Scott Lowe

SEPTEMBER 3, 2013

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. I found this write-up on using OVS port mirroring with Security Onion for intrusion detection and network security monitoring.

Vmware 60

Vmware Data Center Storage Disaster Recovery 60

Scott Lowe

NOVEMBER 7, 2014

Nice use of VMware Fusion in part 2, by the way.). VMware, Vagrant, and Docker together is the subject of this blog post by Fabio Rapposelli. Operating Systems/Applications. It makes me wonder when VMware will announce support for CoreOS on vCloud Air. Cloud Computing/Cloud Management. Want to install ESXi 5.5

Vmware 69

Vmware Linux Storage Virtualization 69

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. As we evolve towards more automated/orchestrated environments, it’s important we don’t leave security behind.

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

APRIL 24, 2015

This is kind of cool, and (in my humble opinion) a sign of changing times: Juniper has Vagrant boxes as well as a Vagrant plugin for working with vSRX (virtual firewall) VMs (via this article from Matt Oswalt). Here are some general guidelines for configuring syslog forwarding on a Cisco ASA firewall. Operating Systems/Applications.

Vmware 60

Vmware Storage Firewall Network 60

Scott Lowe

AUGUST 16, 2017

Colin Lynch shares some details on his journey with VMware NSX (so far). I wouldn’t take this information as gospel, but here’s a breakdown of some of the IPv6 support available in VMware NSX. Operating Systems/Applications. Servers/Hardware.

Windows 60

Windows Virtualization Devops Vmware 60

Scott Lowe

MAY 12, 2016

In the event you’re interested in an idea of how much latency the use of in-kernel hypervisor firewalling (such as that offered by VMware NSX) adds, have a look at this article by Sean Howard. Speaking of AWS Lambda, here’s an article by CloudSploit on how they leverage AWS Lambda for their security scanning service.

Vmware 60

Vmware Windows Network Agile 60

Scott Lowe

APRIL 8, 2013

Greg Ferro examines a potential SDN use case (an OpenFlow use case) in the form of enterprise firewall migrations. That’s a no-no from a security perspective—see here to learn why. Mike Foley shared recently that the release candidate of the vSphere 5 Security Hardening Guide has been released. Check it out here.

Storage 111

Storage Vmware WAN Virtualization 111

Scott Lowe

JUNE 29, 2016

Sysdig Falco , a behavioral security tool with support for containers (can run in a container and can monitor containers) looks like it could be a useful addition to your security toolset. Operating Systems/Applications. Nothing this time around, but I’ll stay tuned for items to include in future posts.

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. If you’re interested in learning more about some of the new security features in vSphere 6.5, check out this post by Mike Foley—he has pointers to more details on VM Encryption, Secure Boot, and Encrypted vMotion.

Linux 60

Linux Network Virtualization IPv6 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. Here’s a great article highlighting some of the risks involved in relying only on HTTPS certificates to denote the “security” or “validity” of a site. What’s that? See here.).

Linux 60

Linux Devops Open Source Virtualization 60

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?” Even worse, this isn’t just limited to Intel chips, but may also affect ARM-based systems like Apple’s M1 CPUs.

Vmware 60

Vmware Firewall Storage Comparison 60

Scott Lowe

SEPTEMBER 24, 2021

a bevy of security articles (including a couple on very severe vulnerabilities), Kubernetes, AWS IAM, and so much more! Ivan Pepelnjak shares some links and thoughts on configuring the NSX-T firewall with a CI/CD pipeline built on GitHub Actions and Terraform Cloud. Operating Systems/Applications. Networking.

Open Source 107

Open Source Cloud Network Storage 107

Scott Lowe

OCTOBER 23, 2020

My list of links and articles from around the web seems to be a bit heavy on security-related topics this time. ” Speaking of Linux networking…Marek Majkowski of Cloudflare digs deep into conntrack , used for stateful firewalling functionality. Operating Systems/Applications. I hope you find something useful!

Open Source 60

Open Source Vmware Disaster Recovery Linux 60

Dataconomy

SEPTEMBER 12, 2023

The VM is given its own operating system and resources, but they are all contained within the host computer. Each application runs in its own sandboxed environment, which helps to prevent conflicts and improve security.

Virtualization 78

Virtualization Storage Hardware Disaster Recovery 78

Scott Lowe

MAY 3, 2013

Ranga Maddipudi ( @vCloudNetSec on Twitter) has put together two blog posts on vCloud Networking and Security’s App Firewall ( part 1 and part 2 ). Some good advice here on scaling/sizing VXLAN in VMware deployments (as well as some useful background information to help explain the advice). Operating Systems/Applications.

Vmware 109

Vmware Storage Virtualization HP 109

Scott Lowe

SEPTEMBER 24, 2021

a bevy of security articles (including a couple on very severe vulnerabilities), Kubernetes, AWS IAM, and so much more! Ivan Pepelnjak shares some links and thoughts on configuring the NSX-T firewall with a CI/CD pipeline built on GitHub Actions and Terraform Cloud. Operating Systems/Applications. Networking.

Open Source 60

Open Source Cloud Network Storage 60

Scott Lowe

SEPTEMBER 8, 2016

Dmitri Kalintsev is back with another article in a series of articles on using hardware VXLAN tunnel endpoints (VTEPs) with VMware NSX. Here’s a handy post by Dale Coghlan on how to find object IDs for just about anything in a VMware NSX environment. Operating Systems/Applications. Servers/Hardware. It’s about time.)

Vmware 60

Vmware Linux Intel Storage 60

Scott Lowe

AUGUST 25, 2015

I think I’ve mentioned this before (it’s really hard to keep track of which articles you’ve included in a Technology Short Take already, so apologies if this is a duplicate), but this article provides a good overview of the VXLAN control plane modes in VMware NSX. Operating Systems/Applications. Keep up the great work, Brent!)

Vmware 60

Vmware Linux Virtualization Tools 60

Scott Lowe

FEBRUARY 10, 2015

This time around, the content is a bit heavier on cloud management and applications/operating systems, but still lots of good content all the way around (I hope, anyway). Here’s a nice article on a multi-action security workflow built using VMware NSX, vShield Endpoint, and vCenter Orchestrator. Networking.

Open Source 60

Open Source Vmware Network IBM 60

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.

Windows 60

Windows Firewall Linux Architecture 60

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? Operating Systems/Applications. 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.

HP 106

HP Virtualization Hardware Network 106

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? Operating Systems/Applications. 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.

HP 61

HP Virtualization Hardware Network 61