Are you also talking about what legal licenses you need?
If so, that depends on your country.
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There are also additional license which you might need, but it all depends on what you want to achieve and offer your customers. You might need a live chat license, forum license etc...As for legal licenses Dan mentioned, it all really depends on where are you from. There are several licenses involved most probably, it all depends what you need to accomplish getting those.
yes i was talking about the legal licenses to run my web hosting company. i live in long island ny
The simplest thing would be to register a fictious name, also called a DBA (Doing Business As), with Nassau or Suffolk County, depending on where on LI you live. This allows you to operate as a sole proprietor under a business name.
If you're more serious about it, you might consider forming an LLC or corporation. This is done at the state level with the New York Department of State. The fees are higher, and there's more paperwork, but it gives you more legal protection.
Talk to a lawyer and accountant before you do anything. They'll be able to help you figure out which way to go.