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...
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...
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.
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...
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 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.
Anyone who encounters personalized advertising on the internet might at first find it odd. How does the internet know that I am interested in going on vacation? 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...
If you’re looking for a powerful open-source solution for in-memory data storage, you’ll almost certainly find yourself asking “Memcached or Redis”? The two databases have a lot in common, but there are some fundamental differences too. Read on to find out which system best meets your requirements.
Memcached is a cache server whose function is to store and quickly retrieve data from memory. This popular open-source solution is well-suited to support demanding web applications since its response times are just a few milliseconds. In this article, you will learn how Memcached works and what advantages and disadvantages it has.
From taking the first steps on the internet to scaling up with them as they grow, IONOS is the web hosting and cloud partner for small and medium-sized businesses. In an interview with web hosting portal Website Planet, Patrick Schaudel, Head of Online Applications SME at IONOS provides detailed insights into the comprehensive IONOS product world.
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