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Weekend Reads 042922


Our current encryption standards protect our bank accounts, financial markets, and most of our infrastructure, not to mention the logistics/supply-chain management system in the US Defense Department. But what happens when quantum computers can decipher the current asymmetric encryption that protects our vital systems?


Local governments all over the country are choosing ISP partners and making grants from ARPA funds to help bring better broadband. Today’s blog is a warning to handle the awards of such monies in a way as to be safe from challenges from ISPs you don’t choose to fund.


In a resounding victory for companies whose business model depends on web scraping, the U.S. Ninth Circuit Court of Appeals held this week that such activity does not violate the U.S. Computer Fraud and Abuse Act.


OpenTelemetry is considered by many the future of instrumentation, and it’s not hard to understand why. In a world where successful companies are software companies, the need to collect observations from running code is almost universal. Through metrics, logs, and traces, observability data gives us the information we need to inspect how our applications run—and thanks to projects like OpenTelemetry, observability is becoming accessible to everyone.


Organizations using newer Continue reading

Heavy Networking 628: Pluribus Extends Its SDN Fabric To SmartNICs/DPUs

On today's sponsored Heavy Networking podcast we talk to Pluribus Networks. Pluribus can extend networking and security services directly to smartNICs/DPUs via its Unified Cloud Fabric to improve performance, visibility, and security. We talk with Mike Capuano and Alessandro Barbieri from Pluribus on how it all works.

The post Heavy Networking 628: Pluribus Extends Its SDN Fabric To SmartNICs/DPUs appeared first on Packet Pushers.

DHCP puzzle: Why does the pool of IP addresses freeze?

Dynamic host-configuration protocol (DHCP) has a lot of benefits, including saving time by assigning IP addresses and other attributes to networked devices rather than IT pros having to do it manually.Sometimes, though, problems arise that eat up time in a different way. This is one such case affecting Cisco Catalyst 6500 and 9600 Layer 3 chassis switches used as distribution switches for the network, with different groups of buildings linked to them. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

The Cloudflare network now spans 275 cities

The Cloudflare network now spans 275 cities
The Cloudflare network now spans 275 cities

It was just last month that we announced our network had grown to over 270 cities globally. Today, we’re announcing that with recent additions we’ve reached 275 cities. With each new city we add, we help make the Internet faster, more reliable, and more secure. In this post, we’ll talk about the cities we added, the performance increase, and look closely at our network expansion in India.

The Cities

Here are the four new cities we added in the last month: Ahmedabad, India; Chandigarh, India; Jeddah, Saudi Arabia; and Yogyakarta, Indonesia.

A closer look at India

India is home to one of the largest and most rapidly growing bases of digital consumers. Recognising this, Cloudflare has increased its footprint in India in order to optimize reachability to users within the country.

Cloudflare’s expansion in India is facilitated through interconnections with several of the largest Internet Service Providers (ISPs), mobile network providers and Internet Exchange points (IXPs). At present, we are directly connected to the major networks that account for more than 95% of the country’s broadband subscribers. We are continuously working to not only expand the interconnection capacity and locations with these networks, but also establish Continue reading

Practical Python For Networking: 6.4 – Run Package Example – Video

Now that you’ve learned how to put together a package, this lesson shows you how to call that package in a script. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network […]

The post Practical Python For Networking: 6.4 – Run Package Example – Video appeared first on Packet Pushers.

5 reasons restores can take longer than backups

It comes as a big surprise to many people when their restores are slower than their backups, but it should be no surprise at all. In fact, everyone should plan for this disparity and build into their backup design.There are a number of reasons why restore speeds are typically slower than backup, and here is an explanation of five of them. [ Get regularly scheduled insights by signing up for Network World newsletters. ] The RAID write penalty Most modern disk arrays are built using parity-based redundant array of independent disks (RAID)—RAID levels 3 to 6. Others are built using erasure coding, which has a similar challenge as parity-based RAID.To read this article in full, please click here

5 reasons restores can take longer than backups

It comes as a big surprise to many people when their restores are slower than their backups, but it should be no surprise at all. In fact, everyone should plan for this disparity and build into their backup design.There are a number of reasons why restore speeds are typically slower than backup, and here is an explanation of five of them. [ Get regularly scheduled insights by signing up for Network World newsletters. ] The RAID write penalty Most modern disk arrays are built using parity-based redundant array of independent disks (RAID)—RAID levels 3 to 6. Others are built using erasure coding, which has a similar challenge as parity-based RAID.To read this article in full, please click here

Secret Management with HashiCorp Vault

Secret Management with HashiCorp Vault
Secret Management with HashiCorp Vault

Many applications these days require authentication to external systems with resources, such as users and passwords to access databases and service accounts to access cloud services, and so on. In such cases, private information, like passwords and keys, becomes necessary. It is essential to take extra care in managing such sensitive data. For example, if you write your AWS key information or password in a script for deployment and then push it to a Git repository, all users who can read it will also be able to access it, and you could be in trouble. Even if it's an internal repository, you run the risk of a potential leak.

How we were managing secrets in the service

Before we talk about Vault, let's take a look at how we've used to manage secrets.

Salt

We use SaltStack as a bare-metal configuration management tool. The core of the Salt ecosystem consists of two major components: the Salt Master and the Salt Minion. The configuration state is owned by Salt Master, and thousands of Salt Minions automatically install packages, generate configuration files, and start services to the node based on the state. The state may contain secrets, such as passwords and API Continue reading

Practical Python For Networking: 6.3 – Making A Simple Package Example – Video

This lesson walks through the creation of a simple package. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python Networking and Distributed […]

The post Practical Python For Networking: 6.3 – Making A Simple Package Example – Video appeared first on Packet Pushers.

Using LEOs and GEOs

Once you head off the main roads your Internet connectivity options are often pretty limited. However, things are improving, and in Australia you can use an Internet service based on a connection through a geostationary satellite connection or you could sign up for Starlink, a Low Earth Orbit service. Both services offer decent capacity, but there are some some other critical differences going on here. Let's look at these services using a custom test rig to put them through their paces.

Extreme Networks: Supply chain-woes, backlogs, higher prices

Supply chain issues continue to drive networking equipment prices up and impact delivery schedules but despite them, Extreme Networks reported solid product revenue this week.Extreme said its Q3 results were its fifth consecutive quarter of double-digit product revenue growth—$285.5 million, up 13% year-over-year—driven by sales in its cloud, universal-switching platforms, and Wi-Fi 6E access points. Competitor Juniper Networks reported solid results this week, too, saying it had a fourth consecutive quarter of double-digit year over year growth in cloud, but also enterprise business growth of nearly 20% year over year.Wi-Fi 6E: When it’s coming, what it’s good for While Extreme's results are solid, its backlog of orders is growing substantially, up $130 million just in Q3, with a total backlog of $425 million, largely due to industry-wide semiconductor supply-chain issues. More than half of that consists of the company's latest generation products, according to Extreme's presideint and CEO Ed Meyercord.To read this article in full, please click here

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