You are aware of “pwd” command, aren’t you? The pwd command (stands for Present Working Directory) is used to print the current working directory. What about “pwdx”? Have you ever used or heard of it? No? No problem! The pwdx command is to used report current working directory of a process. In this guide, we
Introduction When setting up cloud infrastructure, getting your applications up and running will often be your primary concern. However, making your applications function correctly without addressing the security needs of your infrastructure could have devastating consequences down the line, so it is worthwhile to consider this as part of your initial infrastructure setup. In this
Abbreviated as nmcli, the network manager command-line interface is a nifty and easy to use tool that saves you lots of time when you need to configure an IP address. To display all the active network interfaces on your Linux system execute the command. $ nmcli connection show OR $ nmcli con show Note that
This tutorial explains how to add, delete and grant Sudo privileges to users in Linux operating systems. The steps provided below are tested in Ubuntu 20.04 LTS edition. However, the steps are same on other distributions such as Arch Linux, Debian, Fedora, CentOS, RHEL, openSUSE etc. Before getting into the topic, let us see what
Relax-and-Recover (ReaR in short) is a simple yet powerful, easy-to-setup, full-featured and leading open-source bare metal disaster recovery and system migration solution, written in Bash. It is a modular and configurable framework with numerous ready-to-use workflows for common situations. ReaR creates a bootable rescue system and/or system backup in various formats. You can boot your
In this short quick article, you will learn how to find all clients (using their IP addressees) connected to an Apache or Nginx web server on HTTP or HTTPS ports on a Linux server. In Linux, every service running on the server listening to the socket for a client to make a connection request. Upon
The dmesg command lets you peer into the hidden world of the Linux startup processes. Review and monitor hardware device and driver messages from the kernel’s own ring buffer with “the fault finder’s friend.” How Linux’s Ring Buffer Works In Linux and Unix-like computers, booting and startup are two distinct phases of the sequence of events
In software terms, especially at the operating system level, a port is a logical construct that identifies a specific process/application or a type of network service and each network service running on a Linux system uses a particular protocol (the most common being the TCP (Transmission Control Protocol) and UDP (User Datagram Protocol)) and a
A while ago, we have written about Netdata, a lightweight, real-time performance and health monitoring tool for systems and applications. It monitors almost everything in a system and displays the result in a nice graphical layout in the web browser. Netdata requires no configuration and no dependencies either. It just works out of the box.
In this tutorial, I will show you how to set up a static IP address on a CentOS 8 server. I will show you three different ways to set up a static IP address by using nmcli, nmtui and by editing the interface configuration file directly. For this guide, we will set up a static
