RHEL 9.0, the latest major release of Red Hat Enterprise Linux, delivers tighter security, as well as improved installation, distribution, and management for enterprise server and cloud environments.The operating system, code named Plow, is a significant upgrade over RHEL 8.0 and makes it easier for application developers to test and deploy containers.Available in server and desktop versoins, RHEL remains one of the top Linux distributions for running enterprise workloads because of its stability, dependability, and robustness. To read this article in full, please click here
Most IT executives are probably familiar with the concepts of DevOps and DevSecOps. There’s a new model generating considerable buzz that is particularly relevant to networking professionals: NetDevOps.As with other emerging technologies, the definition of NetDevOps varies depending on who is providing it. But at a basic level, the term refers to the application of DevOps principles to computer networking.“NetDevOps is a pretty hot [and] hyped topic,” says Andrew Lerner, research vice president for networking at Gartner. “But the first question is, what is it, as there are different definitions and perceptions.”How to choose an edge gateway
What is NetDevOps?
Under the Gartner definition, NetDevOps entails applying the DevOps concepts of continuous integration/continuous deployment (CI/CD) to networking activities. Other terms used to describe this model include NetOps 2.0, network as code and GitOps networking, Lerner says.To read this article in full, please click here
RHEL 9.0, the latest major release of Red Hat Enterprise Linux, delivers tighter security, as well as improved installation, distribution, and management for enterprise server and cloud environments.The operating system, code named Plow, is a significant upgrade over RHEL 8.0 and makes it easier for application developers to test and deploy containers.Available in server and desktop versoins, RHEL remains one of the top Linux distributions for running enterprise workloads because of its stability, dependability, and robustness. To read this article in full, please click here
File names on Linux systems can be as long as 255 characters. While determining which files in a directory have the longest names might not be the most exciting task at hand, doing this with a script poses some interesting challenges that invite equally interesting solutions.To start, consider passing the output of the ls command, which is used to list files, to a wc command that counts the characters like this:$ ls myreport.txt | wc -c
13
If you counted the letters in “myreport.txt” by looking at “myreport.txt”, you likely noticed that there are 12, not 13 letters in that file name. This is because, just as in the command below, echo sends the requested text through the pipe along with a newline character at the end.To read this article in full, please click here
File names on Linux systems can be as long as 255 characters. While determining which files in a directory have the longest names might not be the most exciting task at hand, doing this with a script poses some interesting challenges that invite equally interesting solutions.To start, consider passing the output of the ls command, which is used to list files, to a wc command that counts the characters like this:$ ls myreport.txt | wc -c
13
If you counted the letters in “myreport.txt” by looking at “myreport.txt”, you likely noticed that there are 12, not 13 letters in that file name. This is because, just as in the command below, echo sends the requested text through the pipe along with a newline character at the end.To read this article in full, please click here
The Great Re-Evaluation has brought a renewed focus on hiring practices. Candidates expect more from the entire interview, hiring, and onboarding process.
Cloudflare operates in more than 270 cities in over 100 countries, where we interconnect with over 10,000 network providers in order to provide a broad range of services to millions of customers. The breadth of both our network and our customer base provides us with a unique perspective on Internet resilience, enabling us to observe the impact of Internet disruptions. In many cases, these disruptions can be attributed to a physical event, while in other cases, they are due to an intentional government-directed shutdown. In this post, we review selected Internet disruptions observed by Cloudflare during the second quarter of 2022, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools, and grouped by associated cause or common geography.
Optic outages
This quarter, we saw the usual complement of damage to both terrestrial and submarine fiber-optic cables, including one that impacted multiple countries across thousands of miles, and another more localized outage that was due to an errant rodent.
Comcast
On April 25, Comcast subscribers in nearly 20 southwestern Florida cities experienced an outage, reportedly due to a fiber cut. The traffic impact of this cut is clearly visible in the graph below, with Cloudflare traffic Continue reading
Last year during CIO week, we announced Page Shield in general availability. Today, we talk about improvements we’ve made to help Page Shield users focus on the highest impact scripts and get more value out of the product. In this post we go over improvements to script status, metadata and categorization.
What is Page Shield?
Page Shield protects website owners and visitors against malicious 3rd party JavaScript. JavaScript can be leveraged in a number of malicious ways: browser-side crypto mining, data exfiltration and malware injection to mention a few.
For example a single hijacked JavaScript can expose millions of user’s credit card details across a range of websites to a malicious actor. The bad actor would scrape details by leveraging a compromised JavaScript library, skimming inputs to a form and exfiltrating this to a 3rd party endpoint under their control.
Today Page Shield partially relies on Content Security Policies (CSP), a browser native framework that can be used to control and gain visibility of which scripts are allowed to load on pages (while also reporting on any violations). We use these violation reports to provide detailed information in the Cloudflare dashboard regarding scripts being loaded by end-user browsers.
