Port 658
tenfold · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | tenfold |
Frequently asked questions
What is port 658 used for?
Port 658 is registered with the IANA for tenfold (TCP/UDP). Description: TenFold.
Is port 658 a well-known port?
Yes. Port 658 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 658 is open?
Locally on Linux with ss -tulpn | grep ':658\b', on Windows with netstat -ano | findstr :658. To test a remote host use Test-NetConnection <host> -Port 658 in PowerShell or nc -zv <host> 658 on Linux/macOS.
How do I open port 658 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 658/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=658/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 658" -Direction Inbound -Protocol TCP -LocalPort 658 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | tenfold | TenFold |
| UDP | tenfold | TenFold |