#MMDB
How we made our MMDB files a 33% smaller

https://ipinfo.io/blog/how-made-mmdb-files-smaller
October 29, 2026 at 1:00 AM
How we made our MMDB files a 33% smaller | Discussion
How We Made Our MMDB Files a Third Smaller Without Changing a Byte of Data
How IPinfo shrank MMDB files by up to 80% without changing lookup results, and open sourced the optimizer so anyone can use it.
ipinfo.io
October 29, 2026 at 2:20 AM
How we made our MMDB files a 33% smaller
comments · posted on 2026.10.25 at 13:33:02 (c=0, p=10)
October 29, 2026 at 12:53 AM
Drop #789 (2026-10-26): Mile-High Drop

Today's Drop discusses three resources. First, it highlights an optimized method to reduce the size of MMDB files by using a bottom-up processing approach, which resulted in significant file size reductions. Second, it showcases Font Revival, a site […]
Original post on mastodon.social
mastodon.social
October 27, 2026 at 2:33 AM
How we made our MMDB files a 33% smaller
Discussion | hackernews | Author: mmaia

#Algorithms
How we made our MMDB files a 33% smaller
How IPinfo shrank MMDB files by up to 80% without changing lookup results, and open sourced the optimizer so anyone can use it.
ipinfo.io
October 25, 2026 at 11:30 PM
October 25, 2026 at 11:14 PM
We reduced our MMDB file sizes by 31% across 89 databases, with savings up to 80% for individual files.

Same data. Same lookup results. Smaller memory footprint.

Here's how we did it, and why we open-sourced the tool → https://ipinfo.io/blog/how-made-mmdb-files-smaller

#OpenSource #MMDB #IPData
October 14, 2026 at 2:55 PM
geoip (⭐️ 6611)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
October 10, 2026 at 10:11 AM
geoip (⭐️ 6601)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
October 7, 2026 at 2:54 AM
geoip (⭐️ 6601)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
October 6, 2026 at 4:53 PM
geoip (⭐️ 6555)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
September 26, 2026 at 4:21 AM
geoip (⭐️ 6546)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
September 24, 2026 at 2:42 AM
geoip (⭐️ 6543)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
September 22, 2026 at 5:52 PM
geoip (⭐️ 6528)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
September 17, 2026 at 7:34 PM
I might get hate for this, but #MarryMyDeadBody is the superior one, imo. I watched #TheRedEnvelope with such high hopes because MMDB was SO SO SO GOOD, but it really did fail to capture the same emotion. It didn't make me feel what I should have, and it definitely wasn't as funny.
September 13, 2026 at 4:12 AM
geoip (⭐️ 6485)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
September 3, 2026 at 9:58 PM
Your IPinfo database downloads just got a lot lighter.

We’ve reduced MMDB file sizes by up to 81%, while keeping every network, field, & lookup result intact.

Across 80 databases, the catalog is now 24.4 GB smaller.

What changed: https://ipinfo.io/blog/ipinfo-smaller-databases

#DevOps #IPData
September 1, 2026 at 2:54 PM
geoip (⭐️ 6446)

