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 Virtualization. Servers/Hardware.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

AUGUST 11, 2016

In this post you’ll find a collection of links to articles discussing the major data center technologies—networking, hardware, security, cloud computing, applications, virtualization…you name it! (If Numan Siddique describes the native DHCP support available in OVN (Open Virtual Network). Welcome to Technology Short Take #70!

Vmware 60

Vmware Hardware Storage Linux 60

Scott Lowe

MAY 6, 2013

Although I used to work at EMC before I joined VMware earlier this year , I never really had deep access to what was going on with this project, so my thoughts here are strictly based on what’s been publicly disclosed. Hey, where’s the network virtualization support? Similar Posts: On Network Virtualization and SDN.

Storage 114

Storage Virtualization Vmware Network 114

Scott Lowe

SEPTEMBER 3, 2013

Art Fewell takes a deeper look at the increasingly important role of the virtual switch. A discussion of “statefulness” brought me again to Ivan’s post on the spectrum of firewall statefulness. VMware introduced VMware NSX recently at VMworld 2013. Virtualization. Networking.

Vmware 60

Vmware Data Center Storage Disaster Recovery 60

Scott Lowe

OCTOBER 27, 2017

Russell Bryant has a post on Open Virtual Network (OVN) , a project within the Open vSwitch (OVS) community. 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. Virtualization. Servers/Hardware.

Firewall 60

Firewall Virtualization Network Storage 60

Scott Lowe

MARCH 10, 2015

What’s really interesting to me is the (completely uncoordinated) alignment between Matt’s list of skills for networking pros and the list I provided to virtualization pros in a series of recent VMUG presentations (refer to slide 15, but the list is software development basics, Linux, automation/orchestration, and public cloud services).

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

SEPTEMBER 12, 2012

Using 1 GbE would have required too many ports, too many cables, and too many switches; 10 GbE offered Expedient a 23% reduction in cables and ports, a 14% reduction in infrastructure costs, and offered a significant bandwidth improvement (compared to the previous 1 GbE architecture). it’s not a great general-purpose solution.

Intel 108

Intel Virtualization Data Center Network 108

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. Virtualization. Networking. Servers/Hardware.

Vmware 60

Vmware Windows Network Agile 60

Scott Lowe

APRIL 29, 2015

For Carrier Ethernet, Cisco ME3600—a very expensive switch—will allow you to implement such an architecture. Products that support IPv6 and IPv4 host route-based forwarding include Hyper-V Network Virtualization, Juniper Contrail, and Cisco DFA. VMware NSX has a stateful IPv6 firewall that provides RA guard and ND inspection services.

IPv6 60

IPv6 Firewall Network Mobile 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. I just noticed this article about using Nova flavor extra-specs to pass QoS data down to the virtualization layer. Virtualization. What’s that? Check it out on GitHub.

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. Virtualization. Hey, VMware Fusion/Workstation team—want to know why people seem to prefer VB over your technically-superior product?

Linux 60

Linux Network Hardware Vmware 60

Scott Lowe

FEBRUARY 2, 2017

Michael Kashin has a great article on how Open Virtual Network (OVN, part of the Open vSwitch project) implements virtual networks in OpenStack. Vivek Gite over at nixCraft explains how to use ufw (Uncomplicated Firewall) on Ubuntu to limit SSH connections. Virtualization. Good advice. Not sure what a bastion host is?

Linux 60

Linux Network Virtualization IPv6 60

Dataconomy

SEPTEMBER 12, 2023

Server virtualization can do the trick for you if you also struggle to scale your applications to meet growing demands without breaking the bank. Server virtualization is a game-changing technology that has revolutionized the way organizations deploy and manage their IT infrastructure.

Virtualization 78

Virtualization Storage Disaster Recovery Hardware 78

Scott Lowe

AUGUST 26, 2014

Ben Fathi, CTO of VMware, takes the stage to start the keynote, and goes through a recap of yesterday’s announcements: EVO and EVO:RAIL, vCloud Air rebranding and the availability of new services, VMware Integrated OpenStack (VIO), and new product versions (vCloud Suite 5.8, betas of vSphere and VSAN).

Vmware 63

Vmware Architecture Applications Storage 63

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. Virtualization. on an Apple Xserve 3,1.

Firewall 60

Firewall Windows Linux Architecture 60

Scott Lowe

JUNE 4, 2013

Tom Nolle asks the question , “Is virtualization reality even more elusive than virtual reality?” This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. I talked before about the difference between network virtualization and SDN, so no need to mention that again.

HP 105

HP Virtualization Hardware Network 105

Scott Lowe

JUNE 4, 2013

Tom Nolle asks the question , “Is virtualization reality even more elusive than virtual reality?” This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. I talked before about the difference between network virtualization and SDN, so no need to mention that again.

HP 60

HP Virtualization Hardware Network 60