All ports
Port5161/TCP
snmpsshPort
5161
Protocol
TCP
Category
Registered
Service
snmpssh
What is port 5161?
Port 5161/TCP is a Registered port, registered with IANA for specific applications. It is associated with the snmpssh service.
SNMP over SSH Transport Model
Useful commands
nmapnmap -p 5161 -sV example.comnetcatnc -zv example.com 5161curlcurl -v http://example.com:5161/telnettelnet example.com 5161bash(echo > /dev/tcp/example.com/5161) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5161/tcpDeny
sudo ufw deny 5161/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 5161 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 5161 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5161/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5161" dir=in action=allow protocol=TCP localport=5161Security Risks
- Unauthorized remote access to the server
- Brute force attacks against SSH credentials
- Exposure of private keys or misconfigurations
- Outdated versions with known vulnerabilities
Frequently Asked Questions
What service runs on port 5161/TCP?
Port 5161/TCP is associated with the snmpssh service. SNMP over SSH Transport Model
Is it safe to expose port 5161 to the Internet?
It depends on the service and configuration. Port 5161 (snmpssh) 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 5161 is open?
You can use nmap: `nmap -p 5161 -sV example.com`, netcat: `nc -zv example.com 5161`, or the bash command: `(echo > /dev/tcp/example.com/5161) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5161 on my firewall?
On Linux with UFW: `sudo ufw allow 5161/tcp` (open) or `sudo ufw deny 5161/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 5161 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5161" dir=in action=allow protocol=TCP localport=5161`.
What applications and services use port 5161?
Port 5161/TCP is used by the snmpssh service. Specific uses depend on the software and configuration. Check our related tools section for more information.