Some more quentions...
Thanks very much your answer. I solve the first question, and the third question I forward to my broadband provider.
I have three DNS entries register in Brasil Domain Register, but ISPConfig has only two options. What I have to do? Do I input in the named.conf.master?
Another question, how do I have do to in the Bind confs to solve this other problem?
ERROR: sol.innovat.com.br. has a CNAME entry (sol.innovat.com.br.->sol.innovat.com.br.); it is not valid to have a CNAME entry entry for the hostname in an NS record (for sol.innovat.com.br.). See RFC1912 2.4 and RFC2181 10.3 for more information.
Note: This test checks with our local DNS server (since the NS record hostnames may not be handled by your DNS server), and therefore may be cached.
A put my name of DNS Server in A - sol IN A xxx.xxx.xxx.xxx?