A simple service for looking up your IP address. This is the code that powers http://ifconfig.co
Just the business, please:
$ curl ifconfig.co
127.0.0.1
$ wget -qO - ifconfig.k0nsl.org
127.0.0.1
$ fetch -qo - ifconfig.k0nsl.org
127.0.0.1
A specific header:
$ curl ifconfig.k0nsl.org/user-agent
curl/7.43.0
$ curl ifconfig.k0nsl.org/x-ifconfig-country
Norway
As JSON:
$ curl -H 'Accept: application/json' ifconfig.k0nsl.org
{
"x-ifconfig-ip": "127.0.0.1"
}
$ curl ifconfig.k0nsl.org/x-config-ip.json
{
"x-ifconfig-ip": "127.0.0.1"
}
Pass the appropriate flag (usually -4 and -6) to your tool to switch between IPv4 and IPv6 lookup.
The primary domain https://ifconfig.k0nsl.org can be used to force IPv4 lookup or IPv6 lookups (i.e curl -4 or curl -6).
- Easy to remember domain name
- Supports IPv4 and IPv6
- Open source
- Fast
- Supports typical CLI tools (curl, wget and fetch)
- JSON output (optional)
- Country lookup for IP address through the MaxMind GeoIP2 database
- To scratch an itch
- An excuse to use Go for something
- Faster than ifconfig.me and has IPv6 support
Compiling requires the Golang compiler to be installed.
This application can be installed by using go get:
go get github.com/martinp/ifconfigd
ifconfigd -h
Usage:
ifconfigd [OPTIONS]
Application Options:
-f, --file=FILE Path to GeoIP database
-l, --listen=ADDR Listening address (:8080)
-x, --cors Allow requests from other domains (false)
-t, --template= Path to template (index.html)
Help Options:
-h, --help Show this help message
When you have built the package, copy the binary to /usr/bin. For example cp /root/go/bin/ifconfigd /usr/bin/ifconfigd or create a symlink.
Then run the application by issuing the following command (assuming paths are correct):
ifconfigd -t /home/k0nsl/ifconfigd/template.html -H X-Real-IP -c /home/k0nsl/geolite/GeoLite2-City.mmdb -f /home/k0nsl/geolite/GeoLite2-Country.mmdb
I run this on Alpine Linux and my copy can be found by visiting https://ifconfig.k0nsl.org (it looks horrible at the moment -- be warned)