I cannot connect to AWS RabbitMQ from my local machine

Question

I have created RabbitMQ instance in AWS, it works and Web Console works too. I have created an exchange, queue bound with it and message. All works. 
Then I try the c# code , the host and port I have got from AWS RabbitMQ config.

`ConnectionFactory connectionFactory = new ConnectionFactory();
            connectionFactory.Port = 5671;
            connectionFactory.HostName = "amqps://prefix.mq.us-east-1.amazonaws.com";
            connectionFactory.HostName = "prefix.mq.us-east-1.amazonaws.com";
            connectionFactory.UserName = "admin";
            connectionFactory.Password = "mypwd";

try
            {
                IConnection connection = connectionFactory.CreateConnection();
            }
            catch(Exception x)
            {
                Console.WriteLine("TEST: {0}", x.Message);
            }`

The result is: "x.Message = "None of the specified endpoints were reachable""
Where am I wrong? How to fix it?

Answer

Also, I see 
-----------

> Security and network
VPC
vpc-xxxxxx3a
Subnet(s)
subnet-xxxxx0e
Public accessibility
Yes

---------
But no any Security group. May be I need to add it? How to ?

Answer

Hi!

I gather you have deployed RabbitMQ through Amazon MQ? What are the settings for the actual RabbitMQ, is the network settings set to 'public access' or 'private access'?

Answer

Also, I have scanned the url using Zenmap

> Starting Nmap 7.92 ( https://nmap.org ) at 2022-02-11 09:45 W. Europe Standard Time
NSE: Loaded 155 scripts for scanning.
NSE: Script Pre-scanning.
Initiating NSE at 09:45
Completed NSE at 09:45, 0.00s elapsed
Initiating NSE at 09:45
Completed NSE at 09:45, 0.00s elapsed
Initiating NSE at 09:45
Completed NSE at 09:45, 0.00s elapsed
Failed to resolve ".mq.us-east-1.amazonaws.com:5671".
NSE: Script Post-scanning.

Answer

i had simillar problem with C# .Net 6.0. I solved it by adding Ssl setting like following:

`string hostName = "b-407ac8c5-64dc-4b0c-adb6-dae0423fa7b1.mq.ap-northeast-1.amazonaws.com"; // change to yours`

`var factory = new ConnectionFactory()`

`{`

` HostName = hostName,`

` Port = 5671,`

` UserName = "YOURS",`

` Password = "YOURS",`

`Ssl = new SslOption`

`{`

`ServerName = hostName,`

`  Enabled = true`

`  }`

`};`

Answer

I have scanned the url without port using ZenMap: 
the host was found and traceroute built from my local machine to AWS. 
But: it found only one opened port: 443. I need 5671, what can I do in this situation?

I cannot connect to AWS RabbitMQ from my local machine

Also, I see

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