All ports
Port664/UDP
asf-secure-rmcpPort
664
Protocol
UDP
Category
Well-Known
Service
asf-secure-rmcp
What is port 664?
Port 664/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the asf-secure-rmcp service.
ASF Secure Remote Management and Control Protocol
Useful commands
nmapnmap -p 664 -sV example.comnetcatnc -zv example.com 664curlcurl -v http://example.com:664/telnettelnet example.com 664bash(echo > /dev/udp/example.com/664) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 664/udpDeny
sudo ufw deny 664/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 664 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 664 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=664/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 664" dir=in action=allow protocol=UDP localport=664Security 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- Outdated versions with vulnerabilities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 664/UDP?
Port 664/UDP is associated with the asf-secure-rmcp service. ASF Secure Remote Management and Control Protocol
Is it safe to expose port 664 to the Internet?
It depends on the service and configuration. Port 664 (asf-secure-rmcp) is a Well-Known 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 664 is open?
You can use nmap: `nmap -p 664 -sV example.com`, netcat: `nc -zv example.com 664`, or the bash command: `(echo > /dev/udp/example.com/664) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 664 on my firewall?
On Linux with UFW: `sudo ufw allow 664/udp` (open) or `sudo ufw deny 664/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 664 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 664" dir=in action=allow protocol=UDP localport=664`.
What applications and services use port 664?
Port 664/UDP is used by the asf-secure-rmcp service. Specific uses depend on the software and configuration. Check our related tools section for more information.