No Broacast, no connection! (network manager issue)

[Jeffrey F. Bloss]

Ricardo C O Freitas wrote:

> Hi there!
> 
> I have an atheros  pci card on a 6.06 Ubuntu desktop here.
> 
> When I cancel the ESSID broacasting (for safety reasons), I can't get
> the card connected!

There's no real reason to disable ESSID broadcasts. Your WAP is still
visible to the world, it will still hand out that information if asked
properly, and since ESSID is sent in the clear even with WEP/WPA
enabled anyone with a "sniffer" can see it when someone who already
knows it connects. So you're really not hiding anything at all from
anyone who would benefit from knowing it.

The same  more or less applies to MAC address filtering too, BTW.
Trivial to discover, and even more trivial to spoof.

The alternative is to track down every place where you might need to
"hard wire" your network ID and do so. That would include
your /etc/network/interfaces, wpa_supplicant.conf file if you're
using supplicant, any "connection manager" configurations that might
store that information, etc...
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