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

* Fixed bug in link handling of certain Windows' shortcuts.
* Added (much) more WinSock logging.
* Fixed bug causing server to run out of memory during DOS attack.
* Fixed problem with using UNC paths from the Emerald access DLL.
* Fixed bug sometimes causing 'hidden' files to get listed while they should not. 

Version 2.5i Released 4 December 2000
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* Changed default for LIST to show all files (ie. '-a' option of 'ls').
* Fixed bug allowing unauthorized access using paths like "\..%20.".

Version 2.5h Released 3 November 2000
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* Limited no. of login attempts for account changes after a successful login.
* Fixed bug in NLST causing it to only show files regardless of command line.

Version 2.5g Released 30 October 2000
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* Fixed bug which sometimes caused stuck connections to stay after their time-out.
* Fixed bug in log message in case client is kicked off by sysop or server.
* Fixed bug in transfer count in case of tranfers ending in error.
* Now flushing dir listing cache when using "ReloadSettings=TRUE" in .ini file.
* Changed server-to-stack transfer buffer back from 8192 to 4096 bytes.
* Changed REST command to allow PORT and PASV without canceling the restart.
* Fixed bug causing premature time-out when anti-time-out is enabled.
* Fixed bug handling Telnet command sequences.
* Changed NLST command to only show files (no more dirs).
* Added 'e' option to the 'ls' dir listing emulation, for files-only.
* Changed MDTM to not allow future date/times.

Version 2.5f Released 1 August 2000
-----------------------------------
* Changed event hook handling to allow file/path changes.
* Changed server-to-stack transfer buffer from 4096 to 8192 bytes.
* Fixed bug causing crashes when rapidly receiving large amounts of bogus commands.

Version 2.5e Released 24 March 2000
-----------------------------------
* Fixed handling of Windows' shortcuts that point to mapped drives.
* Changed quota handling to allow a maximum of around 4000000000 Gb.
* Fixed bug in use of multiple backslashes in paths.

Version 2.5d Released 14 February 2000
--------------------------------------
* Fixed bug introduced in v2.5c causing inability to rename directories.

Version 2.5c Released 8 February 2000
-------------------------------------
* Fixed bug causing ill-formed Windows' links (shortcuts) to crash the server.
* Fixed bug using ports in certain commands which caused server to hang.
* Fixed problem in dealing with characters values over hex F0 in paths.
* Fixed handling of UNC paths, was fixed in v2.5a, broken again in v2.5b.

Version 2.5b Released 4 December 1999
-------------------------------------
* Added control of PacketTimeOut via .INI file.
* Removed check for UNC paths, they are allowed now but (still) not supported.
* Added support for HEX password strings with S/KEY.
* Fixed bug in S/KEY causing it to store the wrong password after changing seed.
* Fixed bug denying access when using wildcards in rules for a drive root.
* Fixed bug in file transfer percentage of user info when file gets renamed.
* Fixed bug causing alternate passive IP to be ignored.
* Changed handling of passive mode transfers that never connect.
* Fixed bug in SITE PSWD command causing server to crash with bogus input.
* Changed default dir listing mask to 'rwxrwxrwx' to make AOL FTP clients happy.
* Fixed bug causing crashes upon exit in NT.
* Changed handling of uploads for UL/DL ratios to be less sensitive to abuse.

Version 2.5a Released 5 May 1999
--------------------------------
* Fixed bug in count of transferred bytes.
* Fixed the "check for update" menu bitmap to equal that of FTP Voyager.
* Fixed problem of showing Serv-U window from tray-icon in Win2000 or with IE5.
* Fixed bug introduced in v2.5 causing crashes with long paths in FTP commands.
* Fixed bug in handling links in root directories, sometimes caused server to hang.
* Fixed bug which caused Windows shortcuts in root dir to fail as links.
* Fixed bug which caused no tranferprogress to be sent during uploads.
* Fixed label for SRVU_QuotaMax event during logging of DLL events.
* Bitmap-enhanced menus are now disabled in NT3.51.
* Added logging of speed and bytes tranferred for aborted transfers.
* Added control over low-level socket options.  

