Unable to connect to AWS EC2 instance public IPv4 using http tcp/80

Scatt

8/13/24, 9:55 AM

Referring to an instructional book, I am setting up an EC2 instance on AWS using an IAM role.

However, when I try to access the URL using the EC2 instance's public IP address, I am unable to establish a connection.

URL: http://(public IPv4 address)/aws-sample

I followed these steps:

Configured IAM Roles
Created a Security Group
Created the EC2 Instance
My process for creating the EC2 instance:
1. Created a key pair
2. Entered user data
3. Started the instance

Here's the error message I encountered:

This site can't be reached. The IP address -.-.-.- took too long to respond. Try checking the connection.

I've already tried:

1.Checking the connection

If you have any insights or solutions, please share. Thank you.

[Environment:]

Windows 11
Apache 2.4.56
Tomcat 17.0.8.7.1
Eclipse 2022-09
Platform: Likely Amazon Linux
Platform Details: Linux/UNIX

I've already tried:

Checking the connection - But it was no use.
I looked at this article(but the problem seems still remain) Checking my setting of "Security Group" and "Port connection"

Should an AWS EC2 instance connect using only IPv4 Public IP? https://stackoverflow.com/questions/50143943/should-an-aws-ec2-instance-connect-using-only-ipv4-public-ip

0 + 1

tomcat

eclipse

apache-2.4

aws-ec2

Hack Saw

8/22/24, 1:05 AM

If you have the nmap utility aim that at your ip address: nmap <your public ip address>. It'll scan a bunch of system ports and tell you what it sees open.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Unable to connect to AWS EC2 instance public IPv4 using http tcp/80

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