All ports
Port3205/TCP
isnsPort
3205
Protocol
TCP
Category
Registered
Service
isns
What is port 3205?
Port 3205/TCP is a Registered port, registered with IANA for specific applications. It is associated with the isns service.
iSNS Server Port
Useful commands
nmapnmap -p 3205 -sV example.comnetcatnc -zv example.com 3205curlcurl -v http://example.com:3205/telnettelnet example.com 3205bash(echo > /dev/tcp/example.com/3205) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3205/tcpDeny
sudo ufw deny 3205/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3205 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3205 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3205/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3205" dir=in action=allow protocol=TCP localport=3205Security 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- Outdated versions with vulnerabilities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 3205/TCP?
Port 3205/TCP is associated with the isns service. iSNS Server Port
Is it safe to expose port 3205 to the Internet?
It depends on the service and configuration. Port 3205 (isns) 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 3205 is open?
You can use nmap: `nmap -p 3205 -sV example.com`, netcat: `nc -zv example.com 3205`, or the bash command: `(echo > /dev/tcp/example.com/3205) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3205 on my firewall?
On Linux with UFW: `sudo ufw allow 3205/tcp` (open) or `sudo ufw deny 3205/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3205 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3205" dir=in action=allow protocol=TCP localport=3205`.
What applications and services use port 3205?
Port 3205/TCP is used by the isns service. Specific uses depend on the software and configuration. Check our related tools section for more information.