Important!!
Please make sure that your local machines clock matches the time on the
server. If the times do not match the server will not be able to verify
the TSIG key which is used to encrypt the transactions and all updates
will fail.

To install dnsupdate:

cd install
sh install.sh

No questions will be asked! The install script is just i first test.

Then, check dnsupdaterc.sample and read the man pages 
man dnsupdate 
man dnsupdaterc



The files installed are
/usr/bin/dnsupdate
/usr/share/man1/dnsupdate.1.gz
/usr/share/man5/dnsupdterc.5.gz

If you do not have the dnspython modules installed they will be installed
in python site-packages.