Amazon Cloudformation – Using Fn :: Join with a "Ref"

I am in an obstacle with this, I have been trying to find a way to simplify my work to avoid using a giant if statement block. I came to the idea that I could use s "Ref" with a "Fn :: Join", but obviously it doesn't work or at least not the way I visually think it would work.

"Predicates": [{
"Ref" : {"Fn::Join" : ["", [{"Ref" : "IpSets"}, "IPSet"]]},

So, how I visually see that this works is that "Ref": IpSets is a parameter that we set when loading the file in the cloud formation. Therefore, it will display that text and combine it with IpSet to create something like DevIPSet. Since it is a chain after a union, it would become "Ref": "DevIPSet" and that would eliminate the set of IPs I have set aside.

Obviously, this does not work and I was coming to the community if there is a trick I can use. I have investigated the mapping and I can't see that that works with the data ID either. The only real solution I've found is to use Fn :: If and make a giant block, but that's ugly.

Amazon web services – the HTTPS site does not load on the NGINX web server

Below is my NGINX configuration. My website is implemented in the AWS EC2 instance. I checked the firewall settings and port 443 is open for public access.

I can access my website from But I can't access the website from

If I change the settings of listen 443; to listen 443 ssl;. I receive an error when restarting the NGINX service.

I have secured the AWS Certificate Manager SSL certificate.

Configuration File:

server {
    listen 80;
    listen [::]:80;

    listen 443;

    # listen 443 ssl; 

    root /opt/bitnami/apps/my_website;
    index index.html;


    location / {
            try_files $uri $uri/ =404;

Amazon web services – Is there a way to have multiple external IP addresses with Elastic Beanstalk?

I am using Amazon Elastic Beanstalk with a VPC and I want to have multiple environments (workers) with different IP addresses. I don't need them to be static, I would really prefer that they change regularly if possible. The reason they are in a VPC is to make a pair with MongoDB Atlas.

Is there any way to have multiple environments in a VPC with dynamic external IP addresses?

Amazon RDS – MySQL RDS queries time performance is considerably slower than MySQL in EC2

We have one MySQL 8.0 db running on EC2 (t2.xlarge For example, general-purpose SSD of 300 GB) that was working quite well handling all our load (approximately 500 requests per minute during working hours).

We just made a migration to use RDS (db.m5.2xlarge example, general purpose SSD 300 GB) as a slave to handle our SELECTs queries.

However, RDS performance is CONSIDERABLY slower than EC2. It's crazy how slow it is compared to EC2.

In the following graph you can clearly see that, just like we did the migration, the APDEX score (obtained from a new relic) dropped sharply (Fig. 1). And not only that, but the response time of db was clearly worse in the SELECTs statements (Fig. 2).

Apdex before and after RDS

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To be clear, we are 100% sure that this is not an ongoing replication problem with the db in EC2. As we had already used RDS as our only teacher and the APDEX score was worse (permanently in the gray area of ​​the graph).


  1. Both dbs are in the same availability zone.
  2. There is no problem with the use of credits in RDS.
  3. MySQL 8.0.x does not support query cache.
  4. Our consultations are already tuned.
  5. IOPS is the same for both instances.
  6. Points 3 and 4 are not really relevant to the problem, since we are talking about the same version of DB, the same queries, the same region, only different architectures (EC2 vs RDS).

We really want to use RDS, due to the way we can handle restorations, backup / snapshots, updates, etc. But with this performance, we find it difficult to be a sustainable option. Is there any way to improve / solve this?

linux: Amazon s3 cube mount point is automatically disassembled

Use s3fs on the aws ubuntu instance to mount the s3 cube. The following is the command I used to mount the cube.

sudo fusermount -u /s3/project1
sudo s3fs -o allow_other project1 /s3/project1  

The machines will never restart. But often this mount separated. And while accessing the assembly I get the following error.

Cannot access & # 39; / s3 / project1 & # 39 ;: the transport endpoint is not connected

How to have it attached permanently?

magento2 – Amazon payment error in Magento 2.3

I have an Amazon payment method in my store, I used Magento 2.3

If it's sandbox mode, it's fine. But live mode, show this error. Please help me, thank you all

Fatal error: Uncaught TypeError: Argument 2 passed to MagentoEavModelAttributeDataText::validateLength() must be of the type string, null given, called in /home/public_html/vendor/magento/module-eav/Model/Attribute/Data/Text.php on line 80

Is it safe to buy Amazon comments from

Some of my friends are buying verified Amazon reviews at

I recommend buying comments on this site. I want to know if it is safe for my Amazon seller account.

Amazon web services: Apache redirect loop when rewriting HTTP to HTTPS behind AWS Network Load Balancer

The existing solutions did not help me, so I must be missing something else.

