Apache FtpServer

Spec sheet

Purpose

Apache FtpServer is a pure Java FTP server designed as a portable server engine that can run standalone or be embedded in a Java application.Read 8 Oct 2026 · mina.apache.org

Deployment

FtpServer can run as a Windows service or Unix/Linux daemon and can be embedded in Java applications.Read 8 Oct 2026 · mina.apache.org

Integrations

The project provides integration with Spring applications and distributes releases as OSGi bundles.Read 8 Oct 2026 · mina.apache.org

Security

The feature list states that implicit and explicit SSL/TLS are supported.Read 8 Oct 2026 · mina.apache.org

Support

Users are directed to the FtpServer users mailing list for questions about using the product.Read 8 Oct 2026 · mina.apache.org

Access controls

Listed controls include virtual directories, write permissions, idle timeouts, bandwidth limits, and IP restrictions.Read 8 Oct 2026 · mina.apache.org

Downloads

The 1.2.1 release page offers binary and source distributions in ZIP, tar.gz, and tar.bz2 formats, with hashes and PGP signatures.Read 8 Oct 2026 · mina.apache.org

Extensibility

The Ftplet API lets Java code process FTP event notifications, and custom user managers, IP restrictors, and loggers can be added.Read 8 Oct 2026 · mina.apache.org

FTP features

The server supports resumable uploads and downloads, ASCII and binary transfers, anonymous login, and customizable FTP messages.Read 8 Oct 2026 · mina.apache.org

Notable limit

The FAQ explains that frequent client connections and disconnections can exhaust operating-system file handles because closed sockets remain in TIME_WAIT.Read 8 Oct 2026 · mina.apache.org

Protocols

The documentation lists support for RFC 959, RFC 2228, RFC 2389, RFC 2428, and RFC 2640.Read 8 Oct 2026 · mina.apache.org

Scaling

Its default network support uses Apache MINA, which the project says can scale to a large number of concurrent users.Read 8 Oct 2026 · mina.apache.org

User data

User data can be stored in a database or file, and custom user managers can be added.Read 8 Oct 2026 · mina.apache.org

Plans and prices

Every Apache FtpServer plan and price →

Where Specifiction places it

• FTP Server Software#12 of 338.2