All ports
Port4883/TCP
wmlserverPort
4883
Protocol
TCP
Category
Registered
Service
wmlserver
What is port 4883?
Port 4883/TCP is a Registered port, registered with IANA for specific applications. It is associated with the wmlserver service.
Meier-Phelps License Server
Useful commands
nmapnmap -p 4883 -sV example.comnetcatnc -zv example.com 4883curlcurl -v http://example.com:4883/telnettelnet example.com 4883bash(echo > /dev/tcp/example.com/4883) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4883/tcpDeny
sudo ufw deny 4883/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 4883 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 4883 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4883/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4883" dir=in action=allow protocol=TCP localport=4883Security 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- Outdated versions with vulnerabilities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 4883/TCP?
Port 4883/TCP is associated with the wmlserver service. Meier-Phelps License Server
Is it safe to expose port 4883 to the Internet?
It depends on the service and configuration. Port 4883 (wmlserver) 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 4883 is open?
You can use nmap: `nmap -p 4883 -sV example.com`, netcat: `nc -zv example.com 4883`, or the bash command: `(echo > /dev/tcp/example.com/4883) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4883 on my firewall?
On Linux with UFW: `sudo ufw allow 4883/tcp` (open) or `sudo ufw deny 4883/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 4883 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4883" dir=in action=allow protocol=TCP localport=4883`.
What applications and services use port 4883?
Port 4883/TCP is used by the wmlserver service. Specific uses depend on the software and configuration. Check our related tools section for more information.