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. For what it’s worth, I’ve never tried NetBSD, but I have yet to run into any similar issues with any distribution of Linux I’ve tried.

Firewall 60

Firewall Virtualization Network Storage 60

Scott Lowe

JUNE 18, 2017

Anthony Burke gives a little bit of a sneak peek at some functionality from the upcoming v3 release of PowerNSX: searching NSX Distributed Firewall (DFW) rules. The article supplies lots of useful information, but I really would’ve liked some concrete examples of how to glue these pieces together. Cloud Computing/Cloud Management.

Windows 60

Windows Vmware Virtualization Linux 60

Scott Lowe

JUNE 18, 2017

Anthony Burke gives a little bit of a sneak peek at some functionality from the upcoming v3 release of PowerNSX: searching NSX Distributed Firewall (DFW) rules. The article supplies lots of useful information, but I really would’ve liked some concrete examples of how to glue these pieces together. Cloud Computing/Cloud Management.

Windows 60

Windows Vmware Virtualization Linux 60

Scott Lowe

MARCH 10, 2015

I highly recommend you read the entire post, but in short the five skills Matt recommends are software skills (which includes configuration management and software development tools like Git ), Linux, deep protocol knowledge, hypervisor and container networking, and IPv6. NixOS seems to be an interesting re-think of a Linux distribution.

Vmware 60

Vmware Linux Hardware Software Development 60

Scott Lowe

NOVEMBER 7, 2014

It was good to read this post on Cumulus Linux first impressions by Jeremy Stretch. I’m a fan of Cumulus, but I’m admittedly a Linux guy (see here ) so you might say I’m a bit biased. Jeremy is a “hard-core” networking professional, and so hearing his feedback on Cumulus Linux was, in my opinion, useful.

Vmware 69

Vmware Linux Storage Virtualization 69

Scott Lowe

MARCH 17, 2016

At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. Russell Pope at Kovarus recently wrote about using security groups to manage the VMware NSX distributed firewall. I knew Microsoft was cozying up to Linux, but I honestly didn’t expect they would port SQL Server to Linux.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

MARCH 2, 2017

OK, now that I’ve mentioned Skydive, I can talk about this article that provides an example of functional SDN testing with Terraform and Skydive. Terraform is used to turn up OpenStack infrastructure, and Skydive (via connections into Neutron and OpenContrail, in this example) is used to validate SDN functionality. What’s that?

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

MARCH 8, 2015

Upon hearing the news that Red Hat had released the Atomic Host variant of Red Hat Enterprise Linux , I decided that it would be a good idea for me to take a look at the CentOS flavor of the Atomic Host variant. I’ve spent most of my time with Ubuntu (for general purpose Linux use cases) and CoreOS (for container-optimized use cases).

Linux 60

Linux Cloud Firewall Vmware 60

Scott Lowe

AUGUST 16, 2017

Anthony Burke gives a little bit of a sneak peek at some functionality from the upcoming v3 release of PowerNSX: searching NSX Distributed Firewall (DFW) rules. The article supplies lots of useful information, but I really would’ve liked some concrete examples of how to glue these pieces together. Cody De Arkland shows you how.

Windows 60

Windows Virtualization Devops Vmware 60

Galido

JUNE 28, 2018

Monitoring QoS (Quality of service, for example, to monitor VoIP). SSH: For Linux / Unix and MacOS systems. Bandwidth monitoring using SNMP, WMI, NetFlow, sFlow, jFlow, packet sniffing. Application monitoring. Web monitoring. Monitoring of virtual servers. SLA monitoring (service level agreement). Environmental monitoring.

Network 60

Network LAN VOIP Licensing 60

Scott Lowe

AUGUST 11, 2016

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. Leonid Mamchenkov builds on my some of my articles on Ansible and SSH bastion hosts; I particularly liked the use of the “negation” in his example SSH configuration.

Vmware 60

Vmware Hardware Storage Linux 60

Dataconomy

OCTOBER 17, 2023

The organization’s security team then works to implement these recommendations, which may involve patching software, configuring firewalls, or implementing additional security controls. For example, she demonstrates how an attacker could inject malicious SQL code to extract sensitive data or manipulate user accounts.

Network 45

Network Security Applications System 45

Scott Lowe

APRIL 24, 2015

If you’re looking for more examples of how to incorporate these sorts of tools into your own network automation workflow, I’d recommend having a look at this article. Here are some general guidelines for configuring syslog forwarding on a Cisco ASA firewall. The workflow incorporates Ansible, git, Jenkins, and Gerrit. Servers/Hardware.

Vmware 60

Vmware Storage Firewall Network 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. Alan Renouf has a post on the PowerCLI module for vRealize Operations (vR Ops) that covers the basics of using the module along with some examples.

Vmware 60

Vmware Windows Network Agile 60

ForAllSecure

APRIL 3, 2019

Network filters applied by solutions like Web Application Firewalls (WAFs) aim to solve symptoms, not the root cause. For example, the OSS-Fuzz program at Google has found over 13,000 bugs in Chrome. For example, in CGC.we We are focusing on Linux today, as we believe it will be the best user experience out-the-door.

Programming 52

Programming Software Software Research 52

Scott Lowe

APRIL 2, 2021

This post provides some examples of shared control planes (and thus shared failure domains) within networking. 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?”