Version 2.5 Released 14 April 1999
----------------------------------
* Changed SITE INDEX command to be non-recursive, to solve crashes on Win98.
* Added on-line help.
* Fixed bug with user names containing '@'.
* Added automatic update checking to the 'help' menu.
* Added support for Win9x/NT .lnk 'links', they are now resolved like Serv-U links.
* Changed user info mechanism to be vastly more efficient in CPU use.
* Added support for home-IP specific sign-on and sign-off messages.
* Added 'SRVU_SignOnMes' and 'SRVU_SignOffMes' access verification DLL events.
* Added file/path info to the user information dialogbox.
* Added percentage complete info for downloads to the user informatino dialogbox.
* Added menu item to toggle between conventional/enhanced style menus, to make
  screen readers work (they can't read bitmap menus).
* Added server IP address(es) to "About" dialogbox
* Added 'append' access right for users, to facilitate resuming of uploads.
* Added 'SRVU_AppendFile' access verification DLL event for append access.
* Added button to "Kill user" dialogbox to auto-calculate subnet mask.
* Added keyboard shortcuts to menus.
* Added anti-hammer measures.
* Added menu item and button to suspend logging to screen.
* Changed menu style in 32-bit to have images associated with them.
* Changed 'resume' for uploads, now only requires write access if upload is resumed
  within 12 hours.
* If server is closed while maximized this is now properly restored on startup.
* Maximum concurrent no. of logins from same IP is now configurable.
* Password changes by the client are now logged.
* S/KEY passwords can now also be changed remotely through SITE PSWD.
* Logging of local IPs is now switched off by default, and part of the logging
  setup.
* Added log file rotation, on daily, weekly, monthly, or yearly basis.
* Added logging of access DLL event info for debugging.
* Added support for listening to home IP addresses only.
* Fixed bug causing premature time-outs during file transfers.
* Added EVNT_ProgUp and EVNT_ProgDown for event nofication DLL progress notification
  during file uploads and downloads.
* Added .ini file 'OpenFilesUploadMode' option to force server to open files
  exclusively or shared during uploads (32-bit only).
* Added .ini file 'DirListMask' option to select a dir listing access mask.
* Default dir listing access mask is now "rwx------".
* Added dynamic adaptation of packet time-out for uploads to a minimum of 1.5 minute
  for fast consistent uploads. Helps free up files faster for resuming.
* The user is now warned if a new user/group is entered which already exists.
* Added .ini file 'ReloadSettings' entry to force the server to reload its settings.
* Added dynamic caching of disk quota, making this much more efficient.
* Added protection for starting Serv-U with a vastly wrong date, also fixed crashes
  in case the date gets out-of-whack.
* Fixed bugs in try-out mechanism, added use of TCP to reach permission server.
* Fixed bug which denied access to ports, even if proper access rules were present.
* Fixed bug causing Serv-U to slowly leak sockets.
* Fixed bug in key entry mechanism when reading new style key (with "[BEGINKEY]" ...)
  from KEY.TXT file.
* Added SITE SET TRANSFERPROGRESS command, to inform client of the progress
  of data transfers for server-to-server use.

