Ralph

Ralph

Techno-babble for the Masses!


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Ralph

Ralph is a car enthusiast, blogger, author and teacher. In addition to being the founder of this website, Ralph is also a Linux Systems Administrator with 9 years+ experience who is also available for freelance or full-time work.

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Rsync to AWS EC2 Using .PEM key

Posted on March 2nd, 2017.

How to use Rsync with standard Amazon Web Services instances that utilise a .pem key file instead of traditional username/password authentication or conventional SSH key pairs: The standard AWS EC2 instances support using a .PEM key to log in, instead of a more common SSH username/password combination. If you want to use Rsync to transfer […]

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Safely Restart a MySQL Slave Server

Posted on June 7th, 2016.

Ensure it’s not accessible by any clients, if you use a load balancer, you should take it off temporarily. Connect to the MySQL Server via the command line: Stop the replication: Now is a good time to make any changes you want to. Resume replication: Check the status to confirm replication is running normally, and […]

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Painlessly Transfer a Heroku Postgresql DB to a Virtual Private Server (VPS)

Posted on June 2nd, 2016.

After spending hours researching a method to easily transfer (backup / restore) a heroku postgresql database to a VPS, I finally found a quick way to do it that didn’t involve tons of errors about version mismatches, incomplete restores (using psql), and etcetera. I’m documenting this here in case I need to refer to it, […]

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How To: Install “Log.io” on Ubuntu 14.04

Posted on November 6th, 2015.

This tutorial presents the steps to install and monitor local log files in real time from a browser using Log.io – For information on Log.io and how it works, see its home page: https://logio.org/

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Getting a Static IP Address in Nigeria

Posted on October 27th, 2015.

Chances are you’re reading this because you’re interested in obtaining a static IP address from a Nigerian based Internet Service Provider (ISP). Continue reading if you’re interested in the requirements as well as the uses and advantages.