Port 4690

prelude · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceprelude
Registered2005-08

Frequently asked questions

What is port 4690 used for?

Port 4690 is registered with the IANA for prelude (TCP/UDP). Description: Prelude IDS message proto.

Is port 4690 a well-known port?

No. Port 4690 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4690 is open?

Locally on Linux with ss -tulpn | grep ':4690\b', on Windows with netstat -ano | findstr :4690. To test a remote host use Test-NetConnection <host> -Port 4690 in PowerShell or nc -zv <host> 4690 on Linux/macOS.

How do I open port 4690 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4690/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4690/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4690" -Direction Inbound -Protocol TCP -LocalPort 4690 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPpreludePrelude IDS message proto
UDPpreludePrelude IDS message proto

Nearby entries