Does the content= "nofollow" in meta tag ban google from the page?

<meta name="robots" content="nofollow" />

if we add that code to a page, will google know check the page for updates? or will just forget about the whole page?

<meta name="robots" content="index,nofollow" />

or does this mean something else, like index but dont follow?

 

nofollow means that Google will not crawl your page and if you make it do follow then google bot crawl your webpage eveytime when they index. So its not related with Banned purpose

 

Does that mean that google will not know if that page updates? and will not reflect the changes for that page in its updates?

 

Yes, you are right

 

Is there a code we can tell google to index and check the updates but not to follow the links?

 

Yes, put a nofollow tag on the actual links - http://googleblog.blogspot.com/2005/01/preventing-comment-spam.html

 

The thing is the link are generated from PHP and that is making it very diffiicult to put nofollow in it. lots of codes were tried but the script doesnt work.

<meta name="robots" content="index,nofollow" /> does this code tells any difference to google?