26 lines
883 B
Markdown
26 lines
883 B
Markdown
|
## AWS EC2 - Elastic Network Interfaces
|
||
|
|
|
||
|
|
### Requirements
|
||
|
|
|
||
|
|
* An EC2 instance with network interface
|
||
|
|
|
||
|
|
### Objectives
|
||
|
|
|
||
|
|
A. Create a network interface and attach it to the EC2 instance that already has one network interface
|
||
|
|
B. Explain why would anyone use two network interfaces
|
||
|
|
|
||
|
|
### Solution
|
||
|
|
|
||
|
|
A.
|
||
|
|
1. Go to EC2 service
|
||
|
|
2. Click on "Network Interfaces" under "Network & Security"
|
||
|
|
3. Click on "Create network interface"
|
||
|
|
4. Provide a description
|
||
|
|
5. Choose a subnet (one that is in the AZ as the instance)
|
||
|
|
6. Optionally attach a security group and click on "Create network interface"
|
||
|
|
7. Click on "Actions" -> "Attach" and choose the instance to attach it to
|
||
|
|
8. If you go now to "Instances" page you'll see your instance has two network interfaces
|
||
|
|
|
||
|
|
B.
|
||
|
|
1. You can move the second network interface between instances. This allows us to create kind of a failover mechanism between the instances.
|