All ports
Port20167/UDP
tolfabPort
20167
Protocol
UDP
Category
Registered
Service
tolfab
What is port 20167?
Port 20167/UDP is a Registered port, registered with IANA for specific applications. It is associated with the tolfab service.
TOLfab Data Change
Useful commands
nmapnmap -p 20167 -sV example.comnetcatnc -zv example.com 20167curlcurl -v http://example.com:20167/telnettelnet example.com 20167bash(echo > /dev/udp/example.com/20167) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 20167/udpDeny
sudo ufw deny 20167/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 20167 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 20167 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=20167/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 20167" dir=in action=allow protocol=UDP localport=20167Security 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- Outdated versions with vulnerabilities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 20167/UDP?
Port 20167/UDP is associated with the tolfab service. TOLfab Data Change
Is it safe to expose port 20167 to the Internet?
It depends on the service and configuration. Port 20167 (tolfab) 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 20167 is open?
You can use nmap: `nmap -p 20167 -sV example.com`, netcat: `nc -zv example.com 20167`, or the bash command: `(echo > /dev/udp/example.com/20167) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 20167 on my firewall?
On Linux with UFW: `sudo ufw allow 20167/udp` (open) or `sudo ufw deny 20167/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 20167 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 20167" dir=in action=allow protocol=UDP localport=20167`.
What applications and services use port 20167?
Port 20167/UDP is used by the tolfab service. Specific uses depend on the software and configuration. Check our related tools section for more information.