GeoFence is a fast TCP reverse-proxy to block countries from connecting to your service. Written to whitelist players in my community accessing my minecraft server while keeping out the bots.
Prerequisites
To determine the country of an address, GeoFence uses the GeoLite2 IP Database. Sign over your firstborn to Maxmind to receive a copy of their binary database.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.