All ports
Port2855/TCP
msrpPort
2855
Protocol
TCP
Category
Registered
Service
msrp
What is port 2855?
Port 2855/TCP is a Registered port, registered with IANA for specific applications. It is associated with the msrp service.
MSRP over TCP
Useful commands
nmapnmap -p 2855 -sV example.comnetcatnc -zv example.com 2855curlcurl -v http://example.com:2855/telnettelnet example.com 2855bash(echo > /dev/tcp/example.com/2855) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2855/tcpDeny
sudo ufw deny 2855/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 2855 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 2855 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2855/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2855" dir=in action=allow protocol=TCP localport=2855Security 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- Outdated versions with vulnerabilities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 2855/TCP?
Port 2855/TCP is associated with the msrp service. MSRP over TCP
Is it safe to expose port 2855 to the Internet?
It depends on the service and configuration. Port 2855 (msrp) 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 2855 is open?
You can use nmap: `nmap -p 2855 -sV example.com`, netcat: `nc -zv example.com 2855`, or the bash command: `(echo > /dev/tcp/example.com/2855) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2855 on my firewall?
On Linux with UFW: `sudo ufw allow 2855/tcp` (open) or `sudo ufw deny 2855/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 2855 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2855" dir=in action=allow protocol=TCP localport=2855`.
What applications and services use port 2855?
Port 2855/TCP is used by the msrp service. Specific uses depend on the software and configuration. Check our related tools section for more information.