How to send a message to your friend over insecure lines and be sure that only they can read it

If you ask your friendly chat bot how to do self-expiring DNS records in PowerDNS Authoritative Server, it will offer you these three options:

Playing with a fancy old technology

Let's see how recently released video "speed-up" and smoothing program Microsoft Hyperlapse can deal with my record of flying in clouds

Has one benefit

Running NGINX in Kubernetes reveals a subtle DNS resolution quirk

These are e-mail addresses that sent spam/scam/phishing emails to me.

Here you can find attempts to send messages to users who do not exist on this server

These are spammers (or hackers) trying to send email from my server

These are logins and passwords of last 50k login attempts into my server.

When using k8s as geo-distributed CDN, instead of how it was supposed to be used

If what AI suggested doesn't work

is easier than you might think

is easy, even if your friendly AI tells you otherwise

I accidentally ᚦᛖ᛫ᚱᚢᚾᛖᛋ

Those which are not available via UI

A funny video about Norway and norwegians

Good monologue about modern technology and our reaction on it

You can write them here

without losing FPS

Some editors let you set tab size in pixels

Might be useful if you're running your own DNSBL

Why use someone else's Dynamic DNS server, if you can easily run your own?

One of reasons why people switch from sendmail to postfix is ease of configuration.

A website with a provoking name features funny games

Experience after playing a flash game

On Linux, you can have different keyboard layouts for different physical keyboards. How?

How to transfer a terabyte sparse file (of which only a hundred megabytes is used) from one machine to another

A webpage with a list of free games for Windows

On the main page of this blog (which lists all posts), right-click an empty place and select "View Page Source (Ctrl+U)". What do you see? An RSS feed! (or, rather, it's technically an Atom feed, but who actually cares) But how? And... Why?!..

For when you're on limited environment but want to see a process tree

If you missed them

How to generate them, so you could store them in your head

If you need a quick place to write down your thoughts and you find yourself in front of a web browser, then instead of launching notepad.exe you might want to type data:text/html,<textarea> in the address bar

Click this link to visit a random note

All these /bin, /usr, /local, etc...

TL;DR: --totals --file=/dev/null | grep 'Total bytes written'

a static blog generator which tries to do as little as possible on the server side

After some time of pondering, I switched to GitHub-Flavoured Markdown (GFM)

From: Patrick J. LoPresti
Subject: The True Path (long)

Or should I say "why-too-key" to raise more confusion?

If you need to set it programmatically

a 2.2k library to hilight any code

How to disable mail receiving by local users without deleting their accounts

Signing sendmail messages with DKIM using OpenDKIM is easier then you think!

By default sendmail is configured in such a way that any program running on localhost can send an email without password, and none from another computer can do that. But what if you want to change that?

So they weren't rejected by dnsbl spam filter

for example, to see them both in original and in your native language

TL;DR: printf 'e[3J'

Small script to help you debug this crypting xcodebuild error: exportArchive: Provisioning profile "XXX" doesn't include signing certificate "YYY"

If you happen to often switch between "dark" and "light" color themes on your system, you might be lucky enough that your browser picks it up properly and conveys to web sites

If you happen to often switch KDE desktop themes and work in konsole (KDE terminal emulator) a lot, you might want to switch konsole color schemes, too. Instead of messing with "Manage Profiles" dialog and changing profile for each open konsole tab every time, you might want to automate it a bit

TL;DR: git rebase -i, edit, git reset HEAD~ and create new commits

Unlike sector-based one, this uses more complex logic, but simpler maps

Now you can intercept other ships! They can intercept you, and each others, too!

TL;DR: ls <Esc>*

Now your game doesn't disappear as soon as you reload the page, and also you can complete missions!

Now you can participate in "useless activity" together with outher ships

Ok, it's actually barter, but now you have a reason to travel.

Now your ship can have a "radar" component, where you can look at a star system

Now you can walk on your ship... And others, too

Idea it to make a mix of space1d and space2d2 games (I'm not very good at naming things)

by limiting its charge to 90%

Due to reorganisation at my previous place of work, several people were offered to leave, including me.

A small shell script to generate one-time passwords, in bash, using oathtool

If you're (un)lucky and your employer stores all employees' contact data in a spreadsheet (instead of vcards or not giving you easy access to it at all), you can easily convert it to VCF (VCard Format file) and upload to your private WebDAV server! How? Pretty easy

properly this time

HTML parody of an OS which was popular when we were young and Internet was new

this game got its own (sub)domain!

It's playable now… if you can call it that :-)

A space trading game without money

One star is good, but more stars is better

Making a properly balanced economy simulator is pretty hard, as it turns out. But can I make a simpler 2d game?

Another attempt to add something nice to this blog

My first experience in getting a job

How to automate it if you host your mail yourself

Now you can't go outside the ship

For those cases when you need to implement something GoogleMaps-like

a simple unit file to keep a permanent SSH connection

Access for robots only

TL;DR: cat "${1:-/dev/stdin}"

A nicer version of CSS-only 2D background gradient

Let's add a colorful background to this blog, hm?

A CSS-only version of fancy 2D background gradient

with the help of script console

Maybe agent's IP is not among allowed ones?

Also known for "First actual case of bug being found" note

how to minimize them about 10-fold

A small language session

How reading one habr.com blog post caused a chain of events leading up to me writing a good documentation for a pet project

A good article that summarizes my own thoughts on hardening browser on Linux

Star Wars in ASCII art

Adding some action to the simple game prototype.

Ships are now vindictive and base their decisions (attack or trade) based on previous player behavior

Changes in physics

more choices

The game is playable now!

Moving forward with a simple game.

One step forward, one step back

Ships now have colors and like you from the first encounter if your ships color is close to theirs. But still, to change it you need to decrease your karma below -1.

Short memo about a good program

How I organized backups of my files

Short memo about a good program

...then you're doing it wrong.

You probably know ddp command in Vim to exchange two lines. But what if you want to exchange only parts of these lines?

An idea for an evil prank on your Vim-loving friend.

Even if OS sees a storage device as SSD and refuses to defrag it - you might know better

With dehydrated being 12th container to be added to my infra, this is 13th.

How to configure Postfix to skip milter for incoming messages

If you ever wanted to see how validity of DKIM signature will be affected by changing email headers and / or message body

How hard can it be? Using only nginx itself!

Sometimes it's wrong... completely... sometimes...

A quick note about a funny site and a video featuring it.

a humble beginning

Let's have something to look at!

FPV mode, so we can walk on the ship

Changing the engine

Let's build a real ship

Now we want to have a character (a pilot) to walk on the ship.

Let's put a camera onto the ship, to get some FPV experience

Game about space which will be more fun to make than to play.

My first (almost) finished game

First step is moving the ship

What I want to create and what to base on

A FUSE module that shows a list of files as one big file.

When you downloaded them separately

When you use scripting languages and want to squeeze some performance.

In case you need to switch between various OSes (be it Windows and Linux, or just various Linux distros).

TL;DR: sudo hdparm --repair-sector SECTOR /dev/sdx

Because keyboards were hard

For all your slack needs

How would it look

A brief dive into a history of early web

An interesting article showing how credit cards appeared

Interesting article about how software was distributed in old times.

Interview (with a transcript) with its creator.

It was the first programming language I was learning

Interesting article about speed of modern computers

An interesting article about designing of common UI elements which we now are taking for granted.

For when you want working dorectory (:dir) be a parameter, just like variable (:var)

How it was done. 10 days of obfurscated Javascript.

Suggestion to improve its usability

TL;DR: it's an app called "dupd"

TL;DR: When running scripts with bash -x, use true … instead of echo …, to avoid duplicate output

set -e might work not as you expected inside (parentheses).

busybox has a nice http webserver module, even with cgi support - and you can use it to upload files, too

How to get a random port number for a small service

Interesting dive into how Internet became the mess that it is now

Is it hard to download any Chromium build?

A bit of policy magic to avoid writing policy

TL;DR: make a cgroup and assign processes into them, in the systemd .service file

TL;DR: copy libs to /var/cfengine/lib/postgresql/ and extensions - to /var/cfengine/share/postgresql/extension.

TL;DR: use tar and pipe to stdout!

Automatically backup files on media mount, using usbmount

We have one now

Compatibility patch

Github user with a bunch of interesting Javascript projects/repos

RIP Douglas Engelbart, the person who shaped the modern computing. Oh, and a computer mouse.

Note that to get command line on iPhone, you need to jailbreak it first.

Helping you to get many big images from flickr to your xscreensaver

When SSH is your poor man's VPN

You brought technology closer to people

deb packages for all versions starting with 3.5

Good library for those willing to implement TeX formulas in their blogs

One of creators of C programming language passed away today

That was a google query I struggled to find answer to

vim plugin for easy commenting

Soon after change of owner in Opera, just another round of layoffs rolled through the company, this time affecting also me.

I had a dream. A nightmare, actually.

Today I've accompanied my old friend on his last journey.

Currently (Opera 15-18), when you start Opera on Windows, it spawns itself again and terminates the process you started — so you can't easily wait until the Opera you've started quit. Or can you?

one-line bash function to draw a nice progress bar

Classic which can never be forgotten is just few clicks away.

If you have a domain and don't want to be blocked for sending spam.

What do I think about it and how I'd like it to be.

EuroEnglish - Ze drem vil finali kum tru!

Greately inspired by $if(...) conditions in Winamp Advanced Title Formatting, I wanted to add something like this to Python.

TL;DR: 3> >(command)

An interesting article on how to save space and bandwidth

A helpful guide to a simple programming language I still don't comprehend

probably you've already heard about MiniCodeEditor — jsFiddle implementation in 161+ bytes. Below is my addition to that jsgolf

How I organised backups of my machine

FanlessTech.com – a website about fanless computers

An interesting article at imgur.net

These are the guys who are spamming me the most.

Started using new programming language, I feel irritated and want to blog about it :)

How to change it, if it matters

I'd like to add "...and live in it", but it's only a game, so it's more like "...and dream of it"

How much can you tease your brain?

If you know what line to delete...

Explore data about all countries in the world since 1800

How to copy-paste text from one place to another, replacing what's already there