All ports
Port9087/UDP
classicPort
9087
Protocol
UDP
Category
Registered
Service
classic
What is port 9087?
Port 9087/UDP is a Registered port, registered with IANA for specific applications. It is associated with the classic service.
Classic Data Server
Useful commands
nmapnmap -p 9087 -sV example.comnetcatnc -zv example.com 9087curlcurl -v http://example.com:9087/telnettelnet example.com 9087bash(echo > /dev/udp/example.com/9087) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 9087/udpDeny
sudo ufw deny 9087/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 9087 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 9087 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=9087/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 9087" dir=in action=allow protocol=UDP localport=9087Security 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- Outdated versions with vulnerabilities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 9087/UDP?
Port 9087/UDP is associated with the classic service. Classic Data Server
Is it safe to expose port 9087 to the Internet?
It depends on the service and configuration. Port 9087 (classic) 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 9087 is open?
You can use nmap: `nmap -p 9087 -sV example.com`, netcat: `nc -zv example.com 9087`, or the bash command: `(echo > /dev/udp/example.com/9087) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 9087 on my firewall?
On Linux with UFW: `sudo ufw allow 9087/udp` (open) or `sudo ufw deny 9087/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 9087 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 9087" dir=in action=allow protocol=UDP localport=9087`.
What applications and services use port 9087?
Port 9087/UDP is used by the classic service. Specific uses depend on the software and configuration. Check our related tools section for more information.