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 other ports…
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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 aws ec2 authorize-security-group-ingress –group-id SECURITY_GROUP_ID_HERE –protocol…
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, you have…
Enable Gzip in Amazon Linux
To verify Apache module is loaded, run [root@ip-172-31-29-220 ~]# apachectl -M | grep deflate deflate_module (shared) [root@ip-172-31-29-220 ~]# Create file vi /etc/httpd/conf.d/gzip.conf…
Configure Postfix to use Amazon SES
Install postfix with apt-get update && apt-get install postfix libsasl2-modules -y Update postfix config with sed -i “s/default_transport = error/# default_transport =…
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 something called…
Amazon AWS (awscli) command line interface
awscli is a command line tool for Amazon AWS. To install, run Create a virtual environment and activate it Install awscli with…
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. Go to…
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 is because…