Port 4427
drizzle · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | drizzle |
| Registered | 2008-07-09 |
Frequently asked questions
What is port 4427 used for?
Port 4427 is registered with the IANA for drizzle (TCP/UDP). Description: Drizzle database server; Reserved.
Is port 4427 a well-known port?
No. Port 4427 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4427 is open?
Locally on Linux with ss -tulpn | grep ':4427\b', on Windows with netstat -ano | findstr :4427. To test a remote host use Test-NetConnection <host> -Port 4427 in PowerShell or nc -zv <host> 4427 on Linux/macOS.
How do I open port 4427 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4427/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4427/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4427" -Direction Inbound -Protocol TCP -LocalPort 4427 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | drizzle | Drizzle database server |
| UDP | – | Reserved |