Port 6123

backup-express · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicebackup-express
Registered2008-03-19
Modified2015-02-04

Frequently asked questions

What is port 6123 used for?

Port 6123 is registered with the IANA for backup-express (TCP/UDP). Description: Backup Express.

Is port 6123 a well-known port?

No. Port 6123 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 6123 is open?

Locally on Linux with ss -tulpn | grep ':6123\b', on Windows with netstat -ano | findstr :6123. To test a remote host use Test-NetConnection <host> -Port 6123 in PowerShell or nc -zv <host> 6123 on Linux/macOS.

How do I open port 6123 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 6123/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6123/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6123" -Direction Inbound -Protocol TCP -LocalPort 6123 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPbackup-expressBackup Express
UDPbackup-expressBackup Express

Nearby entries