Port115— Simple File Transfer Protocol
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:LISTENWindows PowerShell
Get-NetTCPConnection -LocalPort 115 -State ListenSources and review
Sources checked on:
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.
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
Frequently asked questions
What is port 115 used for?
Port 115 sits in the File Sharing category. This page lists the registered purpose and the software commonly associated with it; to see what is actually listening on a specific machine, check the process with ss/netstat.
Is port 115 TCP or UDP?
The registered protocol on this page is TCP. The same number behaves independently on each protocol: TCP may be listening while UDP is idle, so check them separately.
How do I check if port 115 is in use?
On Linux: sudo ss -tlnp 'sport = :115' for an exact port match. On macOS: sudo lsof -nP -iTCP:115 -sTCP:LISTEN. On Windows PowerShell: Get-NetTCPConnection -LocalPort 115 -State Listen. A listener counts as confirmed only when you can see the bind address and process name; without root/admin you will not see other users' processes.
Is port 115 secure? Should I open it in my firewall?
A port number has no inherent security — it depends on whether the listening service is correctly configured and whether it needs exposure at all. Keep loopback/internal-only services firewalled; where public access is required, pair it with source restrictions, VPN or authentication. The caution section on this page lists port-specific risks.
Quick Info
- Port
- 115
- Protocol
- TCP
- Categories
- File Sharing
- Usage Status
- 1 software in use
Related Ports
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