How can I list the open ports on my system and the process that owns them?
This is an interesting idea. This small howto will teach you to wire up a Power Over Ethernet (POE) cable AND make it provide power INTERNALLY i.e. no external power connector going into the router. So if you have limited space in your outdoor AP enclosure, you can use this hack. You can also apply [...]
Here is an interesting Slackware review and some helpful hints about the newly released Slackware Linux version 12: I’m big fan of Slackware Linux, I have used it since the 9.0 version, and I am very happy with this distribution, in the beginning was challenging to setup mostly because I was a newbie, today I [...]
A device driver is computer program allowing other computer programs to interact with a computer hardware device. Writing a Linux device driver is considered as a black art by many. If you ever been tempted to try writing a device driver, this howto will serve as a kick start guide: For many seasoned Linux developers, [...]
The BIOS is Basic Input/Output System used by a computer which embedded on a chip on a computer’s motherboard. It is used to controls various devices connected to your computer. When you turns on the computer, the BIOS starts up and performs a Power-On Self Test (POST). The BIOS will check all devices connected to your computer such as the CPU, RAM, the video card, the sound card and so on. Once the post test has completed, the BIOS will looks for Linux operating systems on the hard drive. At this point, the Linux takes over control of your computer and finishes starting up system in GUI or text based mode.
Recently I was asked to control access to couple of services based upon day and time. For example ftp server should be only available from Monday to Friday between 9 AM to 6 PM only. It is true that many services and daemons have in built facility for day and time based access control.
