All ports
Port5550/TCP
cbusPort
5550
Protocol
TCP
Category
Registered
Service
cbus
What is port 5550?
Port 5550/TCP is a Registered port, registered with IANA for specific applications. It is associated with the cbus service.
Model Railway control using the CBUS message protocol
Useful commands
nmapnmap -p 5550 -sV example.comnetcatnc -zv example.com 5550curlcurl -v http://example.com:5550/telnettelnet example.com 5550bash(echo > /dev/tcp/example.com/5550) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5550/tcpDeny
sudo ufw deny 5550/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 5550 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 5550 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5550/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5550" dir=in action=allow protocol=TCP localport=5550Security 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- Outdated versions with vulnerabilities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 5550/TCP?
Port 5550/TCP is associated with the cbus service. Model Railway control using the CBUS message protocol
Is it safe to expose port 5550 to the Internet?
It depends on the service and configuration. Port 5550 (cbus) 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 5550 is open?
You can use nmap: `nmap -p 5550 -sV example.com`, netcat: `nc -zv example.com 5550`, or the bash command: `(echo > /dev/tcp/example.com/5550) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5550 on my firewall?
On Linux with UFW: `sudo ufw allow 5550/tcp` (open) or `sudo ufw deny 5550/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 5550 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5550" dir=in action=allow protocol=TCP localport=5550`.
What applications and services use port 5550?
Port 5550/TCP is used by the cbus service. Specific uses depend on the software and configuration. Check our related tools section for more information.