2004-11-28 155633.txt

教师管理系统是在学校局域网架设的B/S结构的办公平台。系统有四个模块：系统设置

  time-out problems by certain proxy servers during lengthy data transfers.
* Changed FTP command replies to be more like UNIX.
* Drive letters can be without colon (':'), ie. "/c/" is equal to "/c:/",
  "\c\", "c:" or "\c:\".
* Added option to server setup to block "FTP_bounce" attacks
  (CERT advisory CA-97.27), to limit PORT IP addresses to the client IP only.
* Added SITE PSWD command to allow FTP clients to change their password.
* Added support for the OPEN command. Has no functionality, for testing only.
* A double-click on a user name in the user setup will now open the miscellaneous
  menu for that user.
* Fixed bug which caused Serv-U to show a window when started after it was
  stopped while a tray-icon in Win95/NT4.
* Extended support for leading '-' in passwords to suppress multi-line responses
  to all user names (used to be only for Anonymous).
* Added extension to MDTM for changing file date/time by the client.
* Any path reference of "..." or more dots is now converted to the drive root.
* Files/dirs with multiple consecutive dots embedded in the name are now
  preserved correctly. Trailing dots are stripped.
* Added 'copy' and 'paste' buttons to the 'about - register - enter
  key' menu. Registration menu now stays visible also after registration.
* Changed code to constrain users with relative paths to their homedir and
  the subdirs of their homedir.
* Fixed bug in "store unique" (STOU) command when used with (partial) path
  names as an argument.
* Changed time-out for command connection after it is initially set up.
  Now 3 minutes for receiving a packet (was 5) and 5 minutes for sending.
* Changed FTP reply messages for successful upload and download to be identical
  to UNIX messages.
* Fixed bug in recognizing the root directory of CD-ROMs under Win3.1.

Version 2.3b released 11 October 1997
-------------------------------------
* Changed the end-of-try-out-time message box to show the message came from
  Serv-U.
* Changed access verification DLL handling so event structure changes are
  only considered if the DLL handled the event (Fixes a problem with Emerald).
* Fixed bug in file transfer count displayed in the status bar.
* Fixed bug in handling of suspended events (in case of an event hook DLL)
  while there is an ongoing data transfer.

Version 2.3a released 7 October 1997
------------------------------------
* Fixed bug in NLST and LIST commands (for dir listing) which prevented
  the use of wildcards in dir listings.

