I have realized by digging within xt_geoip_build that the expected geoip provider has been changed from Maxmind to db-ip since 3.8-1 (debian sid). This means that running xt_geoip_build with csv downloaded from Maxmind can no longer work. I am aware that Maxmind recently introduced "Significant Changes to Accessing and Using GeoLite2 Databases" and introduced a new end-user license agreement. However, is there a way to continue to use Maxmind geoip db with latest debian xtables-addons for people who detain the required license key in order to download GeoLite2 databases? -- Jean-Christophe