Scott Lowe

APRIL 15, 2022

Servers/Hardware. Cabling is hardware, right? Although Linux is often considered to be superior to Windows and macOS with regard to security, it is not without its own security flaws. Although Linux is often considered to be superior to Windows and macOS with regard to security, it is not without its own security flaws.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

MARCH 10, 2023

Servers/Hardware Kevin Houston provides some instructions on backing up the Dell PowerEdge MX7000 settings and configurations. Alberto Pellitteri with Sysdig discusses SCARLETEEL , an operation conducted by an attacker that leveraged many of the tools found in modern cloud environments: Kubernetes, Terraform, and AWS.

IPv6 74

IPv6 Linux Tools Network 74

Scott Lowe

MAY 27, 2022

Servers/Hardware. Cloud Computing/Cloud Management. Here’s a user’s perspective on using infracost to bring cloud spend into your Terraform worfklows. The state of virtualization on Apple Silicon hardware has seen a few developments in recent days and weeks. network virtualization). Kubernetes 1.24

Virtualization 79

Virtualization Storage Programming Network 79

Scott Lowe

MARCH 17, 2016

At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. If you’d like to see the presentation, it’s available on Slideshare and Speakerdeck. If you’d like to re-create the demo environment, check out the presentation’s GitHub repository. Servers/Hardware.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

NOVEMBER 5, 2017

Michels starts with a brief overview of his background, then proceeds to position today’s talk as a follow-up (of sorts) to a presentation he did in Boston. Michels discusses that there are typically two approaches to DIY OpenStack: The “Donald” approach leverages whatever around, including older hardware.

Hardware 60

Hardware Operating Systems Linux Network 60

Scott Lowe

MAY 29, 2020

Banzai Cloud’s Toader Sebastian explains how to write WASM (WebAssembly) filters for Envoy and deploy those filters with Istio. Servers/Hardware. Cloud Computing/Cloud Management. tackles the question of whether an API gateway is needed if a service mesh is present. Welcome to Technology Short Take #127!

Linux 60

Linux Virtualization Security Backup 60

Scott Lowe

JUNE 4, 2013

First up, Jason goes off on a rant about network virtualization , briefly hitting topics like the relationship between overlays and hardware, the role of hardware in network virtualization, the changing roles of data center professionals, and whether overlays are the next logical step in the evolution of the network. Servers/Hardware.

HP 106

HP Virtualization Hardware Network 106

Scott Lowe

DECEMBER 27, 2019

Servers/Hardware. Cloud Computing/Cloud Management. Seth Vargo walks through how to use Terraform to setup and configure a Google Cloud Run service. Continuing his focus on cloud-init , Luc Dekens has added four more articles to his site discussing this tool. Networking. Operating Systems/Applications.

Open Source 60

Open Source Vmware Authentication Storage 60

Scott Lowe

SEPTEMBER 2, 2019

” As it turns out, their product is actually quite interesting, and has relevance not only in “traditional” VMware vSphere environments but also in environments more focused on cloud-native technologies like Kubernetes. So what is “disaggregated storage”? NVMe/TCP acceleration.

Meeting 60

Meeting Storage HP Dell 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. Servers/Hardware. Cloud Computing/Cloud Management. Kit Colbert shares 5 predictions for cloud-native applications in 2017. Alpine Linux 3.5

Vmware 60

Vmware Linux Open Source Data Center 60

Scott Lowe

MARCH 1, 2019

I’m a couple weeks late on this one; wanted to publish it earlier but work has been keeping me busy (lots and lots of interest in Kubernetes and cloud-native technologies out there!). VyOS is an open source Linux-based network operating system.). Servers/Hardware. Cloud Computing/Cloud Management. Networking.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

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. Servers/Hardware. Cloud Computing/Cloud Management.

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

JULY 21, 2016

First up, there’s a great article on using IPVLAN with Docker and Cumulus Linux (with a tie back to sFlow, naturally!). Here’s a walkthrough by Cody Bunch on setting up BGP on Linux with Cumulus Quagga. Servers/Hardware. Cloud Computing/Cloud Management. If this is the case, I’d highly recommend working on that.).

