89-Oracle OCI – VNICs, Private, Public IP addresses & DNS, DHCP options – Part 7

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In this session part 7, we will cover three topics:

1. How to manage the virtual network interface cards (VNICs) in a virtual cloud network (VCN).
2. How your instances are assigned private and public IP addresses, and the use of DNS within your cloud network.
3. How to manage the Dynamic Host Configuration Protocol (DHCP) options in a virtual cloud network (VCN).

The Journey started from the first station of networking to learn the basics of Oracle Cloud Infrastructure.

In the second station of our journey to learn Oracle Cloud Infrastructure (OCI). We will cover different gateways available in the VCN like:

• Network address translation (NAT Gateway),
• Service Gateway,
• Internet Gateway,
• Dynamic Routing Gateway (DRG),
• Local Peering Gateway (LPG), and
• Remote Peering Gateway (RPG).

When you will arrive at the third station of our journey, to learn OCI, you will get the basics of default components of VCN, including the below three-component comes by default with the Virtual Cloud Network on OCI.

• Default route table, with no route rules
• Default security list, with default security rules
• A default set of DHCP options, with default values

In the fourth station of our journey, we will cover the three different scenarios, public subnet, Private Subnet with a VPN, and Public and Private Subnets with a VPN.

In the fifth and sixth station of the journey to learn the basics of OC we have covered below areas:

1. Access controls
2. Security Rules
3. Network security groups
4. Security Lists
5. VCN Flow logs