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Docker is a platform that makes it easier to create, deploy, and use an application using containers. A container contains an application with all parts of it needed such as libraries and other dependencies, and ships it as one package. Instead of using dedicated resources like virtual machines, docker shares kernel, and other resources of the … Read more
Containerization is a process that encapsulates an application in a container with its own operating environment. It is a kind of lightweight alternative to full machine virtualization. The benefit of using the containers is that you can run the applications on any physical machine without worrying about dependencies. Ahead in this article, we will discuss … Read more
Docker image is an immutable file that is essentially a snapshot of a container. Images are created with build command, and they produce a container when started with the run command. Docker pulls these images from the docker hub. Docker hub maintains a registry because an image can become quite large, these are designed to be composed of … Read more
Docker is a platform that makes it easier to create, deploy, and use an application using containers. A container contains an application with all parts of it needed such as libraries and other dependencies, and ships it as one package. Instead of using dedicated resources like virtual machines, docker shares kernel, and other resources of … Read more
In Unix like operating systems, a process is a program in execution. The running time of a process means how long a process has been running on a system. There are different ways to determine the running time of processes in the Linux or Unix system for example by using an etime option with ps … Read more
FTP or File Transfer Protocol is a standard networking protocol used to transfer files between client and server. An FTP user may authenticate themselves by using username and a password. FTP is often secured with the SSL/TLS(FTPS) for the secure transmission of data or replaced with SSH File Transfer Protocol(SFTP). VSFTPD stands for “Very Secure … Read more
Apache Tomcat or simply Tomcat is a web server and servlet container that is used to serve Java applications. It provides a pure Java HTTP server environment to run these java applications. Tomcat is developed and maintained by the open community of developers and released under the Apache license. In this article, we will discuss … Read more
A system backup is a process in which the state, files, and data of a computer system are copied and stored somewhere. Later if primary data is corrupted, deleted, or lost then it can be used to recover the original data. For useful recovery, a backup must be created when the system is in a … Read more
A root user is a most privileged user account in a Unix based operating system. It has access to all the commands and files of the system. A root user is also called a superuser or administrator because it is needed to perform administrative tasks. It is used to perform tasks such as installing software, … Read more
Cron is a program that is used to automate a task in a Unix based operating system. It is basically a smart alarm clock for the system. When the alarm sounds the operating system runs the commands or script mentioned in the cron table. You can set this alarm clock to run at all sorts … Read more
