http://www.bitflop.com/This is the personal website of Kim Naim Lesmer. http://www.bitflop.com/document/136 http://www.bitflop.com/document/136 This is a small article that takes an objective look at the PSR-0 autoloader "standard" implemented by PHP-FIG. http://www.bitflop.com/document/135 http://www.bitflop.com/document/135 A small article about PHP frameworks, design patterns, and the art of programming with passions. http://www.bitflop.com/document/133 http://www.bitflop.com/document/133 Why spend time learning some stupid template language that is just as complicated as the programming language, and often even more illogical, than the real programming language? http://www.bitflop.com/document/132 http://www.bitflop.com/document/132 Many docking stations cannot handle large disks properly resulting in ruined partition tables and data corruption. http://www.bitflop.com/document/131 http://www.bitflop.com/document/131 Using or recommending Flash is equivalent to promoting proprietary software. In addition, the audio and video codecs are patented, and the complete specification for making a compatible Flash player is not available. Most people use Flash to watch videos on YouTube and this document describes an alternative way to watch YouTube videos without installing Flash. http://www.bitflop.com/document/130 http://www.bitflop.com/document/130 Forleden kunne man læse at Tysklands instans for it-sikkerhed, Bundesamt für Sicherheit in der Informationstechnik (BSI), anbefalede i en ny Windows-guide, at Windows 7-brugere benytter Googles Chrome-browseren, men er det nu også en god idé? http://www.bitflop.com/document/129 http://www.bitflop.com/document/129 This is a minor tutorial in the usage of GnuPG to encrypt, decrypt, and sign emails and files. The examples provided in this tutorial has only been tested on Debian GNU/Linux Squeeze. http://www.bitflop.com/document/128 http://www.bitflop.com/document/128 This tutorial explains how you can enforce a strong password for users on Debian. http://www.bitflop.com/document/127 http://www.bitflop.com/document/127 Sharp mz800 specifications. http://www.bitflop.com/document/124 http://www.bitflop.com/document/124 How do automatically unload modules at boot time in Debian http://www.bitflop.com/document/120 http://www.bitflop.com/document/120 This is a benchmark test of the performance of PHP with and without APC (Alternative PHP Cache). The test was performed on an Intel P4 1.7 Ghz with 1036028 kB of memory over a private LAN. The server runs PHP 5.3.3 on a standard Debian installation. Between each change of settings all related processes was restarted. http://www.bitflop.com/document/121 http://www.bitflop.com/document/121 Notes about PHP performance and benchmarking. http://www.bitflop.com/document/118 http://www.bitflop.com/document/118 This is a benchmark test of the performance of MySQL Cache. The test was performed on an Intel P4 1.7 Ghz with 1036028 kB of memory over a private LAN. The server runs MySQL 5.0.51a and PHP 5.3.3 on a standard Debian installation. Between each change of settings all related processes was restarted. Since Debian Squeeze the MySQL Cache is enabled by default. http://www.bitflop.com/document/117 http://www.bitflop.com/document/117 This is a benchmark test of the loading speed of dynamic pages vs. static pages vs. pages stored in Memchached using PHP. The test was performed on an Intel P4 1.7 Ghz with 1036028 kB of memory over a privat LAN. The server runs MySQL 5.0.51a and PHP 5.3.3 on a standard Debian installation. Between each change of settings all related processes was restarted. http://www.bitflop.com/document/116 http://www.bitflop.com/document/116 This small tutorial is about how to create an empty branch in Git. http://www.bitflop.com/document/115 http://www.bitflop.com/document/115 A social networking service is an online service, platform, or website that focuses on building and reflecting of social relations among people. http://www.bitflop.com/document/114 http://www.bitflop.com/document/114 Før Google kom til var Webcrawler min favorit søgemaskine. Dengang handlede søgning udelukkende om at finde ting, og det var før den tid hvor søgemaskinen, eller rettere firmaerne bag, begyndte at gemme private