Figured I would give this one more shot. I am new to this forum but am very impressed with all the generated feedback from all the posts. I am starting a webhosting company and am in need of a DNS web based management tool that will allow users to create their own username and password as well as add, delete, manage their domains. I will be offering this all for free so I would like to keep the cost down to as little as possible. I have seen such sites as www.generaldns.com that offer this but am unsure what they use. Any help would be appreciated.

Thank you in advance.

It's not very difficult to code i'd guess. You can get a perl script to delve into the zone files and modify them.