Data Protection

S/MIME: the standard method for e-mail encryption

S/MIME: how to encrypt and sign your e-mails

If you send an e-mail without additional security measures, it’s like sending a postcard: if everything goes as planned, the information should arrive unchanged and unread in the recipient’s inbox. However, if someone intercepts the card or the e-mail in transit, they can read the contents without any problem and make as many changes as possible. Just like you would use an opaque envelope to...

Data mining: analysis methods for big data

Data mining: analysis methods for big data

The total amount of data generated worldwide increases by 40% every year. Many companies seek to make use of the constantly increasing mountain of data in order to increase their e-commerce business. But making use of such Big Data alone doesn’t add any value — enter data mining. Below you can find a discussion of the various analysis approaches involved in data mining, to give you an idea of how...

Terminal Servers – the Secret Behind Remote Hosts

Terminal servers: definition, basics, and advantages

In the days of mainframe computers and the first smaller networks, terminals were a crucial building block for sharing hardware and software resources. It is no coincidence that terminal servers – the central administrative entity of such networks – are in demand decades later, now that applications are to be made available to multiple users.

Allocating directory rights with chmod

What is chmod?

With Linux, access rights for directories and files are often set through the terminal where file owners can be defined and groups can be assigned. With the ‘chmod’ command, user classes can be assigned certain file rights. Access rights in the Unix file system can be changed in two different ways: symbolic or numeric. Find out more about both notation types here.

Tips for better website security

Website security: how to protect your web presence

Would you leave your window open at night if you knew there were intruders lurking about? Obviously the answer to this question is ‘no’. Many companies and individuals leave their virtual window open to cyber criminals by not adequately protecting their websites. Website security is an extremely important topic. Only by regularly carrying out security checks and following the proper precautions...

Protect sensitive data with a strong password

Optimal password protection: how to choose a strong password

It only takes a few seconds for a hacker to gain access to your private data without you having any idea. More often than not, a password is the only means of protection when logging into online services; and if it is too obvious, it will not prove too much of a challenge for criminals to crack. There are numerous options to increase password security.

What is a network attached storage (NAS)?

Network attached storage (NAS): the basics of network storage

Growing sums of data require cost-effective, high-performance storage solutions. One option for fulfilling this requirement is a network attached storage. In business contexts, this model has already established itself as a viable alternative to file servers, hard drives, and the cloud. Private users have also caught on and use NAS systems at home. But what is a NAS? Read on, and we’ll show you...

Deleting a Google result and protecting personal data

Deleting personal data with Google

The internet never forgets – is it always true? In some cases, search engines are obliged to grant users permission to delete defamatory search results. If Google displays personal data that is outdated or of no interest to the public, users can request the search engine to delete links to that data from the results pages permanently. But what exactly is the ‘Right to be Forgotten’ act, and when...

Replacing an SSL Certificate affected by Browser Distrust

Replacing SSL (Secure Socket Layer) Certificates affected by browser distrust

Due to browser community distrust in Symantec, Google Chrome and Mozilla Firefox have decided to distrust websites with SSL certificates issued by Symantec before December 1st, 2017. This article outlines the steps and important key dates that website operators need to be aware of in order to sucessfully renew or replace their SSL certificates before their website is branded with a warning...

Using SSH keys for your network connection

How to use SSH keys for your network connection

Operating and managing a remote server located in a data center is often carried out by using a secure network connection provided by the SSH protocol. The necessary registration on the server is preceded by an authentication process. Usually this occurs in the form of the username and password. Alternative methods such as the public key authentication used by SSH, do have their advantages. But...


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