All ports
Port2704/TCP
sms-remctrlPort
2704
Protocol
TCP
Category
Registered
Service
sms-remctrl
What is port 2704?
Port 2704/TCP is a Registered port, registered with IANA for specific applications. It is associated with the sms-remctrl service.
SMS REMCTRL
Useful commands
nmapnmap -p 2704 -sV example.comnetcatnc -zv example.com 2704curlcurl -v http://example.com:2704/telnettelnet example.com 2704bash(echo > /dev/tcp/example.com/2704) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2704/tcpDeny
sudo ufw deny 2704/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 2704 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 2704 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2704/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2704" dir=in action=allow protocol=TCP localport=2704Security 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- Outdated versions with vulnerabilities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 2704/TCP?
Port 2704/TCP is associated with the sms-remctrl service. SMS REMCTRL
Is it safe to expose port 2704 to the Internet?
It depends on the service and configuration. Port 2704 (sms-remctrl) 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 2704 is open?
You can use nmap: `nmap -p 2704 -sV example.com`, netcat: `nc -zv example.com 2704`, or the bash command: `(echo > /dev/tcp/example.com/2704) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2704 on my firewall?
On Linux with UFW: `sudo ufw allow 2704/tcp` (open) or `sudo ufw deny 2704/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 2704 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2704" dir=in action=allow protocol=TCP localport=2704`.
What applications and services use port 2704?
Port 2704/TCP is used by the sms-remctrl service. Specific uses depend on the software and configuration. Check our related tools section for more information.