Scott Lowe

MARCH 17, 2016

I recently came across a couple useful troubleshooting guides, one for Open vSwitch (OVS) and OpenStack Neutron and one for VMware NSX. Russell Pope at Kovarus recently wrote about using security groups to manage the VMware NSX distributed firewall. VMware recently GA’d version 6.2 Read more about it here. Virtualization.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

OCTOBER 27, 2017

specifically, the new container network firewall functionality. When I was using Fedora, I needed some useful information on firewall-cmd , and found this article to be helpful. Tom Scanlan shares how to use VIC volumes as a way of helping address persistent storage challenges with containers. Here’s another one.

Firewall 60

Firewall Virtualization Network Storage 60

Scott Lowe

APRIL 30, 2013

Last week I had the opportunity to join John Troyer on the VMware Communities podcast. My purpose, as John put it when he invited me, was to “gently introduce” the community to the idea of network virtualization, which is where I now spend most of my time since joining VMware in early February. Or virtualized firewalls?

Virtualization 125

Virtualization Network Vmware Load Balancer 125

Scott Lowe

MAY 12, 2016

I recently spoke at Interop 2016 in Las Vegas, and while I was there I scribbled down some notes pertaining to how decomposing applications into microservices-based architectures was similar in some respects to decomposing networks into an overlay network and an underlay (physical) network. Networking. Servers/Hardware. Maybe next time?

Vmware 60

Vmware Windows Network Agile 60

Scott Lowe

MARCH 10, 2015

Anthony Burke (disclaimer: Anthony works for VMware in the NSBU) has a post on how to use Python to automate the bulk creation of firewall rules for use with the VMware NSX distributed firewall. Here’s a post by Grant Orchard on using VMware NSX’s security groups to protect workloads deployed via vCAC (now vRA).

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

SEPTEMBER 11, 2012

Verplanke believes that DPDK (Data Plane Development Kit) and virtualization are key to virtualizing workloads that move around lots and lots of packets, such as firewalls, routers, and other similar functions. Verplanke next reviews some of the I/O optimizations and architecture of the Xeon E5 2600 series platform.

Virtualization 109

Virtualization Intel Cloud Data 109

Scott Lowe

JUNE 4, 2013

This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. App Firewall? If you aren’t using vSphere Host Profiles, this write-up on the VMware SMB blog might convince you why you should and show you how to get started. Venky explains it in this post. Virtualization.

HP 105

HP Virtualization Hardware Network 105

Scott Lowe

DECEMBER 10, 2015

We all know that security is more than just a host-based firewall, but a host-based firewall can be part of an overall security strategy. This article provides a good introductory overview of Linux iptables commands for configuring host-based firewall rules on your Linux systems. Cloud Computing/Cloud Management. Virtualization.

Firewall 60

Firewall Windows Linux Architecture 60

Scott Lowe

SEPTEMBER 12, 2012

As a provider, Expedient has to balance five core resources: compute, storage (capacity), storage (performance), network I/O, and memory. Johnson shows that the E5 processor provides higher throughput at lower CPU usage with VMDq compared to a Xeon 5500 CPU (tests were done using an Intel X520 with VMware ESXi 5.0).

Intel 108

Intel Virtualization Data Center Network 108

Scott Lowe

JUNE 4, 2013

This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. App Firewall? If you aren’t using vSphere Host Profiles, this write-up on the VMware SMB blog might convince you why you should and show you how to get started. Venky explains it in this post. Virtualization.

HP 60

HP Virtualization Hardware Network 60

Scott Lowe

MARCH 2, 2017

Tony Sangha took PowerNSX (a set of PowerShell cmdlets for interacting with NSX) and created a tool to help document the NSX Distributed Firewall configuration. Alan Renouf shows you how to retrieve NVMe storage device details using PowerCLI. What’s that? You haven’t heard of PowerNSX before? Virtualization.

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

JUNE 29, 2016

In the event you accidentally locked yourself out of vCenter using NSX’s distributed firewall, this post by Roie Ben Haim provides a workaround for getting yourself out of this pickle. Hey, VMware Fusion/Workstation team—want to know why people seem to prefer VB over your technically-superior product? Cloud Computing/Cloud Management.

Linux 60

Linux Network Hardware Vmware 60

Scott Lowe

FEBRUARY 2, 2017

Vivek Gite over at nixCraft explains how to use ufw (Uncomplicated Firewall) on Ubuntu to limit SSH connections. The post is a bit geeky but quite informative, and worth reading if SSH bastion hosts are a key part of your architecture. If you’re interested in learning more about some of the new security features in vSphere 6.5,

Linux 60

Linux Network Virtualization IPv6 60