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Re: Issues with ACL settings after updating to the latest cygwin.dll - correction


I'm having a similar issue with strange acl results... I wish I knew
which update triggered this, but I'd ignored and/or worked around
it...

I can reproduce it with the following:

user@localhost ~
$ touch /tmp/foo

user@localhost ~
$ chmod 700 /tmp/foo

user@localhost ~
$ echo foo>/tmp/foo
-bash: /tmp/foo: Permission denied

user@localhost ~
$ ls -la /tmp
total 20
drwxrwxrwx+ 1 user Administrators 0 Apr 29 11:42 .
dr-xrwxr-x+ 1 Administrators  Administrators 0 Mar  9 17:00 ..
-rwx------+ 1 user Domain Users   0 Apr 29 11:42 foo


result of the acl commands, as I've seen them requested are:

user@localhost /tmp
$ cacls foo
C:\cygwin64\tmp\foo NewDomain\user:(DENY)(special access:)
                                              FILE_READ_DATA
                                              FILE_WRITE_DATA
                                              FILE_APPEND_DATA
                                              FILE_READ_EA
                                              FILE_WRITE_EA
                                              FILE_DELETE_CHILD
                                              FILE_WRITE_ATTRIBUTES

                    NewDomain\user:F
                    NewDomain\user:(special access:)
                                              READ_CONTROL
                                              SYNCHRONIZE
                                              FILE_GENERIC_READ
                                              FILE_GENERIC_WRITE
                                              FILE_READ_DATA
                                              FILE_WRITE_DATA
                                              FILE_APPEND_DATA
                                              FILE_READ_EA
                                              FILE_WRITE_EA
                                              FILE_READ_ATTRIBUTES
                                              FILE_WRITE_ATTRIBUTES

                    NewDomain\Domain Users:(DENY)(special access:)
                                           FILE_READ_DATA
                                           FILE_WRITE_DATA
                                           FILE_APPEND_DATA
                                           FILE_READ_EA
                                           FILE_WRITE_EA
                                           FILE_DELETE_CHILD
                                           FILE_WRITE_ATTRIBUTES

                    OldDomain\Domain Users:(DENY)(special access:)
                                      FILE_READ_DATA
                                      FILE_WRITE_DATA
                                      FILE_APPEND_DATA
                                      FILE_READ_EA
                                      FILE_WRITE_EA
                                      FILE_DELETE_CHILD
                                      FILE_WRITE_ATTRIBUTES

                    NewDomain\Domain Users:(special access:)
                                           READ_CONTROL
                                           SYNCHRONIZE
                                           FILE_GENERIC_READ
                                           FILE_GENERIC_WRITE
                                           FILE_READ_DATA
                                           FILE_WRITE_DATA
                                           FILE_APPEND_DATA
                                           FILE_READ_EA
                                           FILE_WRITE_EA
                                           FILE_READ_ATTRIBUTES
                                           FILE_WRITE_ATTRIBUTES

                    BUILTIN\Administrators:(special access:)
                                           READ_CONTROL
                                           SYNCHRONIZE
                                           FILE_GENERIC_READ
                                           FILE_GENERIC_WRITE
                                           FILE_READ_DATA
                                           FILE_WRITE_DATA
                                           FILE_APPEND_DATA
                                           FILE_READ_EA
                                           FILE_WRITE_EA
                                           FILE_READ_ATTRIBUTES
                                           FILE_WRITE_ATTRIBUTES

                    OldDomain\Domain Users:(special access:)
                                      READ_CONTROL
                                      SYNCHRONIZE
                                      FILE_GENERIC_READ
                                      FILE_GENERIC_WRITE
                                      FILE_READ_DATA
                                      FILE_WRITE_DATA
                                      FILE_APPEND_DATA
                                      FILE_READ_EA
                                      FILE_WRITE_EA
                                      FILE_READ_ATTRIBUTES
                                      FILE_WRITE_ATTRIBUTES

                    Everyone:(special access:)
                             READ_CONTROL
                             SYNCHRONIZE
                             FILE_READ_ATTRIBUTES




user@localhost /tmp
$ icacls foo
foo NewDomain\user:(DENY)(W,RD,REA,DC)
    NewDomain\user:(F)
    NewDomain\user:(R,W)
    NewDomain\Domain Users:(DENY)(W,RD,REA,DC)
    OldDomain\Domain Users:(DENY)(W,RD,REA,DC)
    NewDomain\Domain Users:(R,W)
    BUILTIN\Administrators:(R,W)
    OldDomain\Domain Users:(R,W)
    Everyone:(Rc,S,RA)

Successfully processed 1 files; Failed processing 0 files


I don't understand why there is a DENY at all rather than simply
removing the Allow permissions, nor do I understand why the user, who
is owner of the file and has rwx for it, is getting a DENY at all.

-- Erik

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