All ports
Port2083/UDP
radsecPort
2083
Protocol
UDP
Category
Registered
Service
radsec
What is port 2083?
Port 2083/UDP is a Registered port, registered with IANA for specific applications. It is associated with the radsec service.
Secure Radius Service
Useful commands
nmapnmap -p 2083 -sV example.comnetcatnc -zv example.com 2083curlcurl -v http://example.com:2083/telnettelnet example.com 2083bash(echo > /dev/udp/example.com/2083) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2083/udpDeny
sudo ufw deny 2083/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 2083 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 2083 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2083/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2083" dir=in action=allow protocol=UDP localport=2083Security 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- Outdated versions with vulnerabilities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 2083/UDP?
Port 2083/UDP is associated with the radsec service. Secure Radius Service
Is it safe to expose port 2083 to the Internet?
It depends on the service and configuration. Port 2083 (radsec) 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 2083 is open?
You can use nmap: `nmap -p 2083 -sV example.com`, netcat: `nc -zv example.com 2083`, or the bash command: `(echo > /dev/udp/example.com/2083) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2083 on my firewall?
On Linux with UFW: `sudo ufw allow 2083/udp` (open) or `sudo ufw deny 2083/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 2083 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2083" dir=in action=allow protocol=UDP localport=2083`.
What applications and services use port 2083?
Port 2083/UDP is used by the radsec service. Specific uses depend on the software and configuration. Check our related tools section for more information.