nice howto with screenshots at cisco support forums
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atpitude install dhcp_probe
become root!
dhcp_probe -f -o /home/user/dhcp.pcap eth0
or search in vlans!
dhcp_probe -f -o /home/user/dhcp.pcap eth0 -Q <vlan-id>
yum whatprovides <name-of-the-file> 
pros:
- design
- screen
- fast
- wifi
cons:
- no flash
- no google documents full options
- price
- no bluetooth
works on maverick but not on natty? sound familiar? ubuntu screwed something up, but the solution is quite simple:
sudo add-apt-repository ppa:pmcenery/ppa
sudo aptitude update && sudo aptitude install gvfs ipheth-dkms ipheth-utils
works like a charm 
finally I managed to update my iphone via virtualbox!
itunes version: 10.4.0.80
virtualbox version: 4.0.6-71344
be sure to have “nat traversal” turned on!
nicely put in one table – see equivalent commands for rpm, dpkg, emerge and pacman.
google it with “intitle:index.of” in the end