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Martin Polden 4a9710dcea Update readme
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ipd

Build Status

A simple service for looking up your IP address. This is the code that powers https://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 and city lookup:

$ http ifconfig.co/country
Elbonia

$ http ifconfig.co/city
Bornyasherk

As JSON:

$ http --json ifconfig.co
{
  "city": "Bornyasherk",
  "country": "Elbonia",
  "ip": "127.0.0.1",
  "ip_decimal": 2130706433
}

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

The subdomains https://v4.ifconfig.co and https://v6.ifconfig.co can be used to force IPv4 or IPv6 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 and city lookup through the MaxMind GeoIP 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, --country-db=FILE                                  Path to GeoIP country database
  -c, --city-db=FILE                                     Path to GeoIP city database
  -l, --listen=ADDR                                      Listening address (default: :8080)
  -r, --reverse-lookup                                   Perform reverse hostname lookups
  -p, --port-lookup                                      Enable port lookup
  -t, --template=FILE                                    Path to template (default: index.html)
  -H, --trusted-header=NAME                              Header to trust for remote IP, if present (e.g. X-Real-IP)
  -L, --log-level=[debug|info|warn|error|fatal|panic]    Log level to use (default: info)

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