In some situations, you might want unicast support in Access Grid because multicast is not available or impossible to implement, e.g., VPN. Fortunately, Access Grid comes with built-in unicast-to-multicast bridge support especially Access Grid 3. However, it is a kind of undocumented feature. I found a few tutorial how to run it. Actually, there are many possibility to run a bridge in Access Grid 3.

I am getting trouble to access some web sites without any error messages. It seems some packets being loss. I would like to identify the problem to fix it as soon as possible. The tool I used is not the classic traceroute because I can ping to the web site successfully. ICMP is not enough. I guess that the problem should be only effective to TCP or something in higher layer.

Someday, you might want to monitor popular internet services on several hosts. It should be quick and simple so you don't have to install so long software packets to meet the dependencies. I have ones for you. They are written in pure Perl to monitor HTTP service and MySQL service.

I have read an interesting blog regarding the topic of awesome mechanism built-in any Linux. Why Linux can be updated without rebooting? This is a feature of UNIX-like operation system as well as its filesystem implementation.

ในที่สุดก็สามารถใช้ GVim อ่านและพิมพ์ภาษาไทยได้อย่างถูกต้อง ถ้าจะให้ถูกต้องบอกว่าเกือบถูกต้อง เพราะยังมีความประหลาดนิดๆ หน่อยๆ ตอนกด backspace เพื่อลบวรรณยุกต์ แทนที่วรรณยุกต์จะหาย ก็หายหมดรวมไปถึงตัวอักษรตำแหน่งก่อนหน้าอีกด้วย คาดว่าเกิดจากขั้นตอนการเปลี่ยนตัวอักษรอัตโนมัติ แต่ดันลืมเปลี่ยนกลับก่อนที่จะลบ ต้องขอบคุณเวบนี้

I have just compiled and installed Gaim 2.0.0 Beta 4 for a few days. However, I just have a chance to chat via IRC in local IRC server in Thailand. Surely, the encoding is not UTF-8. Exactly, it is TIS-620 for Thai characters. Gaim 2.0.0 Beta 4 suddenly crashed. It always crashs whenever I tried to join into any channel with Thai characters in them. So I consulted Gaim and found a bug report looking very similar to my case. It indicated that Beta 5 should fix this problem. Oops! Beta 5 has just released last night.