oplysninger om dig. I dag handler søgning ikke længere om at finde ting, men derimod om hvordan man optimal profit, og i den proces at gemme alle oplysninger om hvad du har søgt på, hvilke resultater du har klikket på, hvilken computer og hvilken IP du søgte fra o.m.a http://www.bitflop.com/document/113 http://www.bitflop.com/document/113 I just finished reading the book Pro PHP Refactoring by Franvesco Trucchia and Jacopo Romei. The book itself should be refactored - it's not pro at all. http://www.bitflop.com/document/112 http://www.bitflop.com/document/112 When going into extremes in using a specific programming style or a specific design pattern the result is always bad code even if it looks nice http://www.bitflop.com/document/111 http://www.bitflop.com/document/111 The Git revision control system has something called a bare and a non-bare repository. This article deals with the issue and also compares the Git design to the design of Mercurial and Bazaar. http://www.bitflop.com/document/110 http://www.bitflop.com/document/110 http://www.bitflop.com/document/108 http://www.bitflop.com/document/108 The Windows XP nv4_disp infinite loop problem is a problem people running with Nvidia graphic cards may experience on rare occasions during gameplay or even during boot on Windows XP (perhaps also on other Windows versions). Usually the problems results in the blue screen of death. http://www.bitflop.com/document/106 http://www.bitflop.com/document/106 Have you ever tried to unmount a partition only to get the message: device is busy? Well, there's a reason for that and here's what you can do. http://www.bitflop.com/document/107 http://www.bitflop.com/document/107 On Debian it is easy to find out what package a specific program or file belongs to even if the package isn't installed. http://www.bitflop.com/document/105 http://www.bitflop.com/document/105 This is nothing new, but if you ever needed a simple way to convert a document from CHM format into PDF format on Linux, here's an easy way to do it with a fairly good result. http://www.bitflop.com/document/103 http://www.bitflop.com/document/103 It is possible to resume a broken SFTP transfer using rsync. http://www.bitflop.com/document/101 http://www.bitflop.com/document/101 What constitutes a strong password, lets take a look from the hackers point of view. http://www.bitflop.com/document/100 http://www.bitflop.com/document/100 If you are running a Linux distribution or a BSD flavor on your PC and have installed it in your native language (in this case not English), most console applications will be running in that language. What do you do, if you don't want that for each application, but only for some? http://www.bitflop.com/document/99 http://www.bitflop.com/document/99 Man pages are the extensive documentation that comes preinstalled with almost all substantial Unix-like operating systems. Each page is a self-contained document. This how-to is about how to convert a man page into a PS or PDF document. http://www.bitflop.com/document/98 http://www.bitflop.com/document/98 Software projects, whether small or big, often needs to go trough periodic official releases. Often you need to release a stable branch of a project while at the same time development continues on the main branch. This small tutorial is about how this can be done using the Mercurial revision control system. http://www.bitflop.com/document/97 http://www.bitflop.com/document/97 Mercurial vs. Git vs. Bazaar vs. Darcs, Debian vs. Fedora vs. Gentoo vs. Mandriva vs. OpenSuse vs. Ubuntu, FreeBSD vs. NetBSD vs. DragonBSD vs. OpenBSD. http://www.bitflop.com/document/96 http://www.bitflop.com/document/96 This document is about my personal preference with regard to backup solutions, revision control system and directory structure. http://www.bitflop.com/document/95 http://www.bitflop.com/document/95 Working with include paths in PHP can sometimes provide quite a challenge. When everything resides in the document root there are no problems, but once the files are moved into one or more subdirectories difficulty may arise. This article uses Unix paths, not Microsoft Windows paths. http://www.bitflop.com/document/79 http://www.bitflop.com/document/79 I have been using GNU/Linux, FreeBSD