devops
Today I was looking for a simple way to test the latency and bandwidth between two Linux servers. The easiest way, of course, is to just use ping. The ping utility should be available on almost any Linux server and is extremely easy to use. Just login to one of
metrics
I have been looking around for a while for a cloud-based service which allows collecting logs and metrics and analysing them. I am particularly interested in a solution which can be deployed for free for smaller applications/amounts of data. Here are some of the solutions I came across: Loggly
productivity
I've long been looking for a tool that allows me to plan tasks, manage them and track time for myself and for a small team. Unfortunately, I have not been very successful thus far to find a effective, robust and affordable solution for this. The latest setup I
wordpress
Problem You have a webpage like http://www.example.com and you would like to serve both WordPress and files from a PHP application from the root domain. For instance, opening http://www.example.com/my-post will open a post on WordPress and http://www.example.com/index.php will
git
WordPress is a powerful platform to just get a simple website up and running. Unfortunately, some things which are considered best practice in software development projects are a bit difficult to realize with WordPress. One of these things is versioning. Thankfully, there is a powerful plug in which enables versioning
Edit: Updated with new script version provided by MaxdSre. To install the Oracle JDK on a Linus server is often a tricky proposition. For one, the download page requires to confirm a prompt and only unlocks the download link after this prompt has been confirmed (via a cookie, I think)
Problem ChromeDriver and Headless Chrome are a great solution for running automated JavaScript tests. Today I wanted to run some tests on a Linux Server (Centos 7) and although Chrome and ChromeDriver were installed correctly, my Java app would just hang after ChromeDriver is started: Starting ChromeDriver 2.33.506092
The HTTPS module of Node.js allows making HTTPS request to other servers. Unfortunately, making requests with this module often leads to poor performance. I found that calling a nearby HTTPS server usually took between 300 ms and 150 ms. With the following simple solution, I was able to reduce
mysql
There are many ways to back up a MySQL or MariaDB server. Some ways include using mysqldump, mydumper, LVM Snapshots or XtraBackup. However, any robust backup solution boils down to one key requirement: The ability to restore the databases to a point-in-time. So, for instance, if your server crashes, you
aws
Problem You would like to resize a volume attached to an EC2 instance. Solution Do the following: * Create a snapshot of your volume (instructions) * Stop your instance * Go to EBS / Volumes and select Actions / Modify Volume * Enter the new size for your volume (note you can only ever make the
open-source
One of the most convinient ways to upload files from the Web Browser to the server is by using file inputs in HTML forms. Many web servers come with preconfigured modules for parsing this data on the server-side. However, sometimes, your HTTP server of choice might not offer such a
aws
Problem You have an existing server that runs a MySQL database (either on EC2 or not) and you would like to replicate this server with a Amazon RDS MySQL instance. After you follow the instructions from Amazon, your slave reports the IO status: Slave_IO_State: Connecting to master ... and
