Difference between revisions of "OPS345 Lab 1"
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= AWS cost monitoring = | = AWS cost monitoring = | ||
| − | * | + | * You are responsible for your AWS usage. Normally using resources from AWS costs money. In an AWS Educate Learner Lab you get a 100$ credit which will be more than enough to cover all your resources until the end of the course. |
| − | * | + | ** Take this opportunity during the course to learn what costs how much money, and make sure you don't use up your 100$ until you are done all your work in the course. The skills of managing cloud costs are very valuable. |
| − | * | + | ** Both in the Learner Lab and the real AWS figuring out what the money was spent on is surprisingly difficult after it's already spent. So pay attention whenever you see a note about the cost of anything. |
| + | ** You cannot use AWS Budgets in your AWS Learning Lab. | ||
| + | ** You could try to figure out how to use the Amazon CloudWatch billing alarms | ||
* Always keep cost in the back of your mind when doing /anything/ on AWS | * Always keep cost in the back of your mind when doing /anything/ on AWS | ||
Revision as of 18:18, 14 September 2021
Contents
THIS PAGE IS A DRAFT, NOT A REAL COURSE PAGE
The current schedule for OPS345 is here: OPS335_Weekly_Schedule
AWS Console
Log in here: https://awsacademy.instructure.com
Click "Courses" > "AWS Academy Learner Lab - Foundation Services" > "Modules" > "Learner Lab - Foundational Services"
Click "Start Lab". The first time this will take a few minutes. This will spin up all your EC2 instances which automatically shut down 4 hours after you start the lab. But your data will not be lost. Your VMs will persist until the end of the course.
AWS cost monitoring
- You are responsible for your AWS usage. Normally using resources from AWS costs money. In an AWS Educate Learner Lab you get a 100$ credit which will be more than enough to cover all your resources until the end of the course.
- Take this opportunity during the course to learn what costs how much money, and make sure you don't use up your 100$ until you are done all your work in the course. The skills of managing cloud costs are very valuable.
- Both in the Learner Lab and the real AWS figuring out what the money was spent on is surprisingly difficult after it's already spent. So pay attention whenever you see a note about the cost of anything.
- You cannot use AWS Budgets in your AWS Learning Lab.
- You could try to figure out how to use the Amazon CloudWatch billing alarms
- Always keep cost in the back of your mind when doing /anything/ on AWS
Basic security on a public-facing server
- A good AWS password, not used anywhere else
- Remove default usernames
- Whenever possible: don't use passwords at all, use SSH keys for logging in
- root is never allowed to log in remotely
- How to use sudo and how to configure it
- ssh keys, same as OPS245
- How to organise your SSH keys and not lose them
AWS networking
- Default dynamic public IP
- Default static private network/IP
- Reserving a static public IP under "Elastic IPs", cost of doing that
First AWS VM
- Deploy a pre-built SuSE VM ("Instance") suse-sles-15-sp2-v20201211-hvm-ssd-x86_64
- Instance type t2.micro - sort of almost free
- Differences between SuSE and CentOS
- Explore the VM:
- connect with user ec2-user, ssh key
- no yum, use zypper
- systemctl
- passwd, shadow, group files
- netstat -atnup
- Create senecaid-admin user, no password, add to wheel group, modify /etc/sudoers
- Confirm can log in as senecaid-user and successfully sudo su
- Delete ec2-user
