Дело в том, что фтп-клиенты почему-то вообще не хотят работать (не подключаются к прокси-адресу)???!!! А во всех броузерах и приложениях (типа Регет) включен пассивный режим.
А что за ошибка 550 и из-за чего она бывает?

...(с поникшим видом) Наверное, не судьба мне...

Вот очень полезный список описаний к кодам ошибок, который кто-то на KK выложил пару месяцев назад (рекомендуется распечатать и повесить в рамку над монитором )

• 100 - The requested action is being initiated, expect another reply before proceeding with a new command.
  
• 110 - Restart marker reply.
  
• 120 - Service ready in nnn minutes.
  
• 125 - Data connection already open, transfer starting.
  
• 150 - File status okay, about to open data connection.
  
• 200 - The requested action has been successfully completed.
  
• 200 - Command okay.
  
• 202 - Command not implemented, superflous at this site.
  
• 211 - System status, or system help reply.
  
• 212 - Directory status.
  
• 213 - File status.
  
• 214 - Help message.
  
• 215 - NAME system type. (Where NAME is an official system name from the list in the Assigned Numbers
  document.)
  
• 220 - Service ready for new user.
  
• 221 - Service closing control connection. Logged out if appropriate.
  
• 225 - Data connection open; no transfer in progress.
  
• 226 - Closing data connection. Requested file action successful (for example, file transfer or file abort).
  
• 227 - Entering Passive Mode
  
• 230 - User logged in, proceed.
  
• 250 - Requested file action okay, completed.
  
• 257 - "PATHNAME" created.
  
• 300 - The command has been accepted, but the requested action is being held in abeyance, pending
  receipt of further information.
  
• 331 - User name okay, need password.
  
• 332 - Need account for login.
  
• 350 - Requested file action pending further information.
  
• 400 - The command was not accepted and the requested action did not take place, but the error condition is temporary and the action may be requested again.
  
• 421 - Service not available, closing control connection. This may be a reply to any command if the service knows it must shut down.
  
• 425 - Can't open data connection.
  
• 426 - Connection closed; transfer aborted.
  
• 450 - Requested file action not taken. File unavailable (e.g., file busy).
  
• 451 - Requested action aborted: local error in processing.
  
• 452 - Requested action not taken. Insufficient storage space in system.
  
• 500 - Series Codes: The command was not accepted and the requested action did not take place.
  
• 500 - Syntax error, command unrecognized. This may include errors such as command line too long.
  
• 501 - Syntax error in parameters or arguments.
  
• 502 - Command not implemented.
  
• 503 - Bad sequence of commands.
  
• 504 - Command not implemented for that parameter.
  
• 530 - Not logged in.
  
• 532 - Need account for storing files.
  
• 550 - Requested action not taken. File unavailable (e.g., file not found, no access).
  
• 552 - Requested file action aborted. Exceeded storage allocation (for current directory or dataset).
  
• 553 - Requested action not taken. File name not allowed.
  

[This message has been edited by envoyatthenet (edited 30 May 2001).]

Инфа была нагло украдена и скопирована в фак

Спасибо за инфу!
Но... чего делать-то? Как исправить положение? И вообще - можно ли это сделать?