571
Outlook.com is silently discarding email messages (2015)
Outlook.com and hotmail.com is silently discarding email messages from our SMTP server.
New
The latest blog posts to take off on Hacker News. 1,615 posts.
572
Self-hosted email is the hardest it's ever been, but also the easiest
It's never been easier to self-host your email. It's never been harder to self host your email.
573
Email Done My Way, Part 0 – The Journey
Warning. This whole series is not a simple HOWTO. This series is about how I run my mail server. I go through the configuration, line by line and explain. It’s not going to be a simple Copy/Paste to run your own mail server. You have been warned.
574
The Trouble with 5G
Science News, Physics, Science, Philosophy, Philosophy of Science
575
Thunderbolt, Displayport and Docks
Blog post — USB, Thunderbolt, Displayport & docks
576
Dear Linux, Privileged Ports Must Die
Privileged ports were a security feature in the days of dumb terminals, in the age of the World Wide Web, they are a security vulnerability.
577
578
Large scale Internet SSH brute force attacks seem to have stopped here
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
579
Solving my truck’s TPMS sensor problem with the help of an RTL-SDR dongle
This post is going to be a bit different from my usual posts. It’s still about computers, but it’s about a different type of computer: the computer modules in my 2009 Dodge Ram 1500 pickup. Vehicles these days have lots of computers in them. I’ve historically been afraid to mess too much with them in fear of screwing…
580
Resolving an unusual WiFi issue
Late last year, I started experiencing some unusual intermittent connection issues on my Desktop. In general, I had a stable connection with average latency; however, at (seemingly) random times throughout the week, I would start experiencing sudden 2000ms+ latency spikes every couple of seconds.
581
Using SSH_config Match to connect to a host using multiple IP or Hostnames
My main computer is a MacBook Pro from 2017, but I have some servers laying around and one other laptop connected at home with ArchLinux installed that I use mainly for development. I connect to it remotely either directly using a SSH/Mosh + Tmux + Emacs/Vim combination, or using the pretty convenient VSCode Remote…
582
583
SSH tips and tricks
Since I joined Charm, I’ve been working and learning more about SSH, and I thought I would share a few quick tips and tricks with you.
584
585
From Oscilloscope to Wireshark: A UDP Story
Like many of you, I've got hardware on my desk that's sending UDP packets, and the time has come to take a closer look at them.
586
IPFS and Their Gateways
The InterPlanetary File System (IPFS) is according to the Wikipedia description: "a protocol, hypermedia and file sharing peer-to-peer network for storing and sharing data in a distributed file system.". It works a little like bittorrent and you typically access content on it using a very long hash in an ipfs:// URL…
587
Let websites framebust out of native apps
Back in 1996, the website TotalNews.com had a brilliantly evil idea. Why not make a single website that itself contained all the top American news websites, directly embedded within?
588
Why does gRPC insist on trailers?
gRPC comes up occasionally on the Orange Site , often with a redress of grievences in the comment section. One of the major complaints people have with gRPC is that it requires HTTP trailers. This one misstep has caused so much heartache and trouble, I think it probably is the reason gRPC failed to achieve its goal…
589
Arris / Arris-variant DSL/Fiber router critical vulnerability exposure
Cybersecurity researcher, entrepreneur, and engineer.
590
591
ICMP, Ping, and Traceroute – What I wish I was taught (2020)
I wanted to write a post and do a bit of a deepdive into ICMP, ping and traceroute. I’ve found that having a good networking foundation has been a tremendous…
592
What’s the maximum size of a DNS response?
Everybody knows a DNS response needs to fit into a 512 byte UDP packet, right? But suppose it doesn't fit...
593
Understanding modern Linux routing (and wg-quick)
Back in the old days, I could just type route (or, later, ip route) in my Linux terminal and get an accurate picture of all my routes. This is no longer the case.
594
595
Introduction to TCP and Sockets (2001)
This section is an introduction to TCP/IP programming using a sockets API. (Sockets can also be used to work with other network protocols, such as IPX/SPX and Appletalk, but that is beyond the scope of this document.) The standard socket API was originally developed in the Unix world, but has been ported to OS/400 as…
596
DNS Esoterica – Why you can't dig Switzerland
As part of my new job, I'm learning a lot more about the mysteries of the Domain Name System than any mortal should know I thought possible. The humble unix dig command allows you to query all sort of DNS information. For example, to see name server records for the BBC website, you can run: dig bbc.co.uk NS Which will…
597
Guest WiFi using a QR code
On my home network I have guest WiFi configured and when guests come round they need to know the password. Happily there's a way to make thi...
598
Sufficient Decentralization for Social Networks
A design pattern to reduce centralized control and change incentives in social networks.
599
Running an Open Source Home Area Network
Insights on running a Home Area Network (HAN) nearly completely on open source software, including configurations and metrics.
600
Delayed Messages on iOS
When I got my first iPhone in March I was surprised to find that iMessage didn’t support scheduling messages to be sent at a later time. This feature is pretty common on some other messaging platforms, and it’s especially useful when I remember I need to text my mom (who always has her ringer turned on) about…