http://usefulfor.com/nothing If it doesn't fit anywhere else, it's in /nothing Fri, 05 Sep 2008 09:14:34 +0000 http://backend.userland.com/rss092 en   miniconomics.com is an easy-to-use tool designed to manage your personal expenses that we have been developing over the last few months. The key benefits of the tool at this point in time: It is alive, changing every day, release early, release often. miniconomics.com is under a never ending churning ... http://usefulfor.com/nothing/2008/06/09/miniconomicscom-your-expenses-under-control/ Directly inspired by The Art of War of Sun Tzu, yesterday I found the following piece of wisdom: After years of thinking about, writing about, and filtering messages, I've decided that the best strategy for me is to not filter spam, but instead to filter non-spam The full article at Reverse Spam ... http://usefulfor.com/nothing/2008/06/01/winning-without-fighting/ A new puzzle, this time from Conceptual Blockbusting: A Guide to Better Ideas by Jams L. Adams: One morning, exactly at sunrise, a Buddhist monk began to climb a tall mountain. A narrow path, no more than a foot or two wide, spiraled around the mountain to a glittering temple at ... http://usefulfor.com/nothing/2008/05/15/the-buddhist-monk-puzzle/ What is an Intermediate Certificate Authority (CA) and why do I need one? An Intermediate CA is an authority that you use to create your own SSL certificates in a PKI environment. An Intermediate CA depends on a Root CA that is the origin of the chain of trust. The ... http://usefulfor.com/nothing/2008/03/20/howto-create-an-intermediate-certifica-authority-ca-using-openssl/ This has not been the first time I have tried, but it has been the first time it has worked. And the best of it, no Partition Magic or (qt)parted is needed, just pure old tune2fs, resize2fs and fdisk (read the man pages and backup everything as usual :roll: ). In ... http://usefulfor.com/nothing/2007/12/14/howto-resize-an-ext3-partition-without-losing-data/ http://usefulfor.com/nothing/2007/10/13/jack-bauer-and-the-cofee/ Instructions follow on how to build and harden one of the most common configurations out there. We are going for a DIY installation were everything is compiled from source, so some development tools are required. Let's get our hands dirty! Download an uncompress [code] cd /usr/local/src/ wget http://mirror.public-internet.co.uk/apache/httpd/httpd-2.2.4.tar.gz tar -xvvzf httpd-2.2.4.tar.gz wget http://uk2.php.net/get/php-5.2.3.tar.gz/from/this/mirror tar -xvvzf php-5.2.3.tar.gz [/code] Install software Required ... http://usefulfor.com/nothing/2007/09/14/harden-your-apachephp-installation/ Every now and then I need to send by email some file to a friend or coworker or even myself. I have found that the easiest way to do this is just having a shell script that do the hard work for you. After some research I found a set of ... http://usefulfor.com/nothing/2006/12/20/send-files-through-email-from-the-command-line/ Here is a tiny script that can be usefull to terminate (kill -9) all the programs which contain a certain string (i.e.: kill all the running copies of ping). [code] #!/bin/bash for foo in `ps aux | grep $1 | awk '{print $2}'`; do kill -9 $foo; done [/code] Just run: matar <program name> ... http://usefulfor.com/nothing/2006/12/15/matar-bloodlust/ Just a quick tip! You have to use the bash function ${foo//string1/string2}. Check the Advanced Bash-Scripting Guide for a complete list of string manipulating functions. [code] for foo in *; do mv "$foo" ${foo// /_}; done [/code] http://usefulfor.com/nothing/2006/12/14/replace-spaces-in-filename/