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The curious case of the Raspberry Pi in the network closet
Personal Blog of Christian Haschek
Strength in Numbers: An Entire Ecosystem Relies on Tor
If the Tor Project, the Tor network, and Tor Browser were to disappear, what would happen? Not only would millions of global, daily users lose access to Tor’s software, but the diverse ecosystem of privacy, security, and anti-censorship applications that rely on the Tor network would cease to function.
Is Your Cat 6 Cable a Dog? (2013)
Category 6 cables -- and to a lesser extent, Category 6a cables -- are widely available from a variety of vendors, including variety stores, office supply stores, consumer electronics stores, and online shops. While a great many people are content to run wireless networks in their homes, the fact is that if you need…
Why Telegram is insecure (2015)
Telegram, the encrypted messaging app loved by terrorists, has been in the news lately. Terrorists have long used existing commercial and…
Is there hope for IPv6?
Last year Georgia Tech’s Internet Governance Project teamed up with ICANN’s Office of the Chief Technology Officer to research the economic factors affecting the decisions of network operators to deploy Internet Protocol version 6 (IPv6). The study was commissioned because we both believe that the Internet community…
Happy Birthday, XMPP: 20th Anniversary of Jabber
Explore and join the Movim network
Apple knows 5G is about infrastructure, not mobile phones (2018)
5G is overkill for phones but that's okay because for carriers it is really about destroying broadcast and cable TV, ISPs, and telephone companies. One network to rule them all.
AdGuard DNS: A Privacy-Oriented DNS Server
AdGuard DNS: a privacy-oriented DNS service that blocks trackers and ads anywhere, from your PC and mobile devices to smart TV and IoT.
SSH Examples, Tips and Tunnels
Bounce through the network with SSH tunnels and proxies. Take your remote system administration skills to the next level with our practical SSH examples.
The Matrix.org 2018 year in review
Matrix, the open protocol for secure decentralised communications
LibreRouter: Powering community networks with free and open hardware
The LibreRouter project has developed an open source, open hardware router, customized to the needs of community-run networks.
Wireguard VPN: Typical Setup (2017)
I recently discovered the awesome Wireguard VPN tunnel and I was sold. Wireguard is a simple, kernel-based, state-of-the-art VPN that also happens to be ridiculously fast and uses modern cryptographic principles that all other highspeed VPN solutions lack.
CenturyLink is blocking customer internet, saying Utah legislators told them to
We've all experienced frustration with the internet going down. Now imagine how frustrated you'd be if you found out that your ISP intentionally blocked your internet access for the purpose of advertising their software; and better yet, your ISP claimed that state legislators required them to do it!...
Everything you should know about certificates and PKI but are too afraid to ask
Certificates and public key infrastructure (PKI) are hard. No shit, right? I know a lot of smart people who''ve avoided this particular rabbit hole. Eventually, I was forced to learn this stuff because of what it enables: PKI lets you define a system cryptographically. It''s universal and vendor-neutral yet poorly…
Mail Loop From Hell (2012)
One of those awesome 90ies computer stories...
Neither PWA nor AMP are needed to make a website load fast
Good performance practices are still needed when developing fast web experience.
O2 outage due to expired Ericsson certificate
Following network disturbances in a number of Ericsson’s (NASDAQ:ERIC) customer networks, Ericsson has taken immediate action to minimize impact and support the
The latest on Messages, Allo, Duo and Hangouts
We're sharing an update on Messages, Allo, Duo, and Hangouts
HTTPS in the real world
In cryptography, trust is mathematically provable. Everything else is just faith.
OpenBGPD – Adding Diversity to the Route Server Landscape
Thanks to the RIPE NCC Community Project Fund we were able to revive the OpenBGPD daemon and bring more diversity to the Route Server landscape.
AWS Transfer for SFTP – Fully Managed SFTP Service for Amazon S3
Many organizations use SFTP (Secure File Transfer Protocol) as part of long-established data processing and partner integration workflows. While it would be easy to dismiss these systems as “legacy,” the reality is that they serve a useful purpose and will continue to do so for quite some time. We want to help our…
Some notes about HTTP/3
HTTP/3 is going to be standardized. As an old protocol guy, I thought I'd write up some comments. Google (pbuh) has both the most popular ...
Mozilla Fights On For Net Neutrality
Mozilla took the next step today in the fight to defend the web and consumers from the FCC’s attack on an open internet. Together with other petitioners,
Internet Vulnerability Takes Down Google
BGP route leak interrupts access to Google’s services throughout the world. Traffic rerouted via Russia and China and slammed into the great firewall.