CIO Business Intelligence

MAY 23, 2023

Firewalls have come a long way from their humble beginnings of assessing network traffic based on appearance alone. Here are six predictions for the future of the firewall. For example, a typical NGFW now may be equipped with firewalling, SD-WAN, a Wi-Fi controller for SD-Branch, an Ethernet controller, and zero-trust functionality.

Firewall 98

Firewall Network WAN Security 98

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. Operating Systems/Applications. The NIST and DHS have teamed up on some efforts to secure BGP; more information is available in this article.

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 Pod Security Policy.

Policies 68

Policies Linux Security Virtualization 68

Scott Lowe

AUGUST 11, 2016

According to this article , “It is hard to overstate what a sea change” this sort of architecture will create. I saw two articles talking about his experience: one on redirecting NSX firewall logs into SmartLog and a second one ranting on how the NSX DFW isn’t quite enterprise ready. Operating Systems/Applications.

Vmware 60

Vmware Hardware Storage Linux 60

Scott Lowe

MARCH 17, 2016

Russell Pope at Kovarus recently wrote about using security groups to manage the VMware NSX distributed firewall. Ravello Systems (now part of Oracle Cloud following their acquisition by Oracle) has a REST API that allows you to programmatically interact with their service. Operating Systems/Applications.

Vmware 60

Vmware Linux Network Open Source 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. Operating Systems/Applications. This tool exports the DFW configuration and then converts it into Excel format, and is available on GitHub. What’s that?

Linux 60

Linux Devops Open Source Virtualization 60

Dataconomy

MARCH 28, 2023

This data is a goldmine of insights that can be harnessed to optimize various systems and processes. Data science can help organizations derive valuable insights from IoT data and make data-driven decisions to optimize their operations. It can also be used to identify potential areas for improvement and optimization within the system.

Data 28

Data Storage Security Network 28

Dataconomy

MARCH 28, 2023

This data is a goldmine of insights that can be harnessed to optimize various systems and processes. Data science can help organizations derive valuable insights from IoT data and make data-driven decisions to optimize their operations. It can also be used to identify potential areas for improvement and optimization within the system.

Data 28

Data Storage Security Network 28

Dataconomy

SEPTEMBER 21, 2023

Online Certificate Status Protocol uses a client-server architecture, with the client sending a request to the server to check the certificate status ( Image credit ) To ensure the validity of the response, the client verifies that the digital signature on the response is valid. Featured image credit: wirestock/Freepik.

Security 41

Security Authentication Internet Resources 41

Scott Lowe

SEPTEMBER 3, 2013

A discussion of “statefulness” brought me again to Ivan’s post on the spectrum of firewall statefulness. Kenneth Hui, formerly of VCE and now with Rackspace, does a great job of explaining how VMware vSphere fits into the OpenStack Nova architecture in this blog post. Operating Systems/Applications.

Vmware 60

Vmware Data Center Storage Disaster Recovery 60

Scott Lowe

FEBRUARY 2, 2017

Vivek Gite over at nixCraft explains how to use ufw (Uncomplicated Firewall) on Ubuntu to limit SSH connections. Operating Systems/Applications. The post is a bit geeky but quite informative, and worth reading if SSH bastion hosts are a key part of your architecture. Have a look at the article for more details.

Linux 60

Linux Network Virtualization IPv6 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. Operating Systems/Applications. I enjoyed Adam Leventhal’s evaluation of APFS , the new file system announced at the most recent Apple WWDC.

Linux 60

Linux Network Hardware Vmware 60

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. Operating Systems/Applications.

Vmware 60

Vmware Windows Network Agile 60

CIO Business Intelligence

NOVEMBER 2, 2023

So, in a nutshell, least privilege says that every object in a system – whether a user, a process, or an application – must be able to access only the information and resources that it needs, and no more. The result was that it was straightforward, at times elementary, for malicious software to own the entire system.

Backup 128

Backup Information Security Security Operating Systems 128

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. Operating Systems/Applications. I don’t think I’ve mentioned this before; if I have, please forgive me. Servers/Hardware.

Vmware 60

Vmware Linux Hardware Software Development 60

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

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. Operating Systems/Applications.

Windows 60

Windows Firewall Linux Architecture 60

SecureWorld News

SEPTEMBER 27, 2023

To protect against them, you need to know the methods of hackers and the principles of malware operation. With this insight, you can craft effective security systems, adapt and enhance your business operations, and put the right protective measures in place.

Artificial Intelligence 85

Artificial Intelligence Malware Knowledge Base Report 85

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. To see all the cool ways an attacker evaded detection in a system. So I started thinking about other ways to hide messages or even how to get malware onto a system without it being detected.

Operating Systems 52

Operating Systems System Microsoft Examples 52

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. Venky explains it in this post. Venky also has a great write-up on how the VTEP (VXLAN Tunnel End Point) learns and creates the forwarding table.

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. Venky explains it in this post. Venky also has a great write-up on how the VTEP (VXLAN Tunnel End Point) learns and creates the forwarding table.

HP 61

HP Virtualization Hardware Network 61