Scott Lowe

JANUARY 18, 2017

Servers/Hardware. Stay tuned for a quick review of the hardware once it arrives. Although Rowan doesn’t specifically mention it, this command relies on tools like tr , sort , and uniq , so I’m guessing it will only work on OS X/Linux/*BSD systems. Operating Systems/Applications.

Linux 60

Linux Network Hardware Dell 60

Scott Lowe

OCTOBER 5, 2018

Servers/Hardware. The big news in the hardware space recently was the article regarding the purported Chinese hardware supply chain attack. Of the (innumerable) articles commenting on the hardware hack, this article by Joe FitzPatrick and this ErrataSec article caught my eye. Operating Systems/Applications.

Hardware 60

Hardware Open Source Vmware Linux 60

ForAllSecure

APRIL 19, 2023

It’s time to evolve beyond the UNIX operating system. So while I was editing this podcast on self-healing operating systems, I was reminded of an article that I never finished for Fobes.com. It’s a radical rethinking of how we even view our current choices of UNIX-derived operating systems.

Operating Systems 40

Operating Systems System Open Source Applications 40

Scott Lowe

FEBRUARY 28, 2022

Servers/Hardware. William Lam takes a look at some potentially interesting homelab hardware. Read this NCC Group article about some ways they’ve compromised CI/CD pipelines. Rory McCune writes about a CVE in the Linux kernel that could allow for container escape in Kubernetes. (Seriously.).

Storage 79

Storage Hardware Policies Open Source 79

Scott Lowe

MARCH 17, 2016

At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. Servers/Hardware. Russell Pope at Kovarus recently wrote about using security groups to manage the VMware NSX distributed firewall. Operating Systems/Applications. Have fun reading! Networking.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

SEPTEMBER 10, 2014

There were no major data center-centric announcements yesterday (day 1), but I suspect there will be some today (day 2) in a mega-session with Diane Bryant (SVP and GM of the Data Center Group at Intel). Intel announced yesterday that the new XL710 network adapters (which are 40Gbps adapters) will support Geneve hardware offloads.

Intel 60

Intel Hardware Linux Virtualization 60

Scott Lowe

SEPTEMBER 27, 2019

Servers/Hardware. Mike Metral shows how to use Pulumi to migrate workloads across EKS node groups with no downtime (the “no downtime” part is subject to certain caveats and restrictions, largely driven by the nature of the application involved). Operating Systems/Applications. Nothing this time around.

Load Balancer 60

Load Balancer Cloud Applications Vmware 60

Scott Lowe

FEBRUARY 9, 2018

Servers/Hardware. If you’re using CloudFormation to manage your AWS security groups in an infrastructure-as-code approach, you owe it to yourself to check out this article by Jose Luis Ordiales. Operating Systems/Applications. Michael Wittig shares some details on migrating to Amazon Linux 2. Virtualization.

Vmware 60

Vmware Linux Network Storage 60

Scott Lowe

JANUARY 19, 2018

Barry Peddycord shares an update on Ansible support for the Cumulus Linux NCLU. Servers/Hardware. The VMware Cloud-Native Apps group has a breakdown of some of the new features/functionality found in the 1.9 Operating Systems/Applications. This is pretty cool: a WYSIWYG topology designer for VMware NSX.

Vmware 60

Vmware Open Source Linux Cloud 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. What does this mean?

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

DECEMBER 8, 2017

The first was on RESTful control of Cumulus Linux ACLs (this one isn’t actually sFlow-related); the second was on combining sFlow telemetry and RESTful APIs for visibility and control in campus networks. Servers/Hardware. Both articles are worth reviewing if hardware selection is an important aspect of your role.

Vmware 60

Vmware Linux Network 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. Here’s one way , using Ravello Systems. Flavio Leitner has a nice article comparing OVS internal ports with Linux veth devices.

