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Category Archives for "Networking"

Intel is shipping the next generation of Xeon Scalable processors

After almost a year and a half of delays, Intel has begun to ship its 4th Generation Xeon Scalable processors, code-named Sapphire Rapids, to customers, and it has set January 10, 2023 as the formal launch date.The launch is a formality because, according to an Intel spokesperson, the new Xeons are already shipping to customers—OEMs—now, but it falls to those OEMs to announce their product release plans.CEO Pat Gelsinger said during the company’s earnings call last week that the company was ramping up production for launch and that he expected the new Xeons to see the fastest ramp to one million units ever.The challenge for Intel wasn’t in design, it was manufacturing. This will be the first generation of chips using Intel 7 fabrication, an advanced 10nm design that took years to get right.To read this article in full, please click here

Announcing Networking and Advanced Security Enhancement in NSX 4.0.1.1

We’re thrilled to announce the general availability of VMware NSX 4.0.1.1, another exciting release with updates in networking, security, and operations for private, public, and multi-clouds.

With this release, VMware NSX customers will be able to leverage accelerated NSX networking and security performance, enhanced network observability, and new network monitoring and troubleshooting features for increased flexibility.

NSX 4.0.1.1 will also deliver enhanced threat detection and prevention capabilities, helping customers bolster network defenses to block advanced threats from moving laterally across multi-cloud environments.

Read on to get the details on our latest NSX release.

Distributed Malware Prevention

The NSX Distributed Firewall has added malware detection and prevention support for Linux guest endpoints (VMs). Linux has become the most common operating system across multi-cloud environments, powering more than 78% of the most popular websites. With the recent emergence of more Linux-specific threats, and current malware countermeasures being mostly focused on addressing Windows-based threats, there is an imperative to address the specific security needs of Linux machines. Adding Linux to our prevention solution enables the NSX Distributed Firewall to provide more effective prevention coverage and fewer false positives across multi-cloud environments.

In addition, we expanded the Continue reading

Enhanced NSX Edge and Networking Services in NSX 4.0.1.1

VMware NSX 4.0.1.1 introduces exciting new capabilities and enhancements for virtualized networking and security for private, public, and multi-clouds. Check out the release blog for an overview of the new features.

Among these new features is NSX Gateway Stateful Active/Active Services. This feature delivers a key security enhancement, giving you the full power of the NSX Edge cluster for your services without worrying about bandwidth and CPU limitations. In this blog post, we’ll cover all the terminology you need to know for this new feature, as well as configuration and architecture, and design considerations.

Stateful Active/Active Services

Prior to VMware NSX 4.0.1.0, configuring NSX using any of the variety of NSX services offered by VMware required you to set up NSX Edge Gateways in Active/Standby High Availability mode. Under this configuration, traffic is forwarded through a single (Active) NSX Edge Node. So, when designing the architecture, you needed to be aware of the limits imposed by the Active/Standby mode on the bandwidth and CPU (Central Processing Unit) utilization of the node.

With the NSX 4.0.1.0 release of NSX Stateful Active/Active Services, this consideration no longer applies. This new feature makes it Continue reading

Tech Bytes: Why SASE Is An Architecture, Not A Product (Sponsored)

Today on the Tech Bytes podcast, we’ll be investigating Secure Access Service Edge, or SASE, including the current state of the market and how SASE is evolving. We’ll also look at how sponsor Juniper Networks is moving into the SASE space. Our guest is Kate Adam, Sr. Director of Security Product Marketing at Juniper Networks.

The post Tech Bytes: Why SASE Is An Architecture, Not A Product (Sponsored) appeared first on Packet Pushers.

Network Break 406: Gluware Adds API Modeling To Network Automation; Arista Revenues Rise

This week's Network Break covers new features in Gluware and Aviatrix, new servers from HPE, and new partner specializations from Cisco. We also cover financial results from Fortinet and Arista and Russian threats against commercial satellites.

The post Network Break 406: Gluware Adds API Modeling To Network Automation; Arista Revenues Rise appeared first on Packet Pushers.

Adventures in Upgrading Netbox

I’ve been using Netbox for a while now, and, frankly, I can’t live without it. If you’ve never heard of it, it’s a Source of Truth for your network automation tasks started by Jeremy Stretch. I use it to document my networks (hardware inventory, subnets, physical connections, etc.), which provides my automation tasks a place to pull and push all sorts of information like management IPs, rack locations, power connections, network drops…the list goes on. In better words, your automation tools can ask Netbox what the state of your network is, and send it an update if that tool discovers something different. There are plenty of better places to discuss the benefits of a Souce of Truth, so just do the Googles for it.

