All ports
Port5639/TCP
icsPort
5639
Protocol
TCP
Category
Registered
Service
ics
What is port 5639?
Port 5639/TCP is a Registered port, registered with IANA for specific applications. It is associated with the ics service.
Symantec Integrity Checking Service
Useful commands
nmapnmap -p 5639 -sV example.comnetcatnc -zv example.com 5639curlcurl -v http://example.com:5639/telnettelnet example.com 5639bash(echo > /dev/tcp/example.com/5639) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5639/tcpDeny
sudo ufw deny 5639/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 5639 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 5639 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5639/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5639" dir=in action=allow protocol=TCP localport=5639Security 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- Outdated versions with vulnerabilities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 5639/TCP?
Port 5639/TCP is associated with the ics service. Symantec Integrity Checking Service
Is it safe to expose port 5639 to the Internet?
It depends on the service and configuration. Port 5639 (ics) 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 5639 is open?
You can use nmap: `nmap -p 5639 -sV example.com`, netcat: `nc -zv example.com 5639`, or the bash command: `(echo > /dev/tcp/example.com/5639) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5639 on my firewall?
On Linux with UFW: `sudo ufw allow 5639/tcp` (open) or `sudo ufw deny 5639/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 5639 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5639" dir=in action=allow protocol=TCP localport=5639`.
What applications and services use port 5639?
Port 5639/TCP is used by the ics service. Specific uses depend on the software and configuration. Check our related tools section for more information.