Port 4187
csc-proxy and csc_proxy · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | csc-proxy and csc_proxy |
| Registered | 2008-09-11 |
Frequently asked questions
What is port 4187 used for?
Port 4187 is registered with the IANA for csc-proxy and csc_proxy (TCP/UDP). Description: Cascade Proxy IANA assigned this well-formed service name as a replacement for "csc_proxy".; Cascade Proxy; Reserved.
Is port 4187 a well-known port?
No. Port 4187 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4187 is open?
Locally on Linux with ss -tulpn | grep ':4187\b', on Windows with netstat -ano | findstr :4187. To test a remote host use Test-NetConnection <host> -Port 4187 in PowerShell or nc -zv <host> 4187 on Linux/macOS.
How do I open port 4187 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4187/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4187/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4187" -Direction Inbound -Protocol TCP -LocalPort 4187 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | csc-proxy | Cascade Proxy IANA assigned this well-formed service name as a replacement for "csc_proxy". |
| TCP | csc_proxy | Cascade Proxy |
| UDP | – | Reserved |