Port 18635

rds-ip · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicerds-ip
Registered2009-05-20

Frequently asked questions

What is port 18635 used for?

Port 18635 is registered with the IANA for rds-ip (TCP/UDP). Description: Reliable Datagram Service over IP.

Is port 18635 a well-known port?

No. Port 18635 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 18635 is open?

Locally on Linux with ss -tulpn | grep ':18635\b', on Windows with netstat -ano | findstr :18635. To test a remote host use Test-NetConnection <host> -Port 18635 in PowerShell or nc -zv <host> 18635 on Linux/macOS.

How do I open port 18635 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 18635/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=18635/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 18635" -Direction Inbound -Protocol TCP -LocalPort 18635 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPrds-ipReliable Datagram Service over IP
UDPrds-ipReliable Datagram Service over IP

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