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Category Archives for "Networking"

Must-know Linux Commands

It takes some time working with Linux commands before you know which one you need for the task at hand, how to format it and what result to expect, but it’s possible to speed up the process.To read this article in full, please click here(Insider Story)

Campus design feature set-up : Part 3

We’ve said it before but since it’s important we’ll say it again. Shared knowledge makes for a stronger ecosystem! With this in mind, I’m showing you how to set up the CL 3.7.5 campus feature: Multi-Domain Authentication in a 6-part blog series.

In this series we’re covering it all: Wired MAC Authentication using Aruba ClearPass, Multi-Domain Authentication using Aruba ClearPass, Wired 802.1x using Cisco ISE, Wired MAC Authentication using Cisco ISE, and Multi-Domain Authentication using Cisco ISE.

This third guide is how to enable Multi-Domain Authentication in Cumulus Linux 3.7.5 + using Aruba ClearPass 6.7.x.

Keep in mind that this step-by-step guide assumes that you have already performed an initial setup of Aruba ClearPass and read the following Wired 802.1x using Aruba ClearPass and Wired MAC Authentication using Aruba ClearPass.

Over the past year, Cumulus Networks has made a concerted effort to expand the breadth and scope of the campus features within Cumulus Linux. Hot off the press in 3.7.5 is one of those features, Multi-Domain Authentication (MDA).

Classically, MDA allows for a voice VLAN and data VLAN to be configured independently on the same switch port for a VoIP Continue reading

BrandPost: Measuring the edge: Finding success with edge deployments

Edge computing deployments are well underway as companies seek to better process the wealth of data being generated, for example, by Internet of Things (IoT) devices.So, what are the results? Plus, how can you ensure success with your own edge projects?Measurements of successThe use cases for edge computing deployments vary widely, as do the business drivers and, ultimately, the benefits.Whether they’re seeking improved network or application performance, real-time data analytics, a better customer experience, or other efficiencies, enterprises are accomplishing their goals. Based on two surveys — one by Automation World and another by Futurum Research — respondents have reported:To read this article in full, please click here

Interview with John Kindervag, the Godfather of Zero Trust Networking

Last month, I had the pleasure of spending a few minutes with John Kindervag, the industry-described “Godfather” and thought leader behind Zero Trust Networking. John developed these concepts during his tenure as Vice President and Principal Analyst at Forrester Research. Zero Trust, rooted in the principle of “never trust, always verify,” is primarily designed to …

Continue reading "Interview with John Kindervag, the Godfather of Zero Trust Networking"

History of MIME with Nathaniel Borenstein

On this episode of the History of Networking, Donald and I are joined by Nathaniel Borenstein, who is the primary author of the original MIME specifications.

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

Heavy Networking 446: How Open Systems Integrates Security And SD-WAN As A Service

Open Systems integrates security and SD-WAN as a service, including next-gen firewalls and Web gateways. They're the sponsor for today's Heavy Networking podcast. We discuss Open Systems' architecture, how it applies SD-WAN and security policies to traffic, and how Open Systems differentiates itself in this crowded market.

The post Heavy Networking 446: How Open Systems Integrates Security And SD-WAN As A Service appeared first on Packet Pushers.

Commentary: We’re stuck with 40 years old technology

One of my readers sent me this email after reading my Loop Avoidance in VXLAN Networks blog post:

Not much has changed really! It’s still a flood/learn bridged network, at least in parts. We count 2019 and talk a lot about “fabrics” but have 1980’s networks still.

The networking fundamentals haven’t changed in the last 40 years. We still use IP (sometimes with larger addresses and augmentations that make it harder to use and more vulnerable), stream-based transport protocol on top of that, leak addresses up and down the protocol stack, and rely on technology that was designed to run on 500 meters of thick yellow cable.

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How to shop for enterprise firewalls

Firewalls have been around for years, but the technology keeps evolving as the threat landscape changes. Here are some tips about what to look for in a next-generation firewall (NGFW) that will satisfy business needs today and into the future.Don't trust firewall performance stats Understanding how a NGFW performs requires more than looking at a vendor’s specification or running a bit of traffic through it. Most firewalls will perform well when traffic loads are light. It’s important to see how a firewall responds at scale, particularly when encryption is turned on. Roughly 80% of traffic is encrypted today, and the ability to maintain performance levels with high volumes of encrypted traffic is critical.To read this article in full, please click here

How to shop for enterprise firewalls

Firewalls have been around for years, but the technology keeps evolving as the threat landscape changes. Here are some tips about what to look for in a next-generation firewall (NGFW) that will satisfy business needs today and into the future.Don't trust firewall performance stats Understanding how a NGFW performs requires more than looking at a vendor’s specification or running a bit of traffic through it. Most firewalls will perform well when traffic loads are light. It’s important to see how a firewall responds at scale, particularly when encryption is turned on. Roughly 80% of traffic is encrypted today, and the ability to maintain performance levels with high volumes of encrypted traffic is critical.To read this article in full, please click here

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