Vmware 60

Vmware Network Virtualization IPv6 60

Scott Lowe

OCTOBER 27, 2017

Servers/Hardware. 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. Operating Systems/Applications. 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

DECEMBER 17, 2015

If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. Servers/Hardware. This article listing 20 Linux server hardening tips contains some basic tips but is nevertheless a very good resource for someone looking for Linux security recommendations.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

AUGUST 8, 2014

It would be great to see Docker get support for connecting containers directly to Open vSwitch (OVS), which is generally considered the de facto standard for networking on Linux hosts. Jason Horn provides an example of how to script NSX security groups. Servers/Hardware. Operating Systems/Applications.

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). Servers/Hardware. Operating Systems/Applications. Andrew Montalenti discusses the state of Linux on the desktop by examining his own journey with various Lenovo-branded laptops. Networking.

Storage 60

Storage Vmware Load Balancer Network 60

SPF13

JUNE 4, 2015

Linux has become the foundation for infrastructure everywhere as it defined application portability from the desktop to the phone and from to the data center to the cloud. The Future of the Operating System. What is an Operating System ? OS Provides Portability 
 (same app runs on different hardware).

Operating Systems 100

Operating Systems System Disaster Recovery Case Study 100

Scott Lowe

NOVEMBER 16, 2015

Russell Bryant has a couple great articles on OVN— how to test OVN’s “EZ Bake” release with DevStack as well as an article on implementing OpenStack security groups using OVN ACLs (which in turn leverage the integration between Open vSwitch and the Linux kernel’s conntrack module). Servers/Hardware.

Vmware 60

Vmware Network Load Balancer Linux 60

Galido

MAY 1, 2019

These areas of tech include general IT and technology, security, IT feeds, cloud computing, data center, mobile, social media, tips and tricks, virtualization, and operating system and software blogs. Boing Boing is a website, first established as a zine in 1988, later becoming a group blog. CIO Dashboard. Boing Boing.

Resources 107

Resources Mobile Data Center Security 107

Galido

MARCH 22, 2019

These areas of tech include general IT and technology, security, IT feeds, cloud computing, data center, mobile, social media, tips and tricks, virtualization, and operating system and software blogs. Boing Boing is a website, first established as a zine in 1988, later becoming a group blog. CIO Dashboard. Boing Boing.

Resources 107

Resources Mobile Data Center Security 107

Galido

SEPTEMBER 25, 2019

These areas of tech include general IT and technology, security, IT feeds, cloud computing, data center, mobile, social media, tips and tricks, virtualization, and operating system and software blogs. Boing Boing is a website, first established as a zine in 1988, later becoming a group blog. CIO Dashboard. Boing Boing.

Mobile 77

Mobile Data Center Security Virtualization 77

Scott Lowe

OCTOBER 23, 2013

This is a reasonable way of grouping the various approaches to SDN (using SDN in the very loose industry sense, not the original control plane-data plane separation sense). I’d like to add to Paul’s analysis that it’s important to understand that, in reality, host dominant and network dominant systems can coexist.

Vmware 60

Vmware Network Virtualization Storage 60

Scott Lowe

JULY 14, 2015

Servers/Hardware. Operating Systems/Applications. The Monsanto engineering blog recently published an article on using etcd clustering with AWS Auto Scaling Groups. William Lam, who always generates some great content, has an article on automating the installation of VMware Tools on Linux with automatic kernel modules.

Vmware 60

Vmware Devops Virtualization Network 60

ForAllSecure

APRIL 22, 2021

When I started writing my first book when gadgets betray us, IoT was still known as hardware hacking, or embedded security. That's because early IoT systems consisted mostly of dumb sensors on embedded systems out in the field. We have some friends in Mexico, who are developing new hardware to interact with this.

Internet 52

Internet Research Security Tools 52

ForAllSecure

APRIL 22, 2021

When I started writing my first book when gadgets betray us, IoT was still known as hardware hacking, or embedded security. That's because early IoT systems consisted mostly of dumb sensors on embedded systems out in the field. We have some friends in Mexico, who are developing new hardware to interact with this.

