Port 18186

ohsc · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceohsc
Registered2003-08

Frequently asked questions

What is port 18186 used for?

Port 18186 is registered with the IANA for ohsc (TCP/UDP). Description: Occupational Health SC; Occupational Health Sc.

Is port 18186 a well-known port?

No. Port 18186 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 18186 is open?

Locally on Linux with ss -tulpn | grep ':18186\b', on Windows with netstat -ano | findstr :18186. To test a remote host use Test-NetConnection <host> -Port 18186 in PowerShell or nc -zv <host> 18186 on Linux/macOS.

How do I open port 18186 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 18186/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=18186/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 18186" -Direction Inbound -Protocol TCP -LocalPort 18186 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPohscOccupational Health SC
UDPohscOccupational Health Sc

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