Linux is a powerful, open-source operating system known for its stability, security, and flexibility, widely used in servers, development, and embedded systems
SSH stands for Secure Shell and it is used to securely communicate between two host machines over an insecure network. It can be used for file transfer, accessing a remote machine application tunneling. Basically, SSH is the Linux equivalent for Windows Remote Desktop Protocol. For SSH to work, you need to have Openssh installed on…
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Cockpit is a web-based app/interface that is used to administer and monitor servers and system resources. Two very fantastic things about cockpit is that: a) it has no locked-in feature, meaning you can use it alongside other similar tools b) when it is idle or not in use, it uses no memory neither does it…
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Repositories can be defined as a box where your work tools are kept. It is a store for packages/applications/software that enhance your Linux experience. There are repositories you can access online, however, within your Linux OS DVD is a rich repository that you do not require internet access to use. This tutorial will work you…
Suppose you have an up and running Linux server and you have a need for a new partition, here is an easy way to do that from the command line. For this demonstration, I am using a CentOS. Read on to learn how to add a new partition to an existing Linux server. Here is…
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Cryptsetup is a utility used to conveniently set up disk encryption based on the DMCrypt kernel module. These include plain dm-crypt volumes, LUKS volumes, loop-AES, TrueCrypt (including VeraCrypt extension), and BitLocker formats. LUKS is the standard for Linux hard disk encryption. By providing a standard on-disk-format, it does not only facilitate compatibility among distributions but…
SSHF provides a secure way to access remote machines on the fly via the Secure Shell File Transfer Protocol (SFTP). It stands for Secure Shell File System and it is a software developed for use on Linux distributions. HOW TO USE SSHFS 1: Download and install the fuse-sshfs package Furthermore, The SSHFS package is not…
In this article, you will learn how to Create a Bootable USB Drive Using dd Command on Linux. As a server administrator who wants to run an operating system directly or install a new operating system. You will need a bootable USB drive. And as you know the CLI is more powerful than the GUI,…
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![[MAILX ERROR: STATUS=BOUNCED] Fixing Mailx error when sending emails from Command line](https://techdirectarchive.com/wp-content/uploads/2020/09/mailx.png)
Mailx is an intelligent mail processing system, which has a command syntax reminiscent of ed(1) with lines replaced by messages. It is based on Berkeley Mail 8.1, is intended to provide the functionality of the POSIX mailx command, and offers extensions for MIME, IMAP, POP3, SMTP, and S/MIME. In this article, we will learn how to fix “[MAILX ERROR: STATUS=BOUNCED]…
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Security-Enhanced Linux (SELinux) is a security architecture for Linux systems that allows administrators to have more control over who can access the system. It was originally developed by the United States National Security Agency (NSA) as a series of patches to the Linux kernel using Linux Security Modules (LSM). In Linux, file permissions have been…
In this article, we will discuss how to install and configure Jitsi video conferencing server on Ubuntu. Jitsi is a free open-source multi-platform voice, videoconferencing, and instant messaging applications for the web platform, Windows, Linux, macOS, etc. This application is similar to Cisco Meet, Google Meet, and Zoom video conferencing. You may also be interested…
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If you are unable to generate an SSL certificate with Let’s Encrypt on Ubuntu 20.04, follow the steps below. See this post where the error occurred “Video Conferencing Server: How to install and configure Jitsi on Ubuntu“. Solution: Here are some solutions that helped in resolving this issue– 1: If you get the package python-virtualenv…
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Mattermost is designed as an internal chat tool for organizations and markets itself as an open-source alternative to Slack and Microsoft Teams. The new feature release offers integration with enterprise tools such as Office 365 and Active Directory and an improved end-user experience for search and session management. Mattermost provides various features including file sharing,…
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Mattermost is an enterprise grade, instant messaging platform, an open-source self-hosted Slack alternative. It is written in Golang and React and can use MySQL or PostgreSQL as a database backend. Mattermost brings all your team communication into one place and provides various features including file sharing, one-on-one and group messaging, custom emojis, video calls and…
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