All ports
Port3725/TCP
na-er-tipPort
3725
Protocol
TCP
Category
Registered
Service
na-er-tip
What is port 3725?
Port 3725/TCP is a Registered port, registered with IANA for specific applications. It is associated with the na-er-tip service.
Netia NA-ER Port
Useful commands
nmapnmap -p 3725 -sV example.comnetcatnc -zv example.com 3725curlcurl -v http://example.com:3725/telnettelnet example.com 3725bash(echo > /dev/tcp/example.com/3725) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3725/tcpDeny
sudo ufw deny 3725/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3725 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3725 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3725/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3725" dir=in action=allow protocol=TCP localport=3725Security 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- Outdated versions with vulnerabilities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 3725/TCP?
Port 3725/TCP is associated with the na-er-tip service. Netia NA-ER Port
Is it safe to expose port 3725 to the Internet?
It depends on the service and configuration. Port 3725 (na-er-tip) 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 3725 is open?
You can use nmap: `nmap -p 3725 -sV example.com`, netcat: `nc -zv example.com 3725`, or the bash command: `(echo > /dev/tcp/example.com/3725) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3725 on my firewall?
On Linux with UFW: `sudo ufw allow 3725/tcp` (open) or `sudo ufw deny 3725/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3725 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3725" dir=in action=allow protocol=TCP localport=3725`.
What applications and services use port 3725?
Port 3725/TCP is used by the na-er-tip service. Specific uses depend on the software and configuration. Check our related tools section for more information.