let’s begin:
ssh into destination machine
get latest gdnsd:
wget https://github.com/blblack/gdnsd/archive/master.zip
unzip master.zip

get into the unpacked folder
cd gdnsd-master/

Install dependencies :
apt-get install libev-dev libcap-dev ragel
create user gdnsd:
useradd gdnsd
run autogen
./autogen.sh
run configure
./configure --with-rootdir=/home/gdnsd --prefix=/home/gdnsd --exec-prefix=/home/gdnsd
make && make install
now you’re done.
one more thing… 🙂
you need to get geoip database, this database can be downloaded from maxmind
wget -q -O "/home/gdnsd/etc/geoip/GeoLiteCity.dat.gz" http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz