K 10 svn:author V 6 eadler K 8 svn:date V 27 2013-02-28T23:33:03.601085Z K 7 svn:log V 159 Remove references / support of &os; 7.x ppp-and-slip not touched because of ongoing work to revise that chapter. Reviewed by: doc@ Approved by: bcr (mentor) END