The Catalyst8000v is Cisco’s virtual version of the Catalyst 8000 platform. It is the go to platform and a replacement of previous products such as CSR1000v, vEdge cloud, and ISRV. When installing a Catalyst8000v, it comes with a builtin shaper setting the maximum throughput to 10 Mbit/s as can be seen below:
R1#show platform hardware throughput level
The current throughput level is 10000 kb/s
This is most likely enough to perform labbing but obviously not enough to run production workloads. You may be familiar with Smart Licensing on Cisco. Previously, licensing was enforced and it wasn’t possible to modify throughput without first applying a license to a device. In releases 17.3.2 and later, Cisco started implementing Smart Licensing Using Policy which essentially means that most of the licenses are trust-based and you only have to report your usage. There are exceptions, such as export-controlled licenses like HSEC which is for high speed crypto, anything above 250 Mbit/s of crypto. To modify the maximum throughput of Catalyst8000v, follow these steps:
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#platform hardware throughput level MB ?
100 Mbps
1000 Mbps
10000 Mbps
15 Mbps
25 Mbps
250 Mbps
2500 Continue reading
As businesses digitally transform and undertake process optimization projects, IT can help address records management by building in records compliance and classification and automating a standardized retention and disposal schedule for them.
After writing quite long and complicated previous blogpost about CI/CD with GitHub, I need some therapy to write something light and chill. I decided to choose the setup of the working space for development and utilisation of the network automation and, in general, network design and operations. Though I don’t pretend to be absolutely objective and unbiased, as it is simply not possible, I intend to share some observations I did from my own experience and discussions with our network automation students, which I hope will be interesting for you.
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Why Is It Important?
During our Zero-to-Hero Network Automation Trainings, and other trainings as well, we talk a lot about choice of tools to build automation solutions: they shall be fit for purpose and easy to use. However, in addition to that, you should also feel a fun, when you utilise them. It may sound odd, as we are Continue reading
This post originally appeared on the Packet Pushers’ Ignition site on July 9, 2019. Premise: I would be cautious about a vendor who sells security as a product or a critical/primary feature. Security-as-a-product is coming to an end. We need to return to making the things we already have work efficiently. There is only so […]
If only I had known how hard it was to say “no” to someone. Based on the response that my post about declining things had gotten I’d say there are a lot of opinions on the subject. Some of them were positive and talked about how hard it is to decline things. Others told me I was stupid because you can’t say no to your boss. I did, however, get a direct message from Paul Lampron (@Networkified) that said I should have a follow up post about saying yes in a responsible manner.
Let me give you a quick personal example. I was raised with a southern style mentality that involves not just coming out and asking for something. You Continue reading
Here’s a short list of recent technical blog posts to give you something to read today.
Internet Explorer, we hardly knew ye
Microsoft has announced the end-of-life for the venerable Internet Explorer browser. Here we take a look at the demise of IE and the rise of the Edge browser. And we investigate how many bots on the Internet continue to impersonate Internet Explorer versions that have long since been replaced.
Live-patching security vulnerabilities inside the Linux kernel with eBPF Linux Security Module
Looking for something with a lot of technical detail? Look no further than this blog about live-patching the Linux kernel using eBPF. Code, Makefiles and more within!
Hertzbleed explained
Feeling mathematical? Or just need a dose of CPU-level antics? Look no further than this deep explainer about how CPU frequency scaling leads to a nasty side channel affecting cryptographic algorithms.
Early Hints update: How Cloudflare, Google, and Shopify are working together to build a faster Internet for everyone
The HTTP standard for Early Hints shows a lot of promise. How much? In this blog post, we dig into data about Early Hints in the real world and show how much faster the web is with it.
HP Enterprise says it will deliver a series of servers powered by the Arm-based Altra and Altra Max by Ampere, the CPU startup run by former Intel executive Renee James.Ampere, not to be confused with the GPU processor of the same name from Nvidia, has scored some wins with cloud providers, notably Microsoft Azure and Oracle Cloud Infrastructure, but it had yet to land in OEM partner. Until now.Starting in Q3 2022, HPE says it will ship ProLiant RL300 Gen11 servers, available for both outright purchase and for leasing through HPE’s GreenLake consumption model. HPE says this will be the first in a series of HPE ProLiant RL Gen11 servers using 80-core Altra and 128-core Altra Max processors.To read this article in full, please click here
Why the heck would a hardware and chip company like Broadcom buy a software company like VMware?Wall Street and industry analysts haven't exactly jumped with joy over the pending deal, after all. Companies sometimes do stupid things; that seems to be the consensus. But with this deal, that may not be the case at all. Broadcom may be responding to the fundamental shifts in the industry, both in computing and in networking.
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