This post originally appeared in the Packet Pushers’ Human Infrastructure newsletter, a weekly mailing of essays, links to technical blogs and IT news, and whatever else think is interesting. Subscribe for free here. Let’s say I invent an autonomous mobile robot. It can lift heavy items for you, wash your dishes, do your grocery shopping, […]
The post Can We Trust Worldcoin’s Aspirin For AI Headaches? appeared first on Packet Pushers.
One of the goals of Cloudflare is to give our customers the necessary knobs to enable security in a way that fits their needs. In the realm of SSL/TLS, we offer two key controls: setting the minimum TLS version, and restricting the list of supported cipher suites. Previously, these settings applied to the entire domain, resulting in an “all or nothing” effect. While having uniform settings across the entire domain is ideal for some users, it sometimes lacks the necessary granularity for those with diverse requirements across their subdomains.
It is for that reason that we’re excited to announce that as of today, customers will be able to set their TLS settings on a per-hostname basis.
In an ideal world, every domain could be updated to use the most secure and modern protocols without any setbacks. Unfortunately, that's not the case. New standards and protocols require adoption in order to be effective. TLS 1.3 was standardized by the IETF in April 2018. It removed the vulnerable cryptographic algorithms that TLS 1.2 supported and provided a performance boost by requiring only one roundtrip, as opposed to two. For a user to benefit from Continue reading
Automation controller has a rich ReSTful API. REST stands for Representational State Transfer and is sometimes spelled as “ReST”. It relies on a stateless, client-server, and cacheable communications protocol, usually the HTTP protocol. REST APIs provide access to resources (data entities) via URI paths. You can visit the automation controller REST API in a web browser at: http://<server name>/api/
Many automation controller customers use the API to build their own event driven automation type solutions that draw data from their environment and then trigger jobs in the automation controller. This type of architecture can lead to incredibly high frequency and volume of requests to the controller API pushing controller’s API to the breaking point.
The API is the simplest and most straightforward way to interact with automation controller for any external system. These external systems and tools integrate with the automation controller API to mainly launch the jobs and get results about the jobs. Additionally, the inventory information is stored in an external system and pushed to the automation controller via API too. Given the fact that we have seen enterprises manage thousands of hosts via automation controller, the number of API calls Continue reading
3D printing is a popular activity among wireless network engineers. Given that they deal with invisible, intangible radio waves all day, maybe it's no surprise they'd enjoy making things they can touch and feel. On today's Heavy Wireless we talk about why the wireless community enjoys 3D printing, and how engineers can make and use printed objects on the job--and at home.
The post Heavy Wireless 008: 3D Printing For Wireless Engineers appeared first on Packet Pushers.
Broadcom has come up with some interesting mechanisms to address the challenges of building an Ethernet-based fabric that supports AI workloads. These mechanisms, which include a scheduling framework, cells, and credits, are intended to minimize congestion, latency, and dropped frames or packets in the fabric. In this post I talk about what I learned at […]
The post A Look At Broadcom’s Jericho3-AI Ethernet Fabric: Schedules, Credits, And Cells appeared first on Packet Pushers.
Deploy real-time network dashboards using Docker compose, describes how to quickly deploy a real-time network analytics stack that includes the sFlow-RT analytics engine, Prometheus time series database, and Grafana to create dashboards. This article describes how to extend the example using the Grafana Network Weathermap Plugin to display network topologies like the ones shown here.
Like other under-resourced organizations, schools face cyber attacks from malicious actors that can impact their ability to safely perform their basic function: teach children. Schools face email, phishing, and ransomware attacks that slow access and threaten leaks of confidential student data. And these attacks have real effects. In a report issued at the end of 2022, the U.S. Government Accountability Office concluded that schools serving kindergarten through 12th grade (K-12) reported significant educational impact and monetary loss due to cybersecurity incidents, such as ransomware attacks. Recovery time can extend from 2 all the way up to 9 months — that’s almost an entire school year.
Cloudflare’s mission is to help build a better Internet, and we have always believed in helping protect those who might otherwise not have the resources to protect themselves from cyberattack.
It is against this backdrop that we’re very excited to introduce an initiative aimed at small K-12 public school districts: Project Cybersafe Schools. Announced as part of the Back to School Safely: K-12 Cybersecurity Summit at the White House on August 8, 2023, Project Cybersafe Schools will support eligible K-12 public school districts with a package of Zero Trust cybersecurity solutions — for Continue reading
I’m currently preparing for a network rollout and the preparation includes assigning subnets to the sites. There are subnets needed for management, wired users, wireless users, guests, and so on. Once subnets have been assigned, for some of the subnets, DHCP scopes need to be created. The team managing the server has requested that information on the subnets, gateway, and what IP the scope begins and ends with be provided as a CSV file. This will allow for easily importing the scopes into the server.
For my scenario, I have the information in a spreadsheet and I’m accessing the information using the openpyxl project. I am then using the ipaddress library to take the prefix from the spreadsheet and performing various calculations. Why use Python for this?
The goal is to create a line of CSV that looks like this:
VLAN 100 User,192.0.2.64,255.255.255.192,192.0.2.65,192.0.2.75,192.0.2.126,US0100 NY,example.com,
This line consists of: