Referer sending options in Firefox

March 16th, 2017 No comments

Sending Referer header to the target site after every click on a link is basically revealing URL of the referring site. Several sites mention it as a potential privacy concern but as far as I know there is no UI option in common browsers. Firefox since 28 added “hidden” options for this.
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Tips for making a new password and how passwords work

October 22nd, 2016 No comments

From what I have seen, many people use weak passwords. But it’s actually easy to make them strong. Let’s see. Read more…

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Setting up IPv6 using a DHCP client

October 21st, 2016 4 comments

Our ISP (internet service provider) finally started offering IPv6. On the server, I received static configuration. Here, they are using DHCP6 with prefix delegation and it isn’t as straightforward as one would expect.

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[cz] Úvod do SQL

October 15th, 2016 No comments

SQL je nejběžnější jazyk používaný pro práci s RDBMs (relační databázové systémy). Protože je užitečné umět pracovat s databází, septal jsem stručný přehled operací, které se pomocí SQL dají dělat na jednoduchých konkrétních příkladech, s odkazy na další zdroje.

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[cz] Generátor bankovního čísla účtu

April 1st, 2016 3 comments

Aby se předešlo překlepům a nechtěné platbě na cizí účet, využívají číšla účtů v ČR formát podle vyhášky č. 62/2004. V tomto článku je odkaz na generátor validních čísel.

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A few important things to know for Linux beginners

December 31st, 2015 No comments

A few things I didn’t know about Linux at the time I was primarily using Windows.

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Power Bank 5000mAh Solar Charger Reverse Engineering & Modification

December 17th, 2015 2 comments

I bought a cheap solar power bank from China to power my temperature sensor. Unfortunately it was shutting itself down once fully charged, requiring me to power on manually again. In this post I will show you my reverse-engineering notes, images and what I did to make it always powered on.

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Micronova Pellet Stove LCD Reverse-Engineering

December 17th, 2015 No comments

While trying to find out a way to communicate with my pellet stove I decided to have a look at the LCD communication and maybe learn something new and have fun. It is a segment LCD and maybe you find this useful, especially when designing your own control panel or reusing the LCD from a broken panel.

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Controlling Micronova pellet stove motherboard – Stufe a pellet Aria Idro IR telecomando seriale

October 18th, 2015 232 comments

Here is how to control a pellet stove with a Micronova controller remotely either via IR commands or using the serial line.

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SSH Tricks You Must Know

March 9th, 2015 No comments

Here are some general SSH tips and a short guide for setting up an SSH connection from Mac to iOS devices.

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deadly laser