All ports
Port9955/UDP
alljoyn-mcmPort
9955
Protocol
UDP
Category
Registered
Service
alljoyn-mcm
What is port 9955?
Port 9955/UDP is a Registered port, registered with IANA for specific applications. It is associated with the alljoyn-mcm service.
Contact Port for AllJoyn multiplexed constrained messaging
Useful commands
nmapnmap -p 9955 -sV example.comnetcatnc -zv example.com 9955curlcurl -v http://example.com:9955/telnettelnet example.com 9955bash(echo > /dev/udp/example.com/9955) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 9955/udpDeny
sudo ufw deny 9955/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 9955 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 9955 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=9955/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 9955" dir=in action=allow protocol=UDP localport=9955Security 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- Outdated versions with vulnerabilities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 9955/UDP?
Port 9955/UDP is associated with the alljoyn-mcm service. Contact Port for AllJoyn multiplexed constrained messaging
Is it safe to expose port 9955 to the Internet?
It depends on the service and configuration. Port 9955 (alljoyn-mcm) 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 9955 is open?
You can use nmap: `nmap -p 9955 -sV example.com`, netcat: `nc -zv example.com 9955`, or the bash command: `(echo > /dev/udp/example.com/9955) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 9955 on my firewall?
On Linux with UFW: `sudo ufw allow 9955/udp` (open) or `sudo ufw deny 9955/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 9955 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 9955" dir=in action=allow protocol=UDP localport=9955`.
What applications and services use port 9955?
Port 9955/UDP is used by the alljoyn-mcm service. Specific uses depend on the software and configuration. Check our related tools section for more information.