Drupal is a free and open-source content management system (CMS). A CMS is a software that allows you to manage a website's content. This will enable users to develop the site without systematically resorting to a programmer. Drupal is a tool that is not only for beginners but also for expert programmers. Its flexibility allows it to meet the vast majority of market needs: institutional sites, blogs, directories, community sites, merchants, or intranets; everything is possible.

What is Drupal used for?

Drupal is primarily designed to be used for content management; however, it is a notion that is abbreviated by the term CMS in English. This acronym refers to a software program generally intended to manage a website. The software, therefore, makes it easy for a user to use. The latter can use his site without the need for a programmer.

What is unique about Drupal?

One of the particularities of Drupal is the possibility for modules to interact with each other. The counterpart of this flexibility is complexity, so Drupal often offers one or more solutions to solve the same problem. On the other hand, sometimes the most challenging part is finding "the" module that will best suit your needs. Another feature distinguishing Drupal from other CMS is that the site and its administration interface are intimately linked: administrators edit their content in the same graphical context as the visitor. This feature can be confusing at first, but is productive and intuitive.

The advantages of Drupal

  •  Drupal is famous: a large community and therefore helps. Someone will have done whatever you require before and will be there to help you—quality: A professional tool used by major sites such as the White House.
  • Drupal is powerful: A tool more powerful than its competitors to realize all your needs.
  •  It is secure: Because it is open source and widely used in the professional world, its code is constantly reviewed and improved. The regular updates make it reactive to the correction of possible bugs.

The disadvantages of Drupal

  • Burdensome: its flexibility and scalability sometimes make it a bit heavy and resource-intensive. It may, therefore, not be suitable for some "low-end" free hosting plans or be "overkill" for building a simple blog, for which a competitor like WordPress will be preferred.
  • Slowness: due to its extreme modularity, the installation of sometimes poorly optimized modules can make Drupal slower than the average of its competitors. This shortcoming can therefore be overcome by a correct and appropriate configuration of various optimization mechanisms that we will see on this site.
  •  Knowledge: a longer learning curve than its competitors due to the concepts' power.

How to start using Drupal?

Before creating your Drupal site, you should look at the permissions granted to your future users. The content management system allows you to create custom user groups, for which you can define a whole set of permissions.

Let's encrypt

Let's Encrypt is a Certification Authority (Certification Authority abbreviated CA) issuing free Domain Validated certificates (Domain Validated abbreviated DV) for a period of 90 days. Let's Encrypt owns an RSA root certificate stored on a hardware security module that is not used directly. However, this certificate is intended to be replaced later by an ECDSA certificate which will be used to sign two intermediate certificates signed by the certificate authority IdenTrust. One of them will be used to sign the issued certificates, the other as a backup certificate in case of a problem with the first one.

What is Let's Encrypt used for?

Let's Encrypt is a Certificate Authority, and they have more or less the same privileges and powers as every other existing (and larger) Certificate Authority on the market.

What is special about Let's Encrypt?

Let's Encrypt is a free non-profit service provided by the Internet Security Research Group to promote web security by providing free SSL certificates

The advantages of Let's Encrypt

Among the advantages, we can mention that it is:
  • Free: Anyone with a domain name can use Let's Encrypt to obtain a recognized certificate at no cost.
  • It's automatic: it's software that runs on a web server that can interact with Let's Encrypt to easily obtain a certificate, securely configure it for use, and automatically support renewal.
  • Secure: Let's Encrypt serves as a platform to advance TLS security best practices, both on the CA side and to help website managers properly secure their servers.
  • Transparent: All certificates issued or rejected will be publicly recorded and available for inspection by anyone.
  • Open: The issuance and even auto-renewal protocol will be published as an open standard that others can adopt.
  • Cooperative: Like the underlying Internet protocols themselves, Let's Encrypt is thus a joint effort for the benefit of the community, even beyond the control of any one organization.

Disadvantages of Let's Encrypt

Today, the main disadvantage of using a Let's Encrypt certificate is compatibility. This is thus a problem that any new certificate authority must face when approaching the market. Thus, for a certificate to be trusted, it must first be signed by a certificate belonging to a trusted certificate authority. To be trustworthy, a certification authority must therefore have the signing certificate integrated into the browser or the operating system. A certificate authority that enters the market today, even assuming that it is trusted by the root certificate program of each browser or operating system from day 0, which is by the way impossible, will be thus included in the current versions of the various browsers or operating systems. However, they cannot be included in older (and already released) versions.

How do I start using Let's Encrypt?

To start using Let's Encrypt, we first go to the DSM Security config. There, choose Certificates, then create a certificate. So choose to create a new certificate. Then enter a description, select the option to acquire a Let's Encrypt certificate, and set the use of this default certificate. For example, to enable HTTPS on your website, you must obtain a certificate (a particular file) from a certification authority (CA or CA for Certificate Authority in English). Let's Encrypt being a certificate authority. In order to obtain a certificate for your website's domain through Let's Encrypt, you must prove that you control that domain. With Let's Encrypt, you do this by using software using the ACME protocol, which generally runs at your host. To determine which method will work best for you, you will need to know if you have shell access (also known as SSH access) to your hosting. If you manage your site entirely through a control panel like cPanel, Plesk, or even WordPress, chances are you don't have shell access. You can ask your host to be sure in this case.


PayPal is an online payment service that allows you to pay for goods, receive payments, or even send and receive money. It is the undisputed world leader in online payment. This bank belongs to the leading eBay group. And generally allows you to send and receive payments online. PayPal is therefore an issuer of electronic money and not a bank, and therefore does not offer bank cards, remunerated accounts, or other financial services.

What is PayPal used for?

PayPal is an American company used to offer online payment service systems worldwide. The platform also serves as an alternative to payment by check or credit card. The site operates here as a payment method for e-commerce sites, auctions and other commercial uses for which they receive a fee in exchange for profit such as a one-click transaction and a registration of a password. The PayPal payment system, which is also called PayPal, is therefore considered to be a payment platform.

What is special about PayPal?

PayPal has the particularity of helping to protect your credit card information thanks to the best systems on the market for security and fraud prevention. When you use PayPal, your financial information is never communicated to the merchant, this is one of the peculiarities of PayPal.

The benefits of PayPal

The advantages of PayPal are numerous and diverse, we can mention:
  • Secured.
  • No charges.
  • You don't need to insert your credit card number on suspicious sites.
  • PayPal is used both on PayPal and several other merchant sites such as Cdiscount for example.
  • If you do not receive your item after paying by PayPal, you are automatically refunded.
  • By using PayPal, you receive your money directly and do not waste time with unnecessary trips to the bank.

The disadvantages of PayPal

PayPal not only has advantages, it also has several disadvantages including:
  • Using PayPal may seem incomprehensible at first.
  • If your password is stolen, anyone will be able to make purchases without your permission. It is therefore essential to choose a fairly complicated and non-intuitive password.
  • Another of the disadvantages not to be overlooked: these are the fees and commissions charged if you do not pay in euros or if you do not make purchases in the EEA, this unlike a credit card which is theoretically accepted everywhere

How do I start using PayPal?

Creating a PayPal account is done in a few minutes and very simple. All you have to do is enter your contact details and your credit card number. So, in this way, you will never have to indicate it again. Once the PayPal account is created, just browse eBay looking for the products that suit you. If any of them interest you, it will be enough to bid or make a purchase immediately. Finally, to pay, you will need to connect to PayPal and click on the payment validation button. Thus, your credit card will be debited without you even needing to bother to insert the codes.

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