I have read a lot of DNS related threads on this forum but I am still finding it difficult to understand how this whole DNS business works and where to start from to run my own DNS servers. The situation is like this. I have ISPConfig and working on a Debian sarge server. I am using a dynamic IP through the no-ip DNS service. My domain (the one I have heard you guys calling technical domain) is churchill.hopto.org. I have other domains that are on my service provider's DNS server. They are somehow hooked to churchill.hopto.org (I cant find a better word to explain this). Anyway, I created sites using ISPConfig and everything is working as it should. My question is how do I make use of churchill.hopto.org to run my own DNS server. I also have a server online, with a static IP where I could install a second ISPconfig system. All help will be appreaciated.