Checking network connections to VMs involves several steps to ensure that the VM is reachable and the network configurations are correct.

1. Verify VM status

Ensure that the VM is in running state. You can check this using the Crusoe Cloud console or the command-line.

2. Check Network Configuration

Ensure the VM has the correct network configuration (IP address, subnet, firewall rules, etc.).

3. Ping the VM

Use the ping command to check if the VM is reachable from your local machine or another machine in the same network. Remember, you need to enable icmp firewalls as Crusoe does not enable icmp protocol by default.

ping <VM_IP_Address>

4. Use Network Diagnostic Tools

• Traceroute: Use traceroute to trace the path packets take to reach the VM.

traceroute <VM_IP_Address>

• Netstat: Use netstat on the VM to check active connections and listening ports

netstat -tuln

5. Check Open Ports

Use tools like telnet or nc (netcat) to check if specific ports are open on the VM.

• Telnet

telnet <VM_IP_Address> <Port>

• Netcat

nc -zv <VM_IP_Address> <Port>