All ports
Port764/UDP
omservPort
764
Protocol
UDP
Category
Well-Known
Service
omserv
What is port 764?
Port 764/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the omserv service.
Useful commands
nmapnmap -p 764 -sV example.comnetcatnc -zv example.com 764curlcurl -v http://example.com:764/telnettelnet example.com 764bash(echo > /dev/udp/example.com/764) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 764/udpDeny
sudo ufw deny 764/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 764 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 764 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=764/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 764" dir=in action=allow protocol=UDP localport=764Security 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- Outdated versions with vulnerabilities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 764/UDP?
Port 764/UDP is associated with the omserv service. No detailed description is available in the IANA registry.
Is it safe to expose port 764 to the Internet?
It depends on the service and configuration. Port 764 (omserv) 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 764 is open?
You can use nmap: `nmap -p 764 -sV example.com`, netcat: `nc -zv example.com 764`, or the bash command: `(echo > /dev/udp/example.com/764) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 764 on my firewall?
On Linux with UFW: `sudo ufw allow 764/udp` (open) or `sudo ufw deny 764/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 764 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 764" dir=in action=allow protocol=UDP localport=764`.
What applications and services use port 764?
Port 764/UDP is used by the omserv service. Specific uses depend on the software and configuration. Check our related tools section for more information.