All ports
Port4343/UDP
unicallPort
4343
Protocol
UDP
Category
Registered
Service
unicall
What is port 4343?
Port 4343/UDP is a Registered port, registered with IANA for specific applications. It is associated with the unicall service.
UNICALL
Useful commands
nmapnmap -p 4343 -sV example.comnetcatnc -zv example.com 4343curlcurl -v http://example.com:4343/telnettelnet example.com 4343bash(echo > /dev/udp/example.com/4343) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4343/udpDeny
sudo ufw deny 4343/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4343 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4343 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4343/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4343" dir=in action=allow protocol=UDP localport=4343Security 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- Outdated versions with vulnerabilities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 4343/UDP?
Port 4343/UDP is associated with the unicall service. UNICALL
Is it safe to expose port 4343 to the Internet?
It depends on the service and configuration. Port 4343 (unicall) 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 4343 is open?
You can use nmap: `nmap -p 4343 -sV example.com`, netcat: `nc -zv example.com 4343`, or the bash command: `(echo > /dev/udp/example.com/4343) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4343 on my firewall?
On Linux with UFW: `sudo ufw allow 4343/udp` (open) or `sudo ufw deny 4343/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4343 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4343" dir=in action=allow protocol=UDP localport=4343`.
What applications and services use port 4343?
Port 4343/UDP is used by the unicall service. Specific uses depend on the software and configuration. Check our related tools section for more information.