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Hey James - I am curious as to why you think a 'canonical tag' wouldn't be a "long term fix"?

Thanks for the responses everyone.  Everyone seems to be in agreement that a '301' is the proper course of action and should be explained that way.

I just have never run into a developer opposing the idea.  So, thanks again for the feedback!

A client's site where both the www. and non-www. versions are both being indexed.  The non-www. version have has roughly 1000 or so links where the www. version has over twice as much pointing back to the site.  In addition, the www. version has higher domain authority.

Their programmer has suggested that they can't implement 301's permanent redirects across their site for a few reasons.

My question is, what would be the best alternative to block/redirect the non-www. version from being indexed yet still pass link-juice?

Thanks for responding.  The client placed the WP blog on a test site within the same server and witnessed poor performance with the rest of the site.  So, their concern is that will also happen with the main site.

The content on the blog most likely won't be considered 'high-value'.  However, I want to make sure that the main site (root) will improve domain authority from inbound links to the blog.

In your opinion, will the inbound links to the blog help the domain authority of the main (root) site if the blog is in a subdomain on a separate server?

Thanks for the quick response.

The client has set up a wordpress install in a subfolder on a test site within the server.  They noticed a fairly significant delay in load times with the rest of the test site.....that is their primary issue.

I guess my primary question is, will the main site (root) improve domain authority from inbound links to the blog if the blog is set up in a subdomain on a separate server?

I have a client that wants to setup wordpress for their business site.  However, they are really concerned about the load time a wordpress install creates on their site in the root.  So, they want to setup wordpress with a sub-domain on a separate server.  For example:

abc.domain.com

As far as SEO is concerned with the main site, what are the advantages and disadvantages for using a separate server w/ subdomain?