Scott Lowe

APRIL 6, 2017

Here’s a handy list of deprecated Linux network commands and their replacements. Servers/Hardware. Konstantin Ryabitsev has a series going on securing a SysAdmin Linux workstation. Part 1 covers how to choose a Linux distribution, and part 2 discusses some security tips for installing Linux on your SysAdmin workstation.

Vmware 60

Vmware Linux Storage Network 60

Scott Lowe

FEBRUARY 16, 2017

The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. Servers/Hardware. I use OTR with Adium on OS X, and OTR with Pidgin on my Fedora Linux laptop.).

Vmware 60

Vmware Linux Storage Load Balancer 60

Virtualized Greek

AUGUST 27, 2013

You can save money if you consolidate your Windows & Linux workloads to fewer servers. The network industry has focused on protocols for a long time because of the need interoperate hardware devices between vendors. The Second are is the higher level layers such as load balancing.

Virtualization 68

Virtualization Network Load Balancer Vmware 68

Scott Lowe

OCTOBER 14, 2017

Romain Decker has an “under the hood” look at the VMware NSX load balancer. Servers/Hardware. This graphical summary of the AWS Application Load Balancer (ALB) is pretty handy. Abdullah Abdullah shares some thoughts on design decisions regarding NSX VXLAN control plane replication modes. Virtualization.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 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. Workloads are scheduled across these server/linecards using Valiant Load Balancing (VLB). Networking Hardware IDF2014 Intel' Out of order frames from the SRF were less than 0.04% in all cases.

Load Balancer 68

Load Balancer Intel Network Hardware 68

Scott Lowe

SEPTEMBER 12, 2013

Recep will cover the hardware side of ONP; Gershon will cover the software side of ONP (referred to as ONS). ONP fits into this picture by performing VTEP functions in hardware (at line rate). Some of these services naturally should run on the top-of-rack (ToR) switch, like load balancing or security services.

Intel 68

Intel Load Balancer Architecture Virtualization 68

Scott Lowe

SEPTEMBER 27, 2019

The “TL;DR” for those who are interested is that this solution bypasses the normal iptables layer involved in most Kubernetes implementations to load balance traffic directly to Pods in the cluster. Servers/Hardware. Unfortunately, this appears to be GKE-specific. Nothing this time around.

Load Balancer 60

Load Balancer Cloud Vmware Applications 60

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. I needed to fill in some other knowledge gaps first.) Until the 1.3

Vmware 115

Vmware Virtualization Storage Hardware 115

Scott Lowe

AUGUST 17, 2018

Servers/Hardware. Scott McCarty explains sVirt and how it’s used to isolate Linux containers. Check out these articles talking about IPVS-based in-cluster load balancing , CoreDNS , dynamic kubelet configuration , and resizing persistent volumes in Kubernetes. Nothing this time around, sorry!

Load Balancer 60

Load Balancer Storage Network Linux 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. Andrew Montalenti discusses the state of Linux on the desktop by examining his own journey with various Lenovo-branded laptops. Here’s hoping you find something useful! Networking.

Storage 60

Storage Vmware Load Balancer IPv6 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

OCTOBER 5, 2012

Servers/Hardware. Only a true geek would be interested in this, but here’s some information on running OpenBSD in KVM on Linux. Given my past interest in OpenBSD and my present interest in KVM on Linux, this might be something I’ll be trying myself soon. That’s pretty handy. Technology Short Take #27.

Storage 92

Storage Vmware Linux Virtualization 92

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. In case you missed it, Docker 1.9

Vmware 60

Vmware Network Load Balancer Linux 60

Scott Lowe

FEBRUARY 10, 2015

Tom’s key point is that disaggregating software from hardware—which is kind of a given if you’re buying whitebox networking gear—gives you the (potential) flexibility to repurpose network gear based on the software running on it. Servers/Hardware. However, it’s at least possible with whitebox networking gear.

Open Source 60

Open Source Vmware Network IBM 60