import dns.query
import dns.tsigkeyring
import dns.update
import sys
keyring = dns.tsigkeyring.from_text({
'kall' : 'PKTkVUNFVe3j2duyfr1Sjg=='
})
update = dns.update.Update( '
link.com', keyring=keyring)
update.add('www',86400 ,'a',127.0.0.1)
response = dns.query.tcp(update,'192.168.5.2')