Wiki with section tags

I'm looking for a wiki package to use for system documentation. For the
purpose of cross referencing, I'd like to be able to tag individual sections
on the page.

Use case, as an example:

I have a few servers on which I've setup SSH tunnels. I'd the like the
information/instructions for these ssh tunnels to appear on the server's
page. I'd also like to have a page that consolidates all the ssh tunnel
information, but without retyping or duplicating the information. What I
envision is this: sections of the pages could be tagged, and then I could
have another page that simply displays all sections tagged "sshtunnel."

I found <http://nexi.com/1>, but it only seems to tag individual pages, not
sections as I'd like.

Any ideas or recommendations?

j----- k-----

-- 
Joshua Kugler                 PGP Key: http://pgp.mit.edu/
CDE System Administrator             ID 0xDB26D7CE
http://distance.uaf.edu/
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