= 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: httpshttp://awsacademywiki.instructurelittlesvr.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 ca/anythingwiki/ 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 = First AWS VM = * Create a new security group "ops345sg" with only the SSH port open. We'll look at security groups in more detail next week.* Instance == VM. AMI == VM disk image.* Lots of AMIs appear to be available, only Amazon Linux works with AWS Academy.* Use "Launch Instances" to deploy a pre-built "Amazon Linux 2 AMI (HVM), SSD Volume Type" VM. Not one of the other Amazon Linux AMIs.** Instance type t2.micro - sort of kind of almost free** Security group "ops345sg"** Create a new RSA key pair named ops345-first-key, save it as ops345-first-key.pem on your workstation under a new directory ~/keys/ssh/* Differences between Amazon Linux and CentOS** /etc/yum.repos.d/amzn2-core.repo** Not linked to RedHat/IBM support cycles and policies.* Explore the VM:** connect with user ec2-user, ssh key** Many packages not installed by default in CentOS /are/ installed by default in Amazon Linux.** yum install telnet** systemctl works the same way** Note iptables is not installed, we'll fix that in the next lab.** passwd, shadow, group files** netstat -atnup* Create yoursenecaid user, no password, create /etc/sudoers.d/10-ops345-users with these contents:<source>yoursenecaid ALL=(ALL) NOPASSWD:ALL</source>* Allow yourself to log in using an SSH key:<source># cd /home/ec2-user/# cp -r .ssh/ ~andrew# chown -R andrew.users ~andrew/.ssh/</source>* Confirm ssh in as yoursenecaid and successfully sudo su -* Delete ec2-user including the home directory. Use the userdel command.* Update hostname to "first.yoursenecaid.ops" and make sure it sticks: ** https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-hostname.html** Change the instance "Name" in the EC2 management console to "first"OPS345_Lab_1 This page has moved.]
