Wednesday, November 23, 2005

(Java) Autocomplete using AJAX

Here is an article about how to implement an autocomplete text box (that looks up field values in server database as user types) in a web form using JavaScript on client side and Java Servlets on server side.

http://java.sun.com/developer/EJTechTips/2005/tt1122.html#1

Tuesday, November 08, 2005

Spam Control by Reputation

SenderBase
http://www.senderbase.org/

A very useful website for my work to control spam. This website rates the volume of mail sent from a particular ip address and marks whether or not that is 'unusual' for it from past data trends. It also gives other identifying information such as which network it is part of, and whether it is currently blacklisted by anyone. So as such it does not blacklist anyone on its own, but publicizes an ip address' reputation, so that network admins like myself can make up our own minds about the source.

I use this to maintain a DNS blacklist server on my internal network, and my mail server rejects mail from blacklisted addresses.