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11 votes

How to optimize the load time of initial connection and SSL handshake phase of a web page on a 3G network?

Initial Connection You will find that the initial connection includes negotiating the SSL, so since the handshake is high, its a good indicator that something is seriously wrong with the way you have ...
Simon Hayter's user avatar
11 votes
Accepted

10 megabyte gzip limit in AWS Cloudfront?

This is a design limitation: The file size must be between 1,000 and 10,000,000 bytes. https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/ServingCompressedFiles.html ...
Michael - sqlbot's user avatar
8 votes

How to optimize the load time of initial connection and SSL handshake phase of a web page on a 3G network?

Reading the title of your question, there are two things you can do to speed up the initial connection and SSL/TLS handshake. These work for any connection, not just 3G, so you should use these as ...
Tom Brossman's user avatar
  • 2,291
7 votes
Accepted

Does Amazon's RDS Multi-AZ deployment cost twice as much as the normal cost of a single instance?

Amazon's RDS pricing page has two sections. One for Single-AZ Deployment and one for Multi-AZ Deployment. Yes, Multi-AZ is about twice the price of Single-AZ. For example I see: db.t2.micro ...
Stephen Ostermiller's user avatar
6 votes

Can I transfer a domain out of Route 53 (AWS) where it was purchased?

Yes, you can completely divorce yourself from AWS. I am unclear where you read that a domain name "always belongs to the original registrar where you bought your domain." - This is largely ...
davidgo's user avatar
  • 7,959
5 votes
Accepted

HTTP2 is enabled and working, but PHP $_SERVER['SERVER_PROTOCOL'] still says "HTTP/1.1"

This has to do with how Cloudflare connects to servers. Although it does serve the client via HTTP2 (or HTTP3), it still connects to the server itself via HTTP1.1. Cloudflare only uses HTTP/1.x ...
GreatBlakes's user avatar
5 votes
Accepted

Can I transfer a domain out of Route 53 (AWS) where it was purchased?

AWS Route 53 is a domain registrar[1], a company that is hooked into the greater domain name system and has a license to sell domain names to their customers and hold them in the customer's name. To ...
Maximillian Laumeister's user avatar
4 votes
Accepted

PHP doesn't work on Amazon AWS S3 for email contact form

S3 web site hosting is strictly for static content. Nothing stored in S3 is executable by S3, such as PHP scripts. This is by design, and not a configuration issue with your site. You can host a ...
Michael - sqlbot's user avatar
4 votes
Accepted

Cannot forward root domain managed by Google Domains to AWS Load Balancer

This is a limitation in the fundamental design of DNS itself. Adding a CNAME at the apex of a domain is essentially invalid because it leads to an illogical set of consequences. This is why Route 53 ...
Michael - sqlbot's user avatar
4 votes

Does Amazon's RDS Multi-AZ deployment cost twice as much as the normal cost of a single instance?

To estimate the RDS cost I recommend the AWS Simple Monthly Calculator. For a db.m4.large PostgreSQL instance I get the following: Single-AZ - $140.13/month - no High Availability Multi-AZ - $280.25/...
czerasz's user avatar
  • 141
4 votes
Accepted

Why am I getting bot hits from compute-1.amazonaws.com?

These look to me like bots/crawlers running on EC2 instances, rather than anything to do with Cloudfront. AWS publish a list of IP ranges used by Cloudfront here : https://docs.aws.amazon.com/...
Jonathon Sim's user avatar
4 votes
Accepted

IllegalLocationConstraintException on CloudFront (with S3)

My issue was because my CloudFront origin was not in us-east, and when you auto-select your bucket's origin in CloudFront, it doesn't add the location prefix to the url. So make sure you add your s3 ...
senty's user avatar
  • 171
4 votes

How can I mask an AWS site with a domain registered with godaddy?

Domain "masking" typically involves loading a website from another domain within an iframe (and if I remember correctly, this is how GoDaddy's masking feature works). But if the target ...
Maximillian Laumeister's user avatar
4 votes

How can I mask an AWS site with a domain registered with godaddy?

As best I've ever been able to tell thus "url/domain masking" is a made-up term used by a few web providers - They are nothing more then frames or iframes. From a technical POV there is no ...
davidgo's user avatar
  • 7,959
3 votes

Does Amazon's RDS Multi-AZ deployment cost twice as much as the normal cost of a single instance?

