All ports
Port1591/UDP
ncpm-pmPort
1591
Protocol
UDP
Category
Registered
Service
ncpm-pm
What is port 1591?
Port 1591/UDP is a Registered port, registered with IANA for specific applications. It is associated with the ncpm-pm service.
ncpm-pm
Useful commands
nmapnmap -p 1591 -sV example.comnetcatnc -zv example.com 1591curlcurl -v http://example.com:1591/telnettelnet example.com 1591bash(echo > /dev/udp/example.com/1591) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1591/udpDeny
sudo ufw deny 1591/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 1591 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 1591 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1591/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1591" dir=in action=allow protocol=UDP localport=1591Security 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- Outdated versions with vulnerabilities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 1591/UDP?
Port 1591/UDP is associated with the ncpm-pm service. ncpm-pm
Is it safe to expose port 1591 to the Internet?
It depends on the service and configuration. Port 1591 (ncpm-pm) 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 1591 is open?
You can use nmap: `nmap -p 1591 -sV example.com`, netcat: `nc -zv example.com 1591`, or the bash command: `(echo > /dev/udp/example.com/1591) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1591 on my firewall?
On Linux with UFW: `sudo ufw allow 1591/udp` (open) or `sudo ufw deny 1591/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 1591 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1591" dir=in action=allow protocol=UDP localport=1591`.
What applications and services use port 1591?
Port 1591/UDP is used by the ncpm-pm service. Specific uses depend on the software and configuration. Check our related tools section for more information.