All ports
Port1919/TCP
can-dchPort
1919
Protocol
TCP
Category
Registered
Service
can-dch
What is port 1919?
Port 1919/TCP is a Registered port, registered with IANA for specific applications. It is associated with the can-dch service.
IBM Tivoli Directory Service - DCH
Useful commands
nmapnmap -p 1919 -sV example.comnetcatnc -zv example.com 1919curlcurl -v http://example.com:1919/telnettelnet example.com 1919bash(echo > /dev/tcp/example.com/1919) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1919/tcpDeny
sudo ufw deny 1919/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1919 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1919 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1919/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1919" dir=in action=allow protocol=TCP localport=1919Security 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- Outdated versions with vulnerabilities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 1919/TCP?
Port 1919/TCP is associated with the can-dch service. IBM Tivoli Directory Service - DCH
Is it safe to expose port 1919 to the Internet?
It depends on the service and configuration. Port 1919 (can-dch) 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 1919 is open?
You can use nmap: `nmap -p 1919 -sV example.com`, netcat: `nc -zv example.com 1919`, or the bash command: `(echo > /dev/tcp/example.com/1919) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1919 on my firewall?
On Linux with UFW: `sudo ufw allow 1919/tcp` (open) or `sudo ufw deny 1919/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1919 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1919" dir=in action=allow protocol=TCP localport=1919`.
What applications and services use port 1919?
Port 1919/TCP is used by the can-dch service. Specific uses depend on the software and configuration. Check our related tools section for more information.