How to secure an entire branch in a Sitecore content tree?

Question

I have a section of my content tree which I would like to deny ALL permissions to except for specific roles. This seems like a really obvious task to perform, and yet I don

Answer 1

Ok, follow this guideline.

Let's say we have sitecore\SomeRole and a content tree like this:

Home
  branchA
    itemA1
  branchB
    itemB1

We'd like to deny acccess to branchB and all its descendants for everyone, except for SomeRole.

First off, in Security Editor select Home node, choose sitecore\Everyone role and set the following permissions:

alt text http://img822.imageshack.us/img822/7172/sitecoreeveryonepermiss.png

Now check the access in AccessViewer - that's what we need:

alt text http://img532.imageshack.us/img532/3512/sitecoreeveryoneaccess.png

Let's allow branchB for SomeRole. Go back to Security Editor and explicitly allow permissions for SomeRole:

alt text http://img80.imageshack.us/img80/120/sitecoresomerolepermiss.png

And check this in AccessViewer again:

alt text http://img27.imageshack.us/img27/9584/sitecoresomeroleaccess.png

Hope this answers your question. Beware that Sitecore versions prior to 6.2.X have an issue: AccessViewer doesn't refresh correctly after permissions are set. Kill aspnetwp (w3wp) to fix this.