and OpenBSD exclusively since about 1999. I am running Debian on my laptop and on one of my desktops. I am running FreeBSD on my other desktop. I also have a couple of servers where I run Debian and OpenBSD. I work with Linux and BSD every day, and I am very happy with the quality of Debian, FreeBSD and OpenBSD. From time to time I still test different Linux distributions and see whats new in the world of Linux, but in eight years I have never shifted to another Linux distribution and I don't think I ever will. http://www.bitflop.com/document/94 http://www.bitflop.com/document/94 In the world of Linux (also called GNU/Linux) there currently exist over 600 distributions, approximately 300 of those are in active development, constantly being revised and improved, and while most of them look great, only a few of them are actually worth paying attention to IMHO. http://www.bitflop.com/document/92 http://www.bitflop.com/document/92 The other day I had to upgrade a BIOS on a HP nx9005 laptop. The BIOS utility was created to run on DOS or Windows only, but in this small tutorial I'll show you how you can do it running Linux. http://www.bitflop.com/document/91 http://www.bitflop.com/document/91 This is how you can mount an OpenBSD slice from Linux. http://www.bitflop.com/document/90 http://www.bitflop.com/document/90 How many characters can fit into tinytext, text, mediumtext and longtext etc. http://www.bitflop.com/document/89 http://www.bitflop.com/document/89 Before today I didn't know they existed, but after receiving an email from a friend telling me about them (thanks Irfan), I had to try them out, and I can tell you this much, they are great! http://www.bitflop.com/document/88 http://www.bitflop.com/document/88 If you have a lot of duplicate files, fdupes can help you remove them very easily. http://www.bitflop.com/document/86 http://www.bitflop.com/document/86 How to encrypt and decrypt a file using GnuPG, OpenSSL or Mcrypt and a passphrase. http://www.bitflop.com/document/84 http://www.bitflop.com/document/84 This small article describes how you can get rid of the MARK message on Debian GNU/Linux in the message log. http://www.bitflop.com/document/85 http://www.bitflop.com/document/85 This is a small article on how to get you MAC to boot from a CD/DVD. http://www.bitflop.com/document/82 http://www.bitflop.com/document/82 This article describes how you can keep you system time precise using the NTP server. http://www.bitflop.com/document/81 http://www.bitflop.com/document/81 This article describes how to set your hostname, domain name and fully qualified domain name properly. Both a mail server and a web server needs to by run with the right hostname and domain name. http://www.bitflop.com/document/83 http://www.bitflop.com/document/83 This article describes how you can speed up DNS requests using BIND as a local cache. http://www.bitflop.com/document/80 http://www.bitflop.com/document/80 Normally it is not possible to resume transfer of files using SFTP, but with the PuTTY client it is. http://www.bitflop.com/document/69 http://www.bitflop.com/document/69 PHP web applications are one of the most commonly attacked pieces of software on the Internet today. Anyone who has looked at their web server logs can attest to the frequency of probes for vulnerable PHP applications. PHP's easy learning curve has lead to its popularity and breadth of applications, but not without some hard lessons on the way. This document serves as a reminder of some of the important security related issues when programming in PHP. The paper is not a security manual. The paper is just a collection of notes. If you are writing PHP applications I strongly suggest that you research the subject. http://www.bitflop.com/document/30 http://www.bitflop.com/document/30 About Kim N. Lesmer. http://www.bitflop.com/document/32 http://www.bitflop.com/document/32 Useful world wide web links. http://www.bitflop.com/document/16 http://www.bitflop.com/document/16 Bitflop.com is the personal website of Kim N. Lesmer http://www.bitflop.com/document/29 http://www.bitflop.com/document/29 The software development principles of Kim Naim Lesmer. http://www.bitflop.com/document/78 http://www.bitflop.com/document/78 Jeg har netop i dag