All ports
Port218/UDP
mppPort
218
Protocol
UDP
Category
Well-Known
Service
mpp
What is port 218?
Port 218/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the mpp service.
Netix Message Posting Protocol
Useful commands
nmapnmap -p 218 -sV example.comnetcatnc -zv example.com 218curlcurl -v http://example.com:218/telnettelnet example.com 218bash(echo > /dev/udp/example.com/218) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 218/udpDeny
sudo ufw deny 218/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 218 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 218 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=218/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 218" dir=in action=allow protocol=UDP localport=218Security 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- Outdated versions with vulnerabilities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 218/UDP?
Port 218/UDP is associated with the mpp service. Netix Message Posting Protocol
Is it safe to expose port 218 to the Internet?
It depends on the service and configuration. Port 218 (mpp) 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 218 is open?
You can use nmap: `nmap -p 218 -sV example.com`, netcat: `nc -zv example.com 218`, or the bash command: `(echo > /dev/udp/example.com/218) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 218 on my firewall?
On Linux with UFW: `sudo ufw allow 218/udp` (open) or `sudo ufw deny 218/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 218 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 218" dir=in action=allow protocol=UDP localport=218`.
What applications and services use port 218?
Port 218/UDP is used by the mpp service. Specific uses depend on the software and configuration. Check our related tools section for more information.