Hi
Is there a way to update my dns based of the ip of another dns?
For example to use the url mysite.com and to update my dns with the same dns of this url.

You can create a CNAME record for your host pointing to the target host to achieve this. This way you won't even have to update the IP address.

Thanks rahsharma. It works great

Just another question.
Is it possible to setup the cname to send the requests by replacing my dns with the original?
For example.
the original url is abc.com
my cname is abc.mydns.dynu.net
when sending the url abc.mydns.dynu.net/page1 to be translated to abc.com/page1