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Android’s IPv6 Is Still Broken
I got into some interesting discussions about IPv6 on Twitter. Then someone asked if Android is getting DHCPv6 support in version 11 of the OS.
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The latest blog posts to take off on Hacker News. 239 posts.
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Why Is This Website Port Scanning Me?
Investigation of the practice of port scanning site visitors for fingerprinting and tracking.
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SSH Agent Explained
The SSH agent acts behind the scenes to keep you safe. Here's how it works.
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A Google Cloud support engineer solves a tough DNS case
How a Google Cloud support engineer found one customer’s missing DNS packets
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The CPU Cost of Networking on a Linux Host
When evaluating networking for a host the focus is typically on latency, throughput or packets per second (pps) to see the maximum load a...
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What developers should know about TCP
Why do you need to place your servers geographically close to your users? One of the reasons is to achieve lower latencies. That makes a lot of sense when you are sending short bursts of data that should be delivered as quickly as possible. But what about large files, such as videos? Surely there is a latency penalty…
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Building a subsea cable to better connect Africa
Connectivity is at the heart of our mission to give people the power to build community. We are committed to bringing more people online to a faster internet — and with 3.5 billion people globally …
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Cross-signing and end-to-end encryption by default
Matrix, the open protocol for secure decentralised communications
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Dissecting an SSL Certificate (2017)
Dissecting an SSL certificate
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Ad blocking with Raspberry Pi and Pi-hole
Learn how to use your Raspberry Pi for ad-blocking with Pi-hole and enjoy a distraction-free browsing experience on the Web and other services. Just a simple installation away!
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Why Zoom Chose Oracle
This post analyzes why Zoom chose Oracle as its new cloud infrastructure provider.
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Google Meet premium video meetings–free for everyone
To help businesses, schools, and others navigate remote work and life, we're making our premium video conferencing solution free for all.
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DigitalOcean VPC
Helping millions of developers easily build, test, manage, and scale applications of any size - faster than ever before.
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Building a WireGuard jail with FreeBSD's standard tools
Recently, I had an opportunity to build a WireGuard jail on a FreeBSD 12.1 host. As it was really quick and easy to setup and it has been working completely fine for a month, I’d like to share my experience with anyone interested in this topic. I would like to use WireGuard app on my Android phone to access my home…
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WireGuard on K8s: road-warrior-style VPN server
Road-warrior-style VPN server
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How does a TCP Reset Attack work?
A TCP reset attack is executed using a single packet of data, no more than a few bytes in size. A spoofed TCP segment, crafted and sent by an attacker, tricks two victims into abandoning a TCP connection, interrupting possibly vital communications between them.
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Beginners guide to gateways and proxies
Have you heard of gateways, proxies, load balancer, API gateways? This article explains what gateways are, what is their purpose and how they work with pract...
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An Android 8.0-9.0 Bluetooth Zero-Click RCE
Nowadays, Bluetooth is an integral part of mobile devices. Smartphones interconnect with smartwatches and wireless headphones. By default, most devices are configured to accept Bluetooth connections from any nearby unauthenticated device. Bluetooth packets are processed by the Bluetooth chip (also called a…
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What end-to-end encryption should look like
Check out our progress in end-to-end encryption calls in Jitsi. Give us your crypto knowledge feedback with the code and learn how to demo it here.
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You’ve Got 0-Click Mail: Unassisted iOS Attacks RCE via Mobilemail/Maild
October is Cybersecurity Awareness Month! How is your cybersecurity practice going?
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Netflix now supports TLS 1.3
By Sekwon Choi
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BGP and RPKI
We have been receiving occasional notifications, primarily via twitter from concerned customers who have visited 'isbgpsafeyet.com' and been told by the site's operator, Cloudflare, that their ISP is, apparently unsafe.
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What happens when a ccTLD is retired? Exploring the potential risks of .io
Could the complex political history of Diego Garcia put the .io domain at risk? Tech firms should be aware of potential risk to their websites.
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Comparing HTTP/3 vs. HTTP/2 Performance
We announced support for HTTP/3, the successor to HTTP/2, during Cloudflare’s birthday week last year. Our goal is and has always been to help build a better Internet. Even though HTTP/3 is still in draft status, we've seen a lot of interest from our users.
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ActivityPub Could Be the Future
You’ve heard of stuff like Twitter, Facebook, and Instagram. Make an account on one, and it only works there. You can’t send a DM to your friend on Twitter from Facebook Messenger. You can’t browse your friend’s Instagram feed from Twitter. Each one is closed off