Update the virtual network

The user logs into the Azure portal to create a new subnet within an existing virtual network. They navigate to virtual networks and create a new virtual network named "guided-project-vnet." Within this virtual network, they add a subnet called "ftpSubnet" for SFTP traffic. Next, they create a Network Security Group (NSG) named "ftpNSG" using the "guided-project-rg" resource group. An inbound security rule is then configured within the NSG to allow inbound traffic on port 22 using TCP, named "ftpInbound." Finally, the user associates the "ftpNSG" with the "ftpSubnet" by selecting the subnet and updating its Network security group field. This process prepares the network for a Linux VM to handle incoming FTP traffic.