Port 989
ftps-data · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | ftps-data |
Frequently asked questions
What is port 989 used for?
Port 989 is registered with the IANA for ftps-data (TCP/UDP). Description: ftp protocol, data, over TLS/SSL.
Is port 989 a well-known port?
Yes. Port 989 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 989 is open?
Locally on Linux with ss -tulpn | grep ':989\b', on Windows with netstat -ano | findstr :989. To test a remote host use Test-NetConnection <host> -Port 989 in PowerShell or nc -zv <host> 989 on Linux/macOS.
How do I open port 989 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 989/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=989/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 989" -Direction Inbound -Protocol TCP -LocalPort 989 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ftps-data | ftp protocol, data, over TLS/SSL |
| UDP | ftps-data | ftp protocol, data, over TLS/SSL |