Tutorials

Copying files and directories from one system to another system is a common task for any system administrator. SCP, also called secure copy, is a Linux command-line utility used to securely copy or transfer files from one server to another server. The SCP command allows you to copy a file or directory from a local system to a remote system, from a remote system to a local system, or between two remote systems from your local system.

When you use the SCP command, you will need to provide a remote user’s password before transferring a file. In this post, we will explain how to pass passwords to the SCP command in Linux.

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If you are working on Linux, then you may need to remove certain files and directories based on a set of predetermined requirements. Linux provides several tools to remove files and directories. Among them, the rm and rmdir are the most widely used commands to remove files and directories on Linux, macOS, and Unix-based operating systems.

In this post, we will show you how to remove files and directories in Linux.

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MongoDB is a free, open-source, and cross-platform document-oriented database system that uses JSON-like documents with optional schemas. It is written in C++ and used for developing modern dynamic apps. In MongoDB, data objects are stored as separate documents in a collection, unlike in traditional relational databases where rows and columns are used. It provides an aggregation framework and offers easy querying and indexing functionality that helps developers to query complex document-based data sets easily.

In this post, we will explain how to install and use MongoDB on Rocky Linux 8.

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The chown command stands for change owner is a Linux command-line tool used to change the file and directory ownership. In Linux, only root and admin users can access all files and directories in the file system. Each file and directory is associated with an owner and group owner. You can’t access any files that are owned by other users. In such a case, you will need to change the owner of the file to grant file access. The chown command allows you to grant read, write and execute level permission on files and directories.

In this post, we will show you how to use chown command in Linux.

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In Linux, each file and directory is associated with a user and group owner to decide which user and group can read, write and execute the file and directory. The chgrp command is used to change the group ownership of files and directories on Linux. Unlike the chown command, the chgrp command just requires you to specify a group name.

In this post, we will show you how to use the chgrp command in Linux for various system administration situations.

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SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are security protocols used to secure web traffic between the web server and the client’s web browser. Generally, they are used to protect confidential data such as credit card data, login credentials, and other private information. Unlike other types of SSL certificates, a self-signed SSL certificate is a certificate signed by an individual who owns it. Typically, self-signed SSL certificates are totally free and are used for testing purposes on the locally hosted web server.

In this post, we will show you how to generate a self-signed SSL certificate in Rocky Linux 8.

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