Port 8042

fs-agent · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicefs-agent
Registered2008-10-16

Frequently asked questions

What is port 8042 used for?

Port 8042 is registered with the IANA for fs-agent (TCP/UDP). Description: FireScope Agent; Reserved.

Is port 8042 a well-known port?

No. Port 8042 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 8042 is open?

Locally on Linux with ss -tulpn | grep ':8042\b', on Windows with netstat -ano | findstr :8042. To test a remote host use Test-NetConnection <host> -Port 8042 in PowerShell or nc -zv <host> 8042 on Linux/macOS.

How do I open port 8042 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 8042/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=8042/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 8042" -Direction Inbound -Protocol TCP -LocalPort 8042 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPfs-agentFireScope Agent
UDP–Reserved

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