How to connect to an OPEN wifi from a terminal.

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How to connect to an OPEN wifi from a terminal.

Postby edbarx » 2016-12-08 07:23

IFUP fails to connect to an OPEN wifi even when the proper ESSID has been entered in /etc/network/interfaces file. The following method is a way of connecting to an OPEN wifi using iwconfig.

The Procedure:
  1. First bring up the network interface wlan0 or whatever you have.
    Code: Select all
    #ifconfig wlan0 up
  2. Assuming your wifi hotspot name, ESSID, is freeopenwifi, run:
    Code: Select all
    # iwconfig wlan0 essid freeopenwifi
  3. Run dhclient to assign an ip address so that the connection becomes useable.
    Code: Select all
    # dhclient wlan0

Enjoy. :D
Last edited by edbarx on 2016-12-08 19:39, edited 1 time in total.
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Re: How to connect to an OPEN wifi from a terminal.

Postby edbarx » 2016-12-08 19:22

If someone knows how to disconnect other than brute forcing a disconnection like killing dhclient and using iwconfig wlan0 down, please post your method here. Sometimes, the only way to connect is by using these low level methods.
Debian == { > 30, 000 packages }; Debian != systemd
The worst infection of all, is a false sense of security!
It is hard to get away from CLI tools.
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edbarx
 
Posts: 5378
Joined: 2007-07-18 06:19
Location: 35° 50 N, 14 º 35 E

Re: How to connect to an OPEN wifi from a terminal.

Postby Head_on_a_Stick » 2016-12-08 19:40

Clear the DHCP lease with:
Code: Select all
# dhclient -r wlan0

Then either bring the connection down:
Code: Select all
# ifconfig wlan0 down

Or force a null connection:
Code: Select all
# iwconfig wlan0 ap 00:00:00:00:00:00

EDIT: thanks for the great guide, it is very useful :)
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Re: How to connect to an OPEN wifi from a terminal.

Postby edbarx » 2016-12-08 19:43

To Head-on-a-Stick: Thanks.
Debian == { > 30, 000 packages }; Debian != systemd
The worst infection of all, is a false sense of security!
It is hard to get away from CLI tools.
User avatar
edbarx
 
Posts: 5378
Joined: 2007-07-18 06:19
Location: 35° 50 N, 14 º 35 E


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