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A rule of thumb in determining if a reply fits into the 4xx or the 5xx (Permanent Negative) category is that replies are 4xx if the commands can be repeated without any change in command form or in properties of the User or Server (e.g., the command is spelled the same with the same arguments used; the user does not change his file access or ...
The following tables compare general and technical information for a number of File Transfer Protocol (FTP) clients. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions, or external programs.
Name FOSS Platform Details CrushFTP Server: No, proprietary macOS, Windows, Linux, *BSD, Solaris, etc. FTP, FTPS, SFTP, SCP, HTTP, HTTPS, WebDAV and WebDAV over SSL, AS2, AS3, Plugin API, Windows Active Directory / LDAP authentication, SQL authentication, GUI remote administration, Events / Alerts, X.509 user auth for HTTPS/FTPS/FTPES, MD5 hash calculations on all file transfers, Protocol ...
One is that the FTP client and FTP server use the PASV command, which causes the data connection to be established from the FTP client to the server. [13] This is widely used by modern FTP clients. Another approach is for the NAT to alter the values of the PORT command, using an application-level gateway for this purpose.
Below is a list of FTP commands that may be sent to a File Transfer Protocol (FTP) server. It includes all commands that are standardized by the Internet Engineering Task Force (IETF) in RFC 959, plus extensions.
FTP bounce attack is an exploit of the FTP protocol whereby an attacker is able to use the PORT command to request access to ports indirectly through the use of the victim machine, which serves as a proxy for the request, similar to an Open mail relay using SMTP.
Two separate methods were developed to invoke client security for use with FTP clients: Implicit and Explicit.While the implicit method requires that a Transport Layer Security is established from the beginning of the connection, which in turn breaks the compatibility with non-FTPS-aware clients and servers, the explicit method uses standard FTP protocol commands and replies in order to ...
Initial versions were FTP only. There were no connection restrictions in version 1.x. CrushFTP 2.x brought about virtual directories in a sense, while CrushFTP 3.x [3] brought about a full virtual file system. It supported the ability to merge and mangle several file systems together regardless if they were from local folders, or another FTP site.