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Install Emacs Editor in Ubuntu 20.04 - How to perform it ?
This article covers methods to install Emacs editor in the Ubuntu 20.04 system. Emacs is a text editor designed for POSIX operating systems and available on Linux, BSD, macOS, Windows, and so on.
Emacs is an open-source, cross-platform editor that is highly customizable and provides a user-friendly interface to its users.
It Provide features like multiple editing modes, full Unicode support for scripts, text manipulation tools, and integration with numerous external tools like the shell and git clearly gives an indication of how powerful it is.
To Install Emacs on Linux:
You can check if your Linux system has emacs installed by simply running the following command:
$ emacs
If you get an error message such as "-bash: -bash:: command not found", then you need to install it.
To install the emacs packages, run the command:
$ yum install emacs
On Ubuntu, execute:
$ apt-get install emacs
To install Emacs using Snap on Ubuntu:
Execute the following command in the command line:
$ sudo snap install emacs --classic
Once this is done, you can find Emacs in your list of installed applications.
Install Pepper Flash on Ubuntu 20.04 - How to do it ?
This article covers how to install the Pepper Flash plugin for the Mozilla Firefox browser on Ubuntu 20.04. After the successful installation of this plugin, we can easily use it for enjoying feature-rich content while browsing.
We have also shared with you the method of removing this plugin from your system whenever you feel like it at the end of this guide.
How can I install Pepper Flash Player on Ubuntu?
How can I setup Flash Player for Chromium web browser on Ubuntu?
Pepper Flash Player is maintained by Google and is newer than Adobe Flash Player.
Pepper Flash Player can be used with Chromium web browser.
The Pepper Flash Player is available on the Canonical Partners Repository.
This repository is disabled by default on Ubuntu .
1. Enable it by running the command:
$ sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
2. Then, Update your package list after enabling the repository
$ sudo apt update
3. You can then install Pepper Flash Player in your Ubuntu 18.04 Desktop.
$ sudo apt -y install pepperflashplugin-nonfree
4. To update Pepperflash, use:
$ sudo update-pepperflashplugin-nonfree --install
5. After the installation of Pepper Flash Player on Ubuntu, make sure Flash is allowed to run in:
chrome://settings/content/flash
Install Mozilla Firefox on Ubuntu 20.04 - How to do it ?
This article covers how to install the Mozilla Firefox browser on the Ubuntu system. Mozilla Firefox is the official Internet browser for Ubuntu, therefore, most Ubuntu distros have it installed by default.
If your system lacks this browser due to any reason or if you have accidentally deleted it, we will tell you how to install it on your Ubuntu.
To update Firefox on Linux:
1. Click the menu button , click. Help and select About Firefox. On the menu bar click the Firefox menu and select About Firefox.
2. The About Mozilla Firefox Firefox window opens. Firefox will check for updates and download them automatically.
3. When the download is complete, click Restart to update Firefox.
To Delete Firefox and all it's data from Ubuntu:
1. run sudo apt-get purge firefox.
2. Delete /etc/firefox/ , this is where your preferences and user-profiles are stored.
3. Delete /usr/lib/firefox/ should it still be there.
4. Delete /usr/lib/firefox-addons/ should it still be there.
Install UrBackup Server and Client on Ubuntu 20.04 - How to do it ?
This article covers how to install and setup the UrBackup server on Ubuntu 20.04. Here, you will also learn how we can add a Linux host to be backed up.
The main reason for data backup is to save important files if a system crash or hard drive failure occurs, you will lose your data.
Therefore, a backup solution is much important for any data critical organization.
UrBackup is a free and powerful network backup solution for personal and enterprise. It has almost all features you need from a backup software. UrBackup supports Linux, Windows and Mac OS X.
