Disconnecting from the internet.

stf92 · 08-10-2010, 04:14 PM

kernel 2.6.21.5, GNU (Slackware 12.0).

Hi:
Is there a way to disconnect my machine from the internet? I mean, by a software command. Even better if this command physically isolates me from internet. Please assume I'm not running a GUI. Thanks in advance.

XavierP · 08-10-2010, 04:18 PM

Look at the ifconfig command (man ifconfig). This will tell you how to disconnect from the network. Also look at unplugging your network cable...

carltm · 08-10-2010, 04:18 PM

route del -net 0.0.0.0 netmask 255.255.255.255

Running this will remove your default route, so you will still be
connected to your lan, but won't connect to the Internet.

stf92 · 08-10-2010, 05:54 PM

Thanks a lot.

stf92 · 08-10-2010, 06:29 PM

Quote:

Originally Posted by XavierP

Look at the ifconfig command (man ifconfig). This will tell you how to disconnect from the network. Also look at unplugging your network cable...

I did 'ifconfig eth0 down' and I got disconnected. Later on, I did 'ifconfig eth0 up' but this didn't reconnect me. Can you explain? (I do not have a router.)

XavierP · 08-10-2010, 08:10 PM

After running ifconfig do

Code:

dhcpcd eth0

That should query for an IP address. If it doesn't, just run ifconfig on it's own to see what your network cards are doing.

stf92 · 08-10-2010, 08:28 PM

Thanks XavierP.