All ports
Port765/UDP
websterPort
765
Protocol
UDP
Category
Well-Known
Service
webster
What is port 765?
Port 765/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the webster service.
Useful commands
nmapnmap -p 765 -sV example.comnetcatnc -zv example.com 765curlcurl -v http://example.com:765/telnettelnet example.com 765bash(echo > /dev/udp/example.com/765) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 765/udpDeny
sudo ufw deny 765/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 765 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 765 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=765/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 765" dir=in action=allow protocol=UDP localport=765Security 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- Outdated versions with vulnerabilities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 765/UDP?
Port 765/UDP is associated with the webster service. No detailed description is available in the IANA registry.
Is it safe to expose port 765 to the Internet?
It depends on the service and configuration. Port 765 (webster) 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 765 is open?
You can use nmap: `nmap -p 765 -sV example.com`, netcat: `nc -zv example.com 765`, or the bash command: `(echo > /dev/udp/example.com/765) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 765 on my firewall?
On Linux with UFW: `sudo ufw allow 765/udp` (open) or `sudo ufw deny 765/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 765 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 765" dir=in action=allow protocol=UDP localport=765`.
What applications and services use port 765?
Port 765/UDP is used by the webster service. Specific uses depend on the software and configuration. Check our related tools section for more information.