All ports
Port2018/UDP
rellpackPort
2018
Protocol
UDP
Category
Registered
Service
rellpack
What is port 2018?
Port 2018/UDP is a Registered port, registered with IANA for specific applications. It is associated with the rellpack service.
Useful commands
nmapnmap -p 2018 -sV example.comnetcatnc -zv example.com 2018curlcurl -v http://example.com:2018/telnettelnet example.com 2018bash(echo > /dev/udp/example.com/2018) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2018/udpDeny
sudo ufw deny 2018/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 2018 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 2018 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2018/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2018" dir=in action=allow protocol=UDP localport=2018Security 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- Outdated versions with vulnerabilities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 2018/UDP?
Port 2018/UDP is associated with the rellpack service. No detailed description is available in the IANA registry.
Is it safe to expose port 2018 to the Internet?
It depends on the service and configuration. Port 2018 (rellpack) 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 2018 is open?
You can use nmap: `nmap -p 2018 -sV example.com`, netcat: `nc -zv example.com 2018`, or the bash command: `(echo > /dev/udp/example.com/2018) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2018 on my firewall?
On Linux with UFW: `sudo ufw allow 2018/udp` (open) or `sudo ufw deny 2018/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 2018 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2018" dir=in action=allow protocol=UDP localport=2018`.
What applications and services use port 2018?
Port 2018/UDP is used by the rellpack service. Specific uses depend on the software and configuration. Check our related tools section for more information.