My colleage used ZyXEL Prestige 650R-31 as the main ADSL router for his company. It works very well and so stable. Last week he asked me to help him setup a server placed behide the ADSL router to be accessible anywhere from Internet. The main service is e-mail so I just added port forwarding via web-based configuration. It was so easy and worked like a charm. However, the connection could not establish if he sat inside the NAT. The problem is so called "NAT loopback". I found this kind of problem in D-Link also.

Larry asked me how to use ip2cc module. This is very interesting question. ip2cc module generally just provides APIs to obtain location of given IP address programmatically but useless for end-user. He also inspired me to show flag for each post or comment. That"s why I quickly said thank to him and added this wonderful and useful functionality.

You could update the code to the latest one in CVS and then go to admin/settings/ip2cc to enable this function. If you want to see how it look like, check it out here.

Today seems to be a big day for grid technology. There are 3 official announcement related to grid technology; one in academic and later two in industrial sector.

PEC gears up for a giant leap - The Punjab Engineering College (PEC) is all set to log on to the ambitious national Grid Computing System of the Centre for Development of Advanced Computing (C-DAC).

Sun shines with grid-based workstations - Sun Microsystems has announced a new family of Ultra workstations - the Ultra 20, Ultra 40 and Ultra 45 - two of which come bundled with the company"s grid software.

Today I got very interesting message from MegaUpload.

All download slots assigned to your country (Thailand) are currently in use. Please try again later.

Only users with IPs in the United States, UK and Canada enjoy unlimited free download services. The number of slots made available to other countries is calculated based on that country"s contribution to covering our operation expenses. We can no longer afford to provide unlimited service to users from your country. We apologize for any inconvenience caused.

I have just found that ip2cc module doesn"t know the country of all IP from United Kingdom. The reason is ISO3166 used GB to identify United Kingdom but IANA used UK instead. To fix this problem, I added UK to iso3166.mysql so it will find the right country successfully.

Please update iso3166.mysql and apply it again.

There is a bug in system.module which caused Drupal 4.7.0 beta 4 to reject password changing according to array functions. This bug has been discussed in http://drupal.org/node/46759. The patch is available right now.

=== modified file "modules/system.module"
--- modules/system.module       
+++ modules/system.module       
@@ -68,7 +68,7 @@ function system_elements() {
     "#value" => "pass",
     "pass1" => array("#type" => "password", "#size" => 12, "#maxlength" => 24),