All ports
Port4661/TCP
kar2ouchePort
4661
Protocol
TCP
Category
Registered
Service
kar2ouche
What is port 4661?
Port 4661/TCP is a Registered port, registered with IANA for specific applications. It is associated with the kar2ouche service.
Kar2ouche Peer location service
Useful commands
nmapnmap -p 4661 -sV example.comnetcatnc -zv example.com 4661curlcurl -v http://example.com:4661/telnettelnet example.com 4661bash(echo > /dev/tcp/example.com/4661) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4661/tcpDeny
sudo ufw deny 4661/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 4661 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 4661 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4661/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4661" dir=in action=allow protocol=TCP localport=4661Security 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- Outdated versions with vulnerabilities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 4661/TCP?
Port 4661/TCP is associated with the kar2ouche service. Kar2ouche Peer location service
Is it safe to expose port 4661 to the Internet?
It depends on the service and configuration. Port 4661 (kar2ouche) 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 4661 is open?
You can use nmap: `nmap -p 4661 -sV example.com`, netcat: `nc -zv example.com 4661`, or the bash command: `(echo > /dev/tcp/example.com/4661) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4661 on my firewall?
On Linux with UFW: `sudo ufw allow 4661/tcp` (open) or `sudo ufw deny 4661/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 4661 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4661" dir=in action=allow protocol=TCP localport=4661`.
What applications and services use port 4661?
Port 4661/TCP is used by the kar2ouche service. Specific uses depend on the software and configuration. Check our related tools section for more information.