site can't be reached

Question

In all the exercises I did for AWS Cloud Technical Essentials, none of the pages I tried to view using the public IP address worked. I did every solution I saw on YouTube and here on this website, but they didn't work.

I did the following:
1. Checked the sg to see if I set the http, ssh, https accessible anywhere.
2. I also connect to the shell, and installed https, checked the status and restarted the server. This one I was able to display something. It displayed "It works!". Every time I do these steps, the page always displays the same
3. I also tried to add ICMP in the security group. I was able to ping the IP address, but then, the page still displays "site can't be reached"
4. I also disabled my antivirus
5. I also checked my proxy settings, and follow the steps I read to clear them
6. I also added the IP address in the list of sites that are safe to browse in my chrome settings
7. I DID ALL THESE in both my Mac and Windows computers.

If I made a mistake or I missed something in the steps provided for the exercises, I don't believe that I did in all the exercises, especially the first few where the steps were still simple and easy

Any help will be greatly appreciated. Thanks.

kentrad · Accepted Answer

Make sure to choose Amazon Linux 2 instead of Amazon Linux 2023 when you launch the instance. In the console, Amazon Linux 2023 is now the default. You will need to terminate the existing instance and create a new one.

Riku_Kobayashi · Answer

What is the HTTP status code returned when connecting to EC2 and executing the following command?  
```
curl localhost -o /dev/null -w '%{http_code}
' -s
```
In case of 5XX error, there is most likely a problem with the web server configuration.

rePost-User-3867614 · Answer

To: kentrad

I pasted below my  user data. Thank you.

#!/bin/bash -ex
wget https://aws-tc-largeobjects.s3-us-west-2.amazonaws.com/DEV-AWS-MO-GCNv2/FlaskApp.zip
unzip FlaskApp.zip
cd FlaskApp/
yum -y install python3 mysql
pip3 install -r requirements.txt
amazon-linux-extras install epel
yum -y install stress
export PHOTOS_BUCKET=${SUB_PHOTOS_BUCKET}
export AWS_DEFAULT_REGION=
export DYNAMO_MODE=on
FLASK_APP=application.py /usr/local/bin/flask run --host=0.0.0.0 --port=80

rePost-User-3867614 · Answer

[ec2-user@ip- ~]$ sudo systemctl start httpd
Failed to start httpd.service: Unit httpd.service not found.

[ec2-user@ip- ~]$ sudo yum install httpd
Last metadata expiration check: 1 day, 3:24:20 ago on Thu Apr  6 16:11:44 2023.

ec2-user@ip- ~]$ sudo systemctl start httpd
[ec2-user@ip- ~]$ service httpd status
Redirecting to /bin/systemctl status httpd.service
● httpd.service - The Apache HTTP Server
     Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; preset: disabled)
     Active: active (running) since Fri 2023-04-07 19:37:10 UTC; 23s ago
       Docs: man:httpd.service(8)
   Main PID: 25460 (httpd)
     Status: "Total requests: 0; Idle/Busy workers 100/0;Requests/sec: 0; Bytes served/sec:   0 B/sec"
      Tasks: 177 (limit: 1112)
     Memory: 12.8M
        CPU: 77ms
     CGroup: /system.slice/httpd.service
             ├─25460 /usr/sbin/httpd -DFOREGROUND
             ├─25472 /usr/sbin/httpd -DFOREGROUND
             ├─25473 /usr/sbin/httpd -DFOREGROUND
             ├─25474 /usr/sbin/httpd -DFOREGROUND
             └─25475 /usr/sbin/httpd -DFOREGROUND

Apr 07 19:37:10 ip-.us-east-2.compute.internal systemd[1]: Starting httpd.service - The Apache HTTP Server...
Apr 07 19:37:10 ip-.us-east-2.compute.internal systemd[1]: Started httpd.service - The Apache HTTP Server.
Apr 07 19:37:10 ip-.us-east-2.compute.internal httpd[25460]: Server configured, listening on: port 80

###############################
When I entered my IP address in my browser, it displayed this:
It works!

BUT, that's not the output I was expecting. I think that "It works!" is a default message.

site can't be reached

Add your answer

Relevant content