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Smooth procedure to upgrade Drupal 4.7.0 beta 4 to beta 5

I have just upgraded howforge.com to Drupal 4.7.0 beta 5. It works just well with a little patch. Actually, I follow my previous steps to upgrade Drupal 4.7.0 beta 3 to beta 4 with slightly modification.

  1. Make a copy of all files
  2. Extract Drupal 4.7.0 beta 4
  3. Find differences between the original beta 4 and the copy
  4. Extract Drupal 4.7.0 beta 5

Drupal 4.7.0 beta 5

It’s a bit too late to announce Drupal 4.7.0 beta 5. However, I am going to upgrade on my site and see all modules work as expected. According to the announcement, there are still more than 400 bugs and 13 critical bugs waiting for us to contribute. It would take a year...

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Register NOD32 in Thailand

I have been noticed about expiry of NOD32 on tomorrow! This is an urgent issue for me since I will be always attacked by Brontok.B whenever I attached my laptop to university’s network. Though, expiration only caused my laptop to have out-date virus signature, but it still recognizes Brontok.B. I am not sure there is not other virus or worm attempting to attack my laptop anyway.

As of today, it is very near the expiration time so I went out to purchase a new one. Luckily, it is very cheap, says 249 THB, about 6.5 USD. Actually, NOD32 is the cheapest anti-virus software in Thailand. Now it is in my hand. To use this new license, I have to register it first. Follow me.

I have just seen a post at . It is very interesting. They found . Check it out. It is the sign! To find out more, you might try Google Images with keyword .

iptables: IP Packets's Flow

One picture is better than thousand words. If you don’t understand how iptables work in my previous post about secure Linux gateway, it is because you don’t know how it works and what the chains are. To understand iptables’s flow at a glance, I found a brief explanation at IP Masquerading (NAT) using iptables.

ipmasq-html2x

Setup secure Linux gateway using iptables

Nowadays, you might have a network of computers linked as an intranet and you want to let them read/reply e-mail. So you have to connect them to Internet by something. The key component is a router aka gateway. You might just buy an ADSL router  with RJ45 port. Anyway, in case of you have too many machines, ADSL router maybe unable to handle all requests successfully due to design limitation. For example, ZyXEL Prestige 650-R can only handle 1024 concurrent connections. If the router has 1024 concurrent connections, next connection will be dropped silently.