multiple domain problem..

[indiandomain]

hello
i have a multiple domain problem.

i have a dedicated server server.com
i have another 100 domain names hosted on the server and all the domain names open on the server.com's index.html page.
so my domain xx.com opens at server.com with xx.com in the address bar of the browser.
also xx.com/subdomain opens at server.com with xx.com/subdomain in the address bar of the browser.

now im sure this is called duplicate content in google.

i think i am currently using dns based hosting.

what can i do to avoid being blocked by google?

do i have to use some special redirection?
please guide me as im a total newbie here.

many thanks
sohail

[DaveAtIFG]

If I understand your situation correctly, I think I'd point all but one domain to a 404 error immediately, leave one pointing at server.com/index.html. Then begin adding unique content to each domian and point them to domain-name.com/index.html as content is added.

If you have your own dedicated server, this can all be done by changes to the httpd.conf file (assuming you're using an Apache server.)

[indiandomain]

dave
i cant add unique content to each domain.
all domains are supposed to use server.com/index.html

thats where im stuck.
so whatever pointing system i use,the content will remain the same for all the domains.

any solution for this?

-sohail

[Robert Charlton]

Pointing multiple domain names to main site without mirrors
[webmasterworld.com...]

Note in particular WebGuerilla's comments in msg #17 about the necessary robots.txt exclusions and Andreas' superb summation in msgs #26, 27, & 28.