All ports
Port586/TCP
password-chgPort
586
Protocol
TCP
Category
Well-Known
Service
password-chg
What is port 586?
Port 586/TCP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the password-chg service.
Password Change
Useful commands
nmapnmap -p 586 -sV example.comnetcatnc -zv example.com 586curlcurl -v http://example.com:586/telnettelnet example.com 586bash(echo > /dev/tcp/example.com/586) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 586/tcpDeny
sudo ufw deny 586/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 586 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 586 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=586/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 586" dir=in action=allow protocol=TCP localport=586Security 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- Outdated versions with vulnerabilities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 586/TCP?
Port 586/TCP is associated with the password-chg service. Password Change
Is it safe to expose port 586 to the Internet?
It depends on the service and configuration. Port 586 (password-chg) 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 586 is open?
You can use nmap: `nmap -p 586 -sV example.com`, netcat: `nc -zv example.com 586`, or the bash command: `(echo > /dev/tcp/example.com/586) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 586 on my firewall?
On Linux with UFW: `sudo ufw allow 586/tcp` (open) or `sudo ufw deny 586/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 586 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 586" dir=in action=allow protocol=TCP localport=586`.
What applications and services use port 586?
Port 586/TCP is used by the password-chg service. Specific uses depend on the software and configuration. Check our related tools section for more information.