34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
<sect1 id="using-filemodes"><title>File permissions</title>
|
|
|
|
<para>On FAT or FAT32 filesystems, files are always readable, and Cygwin
|
|
uses the DOS read-only attribute to determine if they are writable. Files are
|
|
considered to be executable if the filename ends with .bat, .com or .exe, or
|
|
if its content starts with #!. Consequently <command>chmod</command> can
|
|
only affect the "w" mode, it silently ignores actions involving the other
|
|
modes. This means that <command>ls -l</command>
|
|
needs to open and read files. It can thus be relatively slow.</para>
|
|
|
|
<para>On NTFS, file permissions are evaluated using the Access Control
|
|
Lists (ACLs) attached to a file. This can be switched off by using the
|
|
"noacl" option to the respective mount point in the
|
|
<filename>/etc/fstab</filename> or <filename>/etc/fstab.d/$USER</filename>
|
|
file. For more information on file permissions, see
|
|
|
|
<!-- TODO: Put the file permission stuff from ntsec here??? -->
|
|
|
|
<xref linkend="ntsec"></xref>.
|
|
</para>
|
|
|
|
<!-- TODO -->
|
|
|
|
<para>On NFS shares, file permissions are exactly the POSIX permissions
|
|
transmitted from the server using the NFSv3 protocol, if the NFS client
|
|
is the one from Microsoft's "Services For Unix", or the one built into
|
|
Windows Vista or later.
|
|
</para>
|
|
|
|
<para>Only the user and group ownership is not necessarily correct.</para>
|
|
|
|
</sect1>
|
|
|