Recently while rebooting the web server that hosts this website in order to perform a kernel update I ran into a kernel panic on boot.
Amazon Web Services (AWS) do not seem to provide an interactive console for Elastic Compute Cloud (EC2) instances, so I had to work out another way to fix the problem which I have documented here.
Following on from my recent Linux web server benchmarks, I’m going to be performing the same tests on all current generations of Microsoft’s IIS web server.
Here I’ll be performing benchmarks against the below versions of the IIS web server and then comparing them against each other to get an idea of which one performs the best under a static workload.
First I’ll discuss how the tests were set up and actually done before proceeding into the results.
Dandified Yum (DNF) is an RPM based package manager which is used to install and update packages in various Linux distributions including CentOS, RHEL and Fedora.
DNF is the next major verison of Yum and as such it aims to maintain CLI compatibility with Yum, so a lot of the information here will be similar to our yum commands.
Like Yum, DNF is quite powerful as it’s capable of automatically resolving dependency issues, and is similar to other package managers such as ‘apt-get’ in Debian based distributions.
These examples should serve as a useful introduction, guide or cheat sheet style resource for how to use the dnf command in Linux.
In December 2016 Microsoft made their SQL Server database available in Linux. Here we’ll cover how to install and perform basic setup of MSSQL in the RHEL based Linux distribution CentOS.
Cloudflare is a widely used content distribution network (CDN) which is freely available to help speed up your website by caching various contents at locations around the world.
While I have been taking advantage of the free plan on this website for a number of years I’ve often asked myself “is the Cloudflare Pro plan worth getting?”. At $20 USD per month it costs the same as the server itself. With limited resources available online, I decided to upgrade myself and find out if the pro plan made much of a practical difference to my website.
I’ve performed some basic benchmarks on a number of different file types at different file sizes on this website both on the free plan, and on the Pro plan after I upgraded in August 2016. We’ll take a look at the results and see if any of the Pro features helped speed up load times.
In December 2016 Microsoft made their SQL Server database available in Linux. Here we’ll cover how to install and perform basic setup of MSSQL in the Ubuntu distribution of Linux.
DNF, or Dandified Yum, which is the next major version of the Yum package manager was introduced with Fedora 18. As of Fedora 22, it has become the default package manager.
As you may know, the Fedora Linux operating system is essentially a bleeding edge testing ground for packages that may be included in RHEL/CentOS based distributions in the future.
It is therefore likely that in some future release, RHEL/CentOS will also make use of DNF rather than Yum to take advantage of the new features, so let’s take a look at what’s involved in installing and using DNF in CentOS Linux so that we can be ready for it when it’s made default.