Scott Lowe

FEBRUARY 1, 2019

The folks over at Cilium took a look at a recent CNI benchmark comparison and unpacked it a bit. Servers/Hardware. Operating Systems/Applications. Jorge Castro shares some informal notes on using Clear Linux as an everyday DevOps/cloud-native/Kubernetes client. There’s some good information in their article.

Network 60

Network Resources Devops Vmware 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. Operating Systems/Applications. Next, Peter posted an article on using sFlow for BGP route analytics.

Vmware 60

Vmware Linux Storage Hardware 60

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. Marcos Hernandez (a colleague on the NSX team at VMware) recently pointed out this Heat template for a multi-tier application with dynamic routing (via Quagga). Operating Systems/Applications.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

MARCH 30, 2018

This is an older post (more than 2 years old), but as far as I can tell the concepts are still quite applicable. Servers/Hardware. Tirumarai Selvan has a comparison. Operating Systems/Applications. Eben Freeman shows how to integrate Istio, Envoy, and Honeycomb for detailed application statistics. Virtualization.

Linux 60

Linux Vmware Windows Applications 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). Servers/Hardware. Operating Systems/Applications. Have I mentioned the ESXi Virtual Appliance ?

Vmware 60

Vmware Devops Storage Linux 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

AUGUST 16, 2017

Anthony Shaw has a good comparison of Ansible, StackStorm, and Salt (with a particular view at applicability in a networking context). Servers/Hardware. Here’s a quick post on nftables , the (eventual) Linux replacement for iptables. Check out this blog on work done to bring firmware updates into the land of Linux.

Open Source 60

Open Source Network Linux Engineering 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). Servers/Hardware. Operating Systems/Applications. Have I mentioned the ESXi Virtual Appliance ?

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

MARCH 8, 2016

Cumulus Networks recently shifted their pricing and licensing model toward perpetual licenses; this article has more information and a comparison of the old vs. new models. Servers/Hardware. Operating Systems/Applications. ZFS will be in the next Ubuntu Linux LTS release. VCE—er, or is it EMC Converged Platforms Division?—recently

Vmware 60

Vmware Linux Intel Network 60

Scott Lowe

MARCH 23, 2017

Gabriele Gerbino has a nice write-up about Cisco’s efforts with APIs ; his article includes a brief description of YANG data models and a comparison of working with network devices via SSH or via API. Servers/Hardware. Operating Systems/Applications. installation caused by duplicate NSX Manager UUIDs. Check back next time!

Open Source 60

Open Source Storage Vmware Network 60

Scott Lowe

APRIL 24, 2015

Servers/Hardware. Kevin Houston’s March 2015 blade server comparisons might be a useful place to start. It’s important to note that these security enhancements don’t really represent “net new” functionality but rather reflect existing Linux security constructs now being exposed and usable by Docker.

Vmware 60

Vmware Storage Firewall Network 60

The Verge

JUNE 25, 2021

WSL, which is the part of Windows that lets you run Linux. That’s in comparison to the very controversial 30 percent that Apple charges. We have layers in the cloud from the applications all the way to infrastructure. Different application vendors and companies use it in different ways. It’s a practical reality, really.

Windows 80

Windows Microsoft Operating Systems System 80

Scott Lowe

APRIL 2, 2021

In this post , Jakub Sitnicki digs way deep into the Linux kernel to uncover the answer to the question, “Why are there no entries in the conntrack table for SYN packets dropped by the firewall?” Servers/Hardware. Linux malware is getting more sophisticated. Operating Systems/Applications. Check out cloudlist.

Vmware 60

Vmware Firewall Storage Comparison 60

ForAllSecure

APRIL 19, 2023

It manages all the hardware and all the software on a system. So what do we mean by managing all the hardware? That’s your applications, your web browser, you streaming media. That program, then, handled all the issues of hardware and software. [Music] VAMOSI: What is an operating system? And software?

Operating Systems 40

Operating Systems System Open Source Applications 40

Scott Lowe

DECEMBER 6, 2012

First up is Brent Salisbury’s how to build an SDN lab without needing OpenFlow hardware. Not unsurprisingly, one of the key advantages of STT that’s highlighted is its improved performance due to TSO support in NIC hardware. Servers/Hardware. Operating Systems/Applications. Storage.

Vmware 109

Vmware Virtualization Storage Hardware 109

Scott Lowe

JUNE 11, 2014

He makes comparisons among server virtualization, 10 Gigabit Ethernet, and SDN, and feels that in order for SDN to really hit this market it needs to be “not a user-facing feature, but rather a means to an end” (his words). Servers/Hardware. Operating Systems/Applications. Similar Posts: Technology Short Take #40.

Vmware 60

Vmware Storage Network Virtualization 60

Scott Lowe

MARCH 5, 2013

He starts out by discussing proactive vs. reactive flows , in which Brent explains that OpenFlow performance is less about OpenFlow and more about how flows are inserted into the hardware. Servers/Hardware. Operating Systems/Applications. Scott Hogg has a nice list of 9 common Spanning Tree mistakes you shouldn’t make.

Virtualization 102

Virtualization Storage Vmware Network 102

Scott Lowe

OCTOBER 22, 2015

Servers/Hardware. Rancher—the company behind RancherOS (Linux distro that uses Docker for system services as well as user applications) and Rancher (a management platform for containerized infrastructure)—recently announced a container metadata service they’re saying is analogous to Amazon’s Instance Metadata service.

Vmware 60

Vmware Virtualization Guidelines Network 60