All ports
Port266/TCP
sstPort
266
Protocol
TCP
Category
Well-Known
Service
sst
What is port 266?
Port 266/TCP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the sst service.
SCSI on ST
Useful commands
nmapnmap -p 266 -sV example.comnetcatnc -zv example.com 266curlcurl -v http://example.com:266/telnettelnet example.com 266bash(echo > /dev/tcp/example.com/266) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 266/tcpDeny
sudo ufw deny 266/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 266 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 266 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=266/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 266" dir=in action=allow protocol=TCP localport=266Security 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- Outdated versions with vulnerabilities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 266/TCP?
Port 266/TCP is associated with the sst service. SCSI on ST
Is it safe to expose port 266 to the Internet?
It depends on the service and configuration. Port 266 (sst) 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 266 is open?
You can use nmap: `nmap -p 266 -sV example.com`, netcat: `nc -zv example.com 266`, or the bash command: `(echo > /dev/tcp/example.com/266) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 266 on my firewall?
On Linux with UFW: `sudo ufw allow 266/tcp` (open) or `sudo ufw deny 266/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 266 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 266" dir=in action=allow protocol=TCP localport=266`.
What applications and services use port 266?
Port 266/TCP is used by the sst service. Specific uses depend on the software and configuration. Check our related tools section for more information.