Version 2.3 released 6 October 1997
-----------------------------------
* REST (=resume command) now supported for file uploads.
* Added support for the SITE INDEX command (only in the 32-bit version)
  as used by Fetch.
* Fixed bug in total file transfers count as shown in the status bar.
* Changed path parser to recognize all possible ports and isolate them.
* Added 'Register' menu to the help section. This allows users to generate
  a registration form on the fly and fill it out using NotePad.
* Added new mechanism to enter a registration key into Serv-U, also added
  support for a new key format.
* Added new message directives to keep track of server stats: Total up-time,
  total uploads and downloads (bytes/files), total users.
* Changed internal string handling to improve performance.
* The STOU (=STOre Unique) command now handles long file names in Win95 and NT.
* Changed compilers from Borland C++ 4.52 to BC++ 5.02 for the 32-bit version.
  This necessitated several code changes.
* Changed code so the maximum path length for the 16-bit version is 80
  characters. This is conform the Win16 maximum path length. Longer paths
  caused crashes in Win16 functions.
* Tray icon will now disappear by itself after exiting Serv-U.
* Added "Notes" field to the user and group setup for notes about each user.
* Logging to screen and file can now be separately specified.
* The user info window can now be froozen for easier viewing.
* The user info window can now be resized in height.
* Passwords can now optionally be stored unencrypted. The default is that
  they get encrypted.
* The 'kill user' dialogbox now allows editing of the IP address.
* Renaming/moving a dir now requires 'remove' access to the path being
  removed, and 'make' access to the destination path.
* The maximum transfer speed can now be set for each user via the 'setup -
  users - miscellaneous' menu.
* Partially uploaded files can be automatically deleted via a 'setup -
  server' menu option.
* In case a client closes the command connection while there are ongoing
  transfers this is now properly logged and passed to the event notification
  mechanism.
* Files are now kept open during transfers. This means files being uploaded
  show zero length during the upload.
* The reply message after a dir listing or file transfer now shows the client
  his/her ratio and quota status (if the client is using ratios and/or quota).
* Added SITE command to the event hooking mechanism. Any SITE command can
  now be intercepted by an event notification DLL.
* Fixed bug in system tray menu (Win95) when Serv-U gets started automatically
  after system startup.
* The CWD ('change working directory') command no longer actually changes
  the Serv-U task's current directory which caused locking of the dir in NT.
* Added .ini file option to avoid logging of certain clients from IP numbers.
* Closing Serv-U from the system menu (or the 'x' in Win95/NT4) now minimizes
  the window in case there is a tray icon. Exit the server from the tray menu.
* The string "%20" in paths is converted to " " (=space) to please MSIE.
* There no longer is any 'hard' limit to the maximum number of IP homes.
* Serv-U now shows all the IP addresses it listens on at startup.
* Upon startup a file IPSERVU.TXT is created in the Serv-U program dir with
  all the IP addresses it listens on. This file is updated every 5 minutes.
  Through a .ini file option the interval and file name can be changed.
* When restoring window from the tray-icon (Win95/NT4) the log will now scroll
  to the end.
* When running as a Win95 system service there is no longer a regular icon
  if the user logs out and back into the system again.
* External access verification DLLs now receive the SRVU_IPAccess event,
  also when no IP access rules were present.
* In case Serv-U is started for the first time, but with a KEY.TXT file
  present it will no longer ask for the try-out option but read in the key.
* Users with no password (ie. 'Password' entry in the .ini file explicitely
  set to nothing) are logged in immidiately after the USER command.
* Users can be given an empty password (ie. no password required when logging
  in) by entering "<<None>>" in the password field of the user setup.
* To create or delete directories the user now needs the appropriate access
  to the parent of the dirs that are being created/deleted.
* Users with setting "allow login when max. no. of users is reached" now also
  have no time-out after logging in.
* Server now switches to 'crippled' try-out when try-out time is up.
* When the version is out-of-date the server now allows 'crippled' use.
* FTP response messages to clients now preserve case for file/path names.
* The "Too many users ..." message no longer shows the maximum number to clients.
* Try-out time has been changed from 30 to 45 days.
* Transfer speed reports use 1024 bytes per Kb rather than (previously) 1000.
* Added support for limiting the maximum bandwidth used by the server.
* The event EVNT_Login of the event notification mechanism now has
  the anonymous password in AuxOne (for anonymous users only).
* Fixed bug which would show a tray icon in NT4 even when the server was
  started 'hidden'.
* Minor changes to socket stack handing with the hopes that it will work with
  (even) more WinSock stacks.
* The SIZE command now works with either 'list' or 'read' access to the file.
  This used to require 'list' access.
* Fixed bug in SIZE command causing it to deny access if directory didn't
  have 'inherit' access.
* Data transfers now use a socket bound to the same IP as their command
  connection. This should fix a rare problem with multi-homed sites and
  firewalls.

