Minggu, 30 Januari 2005

Creating favicon.ico Files

Visitors to TaoSecurity.com may notice that the icon appearing in the Web browser address bar has changed from the FreeBSD daemon to the yin-yang "S" pictured at left. I created this icon using the following process, detailed by DHCPDump author Edwin Groothuis.

First I used xv to crop the TaoSecurity logo, set the image size at 16x16, and save the image (taosecurity.png) in png format.

Next I installed Netpbm using the graphics/netpbm FreeBSD port. Once installed I executed the following command to convert my png file to the desired favicon.ico:

orr:/home/richard$ pngtopnm taosecurity.png | ppmtowinicon -output favicon.ico

When done I had the icon I needed:

orr:/home/richard$ file favicon.ico
favicon.ico: ms-windows icon resource - 1 icon

I copied the favicon.ico file to my Web root, and then added the following to the HEAD section of my index.html file:

<LINK REL="SHORTCUT ICON" HREF="favicon.ico">

I had to clear my Web browser cache to see the new icon. Incidentally, I don't see the icon in Internet Explorer. Using Firefox, I do see it.

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