All ports
Port1722/TCP
hks-lmPort
1722
Protocol
TCP
Category
Registered
Service
hks-lm
What is port 1722?
Port 1722/TCP is a Registered port, registered with IANA for specific applications. It is associated with the hks-lm service.
HKS License Manager
Useful commands
nmapnmap -p 1722 -sV example.comnetcatnc -zv example.com 1722curlcurl -v http://example.com:1722/telnettelnet example.com 1722bash(echo > /dev/tcp/example.com/1722) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1722/tcpDeny
sudo ufw deny 1722/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1722 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1722 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1722/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1722" dir=in action=allow protocol=TCP localport=1722Security 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- Outdated versions with vulnerabilities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 1722/TCP?
Port 1722/TCP is associated with the hks-lm service. HKS License Manager
Is it safe to expose port 1722 to the Internet?
It depends on the service and configuration. Port 1722 (hks-lm) 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 1722 is open?
You can use nmap: `nmap -p 1722 -sV example.com`, netcat: `nc -zv example.com 1722`, or the bash command: `(echo > /dev/tcp/example.com/1722) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1722 on my firewall?
On Linux with UFW: `sudo ufw allow 1722/tcp` (open) or `sudo ufw deny 1722/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1722 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1722" dir=in action=allow protocol=TCP localport=1722`.
What applications and services use port 1722?
Port 1722/TCP is used by the hks-lm service. Specific uses depend on the software and configuration. Check our related tools section for more information.