afsluttet en omfattende test af de kendte Open Source forums, og jeg har for en god ordens skyld nedskrevet mine notater, og har samlet dem her i denne review. Det er ikke en reel review med en masse informationer om hvert system, det kan du finde i de respektive systemers dokumentation. Det er derimod mine holdninger i forbindelse med mine testresultater. http://www.bitflop.com/document/77 http://www.bitflop.com/document/77 Ubuntu GNU/Linux has grown to become the most famous linux distribution in the world. It is the linux distribution on DistroWatch that currently has the greatest hit rate, and even though it is based completely upon Debian GNU/Linux, it has almost twice as many hits. This articles explains what Ubuntu is and what relation it has got with Debian. http://www.bitflop.com/document/76 http://www.bitflop.com/document/76 EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the file system interface. EncFS is meant to provide security against off-line attacks, ie your notebook or backups fall into the wrong hands, etc. The way EncFS works is different from the "loopback" encrypted file system support built into the Linux kernel because it works on files at a time, not an entire block device. http://www.bitflop.com/document/75 http://www.bitflop.com/document/75 http://www.bitflop.com/document/93 http://www.bitflop.com/document/93 Getting the CPU to slow down using a lower frequency when not used can save you power and noise. Note: This is automatically setup on laptops on Debian stable aka Lenny during installation. http://www.bitflop.com/document/72 http://www.bitflop.com/document/72 This is a small article on how pointers work in the programming language C. The article is addressed to beginners. Rather than focusing a lot on the more technical aspects of pointers, and using complex examples, the article focuses on a deeper understanding of the subject so that the issue is understood firmly. The article assumes a little bit of prior knowledge of C, such as assigning values to variables, compiling, printing to the screen and using comments, but it is not necessary. http://www.bitflop.com/document/71 http://www.bitflop.com/document/71 This is an article about programming languages and compilers with special focus on the use of C, C++ and Ada. The article is also about choosing the right language for a particular task, and about compiler related problems. It is about programming experience and about not comparing programming languages. Some of the information on the particular programming languages has been collected from Wikipedia. http://www.bitflop.com/document/70 http://www.bitflop.com/document/70 This is a small article on how to choose a good book on programming, but the same method can be applied to other areas as well. It should be noted that the described method is my method, it is not a universal method. http://www.bitflop.com/document/67 http://www.bitflop.com/document/67 http://www.bitflop.com/document/66 http://www.bitflop.com/document/66 In connection with some corrupted files in CVS I decided that it was time to take a look on some other revision control systems. This article is a summary of my three day journey into the land of revision controlling. http://www.bitflop.com/document/65 http://www.bitflop.com/document/65 Denne artikel handler om effektiv fejlfinding. Artiklen er ikke omfattende, men jeg kommer alligevel med praktiske eksempler på effektiv fejlfinding og organisering, eksempler der måske kan virke som inspiration til, at man selv opbygger effektive metoder til fejlfinding. http://www.bitflop.com/document/64 http://www.bitflop.com/document/64 This is a mini tutorial in solving problems with the Apache webserver charset specifications. http://www.bitflop.com/document/63 http://www.bitflop.com/document/63 Dette er en mini tutorial i hvordan du installere Tor på Debian GNU/Linux. http://www.bitflop.com/document/60 http://www.bitflop.com/document/60 http://www.bitflop.com/document/61 http://www.bitflop.com/document/61 Dette er en lille "review" af Debian GNU/Linux kontra FreeBSD som desktop løsning. http://www.bitflop.com/document/59 http://www.bitflop.com/document/59 Dette er en mini tutorial i brugen af soctstat og netstat. http://www.bitflop.com/document/58 