How to enable/disable firewall on Ubuntu 20.04 LTS Focal Fossa

How to enable/disable firewall on Ubuntu 20.04 LTS Focal Fossa Linux

The default Ubuntu firewall is ufw, which is an acronym for “uncomplicated firewall.” It comes automatically installed on all editions of Ubuntu Desktop and Ubuntu Server. Ufw is a frontend for the typical Linux iptables commands, but it is developed in such a way that basic firewall tasks can be performed without the knowledge of iptables. You may find you need to disable ufw if it is blocking some necessary connections, or you can enable it for increased security.

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How to check NVIDIA driver version on Linux

How to check NVIDIA driver version on your Linux system

The objective of this tutorial is to show how to check the NVIDIA driver version installed on your Linux system. There are few places you may have a look to check what NVIDIA driver you have installed on your Linux system. This will allow you to check that you have the latest version installed and optionally upgrade to a new NVIDIA driver for better support and features.

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Ubuntu 20.04 Download

Ubuntu 20.04 Download

In this tutorial, you will learn where to download and how to download Ubuntu 20.04 LTS ISO image for Ubuntu, Kubuntu, Ubuntu Budgie, Ubuntu Studio, Xubuntu, Lubuntu, Kylin desktops and Ubuntu 20.04 Server. Additionally, you can download server preinstalled images for Raspberry Pi and various other architectures. Lastly, hypervisor cloud images such as Azure, Vagrant, KVM or VirtualBox are also available for download.

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Netplan static ip on Ubuntu configuration

Netplan static IP on Ubuntu configuration

In this tutorial, we will discuss a netplan static IP configuration on Ubuntu Linux. Netplan allows for straightforward network IP address configuration using human-readable data-serialization language YAML. The article will also discuss a default Netplan network settings and the location of the Netplan configuration file.

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Identifying the CentOS Release version

How to check CentOS version

The purpose of this tutorial is to show how to check the CentOS version of your Linux system. It’s possible to do this from either command line or GUI, so you can use whichever method is more convenient for you. Classic CentOS is nearing its end of life and will be replaced by CentOS Stream. Knowing your CentOS version will give you some insight into how long your system will continue to be supported.

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Remove or substitute space within a file name

Remove or substitute space within a file name

The purpose of this tutorial is to show various methods on how to remove or substitute spaces within a file name. Some tools on a Linux system may not work properly with files that contain spaces, which would give some users motivation to replace the white space with underscores or just delete them completely, for example. Manipulating files without white space is much easier, as you do not have to worry about escaping the file name each time. In this tutorial, you will see how to remove or substitute the spaces in file names in Linux.

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Instant privacy with tor, privoxy and docker

Instant privacy with tor, privoxy and docker

We have created a Docker container linuxconfig/instantprivacy that you can deploy for instant privacy. It utilizes Tor (anonymity network) and Privoxy (non-caching web-proxy) to deliver instant privacy, and is based on GNU/Linux Debian 11 Bullseye. We’re also open to feedback or feature requests that you would like to see in the container. In this tutorial, we will explain how Tor and Privoxy combine to make your web browsing private, and how to download and run the instant-privacy Docker container.

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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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How to install jdownloader on Ubuntu/Debian Linux

How to install jdownloader on Ubuntu/Debian Linux

The jDownloader application allows you to download files from many links simultaneously. It comes with handy features like pausing and resuming downloads, extracting contents from compressed archvies automatically, and setting maximum bandwidth usage, among other things to help you manage all of your downloads. It is an open source tool available for Linux systems and will make bulk downloading much easier for you.

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