All ports
Port3365/UDP
contentserverPort
3365
Protocol
UDP
Category
Registered
Service
contentserver
What is port 3365?
Port 3365/UDP is a Registered port, registered with IANA for specific applications. It is associated with the contentserver service.
Content Server
Useful commands
nmapnmap -p 3365 -sV example.comnetcatnc -zv example.com 3365curlcurl -v http://example.com:3365/telnettelnet example.com 3365bash(echo > /dev/udp/example.com/3365) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3365/udpDeny
sudo ufw deny 3365/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3365 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3365 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3365/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3365" dir=in action=allow protocol=UDP localport=3365Security 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- Outdated versions with vulnerabilities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 3365/UDP?
Port 3365/UDP is associated with the contentserver service. Content Server
Is it safe to expose port 3365 to the Internet?
It depends on the service and configuration. Port 3365 (contentserver) 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 3365 is open?
You can use nmap: `nmap -p 3365 -sV example.com`, netcat: `nc -zv example.com 3365`, or the bash command: `(echo > /dev/udp/example.com/3365) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3365 on my firewall?
On Linux with UFW: `sudo ufw allow 3365/udp` (open) or `sudo ufw deny 3365/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3365 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3365" dir=in action=allow protocol=UDP localport=3365`.
What applications and services use port 3365?
Port 3365/UDP is used by the contentserver service. Specific uses depend on the software and configuration. Check our related tools section for more information.