Every so often you need to check your external IP address from the command line or terminal in Linux. If you work a lot with VPN's these tools can be very useful. The three basic tools you can use to get your external IP address are DIG, cURL, and WGET. Either one of these tools will do the job. Once you get your IP, you can use the tools to add the content into a bash script you are writing, or whatever else you may need to use it for.
- dig - A tool used to obtain DNS configurations
- cURL - curl is used in command lines or scripts to transfer data
- wget - Wget is a free software package for retrieving files using HTTP, HTTPS, FTP and FTPS, the most widely used Internet protocols.
1. DIG Tool (DNSUtils)
If you need to install dig you can install dnsutils on a debian or ubuntu system using this command.
sudo apt update && sudo apt install dnsutils -y
Using DIG to get the IPv4 and IPv6 address from akamai is a great tool. Akamai is one of the largest CDN networks in the world.
dig @ns1-1.akamaitech.net ANY whoami.akamai.net +short
2. cURL
If you need to install cURL you can install cURL on a debian or ubuntu system using this command.
sudo apt update && sudo apt install curl -y
Then use one of these command to get your external IP Address
curl ifconfig.co
curl ifconfig.me
curl icanhazip.com
3. wget
If you need to install wget, you can install wget on a debian or ubuntu system using this command
sudo apt update && sudo apt install wget -y
Then use one of these command to get your external IP Address
wget -qO- ifconfig.co
wget -qO- ifconfig.me
wget -qO- icanhazip.com
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#getipaddress #curl #wget