Vmware 60

Vmware Linux Storage Hardware 60

Scott Lowe

JUNE 4, 2013

First up, Jason goes off on a rant about network virtualization , briefly hitting topics like the relationship between overlays and hardware, the role of hardware in network virtualization, the changing roles of data center professionals, and whether overlays are the next logical step in the evolution of the network. Servers/Hardware.

HP 61

HP Virtualization Hardware Network 61

Scott Lowe

DECEMBER 17, 2015

Before I present this episode’s collection of links, articles, and thoughts on various data center technologies, allow me to first wish all of my readers a very merry and very festive holiday season. If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

JANUARY 6, 2018

This post is a bit older, but covers a challenge faced by cloud-native darling Netflix—how does one, exactly, identify which application used which IP address at a given point in time? Servers/Hardware. Christian Kellner talks about work done on Thunderbolt 3 security levels for GNU/Linux. Cloud Computing/Cloud Management.

Linux 60

Linux Vmware Comparison Network 60

Scott Lowe

APRIL 17, 2017

The second example Hykes shares is the friction involved in moving apps from the desktop (using something like Docker for Mac) to the cloud (using something like Docker for AWS). The demo shows off multi-stage builds and the desktop-to-cloud integration from both Docker for Mac and Docker for Windows.

Linux 60

Linux Open Source Windows Security 60

Scott Lowe

NOVEMBER 30, 2012

Both the hardware as well as the software have served me well. Further, I need to ensure that the applications I need to get my job done will be present on my next platform. Macintosh iPhone Linux' It’s a shame…but such is life. The only constant is change. Why I Might Leave OS X. Apple and VMware…or Xen?

Operating Systems 131

Operating Systems Apple Applications Linux 131

Scott Lowe

SEPTEMBER 10, 2013

This is a liveblog of Intel Developer Forum (IDF) 2013 session EDCS003, titled “Enhancing OpenStack with Intel Technologies for Public, Private, and Hybrid Cloud.” ” The presenters are Girish Gopal and Malini Bhandaru, both with Intel. COSBench is available at https://github.com/intel-cloud/cosbench.

Intel 60

Intel Storage Open Source Hardware 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. Flavio Leitner has a nice article comparing OVS internal ports with Linux veth devices. Servers/Hardware. Networking.

Vmware 60

Vmware Network Virtualization IPv6 60

Scott Lowe

FEBRUARY 4, 2013

In particular, the use of OpenFlow to perform granular per-flow control when there are thousands (or maybe only hundreds) of flows presents a scalability challenge (for now, at least). Servers/Hardware. Cisco UCS is pretty cool in that it makes automation of compute hardware easier through such abstractions as server profiles.

Vmware 115

Vmware Storage Virtualization Network 115

Scott Lowe

OCTOBER 8, 2014

Servers/Hardware. Cloud Computing/Cloud Management. An earlier blog post on cloud native software is pretty good, too. This is really good stuff, especially if you are trying to expand your boundaries learning about cloud application design patterns. Single-process containers or multi-process containers?

Storage 60

Storage Intel Disaster Recovery Virtualization 60

Scott Lowe

OCTOBER 5, 2012

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. Servers/Hardware. Cloud Computing/Cloud Management. Only a true geek would be interested in this, but here’s some information on running OpenBSD in KVM on Linux.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

MAY 3, 2013

Servers/Hardware. Linux distributions that offer ARM support, though—like Ubuntu, RHEL, and SuSE—are supported, however. It will be interesting to see how the support of a “Tier 1″ hardware vendor like HP affects the adoption of ARM in the enterprise. Cloud Computing/Cloud Management.

Vmware 109

Vmware Storage Virtualization HP 109

Scott Lowe

DECEMBER 10, 2015

Servers/Hardware. This article provides a good introductory overview of Linux iptables commands for configuring host-based firewall rules on your Linux systems. This article provides a good introductory overview of Linux iptables commands for configuring host-based firewall rules on your Linux systems.

Windows 60

Windows Firewall Linux Architecture 60

Scott Lowe

APRIL 18, 2017

Golub then transitions into the meat of the general session presentation, which (understandably) is focused on Docker in the enterprise. Once again, I’m not clear how using Docker fixes infrastructure provisioning delays, or how using Docker fixes issues with patching and hardware maintenance.

