echoip/README.md

ipd

A simple service for looking up your IP address. This is the code that powers http://ifconfig.co

Usage

Just the business, please:

$ curl ifconfig.co
127.0.0.1

$ http ifconfig.co
127.0.0.1

$ wget -qO- ifconfig.co
127.0.0.1

$ fetch -qo- http://ifconfig.co
127.0.0.1

Country lookup:

$ http ifconfig.co/country
Home, Sweet Home

As JSON:

$ http --json ifconfig.co
{
  "ip": "127.0.0.1",
  "country": "Home, Sweet Home"
}

Pass the appropriate flag (usually -4 and -6) to your tool to switch between IPv4 and IPv6 lookup.

The subdomain http://v4.ifconfig.co can be used to force IPv4 lookup.

Features

• Easy to remember domain name
• Supports IPv4 and IPv6
• Supports HTTPS
• Open source under the BSD 3-Clause license
• Fast
• Supports typical CLI tools (curl, httpie, wget and fetch)
• JSON output (optional)
• Country lookup for IP address through the MaxMind GeoIP2 database

Why?

• To scratch an itch
• An excuse to use Go for something
• Faster than ifconfig.me and has IPv6 support

Building

Compiling requires the Golang compiler to be installed. This application can be installed by using go get:

go get github.com/martinp/ipd

Usage

$ ipd -h
Usage:
  ipd [OPTIONS]

Application Options:
  -f, --file=FILE          Path to GeoIP database
  -l, --listen=ADDR        Listening address (default: :8080)
  -x, --cors               Allow requests from other domains
  -r, --reverse-lookup     Perform reverse hostname lookups
  -p, --port-testing       Enable port testing
  -t, --template=          Path to template (default: index.html)

Help Options:
  -h, --help               Show this help message