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[AWS] SSH into EC2 instanse

AWSssh INTO EC2
2023-09-14 09:00:46 时间

When Launch a new EC2 instance, in the final step, you can create a new private key pair and download it as pem file.

For example, I have one call `mynewkeypair.pem`.

 

Secrity group:

When creating security group, you need to make sure, you have allow `Anywhere` for `HTTP` & `SSH` (just for testing, not for production)

 

1. Change premission for pem file:

chmod 400 mynewkeypair.pem

 

2. SSH into EC2:

ssh ec2-user@<public_ipv4_address> -i mynewkeypair.pem

You can find <public_ipv4_address> in EC2 instanse information.

 

3. Type `yes` to continue

 

4. When successfully login, you will see:

 

Now, let's say, we want to turn our linux server as web hosting server.

1. Switch to root user

sudo su

 

2. Check any packages need to be udpated

yum update -y

 

3. Install Apache server:

yum install httpd -y

 

4. Start the server:

systemctl start httpd

This start the server manually, if we want to start the server automaticlly when the server bootstrap, we can do:

systemctl enable httpd

 

5. Verify:

systemctl status httpd

You can see:

Active: active (running) since Mon 2021-03-22 08:43:11 UTC; 1min 59s ago

 

6. Add new webpage:

cd /var/www/html
nano index.html

Add simple html:

<html><body><h1>Hello Cloud Guru!!</h1></body></html>

Save the file:

Ctrl + X
Y
Enter

 

7. See the page:

Copy the Public IP address and paste into browser,  you should see the hello message

 

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