Version 2.2 released 22 February 1997
-------------------------------------
* In case 'current' disk quota is set larger than 'maximum' uploads are no
  longer allowed.
* Changed the data connection message for uploads/downloads to be more UNIX
  compatible (some browsers use this to get the file size from).
* Serv-U now uses the native case for file/dir names, or optionally lower case.
* The ALLO (=allocate) command now handles 4Gb instead of 2Gb of free space.
* The security manager no longer checks for the presense of the SERV-U.INI file
  which hopefully solves a very rare problem where the server cannot read the
  .ini file after several days (in NT3.51 SP5).
* Added DLL interface for event notification and command hooks.
* In case no IP address can be found for the server it'll display "?????".
* Renaming directories works also now.
* Added support for IP names (with wildcards) in IP access rules.
* Added option to limit a user from logging in more than once from the same
  IP address.
* Fixed bug which prevented multi-homed IP numbers from showing in case no
  users were defined.
* Changed IP access rule mechanism. It is now more flexible. Added .ini file
  conversion for new rule format.
* Added option to specify IP access rules for each user individually.
* Added tray icon support for Win95 and NT4.
* Changed code so 32-bit version can handle more IP homes (now it'll do around
  1800 IP numbers, while the 16-bit version handles about 180 IP numbers).
* Fixed bug in reporting of no. of try-out days left for the 32-bit version.
* LIST now completely ignores any '-' type options. NLST only parses '-l' and
  converts that to a LIST command. This should make the latest CuteFTP work.
* Fixed bug introduced in v2.1: Killed users that were put on the IP bounce
  list now work properly.
* Fixed bug introduced in v2.1: Putting the server in a directory path with
  spaces works now.
* Fixed bug in links introduced in v2.1 which caused crashes.
* Added support for running Serv-U as a system service in Win95.

Version 2.1, released 8 November 1996
-------------------------------------
* Fixed bug in 24h user count (sites with only a few hits a day would get
  bogus numbers).
* Added startup options /i (=iconic), /h (=hidden), and /u (=unconditional
  exit).
* When Serv-U was stopped while iconic it'll start as an icon the next time.
* The evaluation order of IP deny and allow rules can now be choosen.
* Fixed bug which would not allow dir listings if 'inherit' was not enabled
  and a dir listing with argument was done (ie. 'dir *.*').
* Changed link handling so if there is a subdir with the same name as a link
  preferance will be given to the subdir.
* Changed '%dfree' message file directive so it handles >2Gb of free space.
* All links should now be absolute paths, even for users with 'rel. paths'
  enabled. Serv-U takes care of the conversion for dir listings etc.
* Added support for the FTP command STAT, showing UL/DL ratios and quota.
* Changed %bup, %bdown, %btot, and %dfree to report in Kb instead of bytes.
* Added support for secundary 'dir change message file' and 'link file'.
* Added a very beautiful status bar.
* Added a bunch of message file directives for ratios and disk quota.
* Fixed bug in 'restart' handling causing extraneous "450 Try later - Data
  connection in use" command error replies.
* Added disk quota limitation support.
* Added support for 'free files' for U/D ratios.
* Added feature to allow users to log in even when user limit is reached.
* User ID in log now always has 6 digits (with leading zeros if needed). To
  make programmatic sorting easier.
* Changed code of security manager, simplifying it (and hopefully making it
  more robust).
* Added 'upload/download ratios'.
* Added support for 'relative paths' for all users.
* Added support for hiding 'hidden' files for every user.
* Fixed bug which caused IP home changes to be ignored until a restart.
* Changed the max. no. of characters that can be entered into the multi-homed
  setup box for the IP number from 14 to 15.
* Fixed bug causing GPF's for very long signon/signoff text lines.

Version 2.0c, released 10 August 1996
------------------------------------
* Fixed problem with user setup changes that would not show up immidiately.
* Added "%maxusers" and "%maxanonymous" directives.
* Changed the implementation of the REST command ('resume') to be compatible
  with CuteFTP 1.5.
* Added multi-homed IP support.
* Fixed bug in MDTM command.
* Changed dir listing format: Times before 10am now have a leading zero.
  This to be more UNIX compatible and fix problems with WS_FTP.
* Fixed problem in NT preventing directory deletion.
* More bullet proofing of the socket stack routines.
* Fixed bug causing GPF's while making server setup changes that resulted in
  a server restart.
* Added WinSock function logging.
* Added support for external client verification DLLs. 
* Bulletproofed the input buffer. It now handles any length strings.
* The '&' character in the registration key (if present) is now displayed
  correctly.

Version 2.0b, released 4 May 1996
------------------------------------
* Bullet-proofed the 'relative paths anonymous' option. Now impossible to get