uFTP server

Spec sheet

Purpose

uFTP is a lightweight FTP server written in C for Unix/Linux and POSIX compliant operating systems.Read 11 Oct 2026 · uftpserver.com

Intended users

The wiki describes the server as suited to embedded Linux developers and small distributions, including initramfs bootloaders.Read 11 Oct 2026 · uftpserver.com

Deployment

The server uses one binary and one configuration file and can be compiled statically.Read 11 Oct 2026 · uftpserver.com

Integrations

The maker says uFTP is compatible with all main FTP clients.Read 11 Oct 2026 · uftpserver.com

License

The project is distributed under the MIT license, which permits reuse in commercial applications.Read 11 Oct 2026 · uftpserver.com

Maker

The author page names Ugo Cirmignani as the uFTP author.Read 10 Oct 2026 · uftpserver.com

Architecture support

The wiki says uFTP runs across Linux distributions and architectures including x86, x64, and ARM.Read 11 Oct 2026 · uftpserver.com

Authentication

PAM authentication using the system password files is an optional build feature.Read 11 Oct 2026 · uftpserver.com

Authentication limitation

The supported FTP commands page says AUTH is not yet implemented and the supported authentication method is plain text.Read 10 Oct 2026 · uftpserver.com

Brute force protection

The server can ban an IP address for five minutes after the configured number of failed logins.Read 11 Oct 2026 · uftpserver.com

Connection limits

Configuration supports a maximum total connection count and a per-IP connection limit.Read 11 Oct 2026 · uftpserver.com

Encryption

The server supports TLS encrypted connections, with TLS-enabled x32 and x64 binaries listed in its installation instructions.Read 10 Oct 2026 · uftpserver.com

FTP client compatibility

The product homepage says it is compatible with all main FTP clients.Read 10 Oct 2026 · uftpserver.com

FTP commands

The command documentation says AUTH is not yet implemented and the supported authentication method is plain text.Read 11 Oct 2026 · uftpserver.com

FTP operations

Documented commands include file listing, upload, download, directory changes, deletion, rename, and SITE CHMOD.Read 10 Oct 2026 · uftpserver.com

IPv6

The wiki states that IPv6 is supported.Read 10 Oct 2026 · uftpserver.com

Setup and documentation

The vendor recommends installing from source and provides an official wiki with installation, configuration, and command documentation.Read 10 Oct 2026 · uftpserver.com

Support and documentation

The project provides an official documentation wiki; its author page identifies Ugo Cirmignani as the project author.Read 11 Oct 2026 · uftpserver.com

Transfer security

TLS support is available, but enabling it requires compiling with OpenSSL support.Read 11 Oct 2026 · uftpserver.com

Use case

The project describes the server as suited to small distributions and initramfs bootloaders, including embedded Linux applications.Read 10 Oct 2026 · uftpserver.com

User access

Each configured FTP user can be assigned a home directory, and administrators can block users from logging in.Read 11 Oct 2026 · uftpserver.com

Plans and prices

Every uFTP server plan and price →

Where Specifiction places it

• FTP Server Software#28 of 337.8