Port 3896

sdo-tls · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicesdo-tls
Registered2003-10

Frequently asked questions

What is port 3896 used for?

Port 3896 is registered with the IANA for sdo-tls (TCP/UDP). Description: Simple Distributed Objects over TLS.

Is port 3896 a well-known port?

No. Port 3896 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3896 is open?

Locally on Linux with ss -tulpn | grep ':3896\b', on Windows with netstat -ano | findstr :3896. To test a remote host use Test-NetConnection <host> -Port 3896 in PowerShell or nc -zv <host> 3896 on Linux/macOS.

How do I open port 3896 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3896/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3896/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3896" -Direction Inbound -Protocol TCP -LocalPort 3896 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPsdo-tlsSimple Distributed Objects over TLS
UDPsdo-tlsSimple Distributed Objects over TLS

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