library that is frequently installed as /usr/lib/libcryptopp.a, to avoid
problems with non-alphanumerics in filenames).
-The FTP server requires code in Twisted that enables asynchronous closing of
-file-upload operations. This code is present in Twisted-10.1 (released
-27-June-2010), but not in Twisted-10.0 (released 01-March-2010). To use
-Tahoe-LAFS's FTP server with Twisted-10.0 or earlier, you will need to apply
-the patch attached to http://twistedmatrix.com/trac/ticket/3462 . The
-Tahoe-LAFS node will refuse to start the FTP server unless it detects the
-necessary support code in Twisted. This patch is not needed for SFTP.
-
Immutable and Mutable Files
===========================