How to increase swap space in Linux
In this post, I show you how to extend your system’s RAM using a swap file.
Tech
Ways to free up disk space on Ubuntu Linux Servers
This post lists a few useful commands for inspecting disk usage and reclaiming free space in Ubuntu systems.
Freeing up space used by docker containers.
When building or working with docker containers, you may get error messages like the one below relating to a lack of space: The error occurs because Docker objects accumulate over time and can eventually exhaust available storage. To resolve do the following: This will tell you how much space Docker objects are taking up in …
Encryption using Python and AWS
In this post I’ll show you how to encrypt and decrypt strings using the AWS Encryption SDK and AWS KMS. Step 1: Install the AWS SDK for Python and the Encryption SDK You’ll need boto3 to create a Master Key programmatically and the aws-encryption-sdk for encrypting and decrypting data. Step 2: Add AWS credentials to …
Installing nginx on Linux
In this post, I show you two ways of installing and configuring nginx on Linux.
SCP: Sending files between servers using SSH
SCP or Secure Copy is a useful program for sending files between two or more computers over a secure shell (SSH) connection. In this post, I’ll show you how to use SCP to send files from your local computer to a remote, copy files from a remote computer to your local or copy files between …
Tmux
A part of my job involves connecting to a couple of Amazon EC2 instances(Linux servers) regularly to run commands, build, debug and deploy code. All along I’ve been using tabs terminal tabs to keep track of each server connection and the processes running in it. Using the terminal emulator’s tabs feature works okay for simple …
How to connect and use two different networks simultaneously on Windows
In this post, I show you how to use two different network connections in Windows simultaneously.
Security in AWS
An overview of security within the cloud environment using the multi-tiered architecture.