So I am trying to set up a website with Apache 2.4 / CentOS 7 behind an AWS network load balancer.

I am using this in httpd.conf to rewrite HTTP-> HTTPS, which is also considered the right way to achieve HTTPS only behind an AWS load balancer.

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule .* https://%{SERVER_NAME}/$1 (L,R=permanent)

where SERVER_NAME It is the DNS name of my server that is resolved in the IP address of the load balancer.

https://%{HTTP:Host}/ It was tried without success too.

Without this, it is possible to access the server without problems (except that it is possible to use HTTP, of course).

Since the load balancer is the encryption endpoint for the client, I am only listening on port 80 on the web server. That is the expected form of implementation by AWS.

However, by using this, the server will redirect my request endlessly until the browser gives up. Cast also It happens when you try to connect to HTTPS initially.

The output of the Apache debug level log shows no error, except that the request is running out and the load balancer logs are also not very useful. But maybe you can make sense of it.

I was also thinking about SELinux causing problems, but it is set to permissive. So, I really shouldn't do anything.

Apache access_log:

Apache Error_log:

Load balancer:

Any Help is greatly appreciated.

GET – Helium 10 Elite – Amazon FBA Master Minds |

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Helium 10 Elite – Amazon FBA Master Minds


Why join Helium 10 Elite?
To overcome, overcome and beat the competition
Helium 10 Elite is designed to be the ultimate catalyst for advanced vendors.
No other Amazon FBA expert group rivals its comprehensive benefits.

Benefits of Qualified Elite Members
This is what you will get and more.
Unlock Helium 10's highest level plan
Exclusive benefits are granted to Elite members, including 1,000 ASIN for our Alerts tool, access for up to 5 users and 500 uses for Index Checker.
Choose from 5 free previous expert trainings
Select from a list of previous trainings provided by external experts.
Attend Elite exclusive in-person workshops
4 to 6 intensive workshops in Helium 10 HQ.
Webinar training for monthly members only
Every month, e-commerce experts will join us and share what is working NOW inside and outside Amazon. This is high level information that you will not find anywhere else.

Join a private Facebook group of & # 39; Helium 10 Elite Members & # 39;
Participate in a high level speech within a closed discussion space of the Elite community.
Helium 10 Elite provides you
Cutting-edge strategies
Helium 10 Elite offers you the strategies and tactics that 1% of Amazon sellers are using NOW. Many of them are exclusive to Helium 10 Elite and are not found anywhere else.

Elite guarantee
In addition to technical knowledge, Helium 10 Elite keeps you at the forefront in any type of news and updates related to Amazon. Adjust to the changes and prosper with the most up-to-date privileged information.

Fast growth
Helium 10 teaches you how to increase sales and profits while positioning your business for a profitable exit. Implementing any number of techniques of 8 figures that you learn in Helium 10 will only benefit you, no more stagnation.

Only experts
In addition to Kevin King and Manny Coats, Helium 10 Elite is networked with a very formidable group of millionaire sellers. Your peers will consist exclusively of other advanced vendors. Collectively learn from a group of winners and promoters.

Endless value
You receive all the benefits of business consulting, attendance at expensive industry conferences and personal advice within ONE PLAN. In addition to this, receive full access to the highest Helium 10 plan.


GET – Ben Cummings – Amazon Fast Track UPDATE March 20, 19 |

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Ben Cummings – Amazon Fast Track UPDATE March 20, 19


"I have just reached $ 114,000 per month in my Amazon business … I rank on page one for every product I launch … and I did all this working" part time. "
Would you like to earn this kind of money from your private label business?
I can tell you that it is absolutely possible.

I know because I am the living test.

I have been on "Amazon" for a relatively short time. I already reached $ 114,000 / month, of which I get a large part of that that I can keep as pure profit.

But the reason for my success at Amazon is because I am doing things very differently from what is taught at ASM, many of which are completely counterintuitive …

… and more importantly …

I have developed a stable set of unique "marketing and classification methods" that nobody else is using, that work exceptionally well, and that I have shown that they work within my own Amazon businesses.

There are only three things I should focus on in my Amazon business:
1) Sort my products on page one, as quickly as possible.

If you are on page 3, you could also be on page 300! Like ranking a website on Google, if you are not on page one, you are irrelevant. Amazon works the same way.

2) Get as many five-star reviews in the shortest possible time for my new product.

When people use Amazon and click on their list, if the title and images seem attractive, what does everyone do?

Scroll down to read your comments!

If you only have a couple of comments, you won't win your impulse purchase … and … you won't "stay" in the rankings either.

3) Find hot products to sell

I have a simple objective:

To earn $ 10,000 / month per product.

That is a conservative goal, because my experience is that you can do more than this, but that is my initial goal.