http://www.bitflop.com/document/58 Dette er en lille tutorial i brugen af fstat på OpenBSD, FreeBSD og NetBSD. http://www.bitflop.com/document/57 http://www.bitflop.com/document/57 Dette er en mini tutorial i brugen af variablen PACKAGESITE og PACKAGEROOT på FreeBSD. http://www.bitflop.com/document/55 http://www.bitflop.com/document/55 Dette er en mini tutorial i hvordan du installere Tor på FreeBSD. http://www.bitflop.com/document/56 http://www.bitflop.com/document/56 Dette er en mini tutorial i hvordan du kan give root kontoen et nyt password på FreeBSD eller OpenBSD, hvis du har mistet det. http://www.bitflop.com/document/54 http://www.bitflop.com/document/54 Dette er en mini tutorial i, hvordan du kan give root kontoen en ny shell, hvis du ved en fejl er kommet til at pege på en shell, der ikke eksisterer. http://www.bitflop.com/document/51 http://www.bitflop.com/document/51 Dette er en mini tutorial i, hvordan du installere NVIDIA til FreeBSD. http://www.bitflop.com/document/52 http://www.bitflop.com/document/52 Dette er en mini tutorial i, hvordan du kan løse et evt. problem med adgangen til unlpt0. http://www.bitflop.com/document/50 http://www.bitflop.com/document/50 Dette er en lille tutorial i opsætningen af MySQL server på OpenBSD 3.9. Der kan komme ændringer i opsætningen i senere versioner af OpenBSD. http://www.bitflop.com/document/49 http://www.bitflop.com/document/49 Dette er en mini tutorial i brugen af diff og patch. http://www.bitflop.com/document/48 http://www.bitflop.com/document/48 Dette er en kort beskrivelse af opsætningen af et netkort i OpenBSD, FreeBSD og NetBSD. http://www.bitflop.com/document/47 http://www.bitflop.com/document/47 Dette er en lille tutorial i mounting af SMB Microsoft Windows shares på OpenBSD, FreeBSD og NetBSD. http://www.bitflop.com/document/46 http://www.bitflop.com/document/46 Dette er en kort beskrivelse af forskellen imellem current, release og stable versioner på OpenBSD, FreeBSD og NetBSD. http://www.bitflop.com/document/45 http://www.bitflop.com/document/45 Misforståelser vedrørende webstandarder og brugervenlighed, prisen for at sikre at de er implementeret, og tiden det tager at udvikle med dem, afholder mange virksomheder fra at opnå succes med deres webdesign. http://www.bitflop.com/document/44 http://www.bitflop.com/document/44 Dette er en kort gennemgang i forskellen på dynamiske sider og statiske sider. Hvad består de af, og hvilken betydning har de for en hjemmeside. http://www.bitflop.com/document/41 http://www.bitflop.com/document/41 Brugere af internettet forventer, at 77 % af de simple webdesigns opfører sig på en bestemt måde. Desværre hersker der forvirring vedrørende mange højniveau design emner. Denne tekst er en forkortet oversættelse af Jakob Nielsens artikel The Need for Web Design Standards. http://www.bitflop.com/document/42 http://www.bitflop.com/document/42 Dette er en lille liste over de typiske fejl ved webdesign og hjemmesider. Informationerne er indhentet fra eksperterne i brugervenlighed Jakob Nielsen og Vincent Flanders. http://www.bitflop.com/document/39 http://www.bitflop.com/document/39 Dette er en lille introduktion til verdens sikreste operativsystem - OpenBSD. OpenBSD er bedst egnet på servere, men kan også udemærket bruges til desktopløsninger. http://www.bitflop.com/document/37 http://www.bitflop.com/document/37 Dette er en lille introduktion til sproget CSS. Hvad er CSS, og hvad bruges det til. http://www.bitflop.com/document/38 http://www.bitflop.com/document/38 Dette er en introduktion til sproget XHTML. Hvad er XHTML, og hvad er forskellen imellem HTML og XHTML. http://www.bitflop.com/document/36 http://www.bitflop.com/document/36 Dette er en lille introduktion til sproget XSL. Hvad er XSL, og hvad bruges det til. http://www.bitflop.com/document/102 http://www.bitflop.com/document/102 Dette er en lille introduktion til sproget XML. Hvad er XML og hvad bruges det til. http://www.bitflop.com/document/35 http://www.bitflop.com/document/35 Dette er en lille introduktion til XForms. XForms - den næste generation af formelementer til HTML. http://www.bitflop.com/document/34 http://www.bitflop.com/document/34 Dette er en lille introduktion til RSS og Atom. Hvad er RSS og Atom, og hvad bruges de til.