All ports
Port4753/TCP
simonPort
4753
Protocol
TCP
Category
Registered
Service
simon
What is port 4753?
Port 4753/TCP is a Registered port, registered with IANA for specific applications. It is associated with the simon service.
Simple Invocation of Methods Over Network (SIMON)
Useful commands
nmapnmap -p 4753 -sV example.comnetcatnc -zv example.com 4753curlcurl -v http://example.com:4753/telnettelnet example.com 4753bash(echo > /dev/tcp/example.com/4753) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4753/tcpDeny
sudo ufw deny 4753/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 4753 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 4753 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4753/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4753" dir=in action=allow protocol=TCP localport=4753Security 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- Outdated versions with vulnerabilities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 4753/TCP?
Port 4753/TCP is associated with the simon service. Simple Invocation of Methods Over Network (SIMON)
Is it safe to expose port 4753 to the Internet?
It depends on the service and configuration. Port 4753 (simon) 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 4753 is open?
You can use nmap: `nmap -p 4753 -sV example.com`, netcat: `nc -zv example.com 4753`, or the bash command: `(echo > /dev/tcp/example.com/4753) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4753 on my firewall?
On Linux with UFW: `sudo ufw allow 4753/tcp` (open) or `sudo ufw deny 4753/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 4753 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4753" dir=in action=allow protocol=TCP localport=4753`.
What applications and services use port 4753?
Port 4753/TCP is used by the simon service. Specific uses depend on the software and configuration. Check our related tools section for more information.