Fun Things in Life

Without any third party software (like Toast) it is actually easy to create ISO images in OS X.

1. If you have a CD/DVD and want to create the ISO image, just use the Disk Utility in OS X.
   • Open Disk Utility;
   • Select the CD/DVD;
   • Select New Image;
   • Make sure that the Image Format is DVD/CD Master;
   • This will create a .cdr file, just rename it to .iso (it is actually an ISO image)
2. If you have an existing DMG file, you can use hdiutil to convert it: 
   • hdiutil convert source.dmg -format UDTO -o target.iso

I know this might not be new to everyone… but…

The Problem: I have been quite a fan of Mac. The problem is that SingNet provides a 2Wire ADSL Modem + Wireless router which is not compatible from the box with Mac.

The Solution: The 2Wire HomePortal 2700HG is set to use 64-bits WEP encryption. However, Mac OS X only supports 40-bits or 128-bits WEP. So, the only way is to set the 2Wire HomePortal 2700HG to 128-bits WEP. Here’s the steps:

1. Connect the machine using ethernet cable to the 2Wire (or use any existing connected computer).
2. Go to http://homeportal/xslt?PAGE=C05 or http://192.168.1.254/xslt?PAGE=C05
3. Skip Network name
4. You can set either SSID broadcast ON or OFF
5. Under Wireless Security, make sure that the box is ticked
6. Authentication: Set to WEP-SHARED
7. Use customized WEP key (encryption key) with 26 numbers (for 128-bits) (I suggest you use the original WEP key 2 times + 6 first digit as in the 2Wire box information provided in SingTel’s site, for the rest of the world using 2Wire, just use any 26 numbers)
8. Leave the rest of settings as default, click Save to update your current setting.
9. Now go to your Mac, airport and connect to your 2Wire and surf!!

** You may always want to make sure that Airport is your prioritized connectivity as shown in Apple’s KB.

The Problem: How do one change the MAC Address on a Mac OS X?

I have decided that my blog posting is too litte, thus, I would put some of those hacks that I found interesting up. Hope that you will enjoy it.

The Solution:

1. If you are on Mac OS X 10.4.x (Tiger), you are in luck. To change the MAC address:
   • You might want to record down your original MAC address by doing:

     $ ifconfig en0

   • To change the MAC address:

     $ sudo ifconfig en0 lladdr xx:xx:xx:xx:xx:xx:xx:xx

   • Check that your MAC address is changed:

     $ arp -a | grep xx:xx:xx:xx:xx:xx:xx:xx

2. Now, what if you have Mac OS 10.0.x - 10.3.x…? Peter Bartoli has put up a page on showing you how to patch your OS X Kernel here with the appropriate patch to change your MAC address.