Port 4557

mtcevrunqss · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicemtcevrunqss
Registered2009-06-18

Frequently asked questions

What is port 4557 used for?

Port 4557 is registered with the IANA for mtcevrunqss (TCP/UDP). Description: Reserved; Marathon everRun Quorum Service Server.

Is port 4557 a well-known port?

No. Port 4557 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4557 is open?

Locally on Linux with ss -tulpn | grep ':4557\b', on Windows with netstat -ano | findstr :4557. To test a remote host use Test-NetConnection <host> -Port 4557 in PowerShell or nc -zv <host> 4557 on Linux/macOS.

How do I open port 4557 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4557/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4557/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4557" -Direction Inbound -Protocol TCP -LocalPort 4557 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCP–Reserved
UDPmtcevrunqssMarathon everRun Quorum Service Server

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