To reach sales of $ 100,000 / month, I need to launch 10 good products.

I like to keep the business "simple." And earning $ 100k per month is as simple as that.

In fact, I recently exceeded this goal, having reached $ 115k in sales with less than 10 products.

"I think I have cracked the code on how to rank any product on the first page on Amazon"
But there is something else I need to show you …

Something that will really open your eyes.

With each product that I personally launched on, I was able to get a proactive ranking on page 1 on Amazon, usually in less than 12 days.

Yes, in each case.

Yes, even in two ultra competitive niches

Yes, in multiple product categories.

"What the hell is your secret?"
As you can see, my successes on Amazon are no accident.

I provided him with numerous proofs of proof, income and classification tests, which are for my own products and all the recent ones.

I hope I have shown you by now that I know my shit. As my Amazon business grows and reaches six high figures per month, I will see the transition of the "guru" business and return to my roots as an entrepreneur, leading our phenomenal growth and gradually eliminating all private clients and " wages. " slave ”, projects without leverage.

The reason I mention this is that you will no longer have access to "Ben Cummings" as a coach in the future. Frankly, why bother training and consulting when I can do much more (for less time and effort) in my Amazon business?

My goal has always been to build a Big Business that can sell for several million dollars and "retire" to the island of Saint Barths, and I am focused on achieving that goal in the next 36-48 months.

So, if you want to "take advantage of Ben," this is probably the last chance to do it, access my brain and learn from me about how to crush it on Amazon, to learn these master marketing skills, so that you can also reach your own version. of "retiring to Saint Barths".

Which brings me to the purpose of this "final" sales letter that I write to you …

Amazon Fast-Track monthly training club: a very limited opportunity.
Recently I took 10 private students for 1 to 1 training, but I closed the doors to that because I simply don't have time to do "private consultations" …

And unfortunately I plan to never have more private 1 to 1 coaching clients in the future.

But as soon as I stopped accepting new clients, we continued to receive daily emails from people who wanted to learn from me.

What to do???
I decided that, instead of continuing to train one by one, I would be willing to train a small elite "mastermind group" of high-performance people and meet "virtually" through intensive training webinars.

It would not only be fun.

Not only would it be a great network for both of us.

It would also allow me to take several of you "along the trip" to the top of the Amazon, as we all prosper and grow together.

Now THAT was an exciting prospect for me, and the reason why I decided to launch this very limited Amazon Monthly Coaching Club.

With that, let me tell you the details of what you will get …
First, to qualify for a place, you MUST have purchased the ASM course and not reimbursed, since I am not teaching any ASM in this program. This training program is not intended as a replacement for the excellent content you have learned from the ASM course. However, this training "takes you to the next level."

Second, Jason Fladlien and Wilson Mattos recommend and support this training club for their ASM Teachers … which is amazing! If you know something about those two, they almost never lend their names behind the projects unless they wholeheartedly believe in it! So I am very flattered that they have associated with this project and support it. (Thanks guys!) This monthly training club is only offered to ASM Masters, so you must be an ASM Masters customer to be eligible.

I am keeping the format of this simple and powerful. It's about training him, teaching him my numerous "launch" methods of marketing and promotion, and then taking action. It will also try to get a load of five-star reviews and block your ratings once you get them. And finally, it will be a rapid expansion of your Amazon business so that you can reach the large numbers that lead to financial freedom and big business. It's a "this is what Ben is doing now, this month, to crush him on Amazon, and you can look over his shoulder every month with the idea that you duplicate his successes within your own Amazon business club."

Summary: this will be an intimate monthly Amazon training class, which will meet through webinars twice a month, in which I will teach my tactics and methods, on an ongoing basis, to help you build your Amazon business so that be a quick success

Amazon Fast-Track Monthly Training Club – Details:

1) Participate in two live webinars per month. The first webinar focuses on the "Amazon Web Growth and Marketing Training Seminar" that will last between 60 and 90 minutes.

This is where I will teach you (on a monthly basis continuously) EXACTLY what I am doing on Amazon to grow, market and scale. You get an inside view of my business and Amazon methods, with the idea that you take what you've learned to double my results!

2) Then, each month, we will do a second webinar, which will be an "Amazon Q&A webinar"

In this webinar of questions and answers of Amazon, you will have the opportunity to ask me ANY question you want, get essential help on the problems that arise … help with marketing questions … and help with anything else you want or need .

In summary:
It will be part of two live webinars per month.
Webinar one, which teaches Amazon tactics and tricks, which I will NEVER reveal outside this coach club.
Webinar dos, is a monthly intensive webinar of questions and answers / brainstorming with our club members
When appropriate, I will share documents, emails, announcements, tricks, documents, contracts, etc.
You will get reps, so you can see future and past reps whenever you want.