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

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. Develop solutions that use storage tables. Develop solutions that use Cosmos DB storage.

Training 60

Training Course Linux Microsoft 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). Spend time with your family instead.

Open Source 60

Open Source Vmware Authentication Storage 60

CIO Business Intelligence

JANUARY 4, 2024

Having segmentation between infrastructure providing data processing and data storage is an example of a broad IT security architectural pattern. All other needs, for example, authentication, encryption, log management, system configuration, would be treated the same—by using the architectural patterns available.

Financial 104

Financial Architecture Resources Security 104

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

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). J Metz has launched his own, storage-focused “Short Takes” series; the first of these is found here.

Vmware 60

Vmware Authentication Virtualization Storage 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). Go check out part 2.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

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 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

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

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. Nevertheless, I hope that I managed to capture something you find useful or helpful.

Storage 60

Storage Hardware Open Source Vmware 60

Scott Lowe

SEPTEMBER 10, 2013

Gopal now takes over and moves the discussion into storage in OpenStack. With regard to block storage via Cinder, Intel has incorporated support to filter volumes based on availability zone, capabilities, capacity, and other features so that volumes are allocated more intelligently based on workload and type of service required.

Intel 60

Intel Storage Open Source Hardware 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

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. configurations. This article discusses four open source secrets management tools.

Open Source 60

Open Source Tools Policies Cloud 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

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

Linux Academy

DECEMBER 4, 2019

You will be able to create routes that map to multiple disparate backends, define & apply authentication and authorization to routes, set up rate limiting, and use custom domains to route requests to the APIs. You can now easily use Integrated Windows Authentication with your Windows containers on ECS to secure services.

Windows 12

Windows Authentication Meeting Resources 12

ForAllSecure

APRIL 22, 2021

In 2013, researcher Nitesh Dhanjani found that a popular brand used simple MD5 hashes of the device's MAC addresses for authentication. Problem is, MAC addresses are not great for authentication. So what then makes IoT hacking different from say traditional network hacking. I would think secure IoT attacks would be different.

Internet 52

Internet Research Security Tools 52

ForAllSecure

APRIL 22, 2021

In 2013, researcher Nitesh Dhanjani found that a popular brand used simple MD5 hashes of the device's MAC addresses for authentication. Problem is, MAC addresses are not great for authentication. So what then makes IoT hacking different from say traditional network hacking. I would think secure IoT attacks would be different.

Internet 52

Internet Research Security Tools 52

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. Good stuff here!

Linux 60

Linux Vmware Authentication Storage 60

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

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. Servers/Hardware.

Vmware 60

Vmware Linux Hardware Network 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

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. Who’s going to test network scanners, port scanners, and software code? You could use a Starbucks free wi-fi and virtually leave no trace behind.

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. Who’s going to test network scanners, port scanners, and software code? You could use a Starbucks free wi-fi and virtually leave no trace behind.

Open Source 52

Open Source Tools Security Software 52

Linux Academy

NOVEMBER 6, 2019

This November at Linux Academy, we have loads of new content coming your way! To all of our learners who may know someone who wants to learn more about the cloud or Linux, but they have been on the fence about signing up for a free community edition account, then tell them that right now is a great time for them to sign up!

Linux 16

Linux Systems Administration Cloud Google 16

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. Who’s going to test network scanners, port scanners, and software code? You could use a Starbucks free wi-fi and virtually leave no trace behind.

Open Source 52

Open Source Tools Security Software 52