My production instance is running Netbox 2.7.6, which is very old. The latest version of Netbox as of today is 3.3.7, so that should tell you how far behind we are. I’ve had mine running for over two years, and, in the meantime, the world has moved forward. If I update the server it’s running on (Ubuntu 20.04), then Netbox breaks. Yes, it’s so far behind Continue reading

3 ways to reach the cloud and keep loss and latency low

Adoption of public cloud IaaS platforms like AWS and Azure, and PaaS and SaaS solutions too, has been driven in part by the simplicity of consuming the services: connect securely over the public internet and start spinning up resources. But when it comes to communicating privately with those resources, there are challenges to address and choices to be made.The simplest option is to use the internet—preferably an internet VPN—to connect to the enterprise’s virtual private clouds (VPC) or their equivalent from company data centers, branches, or other clouds.However, using the internet can create problems for modern applications that depend on lots of network communications among different services and microservices. Or rather, the people using those applications can run into problems with performance, thanks to latency and packet loss.To read this article in full, please click here

Continuity is Not Recovery

It was a long weekend for me but it wasn’t quite as long as it could have been. The school district my son attends is in the middle of a ransomware attack. I got an email from them on Friday afternoon telling us to make sure that any district-owned assets are powered off until further notice to keep our home networks from being compromised. That’s pretty sound advice so we did it immediately.

I know that the folks working on the problem spent the whole weekend trying to clean it up and make sure there isn’t any chance of getting reinfected. However, I also wondered how that would impact school this week. The growing amount of coursework that happens online or is delivered via computer is large enough that going from that to a full stop of no devices is probably jarring. That got me to thinking once more about the difference between continuity and recovery

Keeping The Lights On

We talk about disaster recovery a lot. Backups of any kind are designed to get back what was lost. Whether it’s a natural disaster or a security incident you want to be able to recover things back to the way Continue reading

Adventures in Upgrading Netbox

I’ve been using Netbox for a while now, and, frankly, I can’t live without it. If you’ve never heard of it, it’s a Source of Truth for your network automation tasks started by Jeremy Stretch. I use it to document my networks (hardware inventory, subnets, physical connections, etc.), which provides my automation tasks a place to pull and push all sorts of information like management IPs, rack locations, power connections, network drops…the list goes on. In better words, your automation tools can ask Netbox what the state of your network is, and send it an update if that tool discovers something different. There are plenty of better places to discuss the benefits of a Souce of Truth, so just do the Googles for it.

My production instance is running Netbox 2.7.6, which is very old. The latest version of Netbox as of today is 3.3.7, so that should tell you how far behind we are. I’ve had mine running for over two years, and, in the meantime, the world has moved forward. If I update the server it’s running on (Ubuntu 20.04), then Netbox breaks. Yes, it’s so far behind Continue reading

Integer handling is broken

Floating point can be tricky. You can’t really check for equality, and with IEEE 754 you have a bunch of fun things like values of not a number, infinities, and positive and negative zero.

But integers are simple, right? Nope.

I’ll use “integers” to refer to all integer types. E.g. C’s int, unsigned int, gid_t, size_t, ssize_t, unsigned long long, and Java’s int, Integer, etc…

Let’s list some problems:

What’s wrong with casting?

Casting an integer from one type to another changes three things:

  1. The type in the language’s type system.
  2. Crops values that don’t fit.
  3. May change the semantic value, by changing sign.

The first is obvious, and is even safe for the language to do implicitly. Why even bother telling the human that a conversion was done?

But think about the other two for a minute. Is there any reason that you want your Continue reading

Weekend Reads 110422


The recent rise of HTTP request smuggling has seen a flood of critical findings enabling near-complete compromise of numerous major websites. However, the threat has been confined to attacker-accessible systems with a reverse proxy front-end… until now.


Eternity typically keeps its activities on the down low—in the Dark Web. Still, we sought to determine if LilithBot and Eternity also engaged in dealings on the Surface Web.


The Financial Conduct Authority, the UK’s financial services regulator, has begun discussions with the aim of understanding the impact of Big Tech on industry competition.


You really shouldn’t be trying to manage your own passwords when high-performance graphics cards featuring GPUs as powerful as Nvidia’s GeForce RTX 4090 could be in use by hackers.


The U.S. Federal Trade Commission enforcement action against Drizly demonstrates how the agency plans to give teeth to its new emphasis on data minimization.


In October 2020, the Global Privacy Control was created to allow consumers to exercise their privacy rights with the click of a mouse.


Finding new ways to collect information about a network and limit the meta-data exposed to others is a constant struggle we see in research as this data can be used for both Continue reading

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