Alexander Sandler on the Net

A web-site about administrating and programming for Linux

I know how computers work

Entries for the ‘News’ Category

New article - How inheritance, encapsulation and polymorphism work in C++

This concludes a month of work. Somehow I, again, ended up with huge article and explains lots of different things.
In this article, I am explaining how the three whales of OOP implemented in C++. How encapsulation works. How overloading of methods works. What is the structure of C++ object compared to C structure. How polymorphism [...]

New article - 32bit vs 64bit computers, the QA

This article describes the difference between the two. Does getting 64-bit support really worth the time and the effort and perhaps the the money? Find out here.

New page - Interactive Disassembler (IDA) Macros

Few years ago I’ve written a script for IDA - Interactive Disassembler. IDA is a great tool I’ve been using for many years to analyze executable files. You can find more information about it here.
The script fixes how IDA analyzes executables produces with cygwin gcc. IDA does not show all symbol names properly. The script [...]

New article - Swap vs. no swap

This article describes how lack of swap partition affects behavior of your Linux system. It is right here.

New article - Few problems that you may encounter when booting Linux

I have finished writing a new article. This article gives solutions to common problems that one may encounter when booting Linux. From faulty service scripts to corrupted initrd, it’s all there.
You can find the article here.

New article - sed, the missing manual

This article describes sed, an excellent tool that I often use in shell scripts that I write. In the article I explain it’s most common features and also show some often overlooked features. You can find it here. Enjoy it!

New article - Aligned vs. unaligned memory access

This concludes a long research that I’ve made. I wanted to know if unaligned memory access is really that bad, or not a big deal. Eventually I made some quiet interesting discoveries. Read on.

New article - Opening and modifying the initrd

As the name implies, this article explains how to crack up, modify and save modern initrd file, without using fancy tools such as mkinitrd and friends. You can find it here.

New Article - tcpdump for Dummies

In this article I explain how to use tcpdump, one of the most powerful tools in my toolbox. Hope you’ll find it useful. You can find it here.

New Gallery - Rothschild Park

I took these pictures in Rothschild Park in Zihron Yaakov. You can find it here.

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