Port 115 — Simple File Transfer Protocol

TCPFile Sharing

IANA assigns TCP 115 to the historical Simple File Transfer Protocol. Its SFTP abbreviation must not be confused with SSH File Transfer Protocol.

Registry assignments, software defaults and local listeners are different things. A port number alone does not identify or secure a service.

Configuration and troubleshooting

For SSH file transfer clients, check the SSH server endpoint, normally starting with 22. Opening 115 does not enable SSH-based SFTP.

Important limitations

A historical assignment does not mean a host runs that protocol or that modern software should use this port.

Read-only checks: run on the server host

Choose the commands for your OS. Check TCP and UDP separately. No result is not a lasting availability guarantee; inspect host and container separately.

Linux

sudo ss -ltnp 'sport = :115'

macOS

sudo lsof -nP -iTCP:115 -sTCP:LISTEN

Windows PowerShell

Get-NetTCPConnection -LocalPort 115 -State Listen

Sources and review

Sources checked on: 2026-09-05

This review covers the explanations and sources on this page, not your device or every community software entry below.

Software Using This Port (1 software)

Community software entries: links are references, not individual verification.

Simple File Transfer Protocol (historical)

IANA assigns TCP 115 to the historical Simple File Transfer Protocol. Its SFTP abbreviation must not be confused with SSH File Transfer Protocol.

Reference link ↗

Usage Suggestions

Before using port 115, please confirm it is not occupied by other services
If you encounter port conflicts, consider using other ports or stopping the occupying service