All ports
Port774/TCP
rpasswdPort
774
Protocol
TCP
Category
Well-Known
Service
rpasswd
What is port 774?
Port 774/TCP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the rpasswd service.
Useful commands
nmapnmap -p 774 -sV example.comnetcatnc -zv example.com 774curlcurl -v http://example.com:774/telnettelnet example.com 774bash(echo > /dev/tcp/example.com/774) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 774/tcpDeny
sudo ufw deny 774/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 774 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 774 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=774/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 774" dir=in action=allow protocol=TCP localport=774Security 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- Outdated versions with vulnerabilities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 774/TCP?
Port 774/TCP is associated with the rpasswd service. No detailed description is available in the IANA registry.
Is it safe to expose port 774 to the Internet?
It depends on the service and configuration. Port 774 (rpasswd) 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 774 is open?
You can use nmap: `nmap -p 774 -sV example.com`, netcat: `nc -zv example.com 774`, or the bash command: `(echo > /dev/tcp/example.com/774) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 774 on my firewall?
On Linux with UFW: `sudo ufw allow 774/tcp` (open) or `sudo ufw deny 774/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 774 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 774" dir=in action=allow protocol=TCP localport=774`.
What applications and services use port 774?
Port 774/TCP is used by the rpasswd service. Specific uses depend on the software and configuration. Check our related tools section for more information.