What are the normal ports that are supposed to be open? on a windows IIS server

I was wondering what are considered normal ports to be open on a Win2000 server IIS server?

This is what I have right now on one of them:
This server is running MS SQL also.


- afs3-bos -- open
- irc-serv -- open
- ms-streaming -- open
- ms-sql-s -- open
- iad1 -- open
- nterm -- open
- blackjack -- open
- microsoft-ds -- open
- https -- open
- nbsession -- open
- dcom -- open
- http -- open
- ftp -- open


Should all of them other than the obvious ones should be open?
ie. iad1?

 

 

 

 

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