Install MySQL-MariaDB

Install and Use MySQL/MariaDB

Learn how to get started with the popular relational database MySQL/MariaDB. This quick start guide will cover the installation of both, and an introduction to basic MySQL/MariaDB commands.

CronJob

CronJob – automatically execute essential tasks

CronJobs automate administrative processes such as system maintenance, monitoring storage space and scheduling backups – completely automatic and in the background of the system. This makes CronJobs ideal for computers that have to function around the clock, such as servers. Find out here where and how CronJobs are used.

What does ‘502 bad gateway’ mean?: Explanation and solution

Error 502 Bad Gateway: Where’s the problem?

HTTP status codes emerge when something isn’t running properly on the internet. In this respect, the 502 Bad Gateway error is no exception. But this familiar error message can be particularly tricky: It’s not actually clear where the source of the problem lies. In the chain of gateways along which internet requests run, the error could occur at a number of different points. This article explains...

Error 405 Method Not Allowed: Explanation and solutions

HTTP Error “405 Method Not Allowed”: How to solve the problem

HTTP is indispensable as a mediator between the browser and web server: Both communicate with each other using the transmission protocol on the application layer by sending various types of messages. With an HTTP request, for example, the browser can request a resource or return its own data to the server. If one of these HTTP methods doesn’t work, error 405 (Method Not Allowed) occurs. But what...

What is a session ID?

What is a session ID?

When a website is visited, the server generates a session ID and assigns it to the user. This session ID is temporarily created by the server and assigned to the user for a during their active session to identify the user and their data exchanges throughout the session.

What is etcd?

etcd: A database for key-value pairs

Conventional systems in which the front end and the database run on the same machine are a thing of the past and ever more providers are choosing cloud-based systems instead. These systems come with their own challenges, such as how to handle small components and transport data as securely as possible. One promising solution in this field is etcd, a key-value store. Read on to find out more about...

Err_Connection_Timed_Out

Correcting the error “Err_Connection_Timed_Out”

The error message “Err_Connection_Timed_Out” appears frequently on Google Chrome and means that an error has occurred when trying to access a webpage. This is usually caused by the target server taking too long to send a reply, which results in the browser terminating the communication attempt. Find out in our guide what “Err_Connection_Timed_Out” means, what measures you can take to correct the...

What are session cookies?

What are session cookies?

What are session cookies and what’s their purpose when surfing the internet? Compared to regular persistent cookies, session cookies are temporarily stored on a device. That means once you close down your browser, they are automatically deleted. Since these cookies are essential in order to browse websites, they are permitted under the GDPR.

What are third-party cookies?

What are third-party cookies?

Anyone who encounters personalised advertising on the internet might at first find it odd. How does the internet know that I am interested in going on holiday? Most users leave clear footprints on the net that can be used to create virtual “user profiles”. Third party cookies placed by advertisers are responsible for this. But how do they work, can you have a say in the use of cookies, and what...


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