Ubuntu Static IP configuration

Ubuntu Static IP configuration

This tutorial will deal with Ubuntu static IP address configuration. It will provide the reader with a step by step procedure how to set static IP address on Ubuntu Server via netplan and Ubuntu Desktop using NetworkManager. Static IP address is recommended for servers as the static address does not change as oppose to a dynamic IP address assignment via DHCP server.

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QEMU vs VirtualBox: What's the difference?

QEMU vs VirtualBox: What’s the difference?

Virtualization is a helpful technology that has exploded in popularity and accessibility in the last decade. There are many great reasons to use virtual machines, such as having a test environment separate from your host operating system. It also allows you to run multiple operating systems or Linux distros simultaneously – all inside of their own sandboxed environment, with optional network interconnectivity among your machines.

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QEMU vs KVM hypervisor: What's the difference?

QEMU vs KVM hypervisor: What’s the difference?

Users have a lot of choices when it comes to virtualization on a Linux system. There are many use cases for virtualization, whether you want to have a test system that is isolated from your host system, test out a different Linux distribution, or even run a completely different operating system. Whatever the case may be, you will need to have a hypervisor. A hypervisor is what manages and allows you to interact with your virtual machines.

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How to obtain Linux’s system load average report

How to obtain Linux’s system load average report

Obtaining the load average of your server(s) will shed some light on the system’s CPU usage over time. As a Linux system administrator, it is essential to obtain the load average occasionally, as to determine whether or not your systems are overwhelmed by trying to handle the current work load. Because of the way load averages are reported, it is also easy to determine if the server is being overloaded, which may mean it is time to divide up the work load across load balancing servers, or upgrade your current hardware.

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Yocto Linux: Tutorial Basics

Yocto Linux: Tutorial Basics

The Yocto Project allows users to create custom Linux distributions for emedded and IoT software. It is an open source project, calloborated on by the Linux foundation and other big names in the tech industry. Its big advantage is that it can work on a variety of architectures including some that are not as mainstream or widespread, like ARM, MIPS, PowerPC, x86, and x86-64.

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Best System Monitoring tool for Linux

Best System Monitoring tool for Linux

System monitoring tools allow users and administrators to keep tabs on CPU and memory usage, storage availability, hardware temperatures, network activity, and other helpful information on a Linux system. Your system will not always let you know what it is doing, so keeping an eye on this information can give you insight into what it is doing behind the scenes. In this tutorial, we have compiled a list of our favorite system monitoring tools for Linux. Check out our picks below to find one that suits you best.

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Linux IP forwarding

Linux IP forwarding – How to Disable/Enable using net.ipv4.ip_forward

It may be necessary to configure Linux IP forwarding on a Linux system in certain scenarios. If the Linux server is acting as a firewall, router, or NAT device, it will need to be capable of forwarding packets that are meant for other destinations (other than itself). Linux uses the net.ipv4.ip_forward kernel variable to toggle this setting on or off.

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Change IP address on Ubuntu Server

Change IP address on Ubuntu Server

You have two options when configuring the IP address on your Ubuntu Server, and that is either a static IP address or DHCP. A static IP address allows you to manually select your IP address by configuring it on the Linux system, whereas DHCP relies on the router or DHCP server to lease you an IP address – either a reserved one or the next available one that is currently free, depending on the setup.

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Enable .htaccess on Apache 2 Linux Server

Enable .htaccess on Apache 2 Linux Server

When using the Apache web server, .htaccess files (also called “distributed configuration files”) are used to specify configuration on a per-directory basis, or more generally to modify the behavior of the Apache web server without having to access virtual hosts files directly (this is usually impossible for example, on shared hosts). For these .htaccess files to have any effect, we must first enable the pertinent setting in the Apache configuration.

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Using Linux without GUI

Using Linux without GUI

A GUI is only a supplemental component of a Linux system, and is not essential. Many System Administrators will elect to keep their servers as command line only, as a GUI is completely unnecessary for running a plethora of different services. Everyday users, however, will usually want a GUI to perform basic functions like web browsing, watching videos, etc.

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sudo command not found - Solution

sudo command not found – Solution

If you have tried to run the sudo command on your Linux system and are greeted with a sudo command not found error, we have the solution for you. This error most commonly occurs on minimal installs, such as in Docker or on a VPS (virtual private server), and can happen on any Linux distro, like Ubuntu Linux and Debian . In this tutorial, we will show you how to resolve the error and give you the ability to run sudo commands without error.

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