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245 lines
12 KiB
245 lines
12 KiB
This file details the registry structure & specific values used by the
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FTP Server service.
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All FTP Server parameters "live" under the following key:
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HKEY_LOCAL_MACHINE
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System
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CurrentControlSet
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Services
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FtpSvc
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Parameters
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The following values may exist under the Parameters key:
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Name: AllowAnonymous
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Type: REG_DWORD
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Meaning: If this value is non-zero, then anonymous logons are allowed.
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Otherwise (value IS zero) anonymous logons are not allowed.
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Default: 1 (allow anonymous logons)
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Name: AllowGuestAccess
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Type: REG_DWORD
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Meaning: If this value is non-zero, then guest-access logons are
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allowed. Otherwise (value IS zero) guest-access logons
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are not allowed. (Note that guest-access has nothing to
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do with the "Guest" account; guest-access is granted if
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the local machine's user rights policy states that
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"Everyone" may access the machine from the network. Any
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user that tries to logon with an unknown account will be
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granted guest-access.)
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Default: 1 (allow guest-access)
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Name: AnnotateDirectories
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Type: REG_DWORD
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Meaning: If this value is non-zero, then everytime a user changes
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directories (sends the server a CWD command) an attempt is
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made to open a file called "~FTPSVC~.CKM" in the new
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directory. If this file is found, its contents are sent
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to the user as part of the successful reply to the CWD
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command. This may be used to attach "annotations" to
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specific directories.
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This value is used as a default for new users. Users can
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toggle their own personal "annotate directories" flag with
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the site-specific CKM command (SITE CKM).
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Default: 0 (don't annotate directories)
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Name: AnonymousOnly
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Type: REG_DWORD
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Meaning: If this value is non-zero, then only anonymous logons are
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allowed. Otherwise (value IS zero) then non-anonymous
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logons are allowed as well.
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Default: 0 (non-anonymous logons allowed).
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Name: AnonymousUserName
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Type: REG_SZ
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Meaning: Anonymous logon alias. When a user attempts an anonymous
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logon, the username specified ("anonymous") is mapped to
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this registry value for the purposes off authentication
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and impersonation. The password for this account is stored
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in an LSA secret object named "FTPD_ANONYMOUS_DATA".
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Default: "Guest"
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Name: ConnectionTimeout
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Type: REG_DWORD
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Meaning: The time (in seconds) to allow clients to remain idle before
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forcibly disconnecting them. This prevents idle clients
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from consuming server resources indefinitely.
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This value may be set to zero if timeouts are not to be
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enforced. If set to zero, idle clients *can* remain connected
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indefinitely.
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Default: 600 (10 minutes)
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Name: DebugFlags
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Type: REG_DWORD
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Meaning: This value is used only by the debugging (checked) builds of
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the FTP Server. It controls the output of various debugging
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information. This value is unused by retail builds.
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Default: 0 (no debug output)
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Name: DefaultLogonDomain
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Type: REG_SZ
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Meaning: The domain name to use when validating user logon requests
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if the user did not specify a domain. If this value does
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not exist in the registry, then the FTP Server will use the
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local machine's primary logon domain instead.
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Default: NULL (use the local machine's primary logon domain)
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Name: DisableExtendedCharFilenames
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Type: REG_DWORD
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Meaning: RFC 0959 says only 7bi ASCII characters can be used to specify
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file names in FTP commands. DeFacto, 8bit chars are being used
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to specify extended char names and DBCS encoding. If this value
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does not exists, or if it exists but set to 0, extended chars
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are being accepted. If the value is 1, extended char file names
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are rejected.
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Default: Not created. (extended chars enabled)
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Name: ExitMessage
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Type: REG_SZ
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Meaning: This is the signoff message sent to a client upon receipt
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of a QUIT command.
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Default: "Goodbye."
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Name: GreetingMessage
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Type: REG_MULTI_SZ
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Meaning: This message (if it exists in the registry) is sent to new
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clients after their account has been validated. In accordance
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with "de facto" Internet behaviour, if a client logs on as
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anonymous and specifies an identity starting with '-' (minus),
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then this greeting message is NOT sent.
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Default: NULL (no special greeting)
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Name: BannerMessage
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Type: REG_MULTI_SZ
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Meaning: This message (if it exists in the registry) is sent to new
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clients when they connect, right after the service name.
