Digital as well as Analog Systems, both are used to transmit signals from one place to another like audio/video. Digital systems use binary format as 0 and 1, whereas analog systems use electronic pulses with varying magnitude to send data. Read through this article to find out more about digital and analog systems and how they are different from each other. What is a Digital System? A system of components like a computer which uses discrete time signals to operate is called a digital system. Digital systems uses such signals that have square shaped waveforms. Digital systems first accept the ... Read More

A Server is a central place where information and programs are stored and accessed by applications over the network. A Web Server is a server which accepts a request for data and sends the relevant document in return, whereas an Application Server contains an EJB container component as well to run the enterprise applications. In this article, we will discuss the important differences between web server and application server. But before that, let’s have a look into their basics so that it will be easy to understand the differences. What is a Web Server? A Web Server is ... Read More

In this article, we will learn how to setup TLS/SSL certificates using the “Let’s Encrypt” on Ubuntu server with Apache as a web server, we shall also cover how to automate the certificate renewal using corn jobs.PrerequisitesTo complete this demo we needed to have the below requirementsAn Ubuntu server with a user with sudo permissions.Apache server installed on it with a proper domain name configured.Installing the Dependencies on ServerWe needed to update the server using the below command and install the git to get the Let’s Encrypt client from the repository.$ sudo apt-get update$ sudo apt-get install gitDownload the Let’s ... Read More

Most web servers have their own set of size limits on HTTP request headers. The HTTP Header values are restricted by server implementations. The following are the limits of some of the most popular web servers −Web ServerSize LimitApache8KNginx4K-8KIIS8K-16KTomcat8K – 48KIf the header size exceeds the above limit, the server returns 413 Entity Too Large error.

This limitation is for Visual Studio. You would require writing separate queries to get different columns and combine the output by comparing common columns.