Port 4786

smart-install · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicesmart-install
Registered2009-08-24

Frequently asked questions

What is port 4786 used for?

Port 4786 is registered with the IANA for smart-install (TCP/UDP). Description: Smart Install Service; Reserved.

Is port 4786 a well-known port?

No. Port 4786 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4786 is open?

Locally on Linux with ss -tulpn | grep ':4786\b', on Windows with netstat -ano | findstr :4786. To test a remote host use Test-NetConnection <host> -Port 4786 in PowerShell or nc -zv <host> 4786 on Linux/macOS.

How do I open port 4786 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4786/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4786/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4786" -Direction Inbound -Protocol TCP -LocalPort 4786 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPsmart-installSmart Install Service
UDP–Reserved

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