Port 287
k-block · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | k-block |
Frequently asked questions
What is port 287 used for?
Port 287 is registered with the IANA for k-block (TCP/UDP). Description: K-BLOCK.
Is port 287 a well-known port?
Yes. Port 287 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 287 is open?
Locally on Linux with ss -tulpn | grep ':287\b', on Windows with netstat -ano | findstr :287. To test a remote host use Test-NetConnection <host> -Port 287 in PowerShell or nc -zv <host> 287 on Linux/macOS.
How do I open port 287 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 287/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=287/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 287" -Direction Inbound -Protocol TCP -LocalPort 287 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | k-block | K-BLOCK |
| UDP | k-block | K-BLOCK |