mmdb-whois-server

Serve MMDB files over the WHOIS protocol.

See the following post for more information: https://community.ipinfo.io/t/create-a-whois-server-from-scratch/5574

Usage

First download an MMDB file, for example the free Country & ASN database from IPinfo:

ipinfo download country-asn -f mmdb

Then install the dependencies and run the server:

poetry install
# Use a non-privileged port instead of 43 so that we don't need to be root.
poetry run mmdb-whois-server --port 8043 country_asn.mmdb

Alternatively, you can use Docker:

docker run --rm -it -p 8043:43 -v $(pwd):/data \
    ghcr.io/maxmouchet/mmdb-whois-server:main /data/country_asn.mmdb

Finally, query the server:

whois -h localhost -p 8043 -- 1.1.1.1
# as-domain:       cloudflare.com
# as-name:         Cloudflare, Inc.
# asn:             AS13335
# continent:       OC
# continent-name:  Oceania
# country:         AU
# country-name:    Australia

Public server

An instance of this server is hosted over IPv4 and IPv6 at whois.dscp.dev and serves the free Country & ASN database, updated daily:

whois -h whois.dscp.dev -- 1.1.1.1
# as-domain:       cloudflare.com
# as-name:         Cloudflare, Inc.
# asn:             AS13335
# continent:       OC
# continent-name:  Oceania
# country:         AU
# country-name:    Australia
#
# % IP address data provided by https://ipinfo.io