Internet 52

Internet Research Security Tools 52

SPF13

MARCH 20, 2015

60s & 70s • Computer companies sold hardware • Software was free • Software was colloborative • IBM dominates. The Internet Era: 00s • Internet changes everything • Open source movement gains traction (Linux, Apache, MySQL, PHP) • Tech selling ads, bits, hardware & services • Google Dominates. The Software Era: ?

Open Source 100

Open Source Linux Software Software 100

ForAllSecure

DECEMBER 17, 2021

Vamosi: Virtual Machines are what just that; they’re software representations of hardware machines. They contain an operating system and they have confirmation for RAM and other hardware you may want to simulate. And then we'll have this other separate group that's responsible for keeping it safe.

Open Source 52

Open Source Software Software Applications 52

Scott Lowe

DECEMBER 19, 2018

I won’t go into all the gory details here; see this post for some background and then see this update from last October that summarized my previous efforts to migrate to Linux ( Fedora , specifically) as my primary desktop operating system. The motivation for using Linux is something I’ve already discussed.

Linux 60

Linux Hardware Media System 60

ForAllSecure

AUGUST 22, 2020

To do that, they needed a proof of concept system. So they created their own OS or operating system for the cyber Grand Challenge. Not quite operating system but almost like an operating system that it ran on. Vamosi: DARPA’s operating system was not entirely created out of thin air.

System 52

System Research Security Operating Systems 52

ForAllSecure

AUGUST 21, 2020

To do that, they needed a proof of concept system. So they created their own OS or operating system for the cyber Grand Challenge. Not quite operating system but almost like an operating system that it ran on. Vamosi: DARPA’s operating system was not entirely created out of thin air.

System 52

System Research Security Operating Systems 52

ForAllSecure

AUGUST 21, 2020

To do that, they needed a proof of concept system. So they created their own OS or operating system for the cyber Grand Challenge. Not quite operating system but almost like an operating system that it ran on. Vamosi: DARPA’s operating system was not entirely created out of thin air.

System 52

System Research Security Operating Systems 52

Scott Lowe

JUNE 4, 2013

What happens when multiple VXLAN logical networks are mapped to the same multicast group? Next, Jason dives a bit deeper on the relationship between network overlays and hardware , and shares his thoughts on where it does—and doesn’t—make sense to have hardware terminating overlay tunnels. Servers/Hardware.

HP 106

HP Virtualization Hardware Network 106

Scott Lowe

APRIL 21, 2016

Servers/Hardware. VMware’s Cloud-Native Apps group recently released v0.8 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). Nothing this time around. Maybe next time!

Vmware 60

Vmware Linux Hardware Network 60

Scott Lowe

JUNE 4, 2013

What happens when multiple VXLAN logical networks are mapped to the same multicast group? Next, Jason dives a bit deeper on the relationship between network overlays and hardware , and shares his thoughts on where it does—and doesn’t—make sense to have hardware terminating overlay tunnels. Servers/Hardware.

HP 61

HP Virtualization Hardware Network 61

ForAllSecure

APRIL 26, 2022

Stuxnet targets supervisory control and data acquisition systems. Instead of just targeting zero days in the Windows operating system- which it did -- it then infected Siemens Step7 systems, causing the fast-spinning centrifuges to tear themselves apart. Well, nothing’s impossible. But how might it actually happen?

System 52

System Industry Conference Network 52

ForAllSecure

AUGUST 10, 2021

That’s perhaps because of a dedicated group of hackers who are working to improve automotive security. Fortunately, there's a group of automotive hackers that are trying to help. You know with modern vehicles, they're actually becoming like they're running on bluetooth, they're running the Android operating system.

Automotive 52

Automotive Operating Systems System Tools 52

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