 60

Virtualization Linux Applications Open Source 60

Scott Lowe

DECEMBER 27, 2019

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). Operating Systems/Applications. Virtualization.

Open Source 60

Open Source Vmware Authentication Storage 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

JUNE 18, 2021

Via Ivan Pepelnjak, I was pointed to Jon Langemak’s in-depth discussion of working with Linux VRFs. Sonia Cuff provides a set of links for detailed instructions on setting up VPN access from macOS to Microsoft Azure with Azure Active Directory authentication. Operating Systems/Applications. Virtualization.

Vmware 60

Vmware Hardware Load Balancer Apple 60

Scott Lowe

MARCH 1, 2019

VyOS is an open source Linux-based network operating system.). Part 1 covers auto-unsealing Vault ; part 2 covers authenticating to Vault using instance metadata ; and part 3 discusses authenticating to Vault using an IAM user or role. Operating Systems/Applications. Virtualization. Go check out part 2.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

Scott Lowe

JANUARY 14, 2016

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). Operating Systems/Applications. Virtualization. Have I mentioned the ESXi Virtual Appliance ?

Vmware 60

Vmware Devops Storage Linux 60

Scott Lowe

OCTOBER 5, 2012

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. I came across this post on CloudFoundry’s User Account and Authentication Service (the UAA). Operating Systems/Applications. Virtualization.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

JULY 5, 2019

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. Operating Systems/Applications. Virtualization. It provides the basics behind X.509v3

Storage 60

Storage Hardware Open Source Vmware 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. I’m pretty sure I’ve mentioned Open Virtual Network (OVN) here before, as I’m pretty jazzed about the work going on with this project.

Vmware 60

Vmware Network Virtualization IPv6 60

Scott Lowe

JANUARY 14, 2016

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). Operating Systems/Applications. Virtualization. Have I mentioned the ESXi Virtual Appliance ?

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

APRIL 19, 2019

Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host. Many organizations prefer to use two-factor authentication (2FA) to help protect their systems. ” Operating Systems/Applications. Virtualization. configurations. Servers/Hardware. Nothing this time around! Nothing this time.

Open Source 60

Open Source Tools Policies Cloud 60

ForAllSecure

DECEMBER 17, 2021

Log4j is used in many applications or is present, with dependencies in enterprise applications as well as numerous cloud services, all of which makes updating all the possible uses for it hard, even if coordinated in advance. When the task is to send data to several applications and avoid direct use of their API.

Open Source 52

Open Source Software Software Applications 52

Scott Lowe

MARCH 20, 2020

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. Chris Wahl touches on the topic of using GitHub personal tokens to authenticate to HashiCorp Vault. Operating Systems/Applications.

Linux 60

Linux Vmware Authentication Storage 60

CIO Business Intelligence

DECEMBER 7, 2023

You need to ask the important questions: How will employees and vendors access systems and applications? Lifting and shifting an enterprise application into the cloud does not guarantee the SaaS and PaaS benefits of performance, scalability, and elasticity necessary for a modern business. Cutting the cord was painful for her.

Enterprise 105

Enterprise Enterprise Disaster Recovery Authentication 105

Scott Lowe

MARCH 10, 2023

Security Jeff Warren discusses a potential way for malicious players to bypass multi-factor authentication, aka the “Pass the Cookie” attack. Diego Crespo talks about PowerShell on Linux and his experience with it. Virtualization Frank Denneman discusses simulating NUMA nodes for nested ESXi virtual appliances.

IPv6 74

IPv6 Linux Tools Network 74

ForAllSecure

MARCH 30, 2022

To access these sections of the building, there have to be doors, too, and behind these doors are the various companies, the various cloud clients with all their various virtual machines that can be spun up or spun down. This means that if you're an Azure customer, you can use CosmosDB to manage your data for applications.

Firewall 52

Firewall Virtualization Authentication Linux 52

ForAllSecure

NOVEMBER 24, 2020

And how many other serious vulnerabilities like Heartbleed are lurking unknown in the applications we use everyday, in the websites we depend on, and in the devices we carry. You could use a Starbucks free wi-fi and virtually leave no trace behind. What I want to know is how that vulnerability was able to persist for so long.

Open Source 52

Open Source Tools Security Software 52

ForAllSecure

NOVEMBER 24, 2020

And how many other serious vulnerabilities like Heartbleed are lurking unknown in the applications we use everyday, in the websites we depend on, and in the devices we carry. You could use a Starbucks free wi-fi and virtually leave no trace behind. What I want to know is how that vulnerability was able to persist for so long.

Open Source 52

Open Source Tools Security Software 52

ForAllSecure

NOVEMBER 24, 2020

And how many other serious vulnerabilities like Heartbleed are lurking unknown in the applications we use everyday, in the websites we depend on, and in the devices we carry. You could use a Starbucks free wi-fi and virtually leave no trace behind. What I want to know is how that vulnerability was able to persist for so long.

Open Source 52

Open Source Tools Security Software 52

SecureWorld News

OCTOBER 12, 2021

Mozilla moves towards multi-factor authentication. In an article reported earlier by SecureWorld News, we covered Microsoft's new "passwordless" technology , which is actually multi-factor authentication (MFA). Now, we need to incorporate something called authentication that integrates with access on the other side.

Authentication 63

Authentication Study Windows Apple 63

Dataconomy

MAY 24, 2023

It is the underlying technology behind cryptocurrencies like Bitcoin, but its applications extend beyond digital currencies. Beyond cryptocurrencies, blockchain technology has applications in various industries and use cases. At its core, a blockchain is a chain of blocks, where each block contains a set of transactions.

Network 59

Network Open Source IBM Applications 59

Scott Lowe

APRIL 21, 2016

Mike Foley recently published a two-part series on two factor authentication (2FA) for vSphere ( part 1 is here ; part 2 is here ). Operating Systems/Applications. This Yelp Engineering blog post talks about one of these unintended side effects (processes running as PID 1 are treated differently by the Linux kernel).

Vmware 60

Vmware Linux Hardware Network 60

Scott Lowe

APRIL 17, 2017

Lots of different frameworks, lots of different applications, lots of different databases…all this freedom of choice creates challenges to security. 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

So for bandwidth intensive applications, Ethernet really solves that problem. You can't run an operating system if you're running like even real time Linux, you probably couldn't do a very good job of activating the cylinders on your, on your engine controller so even an operating system, it has limitations and so why even bother.

Automotive 52

Automotive Operating Systems System Tools 52