SSL

Sign e-mails with a digital signature

Spam e-mails may be annoying, but they’re mostly harmless. What’s more problematic is phishing – a technique whereby fraudsters try to con you by posing as trustworthy sender addresses in an attempt to get hold of sensitive data. These messages appear genuine too, because without a digital signature, it’s very easy to assume a trusted identity online. In order to protect customers and their own [...]   

Using SSH keys for your network connection

Operating and managing a remote server located in a data centre 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 [...]   

ERR_SSL_PROTOCOL_ERROR: the best solutions

Chrome is the world’s most widely-used internet browser. The application scores points not only when it comes to security and speed, but also with its features such as cross-device synchronisation of user data. But errors can occur even when surfing with Google’s wonder weapon. These can lead to the browser crashing or prevent certain pages from being accessed. The error message [...]   

E-mail etiquette: rules for the perfect e-mail

Every day, over 200 billion e-mails are sent around the world – although many of them aren’t received with much enthusiasm. In order for your business e-mails to stand out in all this chaos, you should pay attention to e-mail etiquette. If you stick to the most important rules, your e-mails will appear polite, but at the same time, serious. Messages like these will be happily answered.   

E-Mail encryption with PGP

Online privacy is a sensitive issue that affects experts and amateurs alike. Whether you’re posting on social networks, carrying out banking transactions, or buying from an online store, your data is not always sufficiently protected. The same applies to e-mails. Don’t let cyber criminals get their hands on your content by encrypting your e-mails.   

Password managers: an overview of today’s best tools

Would you give your account number to a stranger? Most probably not. But millions of internet users may as well be giving away their personal data (and money!) when using passwords that hackers can crack in a matter of seconds. Password managers provide methods for creating and managing truly secure passwords.   

SSL stripping – how to protect your web project

Data transmission via SSL/TLS is one of the most effective means to give a web project more security. Even before packets are sent, powerful algorithms ensure the encryption of the information. If third parties capture the data on the transmission path, the true content remains hidden from them. However, it becomes problematic if attackers are active with their tools before the encryption process [...]   

Tips for better website security

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 [...]   

Securing servers with Fail2ban

For server operators, security is of the utmost importance. Only those who have developed and set up a foolproof defence strategy are ready for drastic situations. As well as regular protection mechanisms, like security software, backups, and encryption, there are also some useful tools and frameworks that may come in handy in the fight against intruders. We have laid out the essential details on [...]   

What is a server? One term, two definitions

When talking about web hosting, it is impossible to avoid the term ‘server’. So what is a server? And how does it work? In IT, there are actually two definitions of the term. The traditional server is the software for network services, but more recently the word has also been used to describe the corresponding hardware used to carry out server programs. Here is our overview of the most common [...]