multiple SOA in one DNS linux server

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http://serverfault.com – any one could you please clarify my query. i am having two domain like aa.com and bb.com. i like to delegate to my own DNS server, so i could create A record based on requirement. DNS provider is ready to configure NS record and point to my DNS server, could i able configure multiple domain's SOA, A and CNAME in our own DNS server(LINUX). Thanks in advance... Regs, Anbu (HowTos)