All ports
Port4557/UDP
mtcevrunqssPort
4557
Protocol
UDP
Category
Registered
Service
mtcevrunqss
What is port 4557?
Port 4557/UDP is a Registered port, registered with IANA for specific applications. It is associated with the mtcevrunqss service.
Marathon everRun Quorum Service Server
Useful commands
nmapnmap -p 4557 -sV example.comnetcatnc -zv example.com 4557curlcurl -v http://example.com:4557/telnettelnet example.com 4557bash(echo > /dev/udp/example.com/4557) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4557/udpDeny
sudo ufw deny 4557/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4557 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4557 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4557/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4557" dir=in action=allow protocol=UDP localport=4557Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 4557/UDP?
Port 4557/UDP is associated with the mtcevrunqss service. Marathon everRun Quorum Service Server
Is it safe to expose port 4557 to the Internet?
It depends on the service and configuration. Port 4557 (mtcevrunqss) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 4557 is open?
You can use nmap: `nmap -p 4557 -sV example.com`, netcat: `nc -zv example.com 4557`, or the bash command: `(echo > /dev/udp/example.com/4557) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4557 on my firewall?
On Linux with UFW: `sudo ufw allow 4557/udp` (open) or `sudo ufw deny 4557/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4557 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4557" dir=in action=allow protocol=UDP localport=4557`.
What applications and services use port 4557?
Port 4557/UDP is used by the mtcevrunqss service. Specific uses depend on the software and configuration. Check our related tools section for more information.