Gzip, Bzip2 and XZ are all popular compression tools used in UNIX based operating systems, but which should you use? Here we are going to benchmark and compare them against each other to get an idea of the trade off between the level of compression and time taken to achieve it.
For further information on how to use gzip, bzip2 or xz see our guides below:
It is critical to regularly take a backup of important data that is stored within a database so that the data can be restored in the event of any problem. Examples of such problems include database server failure, data tampering, corruption and any other number of file system specific problems that are looking to do your database harm.
Here we will cover how to backup and restore an SQL database from MariaDB/MySQL. Read more »
xz is another general purpose data compression tool with syntax similar to the older and more popular gzip and bzip2 options. With xz we will typically get a better compression ratio.
We are going to cover 13 examples of xz here, showing you common tasks that can be completed and just how easy it is to use.
SSH keys can be used to increase the level of security for a user remotely authenticating to a Linux server through SSH. SSH keys are typically preferable in terms of security when compared to passwords as they are far less vulnerable to brute force attack, there is simply a lot more entropy in a key than password.
Here we are going to cover how to configure and use key-based authentication for SSH in Linux. Read more »
MariaDB is a drop in replacement for MySQL and is an open source fork of MySQL created by the original MySQL developers. As of Red Hat Enterprise Linux (RHEL7) and CentOS 7 MariaDB is now the default SQL database, rather than MySQL which was the default in previous releases of the operating system.
Here we’re going to cover how to install and configure MariaDB.
It is important to secure a Linux system as much as possible in order to reduce the likelihood of compromise.
Here are 23 security tips to guide you through hardening your Linux operating system.
Read more »
WordPress is a free web application that allows you to create a fantastic looking website or blog. There are thousands of additional themes and plugins allowing you to easily customize your website to get the unique look and functionality that you’re after. So how can setup your new website using WordPress? Let’s take a look.
Read more »
In many Linux based operating systems such as Debian 8, Red Hat Enterprise Linux (RHEL) and CentOS 7 systemd is now the default init system and is used for service management.
Here we will cover service management with the systemctl command, which is used to control the state of the systemd system and service manager.
I’ve been using Windows 10 as my main desktop operating system for the past couple of weeks, here are some of my initial thoughts on it including things that I like and dislike since upgrading. Finally I’ll conclude with determining if I consider upgrading to Windows 10 to be worth it.
Read more »
By default the telnet client in Microsoft’s Windows operating systems is disabled, this is unfortunate as it is an extremely useful tool which can be used for testing TCP connectivity to external hosts on a specified port.
This is great when you’re trying to troubleshoot network connectivity problems, for example, say we have a web server which should be listening on port 80 to serve HTTP traffic but we are not able to load a web page, by using telnet to connect to the web server on port 80 we can verify the connectivity.
It may be that the connectivity is fine but there is a problem with the web server, or that the web server is stopped and the port is not listening at all, for instance. With telnet we can get a better understanding of what’s going on.