Port 507
crs · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | crs |
Frequently asked questions
What is port 507 used for?
Port 507 is registered with the IANA for crs (TCP/UDP). Description: crs.
Is port 507 a well-known port?
Yes. Port 507 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 507 is open?
Locally on Linux with ss -tulpn | grep ':507\b', on Windows with netstat -ano | findstr :507. To test a remote host use Test-NetConnection <host> -Port 507 in PowerShell or nc -zv <host> 507 on Linux/macOS.
How do I open port 507 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 507/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=507/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 507" -Direction Inbound -Protocol TCP -LocalPort 507 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | crs | crs |
| UDP | crs | crs |