Old thread but it's searchable... If you run multiple instances in multiple AZs, of course you pay for each instance. There is some additional data replication costs but the BIG miss here is that you ...
Michael Geiser's user avatar
3 votes
Accepted

AWS Elastic Beanstalk - Wordpress keeps resetting plugins and themes

Amazon has instructions for deploying WordPress on Elastic Beanstalk. The part that will prevent your problem is the section "Enable WordPress to Store Assets in Amazon S3". You have to install ...
Stephen Ostermiller's user avatar
3 votes
Accepted

Apache not working on AWS Linux after reboot - 301 Response code

I figured out the issue. When an AWS instance is rebooted, the DNS address changes. As I am using Wordpress, I need to update the siteurl and home url in the MySQL Database for the wordpress site to ...
Brien Crean's user avatar
3 votes
Accepted

Route 53 on AWS, Whats stopping me from using someone elses domain?

I was in the position to try this. I have two AWS accounts: one for personal use and one for work. My work account has several domains using Route 53, including some typo redirects that nobody is ...
Stephen Ostermiller's user avatar
3 votes

Understanding of complete stack

What you are missing is that the components of the stack are somewhat abstract concepts, so the delineations are not necessarily clean, on the server side. Web servers typically sit in front of ...
Michael - sqlbot's user avatar
3 votes

Importance of "List-Unsubscribe" header in bulk email

(NB: Since I haven't gotten any answers to my question, I'll try to answer it myself -- though based only on my own experience. If others have more knowledge/more experience, I'd still love to hear ...
Aaron's user avatar
  • 181
3 votes

Alternative to SSL certificate?

You can use a free SSL certificate. The linode community, (mostly affiliates who make support videos or blogs and offer a coupon for starting linode account), seems to have the best help in setting up ...
Wayne Smith's user avatar
  • 2,656
2 votes

Can I use Route 53 with Amazon AWS to mask a subdomain?

Masking, no. Redirecting, yes, with help from S3. You can create an empty S3 bucket named abc.example.com, configured to redirect all requests to another host, xyz.example.org. Configure an A ...
Michael - sqlbot's user avatar
2 votes
Accepted

Is it possible to show AWS CloudWatch metrics graphs on your own dashboard webpage?

This post describes the exact steps (official AWS documentation) to do this: https://aws.amazon.com/blogs/devops/building-an-amazon-cloudwatch-dashboard-outside-of-the-aws-management-console/ You'll ...
amit_saxena's user avatar
2 votes

How to setup CloudFlare Origin CA with a wordpress server hosted on Amazon AWS?

The AWS Certificate Manager product does not support third party certificates so you will need to import the CloudFlare certificate from within the AWS Identity and Access Management product, where ...
richhallstoke's user avatar
2 votes

Email messages sent from AWS EC2 are getting marked as spam

Let's go through the individual issues shown... Dynamic IP When setting up something like an email server you need to ensure to attach an elastic IP address to the EC2 instance as this remains ...
Chris Rutherfurd's user avatar
2 votes

How to connect a Freenom domain name to my Amazon ec2 instance?

Freenom has an FAQ that addresses how to set up DNS: Usage: Works like any other domain name, use URL Forwarding, free Freenom DNS Service or your own DNS (Name Servers). ... Freenom DNS Service: for ...
Stephen Ostermiller's user avatar
2 votes
Accepted

Clients domain does not load in china, instead another site loads

I have just checked with several DNS lookup tools that the address is not tampered with in China. I have even loaded the website using a Chinese proxy. Again, all is normal. I suspect that the client ...
Zdenek's user avatar
  • 256
2 votes

AWS: pointing A record to load balancer on A record causes incoming email to stop functioning

MX record: *.example.com matches everything but the naked (no subdomain) domain. So no MX for example.com. Aparently a friendly MTA will try the A record, which used to work for me, since it pointed ...
Ingcur's user avatar
  • 41
2 votes

Does AWS have any firewall products?

Yes, AWS offers what they call AWS "WAF", short for Web Application Firewall. As the name implies, it's intended purpose is to help you protect your applications from exploits that are known to affect ...
Josh Salganik's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible