All ports
Port774/UDP
acmaint_dbdPort
774
Protocol
UDP
Category
Well-Known
Service
acmaint_dbd
What is port 774?
Port 774/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the acmaint_dbd service.
Useful commands
nmapnmap -p 774 -sV example.comnetcatnc -zv example.com 774curlcurl -v http://example.com:774/telnettelnet example.com 774bash(echo > /dev/udp/example.com/774) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 774/udpDeny
sudo ufw deny 774/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 774 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 774 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=774/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 774" dir=in action=allow protocol=UDP 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- Outdated versions with vulnerabilities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/UDP?
Port 774/UDP is associated with the acmaint_dbd 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 (acmaint_dbd) 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/udp/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/udp` (open) or `sudo ufw deny 774/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 774 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 774" dir=in action=allow protocol=UDP localport=774`.
What applications and services use port 774?
Port 774/UDP is used by the acmaint_dbd service. Specific uses depend on the software and configuration. Check our related tools section for more information.