Modul 4 : Jaringan

The discussion begins with an introduction to network services, covering the basics of computer networks, which are collections of interconnected computers and hardware that communicate and exchange information, similar to social interactions.

The concept of a virtual network is introduced, highlighting that it is a type of network that uses virtualization tools, allowing users to create networks without the need for physical hardware, making it easier and more cost-effective to learn and experiment with networking.

The AWS Virtual Private Cloud (VPC) service is explained, which provides users with a virtual network in the cloud, including components like routers, subnets, and gateways, allowing for comprehensive network configuration and control.

The components of an AWS VPC are detailed, including VPC networks, subnets, CIDR blocks, route tables, internet gateways, NAT gateways, security groups, and network ACLs, each serving specific roles in managing network traffic and security.

The differences between internet gateways and virtual private gateways are discussed, with internet gateways allowing traffic from the internet to the VPC and virtual private gateways enabling private connections, such as VPNs, for secure data transfer.

The role of firewalls in AWS is explained, focusing on network ACLs and security groups, which filter traffic at different levels (subnet vs. instance) to enhance security and control over network access.

The Domain Name System (DNS) is introduced, explaining its function in translating domain names into IP addresses, with a focus on how AWS Route 53 serves as a DNS service to connect user requests to the appropriate infrastructure.