Archive for May, 2006

CAPTCHA : 0wn3d

Monday, May 15th, 2006

OK so it’s confirmed : captcha is no longer a foolproof method to avoid spammers.

Although not all captchas can be circumvented with software, many does.
Thanks to Sam who has informed us that this is the case.

btw; regarding complaints that captcha is alienating disabled visitors, there’s a workaround - provide a link which will play an audio, which tells the alphabets in the captcha. However, this is not very easy to implement indeed at the moment.

NetVision wifi card

Monday, May 15th, 2006

I’ve got a wifi PCMCIA card (brand: Netvision) that I bought more than a year ago, but have never been used (since Nokia 9500 already got wifi capability). However, last weekend I needed a fast Internet connection on my laptop when I was on Menara Peninsula hotel. Noticing that I was in a hotspot zone, finally I got to use this. The card’s FCC ID is PQP-WP288P.

I realized that I forgot to brought the driver with me, and the laptop has been reinstalled without that driver. Then I found out that the driver for this bloody card is almost impossible to find :)

Finally I managed to find it, so here it is:
[ the discussion thread on the driver ]
[ download the driver from here ]

There are also several drivers available from DriverGuide.com, however none worked for me - the one from SMC just plain doesn’t work (seems like it detected that this Am1772-based wifi card is not an SMC brand), and the generic driver also doesn’t work at all.
But of course, your mileage may vary.

So after the driver was downloaded & installed, then I was able to access the Internet with speed of 1 Mbps. Kudos to Menara Peninsula hotel.

mod_security and WordPress

Monday, May 15th, 2006

I just upgraded this blog to the latest version of WordPress, and I noticed that I wasn’t able to post. Got 403 Forbidden error message.

Checking mod_security’s log file, I saw these messages:

POST /wp-admin/post.php HTTP/1.1
mod_security-message: Access denied with code 403. Invalid cookie format: Cookie value is missing #1
mod_security-action: 403

After googling around, turned out it’s because of a setting in a mod_security.
Basically, you’ll need to replace SecFilterCheckCookieFormat to SecFilterNormalizeCookies in your mod_security config.

After doing this and restarting Apache, I can post again to WordPress.

Hope this helps somebody else with similar problem.