Port 442
cvc-hostd and cvc_hostd · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | cvc-hostd and cvc_hostd |
Frequently asked questions
What is port 442 used for?
Port 442 is registered with the IANA for cvc-hostd and cvc_hostd (TCP/UDP). Description: cvc_hostd IANA assigned this well-formed service name as a replacement for "cvc_hostd".; cvc_hostd.
Is port 442 a well-known port?
Yes. Port 442 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 442 is open?
Locally on Linux with ss -tulpn | grep ':442\b', on Windows with netstat -ano | findstr :442. To test a remote host use Test-NetConnection <host> -Port 442 in PowerShell or nc -zv <host> 442 on Linux/macOS.
How do I open port 442 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 442/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=442/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 442" -Direction Inbound -Protocol TCP -LocalPort 442 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | cvc-hostd | cvc_hostd IANA assigned this well-formed service name as a replacement for "cvc_hostd". |
| TCP | cvc_hostd | cvc_hostd |
| UDP | cvc-hostd | cvc_hostd IANA assigned this well-formed service name as a replacement for "cvc_hostd". |
| UDP | cvc_hostd | cvc_hostd |