All ports
Port3073/UDP
vcrpPort
3073
Protocol
UDP
Category
Registered
Service
vcrp
What is port 3073?
Port 3073/UDP is a Registered port, registered with IANA for specific applications. It is associated with the vcrp service.
Very simple chatroom prot
Useful commands
nmapnmap -p 3073 -sV example.comnetcatnc -zv example.com 3073curlcurl -v http://example.com:3073/telnettelnet example.com 3073bash(echo > /dev/udp/example.com/3073) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3073/udpDeny
sudo ufw deny 3073/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3073 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3073 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3073/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3073" dir=in action=allow protocol=UDP localport=3073Security 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- Outdated versions with vulnerabilities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 3073/UDP?
Port 3073/UDP is associated with the vcrp service. Very simple chatroom prot
Is it safe to expose port 3073 to the Internet?
It depends on the service and configuration. Port 3073 (vcrp) is a Registered 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 3073 is open?
You can use nmap: `nmap -p 3073 -sV example.com`, netcat: `nc -zv example.com 3073`, or the bash command: `(echo > /dev/udp/example.com/3073) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3073 on my firewall?
On Linux with UFW: `sudo ufw allow 3073/udp` (open) or `sudo ufw deny 3073/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3073 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3073" dir=in action=allow protocol=UDP localport=3073`.
What applications and services use port 3073?
Port 3073/UDP is used by the vcrp service. Specific uses depend on the software and configuration. Check our related tools section for more information.