All ports
Port5722/UDP
msdfsrPort
5722
Protocol
UDP
Category
Registered
Service
msdfsr
What is port 5722?
Port 5722/UDP is a Registered port, registered with IANA for specific applications. It is associated with the msdfsr service.
Microsoft DFS Replication Service
Useful commands
nmapnmap -p 5722 -sV example.comnetcatnc -zv example.com 5722curlcurl -v http://example.com:5722/telnettelnet example.com 5722bash(echo > /dev/udp/example.com/5722) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5722/udpDeny
sudo ufw deny 5722/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 5722 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 5722 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5722/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5722" dir=in action=allow protocol=UDP localport=5722Security 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- Outdated versions with vulnerabilities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 5722/UDP?
Port 5722/UDP is associated with the msdfsr service. Microsoft DFS Replication Service
Is it safe to expose port 5722 to the Internet?
It depends on the service and configuration. Port 5722 (msdfsr) 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 5722 is open?
You can use nmap: `nmap -p 5722 -sV example.com`, netcat: `nc -zv example.com 5722`, or the bash command: `(echo > /dev/udp/example.com/5722) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5722 on my firewall?
On Linux with UFW: `sudo ufw allow 5722/udp` (open) or `sudo ufw deny 5722/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 5722 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5722" dir=in action=allow protocol=UDP localport=5722`.
What applications and services use port 5722?
Port 5722/UDP is used by the msdfsr service. Specific uses depend on the software and configuration. Check our related tools section for more information.