All ports
Port4159/UDP
nssPort
4159
Protocol
UDP
Category
Registered
Service
nss
What is port 4159?
Port 4159/UDP is a Registered port, registered with IANA for specific applications. It is associated with the nss service.
Network Security Service
Useful commands
nmapnmap -p 4159 -sV example.comnetcatnc -zv example.com 4159curlcurl -v http://example.com:4159/telnettelnet example.com 4159bash(echo > /dev/udp/example.com/4159) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4159/udpDeny
sudo ufw deny 4159/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4159 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4159 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4159/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4159" dir=in action=allow protocol=UDP localport=4159Security 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- Outdated versions with vulnerabilities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 4159/UDP?
Port 4159/UDP is associated with the nss service. Network Security Service
Is it safe to expose port 4159 to the Internet?
It depends on the service and configuration. Port 4159 (nss) 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 4159 is open?
You can use nmap: `nmap -p 4159 -sV example.com`, netcat: `nc -zv example.com 4159`, or the bash command: `(echo > /dev/udp/example.com/4159) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4159 on my firewall?
On Linux with UFW: `sudo ufw allow 4159/udp` (open) or `sudo ufw deny 4159/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4159 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4159" dir=in action=allow protocol=UDP localport=4159`.
What applications and services use port 4159?
Port 4159/UDP is used by the nss service. Specific uses depend on the software and configuration. Check our related tools section for more information.