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Old 08-27-2013, 11:26 AM   #1
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Spoofing laptop information with unknown wireless networks

I now have a stable network manager setup on my Thinkpad T400. Currently I only support my own home network with one wired and one wireless configuration.

Next I'd like to venture into the jungle and be able to use the laptop with other wireless networks outside the sanity and safety of my home lan.

I want to spoof my hostname and MAC address. Nothing mysterious, just common sense privacy and a little monkey-wrenching against sick people who think they need to track every human on the planet.

By script I can change both the hostname and MAC address. That is not the question in this thread.

My question is when is the appropriate time in the boot sequence to do that? I don't know how network manager functions or at what point network manager exposes a laptop's hostname and MAC address. Obviously I need to spoof those parameters before network manager discloses this information the first time.

I don't want and have no need to change either parameter when connecting to my home lan.

At this point I have my home lan wired and wireless configurations set to automatically connect. Seems to make sense because when I'm home I trust myself and when I'm not those connection points won't exist and network manager "should" stop trying to connect anything else because nothing else would be configured to automatically connect. I'm thinking (guessing) that I then use a network manager applet wrapper to scan for existing networks. I presume then before I scan for any open networks is when I need to spoof the hostname and MAC address.

Ideas and thoughts appreciated.
Old 08-27-2013, 12:26 PM   #2
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Both network manager and wicd are started in /etc/rc.d/rc.M, so you could make your own script to change the hostname and MAC and run it before this.

However, I'm pretty sure a router only logs your hostname and MAC after you connect. So, in theory, you could just change it yourself before you connect.

You are lucky you can change your MAC, because I have a wifi card where it won't let you.

I also recommend against connecting to unencrypted networks as it's pretty easy for people to setup phishing sites on these networks and then grab your login info, etc.


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