MS IIS

I assume you mean Web sites as opposed to FTP sites.

With Web sites you can create multiple websites using the same IP address (ie - a single NIC). To do this is very simple - create a directory where you wish to store the website. Go to the MMC and select the 'servername' - web sevice and then right clcik and choose the "create virtual directory" - Give it a name and then get it to point ot the actual directory that you have created. Repeat for other sites.

For multiple FTP sites you will need multiple NICS. A whole new area. Reply if this is you intention.

Hope this helps.

I assume we're talking IIS 4 here. The above answer will create a virtual directory below the default site. There a 3 ways of hosting multiple domain names. First is unique IP address i.e. multiple NICs. Second is to use host headers (see MS Knowledge Base 190008 for more detail). Third is to use a unique port number for each virtual server.

Summary of using host headers (note only version 3 browsers or later are compliant with HH):
1. Start MMC
2. Right click web site (not default - causes problems) and click properties
3. Web Site Tab - select IP address (if only one on server leave as 'all unassigned') and set TCP port (usually 80)
4. Click Advanced
5. Select identity you want to use, click edit and enter desired host header name.
6. Click add to add additional identities but keep all IP and Port numbers same.
7. Apply changes.
8. Register host header names with WINS (Intranet) or DNS (Internet)
9. Test it.

PS IIS FTP sites can't use host headers but they can use multiple post numbe

Re: above

I haven't made 6 and 7 very clear above.

6 should be apply changes

7 should be repeat 2-6 for each site you wish to host using same IP and port numbers for all sites, but entering different host name for each.

Hope this is whatyou're after

As you can see it not that hard, useing host headers or IP Address.

You did however fail to stat which version of IIS your using! It has to be IIS 4.0 to run multple Site on 1 server.

There is another way to create multiple sites on a server running IIS4.0.
You can bind multiple IP's to a single network adapter. In IIS you then create a site and assign a free IP to the site.