Internet-related information

Free software

Software freely available for use.


Configuring a simple set of asymmetric VLANs on a D-Link DGS-1210 series smart switch Updated
Extending asymmetric VLANs onto a second D-Link DGS-1210 series smart switch Updated
Asus RT-AC86U Ethernet & WiFi home/gaming router
Cisco 2921 basic configuration
Cisco RV320 and RV340 small-business routers
Cisco C931-4P New enterprise branch router
Cisco C931-4P basic configurationUpdated
Cisco C3560CX-8PC small-business switch New


About spam - What is spam (of the e-mail type), and what to do about it
Tracing spam - How to trace the sender of spam
A creative "Nigerian letter"- For your entertainment and education, and an eye-opener for the would-be fools who, now and then, still fall for this type of scam.
Two Nigerian letters from Spain - Also for your entertainment and education, two Nigerian letters delivered by ordinary mail.
The "Russian Doll" Nigerian letter - A scam-within-scam-within-scam Nigerian letter.
A fake ransom demand - A demand for the payment of ransom, which actually turns out to be a mass-mailing.
Fake police summons and a second example - No, Interpol will not use a Gmail address to send you an official notice of criminal investigation, threaten you with a large fine, and demand that you confess of being guilty of downloading child pornography.

Internet-related laws

Copyright, patents and trademarks - A simple discussion.

Older pages, no longer relevant to the present situation

Spambait - A program for generating millions of false e-mail addresses to put as bait on your web site, read the instructions and download the program