SolarWinds | Serv-U
Contact Support: 866-530-8040 | Contact Sales: 855-498-4154 or email | Show Flags | Login
Serv-U FTP Server Home Page
The Best for Less
Secure file transfer & share files
from anywhere - affordably

FREE for 14 Days
Full featured trial with secure
FTP, file sharing & web transfer


551 FTP Reply Code  -  KB Article #1534

Related Articles --

Example Reply
551 Requested action aborted: page type unknown.

A 551 reply code may be sent in response to any command requiring the server to store information locally. It is a permanent negative reply, which means the client is discouraged from sending the command again since the server will respond with the same reply code. It is only applicable when the page file structure is being used (through a "STRU P" command).

Possible Commands

See Also