All ports
Port2890/TCP
cspclmultiPort
2890
Protocol
TCP
Category
Registered
Service
cspclmulti
What is port 2890?
Port 2890/TCP is a Registered port, registered with IANA for specific applications. It is associated with the cspclmulti service.
CSPCLMULTI
Useful commands
nmapnmap -p 2890 -sV example.comnetcatnc -zv example.com 2890curlcurl -v http://example.com:2890/telnettelnet example.com 2890bash(echo > /dev/tcp/example.com/2890) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2890/tcpDeny
sudo ufw deny 2890/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 2890 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 2890 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2890/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2890" dir=in action=allow protocol=TCP localport=2890Security 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- Outdated versions with vulnerabilities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 2890/TCP?
Port 2890/TCP is associated with the cspclmulti service. CSPCLMULTI
Is it safe to expose port 2890 to the Internet?
It depends on the service and configuration. Port 2890 (cspclmulti) 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 2890 is open?
You can use nmap: `nmap -p 2890 -sV example.com`, netcat: `nc -zv example.com 2890`, or the bash command: `(echo > /dev/tcp/example.com/2890) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2890 on my firewall?
On Linux with UFW: `sudo ufw allow 2890/tcp` (open) or `sudo ufw deny 2890/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 2890 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2890" dir=in action=allow protocol=TCP localport=2890`.
What applications and services use port 2890?
Port 2890/TCP is used by the cspclmulti service. Specific uses depend on the software and configuration. Check our related tools section for more information.