/usr/lib/x86_64-linux-gnu/libGeoIP.so is in libgeoip-dev 1.6.12-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libGeoIP.so.1.6.12
/usr/lib/x86_64-linux-gnu/libGeoIP.so.1.6.12