Port 19998
iec-104-sec · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | iec-104-sec |
| Registered | 2010-10-18 |
Frequently asked questions
What is port 19998 used for?
Port 19998 is registered with the IANA for iec-104-sec (TCP/UDP). Description: IEC 60870-5-104 process control - secure; Reserved.
Is port 19998 a well-known port?
No. Port 19998 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 19998 is open?
Locally on Linux with ss -tulpn | grep ':19998\b', on Windows with netstat -ano | findstr :19998. To test a remote host use Test-NetConnection <host> -Port 19998 in PowerShell or nc -zv <host> 19998 on Linux/macOS.
How do I open port 19998 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 19998/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=19998/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 19998" -Direction Inbound -Protocol TCP -LocalPort 19998 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | iec-104-sec | IEC 60870-5-104 process control - secure |
| UDP | – | Reserved |