Submit a ticketCall us

AnnouncementsAre You “Flying Blind?”

When it comes to your complex IT infrastructure, you want to ensure you have a good grasp of what’s going on to avoid any fire drills that result from guesswork. Read our white paper to learn how proactively monitoring your IT environment can help your organization while giving you peace of mind.

Get your free white paper.

Home > Success Center > Serv-U Managed File Transfer & Serv-U FTP Server > Serv-U - Knowledgebase Articles > 503 FTP response code

503 FTP response code

Updated May 3, 2017

Overview

This article provides information on 503 FTP response code.

Environment

All Serv-U versions

Detail

A 503 response code may be sent in response to any command that requires the successful processing of previous commands first. It is a permanent negative reply, which means the client is discouraged from immediately sending the command again since the server will respond with the same reply code. For example, a file rename requires a successful RNFR command before the RNTO command can be sent. Sending the RNTO command first will result in a 503 response code.

Example response

503 Bad sequence of commands.

Possible commands

 

Last modified

Tags

Classifications

Public