How to Open Port in Amazon EC2 instance

By default Amazon EC2 only allow port 22 (SSH) on Linux servers and port 3389 (RDP) on Windows Instances. All

Whitelist an IP in Amazon AWS security group from command line

Whitelist an IP in Amazon AWS security group from command line

To white list an IP in Amazon AWS security group using aws command line tool, run Example

Amazon S3 CORS

Amazon S3 CORS

To enable CORS for Amazon S3 bucket, add

Resize Amazon EC2 Boot Disk

Once you resize the disk in the Amazon AWS console, it gets auto resized on reboot. Sometimes this won’t happen,

Enable Gzip in Amazon Linux

Enable Gzip in Amazon Linux

To verify Apache module is loaded, run Create file Add following content Restart Apache with To verify gzip is working,

Configure Postfix to use Amazon SES

Configure Postfix to use Amazon SES

Install postfix with Update postfix config with Edit Add to end of the file In the above, replace SMTP_SERVER_NAME with

Create Dummy Data in Amazon EFS

Create Dummy Data in Amazon EFS

Disk read/write speed in Amazon EFS depends on how much data you have on the file system. Amazon EFS have

Amazon AWS  (awscli) command line interface

Amazon AWS (awscli) command line interface

awscli is a command line tool for Amazon AWS. To install, run If python 2, you need to install package

Cpanel Server Behind NAT – Amazon EC2

Cpanel Server Behind NAT – Amazon EC2

When your cpanel server is behind nat, for example Amazon EC2 where you have an internal IP and External IP.

Amazon Elastic IP The maximum number of addresses has been reached.

Amazon Elastic IP The maximum number of addresses has been reached.

When assigning Elastic IP in Amazon AWS, I get an error The maximum number of addresses has been reached. This