Vmware 60

Vmware Firewall Storage Comparison 60

ForAllSecure

APRIL 3, 2019

Network filters applied by solutions like Web Application Firewalls (WAFs) aim to solve symptoms, not the root cause. For example, the OSS-Fuzz program at Google has found over 13,000 bugs in Chrome. For example, in CGC.we We are focusing on Linux today, as we believe it will be the best user experience out-the-door.

Programming 40

Programming Software Software Research 40

ForAllSecure

APRIL 3, 2019

Network filters applied by solutions like Web Application Firewalls (WAFs) aim to solve symptoms, not the root cause. For example, the OSS-Fuzz program at Google has found over 13,000 bugs in Chrome. For example, in CGC.we We are focusing on Linux today, as we believe it will be the best user experience out-the-door.

Programming 40

Programming Software Software Research 40

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.

Windows 60

Windows Firewall Linux Architecture 60

ForAllSecure

MARCH 30, 2022

So after elevating a previous to it, we could conduct a more extensive recon and on the Jupyter Notebook environment So after conducting more thorough recon on the Jupyter Notebook environment, we found out that the Jupyter Notebook had some local firewall rules restricting network access. One prevented them from access IMDS.

Firewall 52

Firewall Virtualization Authentication Linux 52

Scott Lowe

SEPTEMBER 8, 2016

The use of VMware NSX for microsegmentation is a really popular use case, and so the topic of scripting distributed firewall (DFW) rules often comes up. Red Hat Enterprise Linux Atomic Host (how’s that for a mouthful?) The latest example is from this article by Denny Zhang. Then again, what do I know?

Vmware 60

Vmware Linux Intel Storage 60

Scott Lowe

AUGUST 25, 2015

In this post, I’ve gathered links to posts about networking, virtualization, Docker, containers, Linux, configuration management, and all kinds of other cool stuff. Roie Ben Haim, who works in professional services at VMware, has a deep dive on the NSX distributed firewall (DFW). Welcome to Technology Short Take #53. Networking.

Vmware 60

Vmware Linux Virtualization Tools 60

Linux Academy

APRIL 8, 2019

I’m sure most everyone is familiar with the concept of passphrases, which is the use of a phrase instead of a single password — for example, “The moon is made of ch33se!” Maybe you have a SIEM, and you identify these attempts in a daily report and then address it by blocking the source IP address in your IPS or firewall.

Authentication 68

Authentication Security Firewall Backup 68

ForAllSecure

MARCH 24, 2021

That meant I tested the release candidates -- not the final product you’d buy in the stores - for consumer-grade antivirus programs, desktop firewalls, and desktop Intrusion detection systems. My example of hitting random keys and forcing the password manger to pop open illustrates the topic of this episode. What’s a worm?

Open Source 52

Open Source Operating Systems Software Software 52

ForAllSecure

MARCH 24, 2021

That meant I tested the release candidates -- not the final product you’d buy in the stores - for consumer-grade antivirus programs, desktop firewalls, and desktop Intrusion detection systems. My example of hitting random keys and forcing the password manger to pop open illustrates the topic of this episode. What’s a worm?

Open Source 52

Open Source Operating Systems Software Software 52

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 ). Linux distributions that offer ARM support, though—like Ubuntu, RHEL, and SuSE—are supported, however.

Vmware 109

Vmware Storage Virtualization HP 109

ForAllSecure

AUGUST 16, 2022

I’m reminded of when I trained to use Kali Linux. Say, for example, you are in oil and gas. Rather than -- I need a firewall -- maybe ATT&CK suggests a specific type of firewall. And maybe it’s not the firewall you currently have. Kali is a swiss army knife of useful tools. Duff: Yeah.

Tools 40

Tools Research Firewall Security 40

Scott Lowe

FEBRUARY 10, 2015

The “gotcha” is that these software stacks haven’t been written yet, so the idea of repurposing hardware from switch to firewall to load balancer is still a bit of a unicorn. First, here’s a workaround to the fact that vCA doesn’t (yet) do cloud-init, which makes injecting SSH keys into Linux instances a bit difficult.

Open Source 60

Open Source Vmware Network IBM 60

ForAllSecure

JUNE 21, 2022

I have all the abilities built into Windows or built into Linux or Mac to do this for me. Vamosi: Perhaps Kyle can give us an example of how this works in the real world. My favorite example of how this works is it's not always additive, meaning they need to bring in their own complex payloads.

Operating Systems 52

Operating Systems System Microsoft Examples 52

ForAllSecure

MAY 2, 2023

That, of course, was not all, but it is an example of how someone -- anyone on the internet -- can take a photo or blog post or Yelp review from social media, or some other seemingly random open source item and tie it back to a crime. Daniel provides an example. I was living in Alameda off of the Navy base there. Come sit next to me.

Open Source 40

Open Source Media Social Hotels 40

ForAllSecure

AUGUST 10, 2021

You can't run an operating system if you're running like even real time Linux, you probably couldn't do a very good job of activating the cylinders on your, on your engine controller so even an operating system, it has limitations and so why even bother. For example, there were cars to hack, talks, and even a capture the flag event.

Automotive 52

Automotive Operating Systems System Tools 52