Entries by Stefan Helander

Internet related threats



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 […]

What is my current IP-address?



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 […]

Traceroute, looking glass and whois servers



In order to analyze and troubleshoot networking issues over the Internet, there are a number of traceroute and looking glass servers availble. By using these, you can analyse the routing paths to your network. You are able to see how your network is beeing reached from different parts of the Internet. A collection of traceroute […]

The day the routers died



This song was performed in the closing plenary at RIPE55. As the exhaustion of the IPv4 is getting closer this song reminds us of the importance of preparing for IPv6. 🙂 By the way, they seems to have great fun at those RIPE meetings or what do you think?

How to change the welcome email in osCommerce



The content of the welcome email message sent to new customers in osCommerce can be changed by editing the following file(s): catalog/includes/languages/XXXXX/create_account.php Where XXXXX is the subdirectory for the language you wish to change the welcome email for. For example “english”. There are a number of texts that appear in the welcome email. They are […]