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The curious case of the Raspberry Pi in the network closet
Personal Blog of Christian Haschek
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VPN – Very Precarious Narrative
A very long article about commercial VPNs, their marketing strategies, and the truth behind their privacy and security claims.
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The “mail is hard” myth
TL;DR: - Mail is not hard: people keep repeating that because they read it, not because they tried it - Big Mailer Corps are quite happy with that myth, it keeps their userbase growing - Big Mailer Corps control a large percentage of the e-mail address space which is good for none of us - It's ok that people have…
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The Ripe NCC Has Run Out of IPv4 Addresses
This archive is retained to ensure existing URLs remain functional. It will not contain any emails sent to this mailing list after July 1, 2024. For all messages, including those sent before and after this date, please visit the new location of the archive at https://mailman.ripe.net/archives/list/ripe-list@ripe.net/
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SSH Handshake Explained
Secure Shell (SSH) is a widely used Transport Layer Protocol to secure connections between clients and servers. In this post we explain how SSH handshake works.
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Turn off DoH, Firefox
Affordable VM hosting in Glarus, Switzerland, operated by 100% hydropower. Devuan, debian, freebsd, ubuntu, centos. Our tech stack is fully open source.
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HAProxy 2.0
HAProxy Technologies is excited to announce the release of HAProxy 2.0, bringing features critical for cloud-native and containerized environments.
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Building an LTE Access Point with a Raspberry Pi
In one of my last experiments I replaced my crappy T-Mobile (now Magenta) 4G modem/access point with an OpenWRT-based cheap travel router and a 4G USB LTE modem. That doubled my speed over the wireless (WLAN) network but the setup was limited by the outdated and under-powered travel rooter. So I got myself a cheap…
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Twitter, Facebook, WhatsApp and Instagram Restricted in Southern Turkey
Network data from the NetBlocks internet observatory confirm that Turkey has blocked access to social media and messaging platforms in the southern cities of Gaziantep, Şanlıurfa and Hatay, as the ...
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Reasons to turn down the transmit power of your Wi-Fi (2017)
By default almost all WiFi access points transmit at full power (100mW on 2.4GHz). This gives maximum coverage and users see a good signal ("full bars"). However, there are good reasons to turn down the transmit power to a fraction of the maximum.
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Mozilla is giving up on their IRC server
Let’s lead with the punchline: the question of what comes after IRC, for Mozilla, is now on my desk.
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VPN⁰: A Privacy-Preserving Distributed VPN
This research presents VPN⁰, the first distributed virtual private network offering a privacy preserving traffic authorization and validation mechanism.
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How does Apple privately find offline devices?
At Monday’s WWDC conference, Apple announced a cool new feature called “Find My”. Unlike Apple’s “Find my iPhone”, which uses cellular communication and the lost…
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Let’s Encrypt to transition to ISRG root
Let's Encrypt have announced that on July 8th, 2019 they will begin issuing new certificates from their own intermediate CA and not their current cross-signed intermediate. Here's what that means and what action, if any, site operators need to take…
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HTTP/3: from root to tip
Explore HTTP/3 from root to tip and discover the backstory of this new HTTP syntax that works on top of the IETF QUIC transport.
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Matrix 1.0 – Are We Ready Yet?
Matrix, the open protocol for secure decentralised communications
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Welcoming Mozilla to Matrix
Matrix, the open protocol for secure decentralised communications
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The Nintendo Switch Switch
Yesterday I had the idea that it would be cool if I turned a Nintendo Switch (will be referred to as NX to avoid confusion as NX is the code name for the Nintendo Switch ) console into an actual network switch. I thought about it a bit and realized that it would be doable in hardware at least, since the NX docking…
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Technology Preview: Signal Private Group System
Groups are inherently social, and Signal is a social app. Whether you’re planning a surprise party, discussing last night’s book club meeting, exchanging photos with your family, or organizing something important, group messaging has always been a key feature of Signal. Signal provides private gr...
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I scanned Austria
Personal Blog of Christian Haschek
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JMAP: Like IMAP but Not Really
With the new year upon us, I decided it was time to do something ambitious for my Open Source project. This is where I normally quip about never mentioning my project before, even though I literall…
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ICANN Calls for DNSSEC for All Domains Following Domain Hijacking Attempts
Announcement that the Internet Corporation for Assigned Names and Numbers (ICANN) believes there is an ongoing and significant risk to key parts of the Domain Name System (DNS) infrastructure and is calling for the full deployment of the Domain Name System Security Extensions (DNSSEC) across all unsecured domain names.
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Web Developer's Guide to DNS
Every developer should know the basics of DNS, the critical protocol at the heart of the web.
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