How to access/ping a server located on AWS?

Question

With what address should a server located on AWS be accessed?

I\'ve created an AWS instance and installed a web server on it. However the server is not reachable via any

Answer 1

I have faced the similar issue while connecting from my local mac machine

Work around as below:

1. * Route table => add 0.0.0.0/0 and target to your Internet Gateway *

2. Under Network ACL add ad below

   2.1 for pings from your local machine ->

   All ICMP - IPv4 ICMP (1) ALL 0.0.0.0/0 ALLOW

   2.2 ssh/other connectivity

   SSH (22) TCP (6) 22 0.0.0.0/0
   
   ALL Traffic ALL ALL 0.0.0.0/0
   

3. Good practice associate your subnet to your route table

4. Under Ec2 -> Security Group

   4.1 To allow SSH connectivity, just add as below

   SSH (22) TCP (6) 22 0.0.0.0/0
   

   4.2 for pings to work from your local machine as as below

   All ICMP - IPv4 All N/A 0.0.0.0/0
   

This will make your connectivity works for pings & ssh from your local machine using your KEY file (xx.pem)

thanks,

Answer 2

In your security group open -1 to -1 on ICMP for range 0.0.0.0/0 and you'll be able to ping.

See my screenshot for a better view:

Image posted by @emostar below

Answer 3

Ping doesn't work with EC2 because ping runs over the ICMP protocol which is blocked in a typical EC2 security group configuration.

Here's a very nifty way to work around this by using tcping (a ping alternative that works over a TCP port):

tcping ec2-174-129-24-92.compute-1.amazonaws.com

tcping ec2-174-129-24-92.compute-1.amazonaws.com 22

It runs on port 80 (the first example) but you can also specify a different port (the second example) to be used to test connectivity.

Answer 4

I found that if you install a VPN server on your AWS server, you can connect to the VPN and ping the private IP address in the virtual private network.