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Default: NULL (no special greeting)
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Name: HomeDirectory
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Type: REG_EXPAND_SZ
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Meaning: This is the initial "home" directory for new clients. After
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a new client is validated, an attempt is made to CHDIR to
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this directory. If this directory is inaccessible, the client
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is refused FTP services. If the CHDIR is successful, then
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an attempt is made to CHDIR to a directory with the same name
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as the client's username. If this fails, an attempt is made
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to CHDIR to a directory called "Default". If this fails,
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the current directory is left at "home".
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If a user finds that the home directory is inaccessible,
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then an event is written to the event log indiciating such.
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Default: "C:\"
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Name: ListenBacklog
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Type: REG_DWORD
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Meaning: This is the "backlog" parameter passed into the listen()
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API. This sets the maximum number of unaccepted connections
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that can be queued against the socket that listens on the
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main FTP port.
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Default: 5
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Name: LogAnonymous
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Type: REG_DWORD
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Meaning: If this value is non-zero, then all successful anonymous
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logons are logged in the system event log. Otherwise
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(value IS zero) successful anonymous logons are not logged.
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Default: 0 (don't log successful anonymous logons)
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Name: LogFileAccess
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Type: REG_DWORD
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Meaning: This value controls the logging of file accesses. This value
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can be one of the following:
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0 = Don't log file accesses
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1 = Log file accesses to FTPSVC.LOG
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2 = Log file accesses to FTyymmdd.LOG, where yy
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is the year, mm is the month, and dd is
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the day. A new log file will be opened
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every day as necessary.
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Default: 0 (don't log file accesses)
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Name: LogFileDirectory
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Type: REG_SZ
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Meaning: This value specifies the target directory for log files.
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This value is only used if LogFileAccess is !0.
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Default: %SystemRoot%\System32
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Name: LogNonAnonymous
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Type: REG_DWORD
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Meaning: If this value is non-zero, then all successful nonanonymous
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logons are logged in the system event log. Otherwise
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(value IS zero) successful nonanonymous logons are not logged.
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Default: 0 (don't log successful nonanonymous logons)
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Name: LowercaseFiles
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Type: REG_DWORD
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Meaning: If this value is non-zero, then all file names returned by
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LIST and NLST commands for non-case-preserving filesystems
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will be mapped to lowercase. If this value is zero, then
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all file names will be unaltered.
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Default: 0 (don't map filenames to lowercase)
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Name: MaxClientsMessage
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Type: REG_SZ
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Meaning: This message (if it exists) is sent to a client if the maximum
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number of clients has been reached/exceeded. This indicates
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that the server is currently servicing the maximum number of
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simultaneous clients and is refusing addtional clients.
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Default: "Maximum clients reached, service unavailable."
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Name: MaxConnections
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Type: REG_DWORD
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Meaning: This is the maximum number of simultaneous clients the server
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will service.
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This value may be set to zero if there is to be no limit on
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simultaneous clients.
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Default: 20
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Name: MsdosDirOutput
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Type: REG_DWORD
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Meaning: If this value is non-zero, then the output of the LIST
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command (usually sent as a result of a DIR from the client)
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will look like the output of the MS-DOS DIR command.
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Otherwise (value IS zero) then the output of the LIST command
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will look like the output of the UNIX LS command.
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This value also controls "slash flipping" in the path
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sent by the PWD command. If this value is non-zero, the path
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will contain backward "\" slashes. If this value IS zero, the
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path will contain forward "/" slashes.
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Default: 1 (directory listings like MS-DOS)
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Name: ReadAccessMask
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Type: REG_DWORD
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Meaning: This value is a bitmask and controls the "readability" of
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the various disk volumes in the system. Drive A: corresponds
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to bit zero, drive B: is bit 1, drive C: is bit 2, etc. A
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user may only read from a specific volume if the corresponding
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bit is set.
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Default: 0 (all read access denied)
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Name: WriteAccessMask
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Type: REG_DWORD
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Meaning: This value is a bitmask and controls the "writability" of
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the various disk volumes in the system. Drive A: corresponds
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to bit zero, drive B: is bit 1, drive C: is bit 2, etc. A
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user may only write to a specific volume if the corresponding
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bit is set.
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Default: 0 (all write access denied)
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There is an additional (optional) key that may exist under the Parameters
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key. After a user's account/password has been validated and the server is
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impersonating that user, an attempt is made to open a key named "AccessCheck".
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If this key exists, and the user cannot open it, then the user is denied
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access to the FTP Server. If this key exists, and the user can only open it
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for read access, then the user is given read-only access to the FTP Server.
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This way, an administrator can create this "AccessCheck" key and attach
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specific ACLs to the key. These ACLs will then control access to the FTP
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Server.
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