[OpenAFS] Several OpenAFS issues

[Jim Rees]

  3) Incompatibilities with UNIX semantics
  I am trying to put users' home directories on AFS. This works, generally,
  except in the case of several programs that expect UNIX semantics to work

You have to be very careful about security holes produced by the absence of
file acls.  xauth files and the contents of ~/.ssh are two examples.  You
can get yourself in a situation where everything works but you're wide open.