All ports
Port1377/UDP
cichlidPort
1377
Protocol
UDP
Category
Registered
Service
cichlid
What is port 1377?
Port 1377/UDP is a Registered port, registered with IANA for specific applications. It is associated with the cichlid service.
Cichlid License Manager
Useful commands
nmapnmap -p 1377 -sV example.comnetcatnc -zv example.com 1377curlcurl -v http://example.com:1377/telnettelnet example.com 1377bash(echo > /dev/udp/example.com/1377) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1377/udpDeny
sudo ufw deny 1377/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 1377 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 1377 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1377/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1377" dir=in action=allow protocol=UDP localport=1377Security 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- Outdated versions with vulnerabilities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 1377/UDP?
Port 1377/UDP is associated with the cichlid service. Cichlid License Manager
Is it safe to expose port 1377 to the Internet?
It depends on the service and configuration. Port 1377 (cichlid) 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 1377 is open?
You can use nmap: `nmap -p 1377 -sV example.com`, netcat: `nc -zv example.com 1377`, or the bash command: `(echo > /dev/udp/example.com/1377) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1377 on my firewall?
On Linux with UFW: `sudo ufw allow 1377/udp` (open) or `sudo ufw deny 1377/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 1377 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1377" dir=in action=allow protocol=UDP localport=1377`.
What applications and services use port 1377?
Port 1377/UDP is used by the cichlid service. Specific uses depend on the software and configuration. Check our related tools section for more information.