R71 IT Blog

Great collection of Linux commands to connect to a wireless network. Many thanks to wirelessdefence.org.

Very important: check if your own WiFi LAN is secure. You need some tools to perform these actions. Easiest way to get these tools is to download and burn the backtrack cd iso file. Start your computer and boot from the cd. Slax (live cd version of Slackware) is used for the os. Most of…

# Install software called by VMware Tools yum install gcc# Install kernel header filesyum install kernel-devel# Check it matches the running kerneluname -r # running kernelrpm -q kernel-devel # installed kernel headers# It the two versions do not match, runyum -y upgrade kernel kernel-devel# then reboot (but only if they did not match).# Find out…

Problem  After installing FC5 and configuring the first in the LogWatch daily report gave me tis error (from the /var/log /security logfile): ——————— sasl auth daemon Begin ———————— **Unmatched Entries** Deprecated pam_stack module called from service "imap"Deprecated pam_stack module called from service "imap" Solution It appears that from FC5 onwards, lines like this in PAM…

Search and replace one file with the same name in several directories # find . -name "favicon.ico" -exec cp /username/images/favicon.ico {} \; # find . -name "favicon.ico" -exec ls -al {} \; Search and replace files with the same name or the same part of the name # find . -name file.cfg.old -exec rename .cfg.old…

A Favicon is a little custom icon that appears next to a website's URL in the address bar of a web browser. And when I say little, I mean 16 pixels by 16 pixels. So if you like a good design challenge try your hand at this one. All you need to add a Favicon…

Would you like to have complete access to you network from wherever you are? Wel, it's possible and very easy to accomplish with sslexplorer, an open-source browser based SSL VPN solution. With sslexplorer you can create a VPN to your own network via port 433. You can control your own network from behind almost any…

Upgrading Joomla to a new version is very easy…

This tutorial explains how to setup a DNS master and slave server using RedHat Linux. This configuration is tested on RHES 4.0 and Fedore Core 5 systems. Configuration for both is the same. 11-02-2007: I recently added a new article: Howto setup dynamic DNS

This article descibes the configuration of an IMAP server. The software I used was Fedora Core 4, 5 and 6 and Red Hat AS 4.0 and Cyrus Imap. Before you get started it is advisable and really cool to create a (dymanic) DNS service on your network.

Configure Fetchmail on your mailserver to collect email from your pop3 accounts all over the world. Examples added for non-secure and for secure pop3 accounts like gmail.

Configure your server to use NTP for time synchronisation. In this example we are using a pool of NTP servers to connect to.