Connecting to a Wireless LAN with Linux, Part 2 - page 4
Multiple profiles are created with the
redhat-config-network utility. Users can then easily switch profiles for different locations. When more than one profile exists, running
redhat-config-network opens first with the profile chooser.
On Debian, use the whereami utility.
If you run your laptop on battery a lot, you can save power by turning off the wireless adapter when you're not using it. For PCMCIA adapters, use the pcmcia-cs tools. These commands stop and restart the card without unloading the drivers:
# /sbin/cardctl suspend # /sbin/cardctl resume
These commands eject and activate the card after insertion:
# /sbin/cardctl eject # /sbin/cardctl insert
Check the card status:
$ /sbin/cardctl status
For PCI adapters use the old familiar
# /sbin/ifdown eth1 # /sbin/ifup eth1
Check the PCI adapter status: