All ports
Port4420/TCP
nvmePort
4420
Protocol
TCP
Category
Registered
Service
nvme
What is port 4420?
Port 4420/TCP is a Registered port, registered with IANA for specific applications. It is associated with the nvme service.
NVM Express over Fabrics storage access
Useful commands
nmapnmap -p 4420 -sV example.comnetcatnc -zv example.com 4420curlcurl -v http://example.com:4420/telnettelnet example.com 4420bash(echo > /dev/tcp/example.com/4420) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4420/tcpDeny
sudo ufw deny 4420/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 4420 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 4420 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4420/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4420" dir=in action=allow protocol=TCP localport=4420Security 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- Outdated versions with vulnerabilities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 4420/TCP?
Port 4420/TCP is associated with the nvme service. NVM Express over Fabrics storage access
Is it safe to expose port 4420 to the Internet?
It depends on the service and configuration. Port 4420 (nvme) 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 4420 is open?
You can use nmap: `nmap -p 4420 -sV example.com`, netcat: `nc -zv example.com 4420`, or the bash command: `(echo > /dev/tcp/example.com/4420) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4420 on my firewall?
On Linux with UFW: `sudo ufw allow 4420/tcp` (open) or `sudo ufw deny 4420/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 4420 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4420" dir=in action=allow protocol=TCP localport=4420`.
What applications and services use port 4420?
Port 4420/TCP is used by the nvme service. Specific uses depend on the software and configuration. Check our related tools section for more information.