What is the first step to check if a Linux virtual machine has network connectivity issues?

To determine if a Linux virtual machine is experiencing network connectivity issues, the initial step should be to check that the virtual network adapter is present and enabled. This is critical because if the virtual network adapter is missing or disabled, the virtual machine will not be able to communicate with other devices on the network, rendering any further network testing ineffective.

Ensuring the presence and activation of the virtual network adapter establishes a foundational layer for network connectivity. If there’s no network adapter or it’s not enabled, the VM cannot send or receive packets at all, which is a more fundamental problem than configuration or connectivity to external sources.

Once this step is validated, other troubleshooting methods may be employed, such as verifying VMware Tools or testing connection with pings, but they will only be relevant if the adapter itself is functioning properly. As a result, addressing the network adapter first is essential for resolving connectivity issues effectively.