There are more Python-based applications that offer a complete DNS looking glass solution. Dyn dns_lg (https://github.com/dyninc/dns_lg) is a DNS looking glass solution that depends on ldns (http://www.linuxfromscratch.org/blfs/view/cvs/basicnet/ldns.html), a fast and efficient DNS library and ldns-python package. ldns depends on SWIG interface compiler (http://www.swig.org) to connect its core modules developed in C and Python code used. Make sure you have SWIG installed on your computer:

1. You may install it using the following command in Ubuntu/Debian-based systems:

      $ sudo apt-get install swig

2. Download the source of ldns using the following command:

      $ wget -nc http://www.nlnetlabs.nl/downloads/
        ldns/ldns-1.7.0.tar.gz

3. Unzip the archive:

      $ tar -xzf ldns-1.7.0.tar.gz

4. Move to the ldns directory:

      $ cd ldns-1.7.0/

5. Now you may install ldns:

          $ ./configure --prefix=/usr       
                      --sysconfdir=/etc       
                      --disable-static        
                      --disable-dane-ta-usage 
                      --with-drill 
                --with-pyldns           &&
          make
    
          $ sudo make install