301 Redirect from one url to another url (in different domain) transfer the ranking i

Hello, I found an issue on our web site caused by Hosting comp.
Hosting company provides their own url for the all page in our site.
For example,
mysite.webserverID.hostingcompdomain.com/page1 has the same content as
mysite.com/page1.

Somehow mysite.webserverID.hostingcompdomain.com/page1 is ranked in google high for some keywords.
There are hundreds of pages like that. I feel all my SEO effort are waisted.

Our own site could be marked as duplicated contents site then.

If I do 301 redirect from
mysite.webserverID.hostingcompdomain.com/page1 to
mysite.com/page1,

Will mysite.com/page1 page be ranked in the same position for the keywords?

Or just ask hosting company to disable the urls permanently?

Any comment will help.
Thank you,

 

Heh. I tried that. It failed really, really badly. You're kinda screwed here.

Change hosts and let the old urls die a natural death, the only way to get rid of this kind of issue seems to be to get google to reindex one set of the dup content with *different* content, which is really hard if you've just got two urls for the same content.

 

Too bad for you, you can try that redirect. The hosting company should stop it, duplicate is very big issues for sites.