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AWS How to Copy EBS Volumes to Different Account

It is common for an organization to have multiple AWS accounts, In my opinion, it’s a best practice to have different accounts for DEV, QA, and PROD environments. One of the reasons, just in case of any security compromise your other accounts would be unaffected.

Managing multiple accounts could be a challenge as well. Recently, I […]

How to Fix Redis CLI Error Connection Reset by Peer


Recently we faced an issue with an AWS ElastiCache Redis instance when trying to test the connections from EC2 Instance using Redis CLI, we faced the following error

$ ./redis-cli -c -h my-redis-server -p 6379 my-redis-server:6379> set a “hello” Error: Connection reset by peer




On investigation, we found that the ElastiCache Redis Instance is using Encryption in-transit and Encryption at-rest and by design, the […]

EC2 volume size incorrect

Expanding the Storage Space of an EBS Volume on Linux

[root@data ~]# df -TH Filesystem Type Size Used Avail Use% Mounted on /dev/xvda1 xfs 859G 818G 42G 96% / devtmpfs devtmpfs 4.1G 0 4.1G 0% /dev tmpfs tmpfs 4.2G 0 4.2G 0% /dev/shm tmpfs tmpfs 4.2G 26M 4.1G 1% /run tmpfs tmpfs 4.2G 0 4.2G […]

Adding SSL to Apache on EC2 with Amazon Linux

Adding SSL to Apache on EC2 with Amazon Linux


These notes assume you have Apache installed and working on EC2 with Amazon Linux, but it’s fairly similar for other versions of Linux.

Install OpenSSL and the Apache Connector // for Apache 2.2 yum install openssl mod_ssl // for Apache 2.4 yum install openssl mod24_ssl […]

Migrating to Amazon Linux 2

AWS also announced that Amazon Linux 2018.03 is the last release for the current generation of Amazon Linux and will be supported until June 30, 2020. Therefore, you have to come up with a migration plan.

Amazon Linux 2 comes with the same benefits as Amazon Linux, but it adds some new capabilities:

long-term support: […]

ssh tunnel for RDS AWS

ssh tunnel for RDS via bastion host

Our RDS db is hosted on Amazon. Our Bastion(Jumphost) can connect to the db. Connections to the db are not allowed outside of the internet.



Run ssh tunnel locally:

This creates a tunnel from my local machine to the Bastion:


Adding SMS Notifications to Your Bash Scripts

Cost Note: The first 100 text messages / month are free. After that, you may start incurring charges.

Step 1: Create an Appropriate AWS User

Start by creating a new User or Group in AWS with the appropriate privileges. You do NOT want to use your root account in production, for security reasons. I would suggest […]

How to Install Configure AWS CLI -Linux, OS X, or Unix

How to Install Configure AWS CLI -Linux, OS X, or Unix AWS CLI (Command Line Interface)

The AWS Command Line Interface is a unified tool to manage your AWS services. With just one tool to download and configure, you can control multiple AWS services from the command line and automate them through scripts.

Steps to […]

HTTPS TLS performance optimization details

HTTPS TLS performance optimization details

HTTPS (HTTP over SSL) is a security-oriented HTTP channel and can be understood as HTTP + SSL/TLS, that is, adding an SSL/TLS layer under HTTP as a security foundation. The predecessor of TLS is SSL. Currently, TLS 1.2 is widely used.



TLS performance tuning TLS is widely considered […]

ec2 cli -1

#!/bin/bash # EC2 # List your running EC2 istances aws ec2 describe-instances # Stops an instance aws ec2 stop-instances –instance-ids i-004f15f18e76bb7eb # Starts a stopped instance aws ec2 start-instances –instance-ids i-004f15f18e76bb7eb # Reboots an instance aws ec2 reboot-instances –instance-ids i-004f15f18e76bb7eb # List image information aws ec2 describe-images –image-ids ami-340aae4e #Creates an image from an instance […]