All ports
Port9081/UDP
cisco-aqosPort
9081
Protocol
UDP
Category
Registered
Service
cisco-aqos
What is port 9081?
Port 9081/UDP is a Registered port, registered with IANA for specific applications. It is associated with the cisco-aqos service.
Required for Adaptive Quality of Service
Useful commands
nmapnmap -p 9081 -sV example.comnetcatnc -zv example.com 9081curlcurl -v http://example.com:9081/telnettelnet example.com 9081bash(echo > /dev/udp/example.com/9081) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 9081/udpDeny
sudo ufw deny 9081/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 9081 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 9081 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=9081/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 9081" dir=in action=allow protocol=UDP localport=9081Security 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- Outdated versions with vulnerabilities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 9081/UDP?
Port 9081/UDP is associated with the cisco-aqos service. Required for Adaptive Quality of Service
Is it safe to expose port 9081 to the Internet?
It depends on the service and configuration. Port 9081 (cisco-aqos) 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 9081 is open?
You can use nmap: `nmap -p 9081 -sV example.com`, netcat: `nc -zv example.com 9081`, or the bash command: `(echo > /dev/udp/example.com/9081) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 9081 on my firewall?
On Linux with UFW: `sudo ufw allow 9081/udp` (open) or `sudo ufw deny 9081/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 9081 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 9081" dir=in action=allow protocol=UDP localport=9081`.
What applications and services use port 9081?
Port 9081/UDP is used by the cisco-aqos service. Specific uses depend on the software and configuration. Check our related tools section for more information.