Port 2161

apc-2161 · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceapc-2161

Frequently asked questions

What is port 2161 used for?

Port 2161 is registered with the IANA for apc-2161 (TCP/UDP). Description: APC 2161.

Is port 2161 a well-known port?

No. Port 2161 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2161 is open?

Locally on Linux with ss -tulpn | grep ':2161\b', on Windows with netstat -ano | findstr :2161. To test a remote host use Test-NetConnection <host> -Port 2161 in PowerShell or nc -zv <host> 2161 on Linux/macOS.

How do I open port 2161 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2161/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2161/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2161" -Direction Inbound -Protocol TCP -LocalPort 2161 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPapc-2161APC 2161
UDPapc-2161APC 2161

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