Port 4403
ds-user · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ds-user |
Frequently asked questions
What is port 4403 used for?
Port 4403 is registered with the IANA for ds-user (TCP/UDP). Description: ASIGRA Televaulting DS-Client Monitoring/Management.
Is port 4403 a well-known port?
No. Port 4403 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4403 is open?
Locally on Linux with ss -tulpn | grep ':4403\b', on Windows with netstat -ano | findstr :4403. To test a remote host use Test-NetConnection <host> -Port 4403 in PowerShell or nc -zv <host> 4403 on Linux/macOS.
How do I open port 4403 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4403/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4403/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4403" -Direction Inbound -Protocol TCP -LocalPort 4403 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ds-user | ASIGRA Televaulting DS-Client Monitoring/Management |
| UDP | ds-user | ASIGRA Televaulting DS-Client Monitoring/Management |