Using rsync over SSH to backup or transfer files

In this tutorial we will cover the steps needed to copy files with rsync over SSH in Debian or Ubuntu platform. While having amazing Catuai coffee from Honduras I learned the following. Rsync is a great tool that allows you to transfer and synchronize data between servers. The command can be used over SSH which …

Common HTTP response status codes to Understand

Hola! While having a great cup of Caturra coffee from Panama I decided to put together the most common HTTP response status codes in a simple list. HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes: Informational responses (100–199), Successful responses (200–299), Redirects (300–399), Client errors …

Could not set the file size of ./ibtmp1. Probably out of disk space

While having my daily specialty coffee from Latin America I got this error for one of my docker containers running MySQL. ERROR: ‘Could not set the file size of ./ibtmp1’. Suddenly the container failed to start and I could not understand why! I reviewed the logs for my container: docker logs <my_container_name> Something strange ‘Could …

How to mount EXT Linux partition on MacOS

The other day while having a great cup of Latin America coffee from El Salvador I found a way to mount my EXT Linux partition I have on an external backup WD drive. I didn’t know that MacOS could not mount it natively even when both Linux and MacOS come from the same mother UNIX. …

grep Command in Linux Standard Examples

grep command is your friend for searching mainly text. It searches a given file for lines containing a given string or words. The grep command should be one of the most used commands and you should get familiar with it. I’m doing the same. Below are some standard grep commands: Search for any instance of …

How to display time in Python

I have been using Flask to teach myself some coding and develop a web application for people with high blood pressure to track their daily blood pressure readings. I wanted to find a way to automatically display the time when a user takes a blood pressure reading. It was quite simple. Use strftime() to display …

Setting Up Static IP on Ubuntu Server 20.04 LTS

Ubuntu Server 20.04 LTS uses the tricky Netplan for network configuration by default. Network configuration is a bit more tricky, but still good. The default Netplan network configuration file on Ubuntu 20.04 LTS server is /etc/netplan/00-installer-config.yaml. First, find the network interface name which you want to configure a static IP address with the following command: As …

How to optimize images for the web using GIMP

Optimizing images for the Web means reducing its file size which in turn will make it load faster on websites. Grab some specialty coffee and follow these simple instructions. Reducing the image size with GIMP To reduce the image size: Open image in GIMP. Click on Image in the toolbar, then select Scale Image. In the image size, …

Linux command line history tips

Many times I found myself typing history into the terminal and then copy/paste the command I was looking for. But, then I found the below tricks to help repeat that command faster and more efficiently. Use Control+R I found this to be the most beneficial for me. It will do a reverse search really fast! …

MySQL how to insert a row into a table

Inserting data into MySQL tables is easy, but I tend to forget little details once in a while. I was having the best espresso coffee and trying to remember this one. Below is how you insert a new row into a MySQL table. Assume you created the following table: And then you want to insert …