All ports
Port363/UDP
rsvp_tunnelPort
363
Protocol
UDP
Category
Well-Known
Service
rsvp_tunnel
What is port 363?
Port 363/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the rsvp_tunnel service.
RSVP Tunnel
Useful commands
nmapnmap -p 363 -sV example.comnetcatnc -zv example.com 363curlcurl -v http://example.com:363/telnettelnet example.com 363bash(echo > /dev/udp/example.com/363) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 363/udpDeny
sudo ufw deny 363/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 363 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 363 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=363/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 363" dir=in action=allow protocol=UDP localport=363Security 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- Outdated versions with vulnerabilities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 363/UDP?
Port 363/UDP is associated with the rsvp_tunnel service. RSVP Tunnel
Is it safe to expose port 363 to the Internet?
It depends on the service and configuration. Port 363 (rsvp_tunnel) is a Well-Known 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 363 is open?
You can use nmap: `nmap -p 363 -sV example.com`, netcat: `nc -zv example.com 363`, or the bash command: `(echo > /dev/udp/example.com/363) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 363 on my firewall?
On Linux with UFW: `sudo ufw allow 363/udp` (open) or `sudo ufw deny 363/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 363 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 363" dir=in action=allow protocol=UDP localport=363`.
What applications and services use port 363?
Port 363/UDP is used by the rsvp_tunnel service. Specific uses depend on the software and configuration. Check our related tools section for more information.