Internet-Security.com TCP port 2100 details

Oracle Database XML DB (XDB) built‑in FTP service commonly listens on TCP port 2100 by default, providing FTP access to the XML DB repository (seen in Oracle 9i/10g/11g when FTP is enabled). Associated with hacking: historic remote buffer overflow flaws in the Oracle XDB FTP service (e.g., CVE-2003-0727) were widely exploited, typically targeting port 2100.
Amiga NetFS (service name amiganetfs) uses TCP port 2100 for its network filesystem server (e.g., NetFSd) on AmigaOS/MorphOS systems.

TCP 2100