Oracle 60

Oracle Applications Virtualization Security 60

Scott Lowe

SEPTEMBER 11, 2014

A traditional SRF architecture can be replicated with COTS hardware using multi-queue NICs and multi-core/multi-socket CPUs. Testing latency and jitter using a Spirent shows that an SRF compares very favorably with an edge router, but not so well against a core router (even though everything on the SRF is software-based running on Linux).

Load Balancer 61

Load Balancer Intel Network Hardware 61

Scott Lowe

OCTOBER 27, 2017

Servers/Hardware. Cloud Computing/Cloud Management. For what it’s worth, I’ve never tried NetBSD, but I have yet to run into any similar issues with any distribution of Linux I’ve tried. Russell Bryant has a post on Open Virtual Network (OVN) , a project within the Open vSwitch (OVS) community.

Firewall 60

Firewall Virtualization Network Storage 60

Scott Lowe

MAY 12, 2016

Servers/Hardware. Cloud Computing/Cloud Management. If you think that “infrastructure as code,” particularly when in conjunction with cloud platforms (private or public) isn’t a thing, then you need only look at all the various orchestration tools designed to help you define infrastructure in some format. Maybe next time?

Vmware 60

Vmware Windows Network Agile 60

Scott Lowe

MAY 11, 2018

Servers/Hardware. Cloud Computing/Cloud Management. Thomas Graf explains why the Linux kernel community is replacing iptables with BPF. William Lam discusses the new MAC learning functionality present in vSphere 6.7 Yep, get used to it folks—it’s where the industry is headed. Career/Soft Skills.

Network 60

Network Virtualization Open Source Vmware 60

CIO Business Intelligence

AUGUST 23, 2022

But laying a digital foundation for the future presents unique challenges in the healthcare industry. Most healthcare organizations are currently reliant on a range of legacy technologies, making the transition to digital and cloud-based solutions complex and slow-moving.

Healthcare 90

Healthcare Systems Administration Business Intelligence Software 90

Scott Lowe

JUNE 11, 2014

Servers/Hardware. Cloud Computing/Cloud Management. Linux Journal has a nice multi-page write-up on Docker containers that might be useful if you are still looking to understand Docker’s basic building blocks. Like a lot of other solutions, it’s implemented as a VM that presents NFS back to the hypervisors.

Vmware 60

Vmware Storage Network Virtualization 60

Scott Lowe

APRIL 8, 2014

Matthew Brender touches on a networking issue present in VMware ESXi with regard to VMkernel multi-homing. Servers/Hardware. Here’s a quick article on how to assess if your Linux-based server is affected. Cloud Computing/Cloud Management. Bob McCouch has a nice write-up on options for VPNs to AWS.

Vmware 60

Vmware Windows Virtualization Storage 60

Scott Lowe

APRIL 24, 2015

Tyler Christiansen recently published a post on a network automation workflow that was based on a presentation he gave at the SF Network Automation meetup. This post contains a link to a useful presentation on the essential parts of EVPN. Servers/Hardware. Cloud Computing/Cloud Management.

Vmware 60

Vmware Storage Firewall Network 60

Scott Lowe

MARCH 23, 2017

Servers/Hardware. Cloud Computing/Cloud Management. Paul Johnston takes a very sensible approach in his post on cloud first serverless second. Here’s a post outlining some of VMware’s more prominent open source projects in the “cloud-native” space. Sorry, I don’t have anything this time around. and vSphere.

Open Source 60

Open Source Storage Vmware Network 60

Scott Lowe

JULY 14, 2015

You might also find it useful to review this OVN presentation from the recent OpenStack Summit in Vancouver. A video recording of the presentation is also available on YouTube. Servers/Hardware. Cloud Computing/Cloud Management. QualiSystems has a series of articles on open networking standards. Running vSphere 6?

Vmware 60

Vmware Devops Virtualization Network 60

Scott Lowe

OCTOBER 23, 2013

Servers/Hardware. Cloud Computing/Cloud Management. Kenneth Hui—with whom I have the privilege of co-presenting at the OpenStack Summit in Hong Kong in less than a month—has a comprehensive write-up on using Vagrant and Chef to build an HA OpenStack installation on your laptop. What makes up a hybrid cloud?

Vmware 60

Vmware Network Virtualization Storage 60