4. http://www.chiark.greenend.org.uk/mailman/listinfo
5. http://www.chiark.greenend.org.uk/~ian/adns/
6. http://www.chiark.greenend.org.uk/~ian/adns/adns.tar.gz
4. http://www.chiark.greenend.org.uk/mailman/listinfo
5. http://www.chiark.greenend.org.uk/~ian/adns/
6. http://www.chiark.greenend.org.uk/~ian/adns/adns.tar.gz