Port 4345

m4-network-as · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicem4-network-as

Frequently asked questions

What is port 4345 used for?

Port 4345 is registered with the IANA for m4-network-as (TCP/UDP). Description: Macro 4 Network AS.

Is port 4345 a well-known port?

No. Port 4345 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4345 is open?

Locally on Linux with ss -tulpn | grep ':4345\b', on Windows with netstat -ano | findstr :4345. To test a remote host use Test-NetConnection <host> -Port 4345 in PowerShell or nc -zv <host> 4345 on Linux/macOS.

How do I open port 4345 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4345/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4345/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4345" -Direction Inbound -Protocol TCP -LocalPort 4345 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPm4-network-asMacro 4 Network AS
UDPm4-network-asMacro 4 Network AS

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