dae's blog

OpenVPN with UFW


I feel very shameful to admit that, for past several months, I left my server being wide open. She didn’t receive any protection from any local firewall. Of course, the IT depts. of my university and my faculty have done great jobs in implementing the firewall. These protect me from outside threat but my server still sit idly feeling clueless of any person who has a chance to plug into university network. That’s why I was trying to enable firewall on my server.

NTFS SAMBA on Fedora 10


Just tried the new Fedora 10 on my PC. The problem is that I want to export all my NTFS drives on F10 via Samba, so that any machine can still access my file even though I am not on Windows. NTFS-3G works quite well and setting up Samba is no longer a problem. Of course, firewall must be adjusted to allow samba protocol.



Recently, I have got several spams at approx. 1,000 per day. I am clueless how do they appear on my site. I’ve used reCAPTCHA, I’ve used mollom, I’ve used blockanonymouslink, but the spam still coming through.

pptx attachment on drupal

I posted my slides on my web as a pptx file a few weeks ago. Suddenly after that, students gave some comment that when they downloaded the file, the file came as .zip. Even though the file on the server is not zipped and is name exactly as .pptx. Of course, I have tested my upload, but only on Firefox, which definitely has no problem. From the student comment, I tried it on IE and managed to duplicate the error. My first thought is that it must be something about the MIME type.


Anybody could notice that there are at least two urls that direct to this page. Originally, I registered for and . Both works well thanks to Drupal site configuration method. Drupal use name based resolution. All I have to do is to edit the setting.php to point to the same database for both of the name. Users can access my site using any of these urls and drupal simply direct it to the same place (because all information is stored in the database).

Team Member

Currently, there are 8 teams with the total of 27 students. around 11 more students haven’t submit their team member yet.

New Cell Phone


My old phone is broken, she freezes up every now and then for weeks. So, yesterday, I bought a new cell phone. After a series of reviews and lots of constraints optimization, I ended up with Nokia 3120 classic. Let’s start from the requirements, listed by higher impact.

Seminar Com Eng I, second semester 2008


Discussion on this course should be done in the forum. The department account (g51xxx) can be used to login for this website.

  • you can download course syllabus here


  • 1st Assignment Reminder

Students are required to submit their paper to be presented to me within Tue. 11 Nov, before midnight.

Back from Faculty Talk


In our faculty, there is an informal discussion regarding faculty on every last Friday of the month. The dean put much priority on this talk such that he will join every time his schedule allows him so. For this particular month, he officially call every relatively new faculty to join a seminar trip. (FYI, relatively new is anyone who joins the faculty less than 10 years ago.) The trip was good, in both official aspect and recreational aspect. Several interesting topics were discussed in the seminar also many topics of useful information are shared.

LDAP authentication

Just set up LDAP authentication. Now, anybody who has an account on CP department can authenticate to my website. All student are encouraged to log in before posting any comment in the forums.



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