All ports
Port998/UDP
puparpPort
998
Protocol
UDP
Category
Well-Known
Service
puparp
What is port 998?
Port 998/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the puparp service.
Useful commands
nmapnmap -p 998 -sV example.comnetcatnc -zv example.com 998curlcurl -v http://example.com:998/telnettelnet example.com 998bash(echo > /dev/udp/example.com/998) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 998/udpDeny
sudo ufw deny 998/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 998 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 998 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=998/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 998" dir=in action=allow protocol=UDP localport=998Security 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- Outdated versions with vulnerabilities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 998/UDP?
Port 998/UDP is associated with the puparp service. No detailed description is available in the IANA registry.
Is it safe to expose port 998 to the Internet?
It depends on the service and configuration. Port 998 (puparp) 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 998 is open?
You can use nmap: `nmap -p 998 -sV example.com`, netcat: `nc -zv example.com 998`, or the bash command: `(echo > /dev/udp/example.com/998) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 998 on my firewall?
On Linux with UFW: `sudo ufw allow 998/udp` (open) or `sudo ufw deny 998/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 998 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 998" dir=in action=allow protocol=UDP localport=998`.
What applications and services use port 998?
Port 998/UDP is used by the puparp service. Specific uses depend on the software and configuration. Check our related tools section for more information.