Scott Lowe

AUGUST 6, 2021

Networking. Back in April of this year, Patrick Ogenstad announced Netrasp , a Go package for writing network automation tooling in Go. I saw this blog post about Curiefense , an open source Envoy extension to add WAF (web application firewall) functionality to Envoy. Operating Systems/Applications.

Open Source 60

Open Source Load Balancer WAN Architecture 60

Scott Lowe

OCTOBER 27, 2017

Networking. This is a slightly older post providing an overview of container networking , but still quite relevant. 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. That’s cool.

Firewall 60

Firewall Virtualization Network Storage 60

Linux Academy

MARCH 28, 2019

As organizations increase their use of Kubernetes in public and Hybrid cloud architectures, it is important not to let a maiden voyage end like a Titanic catastrophe. Vulnerabilities at the operating system level may be exploited by rogue container workloads if not hardened. Implement Network Policies. Manage Secrets.

Policies 68

Policies Linux Security Virtualization 68

Scott Lowe

DECEMBER 10, 2015

Networking. Tor Anderson has an article on using IPv6 for network boot using UEFI and iPXE. has a great blog series going called “Hey, I can DevOps my Network too!” 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.

Windows 60

Windows Firewall Linux Architecture 60

Scott Lowe

MARCH 17, 2016

Networking. At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. Here’s another topic that came up at the recent DevOps Networking Forum: Spotify’s SDN Internet Router (SIR). Here’s some information on Nuage Networks’ experimental Docker Network plugin.

Vmware 60

Vmware Linux Network Open Source 60

SecureWorld News

SEPTEMBER 27, 2023

Threat Intelligence can be divided into four primary levels: technical, tactical, operational, and strategic. This ranges from understanding cryptography to having insights into operating system architecture. One approach here is to utilize a pretrained neural network tailored to classify images from TI reports.

Artificial Intelligence 82

Artificial Intelligence Malware Knowledge Base Report 82

Scott Lowe

JUNE 4, 2013

Networking. What happens when multiple VXLAN logical networks are mapped to the same multicast group? 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 106

HP Virtualization Hardware Network 106

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 Networking. Numan Siddique describes the native DHCP support available in OVN (Open Virtual Network).

Vmware 60

Vmware Hardware Storage Linux 60

Scott Lowe

FEBRUARY 2, 2017

Networking. Michael Kashin has a great article on how Open Virtual Network (OVN, part of the Open vSwitch project) implements virtual networks in OpenStack. In a bit of an older post from late summer 2016, Matt Oswalt outlines why network engineers should care about the network software supply chain. Good advice.

Linux 60

Linux Network Virtualization IPv6 60

Scott Lowe

SEPTEMBER 3, 2013

Networking. A discussion of “statefulness” brought me again to Ivan’s post on the spectrum of firewall statefulness. Cisco shared some thoughts on what they termed a “software-only” approach; naturally, they have a different vision for data center networking (and that’s OK). Servers/Hardware.

Vmware 60

Vmware Data Center Storage Disaster Recovery 60

Scott Lowe

MAY 12, 2016

Networking. 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.

Vmware 60

Vmware Windows Network Agile 60

Scott Lowe

JUNE 4, 2013

Networking. What happens when multiple VXLAN logical networks are mapped to the same multicast group? 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 61

HP Virtualization Hardware Network 61

Scott Lowe

MARCH 2, 2017

Networking. Skydive is (in the project’s own words) an “open source real-time network topology and protocols analyzer.” 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. Operating Systems/Applications.

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

JUNE 29, 2016

Networking. First, we have this post on HiCube, which covers MACVLAN vs. Next, we have a pair of articles by Sreenivas Makam; the first covers MACVLAN and IPVLAN basics , while the second tackles the Docker MACVLAN and IPVLAN network plugins. Operating Systems/Applications. Cloud Computing/Cloud Management.

Linux 60

Linux Network Hardware Vmware 60

Scott Lowe

MARCH 10, 2015

Networking. I love this post from Matt Oswalt on five next-gen skills for networking pros. 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. Operating Systems/Applications.

Vmware 60

Vmware Linux Hardware Software Development 60

Dataconomy

MARCH 28, 2023

It requires a deep understanding of the interplay between IoT devices, sensors, networks, and data science tools and techniques. An IoT ( Internet of Things ) ecosystem refers to a network of interconnected devices, sensors, and software applications that work together to collect, analyze, and share data. What is an IoT ecosystem?

Data 28

Data Storage Security Network 28

Dataconomy

MARCH 28, 2023

It requires a deep understanding of the interplay between IoT devices, sensors, networks, and data science tools and techniques. An IoT ( Internet of Things ) ecosystem refers to a network of interconnected devices, sensors, and software applications that work together to collect, analyze, and share data. What is an IoT ecosystem?

Data 28

Data Storage Security Network 28

Dataconomy

SEPTEMBER 21, 2023

With OCSP, clients do not need to download and store large CRLs, which can reduce network bandwidth usage and improve performance. indicating that the certificate is revoked when it is actually still valid), which can occur due to misconfigurations, network errors, or other issues.

Security 41

Security Authentication Internet Resources 41

ForAllSecure

JUNE 21, 2022

Living off the Land (LoL) is an attack where files already on your machine, ie your operating system, are used against you. So I started thinking about other ways to hide messages or even how to get malware onto a system without it being detected. Like all the unused files within your operating system?

Operating Systems 52

Operating Systems System Microsoft Examples 52

CIO Business Intelligence

NOVEMBER 2, 2023

PoLP is also a fundamental pillar of zero trust network access (ZTNA) 2.0. eliminates the need for administrators to think about network constructs and enables fine-grained access control to implement comprehensive least-privileged access. Within a ZTNA 2.0 Within a ZTNA 2.0 The principle of least privilege within ZTNA 2.0

Backup 126

Backup Information Security Security Operating Systems 126

Dataconomy

SEPTEMBER 12, 2023

The VM is given its own operating system and resources, but they are all contained within the host computer. Server virtualization software creates a layer of abstraction between the physical hardware and the operating system, allowing multiple OSes to run on a single machine ( Image credit ) How does server virtualization work?

Virtualization 78

Virtualization Storage Hardware Disaster Recovery 78