🌚 🌍 🌝 GeoIP 增强版,自由定制多种格式 GeoIP 文件,包括但不限于 V2Ray dat 格式文件 geoip.dat、MaxMind mmdb 格式�...#gogo
August 20, 2026 at 7:56 AM
For you, Ollie. Yes, I didn't pronounce the ü well in müssen, but didn't feel like redoing it, since I need to wake up in 4 hours. Also, using Mädchen in this context felt creepy.
sndup.net/mmdb
September 27, 2023 at 2:43 AM
ip66.dev - Une base de géoloc IP libre et compatible MaxMind
ip66.dev - Une base de géoloc IP libre et compatible MaxMind
Hello les amis, voici ma petite trouvaille du jour, idéale pour ceux qui jouent en ce moment avec des adresses IP : ip66.dev . C'est une base de géolocalisation IP et entièrement libre, livrée au format MMDB (le même que celui de MaxMind) qui permet de remplacer direct un fichier GeoLite2 dans vos libs existantes (Python, Go, Node.js), sans toucher au code. L'équipe de Cloud 66 maintient cette liste à jour sous licence CC BY 4.0 et tout est utilisable simplement en récupérant le fichier mmdb. Pour le télécharger : curl - LO https : // downloads . ip66 . dev / db / ip66 . mmdb Ensuite pour interroger une IP, l'outil mmdbinspect de MaxMind fera le job. Si vous l'avez pas déjà, une ligne suffit : go install github.com/maxmind/mmdbinspect/cmd/mmdbinspect@latest mmdbinspect -db ip66.mmdb 8.8.8.8 À l'intérieur de la réponse, vous trouverez le numéro et le nom de l'ASN, le pays avec son code ISO, le continent, en IPv4 et IPv6 : Au lieu de moudre des heuristiques opaques, ip66 préfère tout simplement agréger des sources à partir des 5 registres régionaux (AFRINIC, APNIC, ARIN, LACNIC, RIPE NCC) pour les allocations, le BGP via RouteViews et RIPE RIS pour les vues publiques d'annonces, le RFC 8805 geofeed quand les opérateurs déclarent eux-mêmes leurs localisations, sans oublier GeoNames pour tout ce qui concerne les libellés. Du coup chaque enregistrement dispose de son propre un niveau de confiance (Very High, High, Medium, Low) selon la qualité de la source. Y'a même des marqueurs pour identifier les IPs VPN / Tor et compagnie. Notez par contre, que c'est du country-level, et pas du city-level comme GeoIP2 City ou IPinfo Core, mais pour enrichir des logs, sortir des stats par pays ou bloquer un continent entier, c'est largement suffisant ! Et si vous voulez l'exposer en API plutôt que la requêter en local, ça se branche nickel sur le mmdb-server , un petit serveur Python qui sert les fichiers MMDB en HTTP. Vous lui pointez ip66.mmdb dans son dossier db/ et hop, c'est plié ! Bref, un fichier mmdb à DL, et votre serveur sait maintenant que 8.8.8.8 c'est l'oncle Google.
korben.info
May 2, 2026 at 8:18 AM
Aggregates IP location data from multiple providers into CSV and MMDB formats
January 6, 2026 at 6:42 AM
Region Blocking on a UniFi Gateway.
UniFi Gateway GeoIP
### General Country Restriction Older versions: Security > Country Restriction Security > Country Restriction Newer versions: CyberSecure > Region Blocking CyberSecure > Region Blocking The geo map shows traffic by region. Geo Map DPI is not required for GeoIP to function, but clearing the DPI history will also clear GeoIP history. UniFI Gateway uses a binary (.mmdb) format optimised for fast lookups at scale, and is provided by MaxMind. /usr/share/dpi/geoip/GeoLite2-Country.mmdb The database contains IPv4 or IPv6 network blocks in CIDR format, along with a unique identifier for the network's location, as specified by GeoNames. In/Out Geo IP polices are created. They allow private IP ranges, IP addresses of configured UniFI networks, the WAN IP of the Gateway, and established connections. Then use the geoip module to drop matched traffic. These polices do not apply to locally generated packets from the gateway. iptables -t filter -v -L -n Chain UBIOS_OUT_GEOIP (1 references) pkts bytes target prot opt in out source destination 0 0 RETURN all -- * * 0.0.0.0/0 0.0.0.0 0 0 RETURN all -- * * 0.0.0.0/0 255.255.255.255 0 0 RETURN all -- * * 0.0.0.0/0 10.0.0.0/8 0 0 RETURN all -- * * 0.0.0.0/0 172.16.0.0/12 0 0 RETURN all -- * * 0.0.0.0/0 192.168.0.0/16 0 0 RETURN all -- * * 0.0.0.0/0 100.64.0.0/10 0 0 RETURN all -- * * 0.0.0.0/0 169.254.0.0/16 0 0 RETURN all -- * * 0.0.0.0/0 10.6.0.0/24 0 0 RETURN all -- * * 0.0.0.0/0 127.0.0.0/8 0 0 RETURN all -- * * 0.0.0.0/0 195.1.1.1 711 217K RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 -m geoip --destination-country AF 87 24641 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 You can also create county-related firewall rules, these just add the block rule and does not allow established connections.
cg1network.com
February 8, 2026 at 1:43 PM
#IsmuasMonthOfMusic #MusicChallenge #MusicSky
Day 12: A song for the friends you’d commit crimes with

Ina Müller & Johannes Oerding (her ex)
"Wohnung gucken"
www.youtube.com/watch?v=MMDB...
Roughly translated:
Let's go out and look into people's living rooms/windows.
Ina Müller & Johannes Oerding "Wohnung gucken" 12.9.2020 Hamburg Stadtpark
YouTube video by Karin Eden
www.youtube.com
July 12, 2026 at 8:13 AM