Version 2.4a Released 23 September 1998
---------------------------------------
* User/group setup now prompts if homedir does not exist and offers to create it.
* Added "/s" option to start only a single instance of Serv-U.
* Changed access rule interpretation mechanism.
* Fixed bug in SITE INDEX command.
* Changed path resolver to convert double backslashes to single ones.
* In case the password type is changed the user is now prompted for a new password.
* Fixed bug in link handling causing long dir listing delays in some cases.
* Single dir/file names (with/without wildcards) are now allowed as access rules.
* Added user interface to option for not logging connections from certain IPs.
* Added tray icons to represent offline state, with a little help from John Hiemenz.
* Changed on/offline mechanism to simulate going offline rather than destroying
  its listening socket due to problems reliably reacquiring a new listening socket.
* Added two access verification DLL events, SRVU_Connect and SRVU_Close, to
  make it easier for DLLs to keep track of state for a user.
* Added more appropriate local error message in case server can not open a
  data connection to the client in active mode.
* Changed share modes for files to upload/download to make opening files
  which are in use more likely to succeed.
* Added "%LoggedInAll" message directive for total no. of logged in users since
  server start.
* Added "%ServerAvg" message directive for average bandwidth use since server start.
* Added "%ServerKBps" message directive for current server bandwidth use.
* Fixed bug in access rule mechanism to allow access to a dir if it contains
  files with access (while dir itself has no specified access).
* Added more socket status info to WinSock activity logging.
* Fixed bug in socket stack handling causing WSAENOTSOCK error messages.
* Added user selectable log screen font to logging setup.
* Fixed bug in handling single letter absolute dirs (eg. "/c") for relative paths.
* Added support for S/KEY one-time passwords.
* For external access verification DLLs the session ID is passed on now.
* Added 'Flush cache' button to directory cache setup to flush the cache.
* Fixed bug in directory changes to short-name (ie. DOS8.3 style) directories.
* Added selection list of available IP homes to multi-homed IP setup.
* Added button to disk quota setup to pre-set the current value.
* Links pointing to a directory are no longer shown in the dir they point to.
* Fixed bug in handling of wildcards in access rules.
* Fixed bug in renaming an existing file.
* Fixed tray-icon tooltip to read proper KBps.
* Added support for descriptive names and passive mode address translation
  to IP home setup and multi-homed IP handling.

Version 2.4 Released 20 July 1998
---------------------------------
* Fixed host IP passed with SRVU_LogClientIP and SRVU_IPAccess events.
* The original user name (in original case and length) is now passed as a
  second parameter in the 'Aux' field for the SRVU_Password event.
* Rename (RNTO) now renames over an existing file if needed.
* STAT now shows ongoing transers with their progress.
* HELP now shows the server type and version code in its last line.
* Added browse buttons to various file selection items.
* Added SITE ZONE command to report server timezone to client.
* Added on/off-line menu item to tray icon menus.
* Changed "About" dialogbox.
* Added Web links from 'help' menu items.
* Fixed rare bug that caused users to hang past their time-out.
* Added small delay between last message from server and actual disconnect
  so clients have a chance to display final message.
* Fixed bug in path handling for single character paths.
* Changed command reply to use 425 code in case the data connection fails.
* Alternative settings file (like SERV-U.INI) is now accepted on the command line.
* Fixed bug in event notification DLL mechanism, in case the server is suspended.
* Event notification for EVNT_EndDown, EVNT_EndUp, EVNT_AbortDown, EVNT_AbortUp
  now have transfer mode in 'AuxTwo'.
* Added menu item 'file - on-line' to put server on/off-line.
* Added CWD command to the event hooking mechanism.
* To delete or rename a directory the user now needs access to that dir, and
  not its parent (as used to be the case).
* User time-out is now part of the individual user account setup.
* Changed status bar style.
* Changed CWD so it always returns the path with the actual capatilization.
* Changed signon/signoff text handling so leading spaces are preserved.
* Max. no. of users is now part of the individual user account setup.
* The default user account "ALL" is now named "** Default **".
* When first started a default user account is created with 45 min. time-out.
* Added option to block anti-timeout schemes as employed by most FTP clients.
* Added toolbar and menu items to show/hide toolbar.
* Added hint text to menus.
* Added a number of new message directives.
* Made registration key entry more mutation-proof.
* Added interface for dir listing cache setup in 'setup - server - dir cache'.
* If user's homedir does not exist this is now logged.
* Changed all file handling code in 32-bit version to use native Windows functions.
* Increased listen backlog queue size to avoid "connection refused" messages.
* Fixed bug in FTP reply which reports how much disk quota is left over.
* Existance of an anonymous user account is now checked before determining if
  there are too many anonymous users so the proper reply is sent to client.
* Access rules now support wildcards.
* Dir listings are now cached in 32-bit version.
* Dir listing now supports most UNIX 'ls' options.
* Dir listing now only shows files/dirs/links the user has access to.
* Fixed a rare bug which would show only the first of a list of "links".
* Changed socket stack handling to solve rare bug in 16-bit causing failed
  transfers.
* The command connection now uses "keep-alive" at the TCP level. This solves