All ports
Port664/TCP
oob-ws-httpsPort
664
Protocol
TCP
Category
Well-Known
Service
oob-ws-https
What is port 664?
Port 664/TCP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the oob-ws-https service.
DMTF out-of-band secure web services management protocol
Useful commands
nmapnmap -p 664 -sV example.comnetcatnc -zv example.com 664curlcurl -v http://example.com:664/telnettelnet example.com 664bash(echo > /dev/tcp/example.com/664) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 664/tcpDeny
sudo ufw deny 664/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 664 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 664 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=664/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 664" dir=in action=allow protocol=TCP localport=664Security Risks
- Incorrect TLS/SSL configuration
- Man-in-the-Middle attacks if certificate is invalid
- Protocol implementation vulnerabilities
- Exposure of web services with weak authentication
Frequently Asked Questions
What service runs on port 664/TCP?
Port 664/TCP is associated with the oob-ws-https service. DMTF out-of-band secure web services management protocol
Is it safe to expose port 664 to the Internet?
It depends on the service and configuration. Port 664 (oob-ws-https) is a Well-Known 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 664 is open?
You can use nmap: `nmap -p 664 -sV example.com`, netcat: `nc -zv example.com 664`, or the bash command: `(echo > /dev/tcp/example.com/664) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 664 on my firewall?
On Linux with UFW: `sudo ufw allow 664/tcp` (open) or `sudo ufw deny 664/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 664 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 664" dir=in action=allow protocol=TCP localport=664`.
What applications and services use port 664?
Port 664/TCP is used by the oob-ws-https service. Specific uses depend on the software and configuration. Check our related tools section for more information.