All ports
Port3799/TCP
radius-dynauthPort
3799
Protocol
TCP
Category
Registered
Service
radius-dynauth
What is port 3799?
Port 3799/TCP is a Registered port, registered with IANA for specific applications. It is associated with the radius-dynauth service.
RADIUS Dynamic Authorization
Useful commands
nmapnmap -p 3799 -sV example.comnetcatnc -zv example.com 3799curlcurl -v http://example.com:3799/telnettelnet example.com 3799bash(echo > /dev/tcp/example.com/3799) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3799/tcpDeny
sudo ufw deny 3799/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3799 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3799 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3799/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3799" dir=in action=allow protocol=TCP localport=3799Security 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- Outdated versions with vulnerabilities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 3799/TCP?
Port 3799/TCP is associated with the radius-dynauth service. RADIUS Dynamic Authorization
Is it safe to expose port 3799 to the Internet?
It depends on the service and configuration. Port 3799 (radius-dynauth) 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 3799 is open?
You can use nmap: `nmap -p 3799 -sV example.com`, netcat: `nc -zv example.com 3799`, or the bash command: `(echo > /dev/tcp/example.com/3799) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3799 on my firewall?
On Linux with UFW: `sudo ufw allow 3799/tcp` (open) or `sudo ufw deny 3799/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3799 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3799" dir=in action=allow protocol=TCP localport=3799`.
What applications and services use port 3799?
Port 3799/TCP is used by the radius-dynauth service. Specific uses depend on the software and configuration. Check our related tools section for more information.