When troubleshooting networks, when there is an IP-address conflict for example, it is sometimes useful to lookup the vendor of the mac-addresses. This way you can identify the brand of the conflicting host. A tool for doing this is found here. It contains information about both ethernet and bluetooth manufacturers.
Author Archive for: stefan
About Stefan Helander
I was born a nerd! As a child I was fond of fiddling with all kind of thechnical stuff, discovering how things work and often fixing them. As a 6 year old I fixed my grandmothers 220 volts wiring.
The interest in technical stuff grown even bigger in the teenage years where I got my amateur radio license and developed a keen interest in computers.
Today I am proud to be a nerd. It is a part of my profession.
To all of you nerds and geeks out there - remember that nerd is the new sexy! :)
Entries by Stefan Helander
If the installation of VirtueMart version 1.1.3 for Joomla! 1.5.10 fails, a manual installation is needed. The error message says that some critical components of VirtueMart are missing. In addition to the following instructions, read the VirtueMart installation manual. Download the VirtueMart Manual Installation package for Joomla! 1.5 from VirtueMart website. Unzip the contents of the archive to […]
When connecting an Asus EeePC 900/901 running Ubuntu eee 8.04 (‘Easy Peasy‘) to the Internet through a Windows Vista machine running Internet Connection Sharing (ICS) and you are experiencing intermittent DNS-problems, the problem can be related to IPv6 being enabled but there is no IPv6 Internet connection (only IPv4). In Firefox there is a DNS-error […]
In Ubuntu eee 8.04 for Asus EeePC 900/901 (‘Easy Peasy‘) there is a problem when trying to look at Youtube videos. Almost all videos gives a message saying that it is not currently available. The problem is the flash player included in the Ubuntu eee installation. To resolve the problem: Try do uninstall ‘flashplugin-nonfreebeta’ using […]
In WordPress blog software version 2.7.1 there is a problem after a default install when uploading images. The images are stored in the ‘wp-content’ folder but referred to with ‘wp-content/uploads’ path. The result is that uploaded images can’t be used in blog articles. To resolve this problem, click on Settings, then Miscellenous. Note that the […]
When using Ubuntu eee 8.04 (‘Easy Peasy‘) on an ASUS Eee PC 900/901 and you try to connect to a DLINK DI-624+ wireless broadband router with WEP security enabled, the network manager in Ubuntu eee keeps displaying a dialog asking for the WEP pass phrase, even though is entered correctly. The problem is the “Super […]
To get your own style and feel of your osCommerce webshop there are different options at hand. One is to have someone to tailor your own design. This way your web shop will be truly unique, but of course at a cost that can be high. Other options are using free templates or buying a […]
On http://www.cromwell-intl.com/security/ you will find a number of articles related to Computer System and Network security. It covers chryptography, privacy tools, computer forensics, authentication, intrusion detection and network monitoring. GRC Shields Up! tests your firewall from the outside and reports what you are exposing to the Internet. At CERT, Computer Emergency Response Team, you will find up […]
When you need to know what your current IP-adress on the Internet is, there is a tool: http://myip.heltech.se This page displays your current IP-adress, your reverese DNS name, how your browser identifies itself and if you are accessing the Internet through a proxy server. This is the information servers that you visit on the internet […]
When installing the sample data during the installation of Joomla, the heading of the front page is "Welcome to the frontpage". To change this text,