All ports
Port4154/UDP
atlinksPort
4154
Protocol
UDP
Category
Registered
Service
atlinks
What is port 4154?
Port 4154/UDP is a Registered port, registered with IANA for specific applications. It is associated with the atlinks service.
atlinks device discovery
Useful commands
nmapnmap -p 4154 -sV example.comnetcatnc -zv example.com 4154curlcurl -v http://example.com:4154/telnettelnet example.com 4154bash(echo > /dev/udp/example.com/4154) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4154/udpDeny
sudo ufw deny 4154/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4154 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4154 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4154/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4154" dir=in action=allow protocol=UDP localport=4154Security 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- Outdated versions with vulnerabilities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 4154/UDP?
Port 4154/UDP is associated with the atlinks service. atlinks device discovery
Is it safe to expose port 4154 to the Internet?
It depends on the service and configuration. Port 4154 (atlinks) 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 4154 is open?
You can use nmap: `nmap -p 4154 -sV example.com`, netcat: `nc -zv example.com 4154`, or the bash command: `(echo > /dev/udp/example.com/4154) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4154 on my firewall?
On Linux with UFW: `sudo ufw allow 4154/udp` (open) or `sudo ufw deny 4154/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4154 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4154" dir=in action=allow protocol=UDP localport=4154`.
What applications and services use port 4154?
Port 4154/UDP is used by the atlinks service. Specific uses depend on the software and configuration. Check our related tools section for more information.