How to restrict Internet access to known IP/MAC on OpenWRT?

I decided to restrict Internet access from my LAN to known IP/MAC pairs only. Primary to block Internet access from my PS3, virtual machines and computers that do not need it. Simplest way to achieve this on Linux: filter packet coming from LAN interface in FORWARD chain.

On OpenWRT custom firewall rules can be defined […]

Debian GNU/Linux on Acer Aspire 5102WLMi

Installing, configuring and using Debian GNU/Linux on Acer Aspire 5102 WLMi notebook.


Apache suEXEC support for PHP scripts without FastCGI

suEXEC feature provides Apache users the ability to run CGI programs under user IDs different from the web server user ID. Normally, when a CGI program executes, it runs as the same user who is running the web server. In most configurations PHP scripts are handled by mod_php and cannot suEXEC. After switching to php-cgi […]

PixelView PlayTV Pro PV-BT878P+9X

Using “Designed for …” hardware with Linux was always a pain. Vendor support suggests to “use software from CD”, and check if card is properly installed “by clicking on My Computer, and then …”. And then I explained that I’m running Linux. I was told that Linux is not supported and card is not prepared […]

GeoURL plugin for DokuWiki

GeoURL is a location-to-URL reverse directory which allow to find URLs by their proximity to a given location. This allow you to find neighbor’s blog or the web page of the restaurants near you.

This DokuWiki plugin allows you to set geographic data for your Wiki with GeoURL, which allows you and your visitors to […]

Kalkulator programowalny Texas Instruments Voyage 200

Programowalne kalkulatory Texas Instruments posiadają wiele cech zbliżających je do palmtopów. Duże wyświetlacze (Voyage 200 posiada ekran LCD o rozdzielczości 128×240 pikseli), ponad sto kilobajtów pamięci RAM (zależnie od modelu), nawet 2,7MB pamięci ROM (w technologii Flash). I rzecz najważniejsza – procesor… Motorola 68000 (12MHz) wspierana przez GCC. Niemniej ważną cechą tych urządzeń jest możliwość […]

Wampirzce – yet another Conway’s Game of Life implementation

Game of Life, a cellular automaton devised by the John H. Conway inspired many and became well known example of a cellular automaton. Game of Life is a zero-player game. There are no human players, moreover there are no players at all. Some time ago I have decided to create my own implementation of Life-like […]

LibFakeTime 20071101

New version of LibFakeTime was released today. Now it support (or more technically: “shadows” symbol on dynamic linker consolidation) one more function – Linux’s clock_gettime(), thus it will support those programs and libraries which calls this kernel routine directly.


Wine with on-access ClamAV scanning

Using Wine introduces new threats to your Linux box. One day every computer virus prepared to run under Windows will smoothly run under Wine. Some time ago I wrote ClamFS, a FUSE-based user-space file system for Linux with on-access anti-virus file scanning. It uses well known Open Source virus scanner – Clam AntiVirus. ClamFS was […]