1.3 KiB
IP
ip is a program that can edit and display the configurations of network
interfaces, routing and tunnels.
It is a replacement for the program ifconfig.
Usage
List all network interfaces
You can list network interfaces by running:
ip link list
Enable/disable a network interface
Assuming the interface is named wlan0 run the following:
ip link set wlan0 up
Disabling works accordingly by running:
ip link set wlan0 down
Get Outside IP
For VPN and other applications using a tunnel it can be useful to check the
outside IP of your system.
The following command uses the dig command.
It is either bundled in the dig package - like in
Arch Linux - or in the dnsutils
package - like in Ubuntu - or even another package depending on the distribution
used.
After installation the following command can be used to get the outside IP
address of your system.
dig +short txt ch whoami.cloudflare @1.0.0.1
There is an alternative to this using wget.
It uses a call to DuckDuckGo and requests the outside IP from there.
The mentioned command is the following.
wget -qqO- 'https://duckduckgo.com/?q=what+is+my+ip' | grep -Pow 'Your IP address is \K[0-9.]+'