All ports
Port111/UDP
sunrpcPort
111
Protocol
UDP
Category
Well-Known
Service
sunrpc
What is port 111?
Port 111/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the sunrpc service.
SUN Remote Procedure Call
Useful commands
nmapnmap -p 111 -sV example.comnetcatnc -zv example.com 111curlcurl -v http://example.com:111/telnettelnet example.com 111bash(echo > /dev/udp/example.com/111) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 111/udpDeny
sudo ufw deny 111/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 111 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 111 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=111/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 111" dir=in action=allow protocol=UDP localport=111Security 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- Outdated versions with vulnerabilities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 111/UDP?
Port 111/UDP is associated with the sunrpc service. SUN Remote Procedure Call
Is it safe to expose port 111 to the Internet?
It depends on the service and configuration. Port 111 (sunrpc) 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 111 is open?
You can use nmap: `nmap -p 111 -sV example.com`, netcat: `nc -zv example.com 111`, or the bash command: `(echo > /dev/udp/example.com/111) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 111 on my firewall?
On Linux with UFW: `sudo ufw allow 111/udp` (open) or `sudo ufw deny 111/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 111 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 111" dir=in action=allow protocol=UDP localport=111`.
What applications and services use port 111?
Port 111/UDP is used by the sunrpc service. Specific uses depend on the software and configuration. Check our related tools section for more information.