All ports
Port1818/TCP
etftpPort
1818
Protocol
TCP
Category
Registered
Service
etftp
What is port 1818?
Port 1818/TCP is a Registered port, registered with IANA for specific applications. It is associated with the etftp service.
Enhanced Trivial File Transfer Protocol
Useful commands
nmapnmap -p 1818 -sV example.comnetcatnc -zv example.com 1818curlcurl -v http://example.com:1818/telnettelnet example.com 1818bash(echo > /dev/tcp/example.com/1818) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1818/tcpDeny
sudo ufw deny 1818/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1818 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1818 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1818/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1818" dir=in action=allow protocol=TCP localport=1818Security 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- Outdated versions with vulnerabilities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 1818/TCP?
Port 1818/TCP is associated with the etftp service. Enhanced Trivial File Transfer Protocol
Is it safe to expose port 1818 to the Internet?
It depends on the service and configuration. Port 1818 (etftp) 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 1818 is open?
You can use nmap: `nmap -p 1818 -sV example.com`, netcat: `nc -zv example.com 1818`, or the bash command: `(echo > /dev/tcp/example.com/1818) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1818 on my firewall?
On Linux with UFW: `sudo ufw allow 1818/tcp` (open) or `sudo ufw deny 1818/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1818 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1818" dir=in action=allow protocol=TCP localport=1818`.
What applications and services use port 1818?
Port 1818/TCP is used by the etftp service. Specific uses depend on the software and configuration. Check our related tools section for more information.