Benefits of having UrBackup Server on your network are:
1. Centralized backup management
2. Supports multiple clients
3. Supports multiple simultaneous backups
4. Easy to restore
To Install client on Debian or Ubuntu:
1. Install the dependencies UrBackup needs: WxWidgets >= 2.9.0 On Debian/Ubuntu you can do that with apt or your favourite package manager:
$ apt install build-essential "g++" libwxgtk3.0-dev "libcrypto++-dev" libz-dev
2. Download the UrBackup client source files and extract them via e.g.
$ wget https://hndl.urbackup.org/Client/2.4.11/urbackup-client-2.4.11.tar.gz
$ tar xzf urbackup-client-2.4.11.tar.gz
3. Build the UrBackup client and install it:
$ cd urbackup-client-2.4.11
./configure
make -j4
sudo make install
4. Make sure that the UrBackup client backend runs correctly:
$ sudo urbackupclientbackend -v info
5. Start the UrBackup client backend on startup by adding it e.g. to rc.local:
$ sudo chmod +x /etc/rc.local
editor /etc/rc.local
Now add /usr/local/sbin/urbackupclientbackend -d before the exit 0.
6. Start the UrBackup client frontend and setup your paths by executing:
$ urbackupclientgui
and clicking on the tray icon and add paths. You can also do that on the server.
To Install UrBackup Client on Windows:
If you have a fully functioning UrBackup Server on Ubuntu, then you can install UrBackup client on client computers. For example, you can install UrBackup client on Windows 10.
1. Download UrBackup client for Windows 10: https://hndl.urbackup.org/Client/2.4.11/UrBackup%20Client%202.4.11.exe
2. After you install the client software on Windows 10, it will automatically search and connect to the UrBackup server.
3. You will see the client computer listed on your UrBackup web administration console.
4. There will be an UrBackup icon in your taskbar where you can do several things such as:
i. Change settings
ii. Add/remote backup path
iii. Change component to backup
iv. See the status
Use Picture-in-Picture Mode in Google Chrome - How to do it ?
This article covers how to enable Picture-in-Picture mode (PiP) in the Google Chrome browser on Ubuntu 20.04. Users need to know notice that in case if they close their browser window, it will also close the smaller window.
Also, you will learn how to disable the PiP mode in the Google Chrome browser.
How do I enable picture in picture on Chrome?
Here's how it works: open Chrome, go to a website that contains a video and play it fullscreen.
From there, press the Home button to go to your Android Home Screen and the playing video will automatically transition to Picture-in-Picture.
That's all!
What is picture in picture mode?
PIP is a special type of multi-window mode mostly used for video playback.
It lets the user watch a video in a small window pinned to a corner of the screen while navigating between apps or browsing content on the main screen.
Your app controls when the current activity enters PIP mode.
Assign Multiple IP Addresses to Single NIC in Linux Mint 20 - How to Do it ?
This article covers how to assign multiple IP addresses to a single interface in Mint OS. By following our guide carefully, you can either assign the IP address temporarily or permanently to your network interface.
NIC stands for network interface controller or network interface (controller) card. WNIC is wireless network interface controller or wireless network interface (controller) card. IP Addresses belong to network interfaces, not to the computer itself.
To Restart network service using command:
# systemctl restart network
To Verify the new IP address using command:
# ip addr
How configure multiple IP address in CentOS ?
Now, in order to add additional IP addresses you'll need to edit the configuration file (from hereon called “config file”) for this specific interface. On CentOS 7, the interface config files are located in /etc/sysconfig/network-scripts/ and they are all prefixed with ifcfg-.
How remove secondary IP address Linux?
To add or remove additional IP adresses and keep the configuration persistent, we need to Edit the corresponding /etc/sysconfig/network-scripts/ifcfg-eth[x] configuration file and add/remove as many additional IPADDR[n] and PREFIX[n] entries as additional IP addresses are required.
To configure a static IP address on CentOS / RHEL :
1. Create a file named /etc/sysconfig/network-scripts/ifcfg-eth0 as follows:
DEVICE=eth0.
BOOTPROTO=none.
ONBOOT=yes.
PREFIX=24.
IPADDR=your_ip_address
2. Restart network service: systemctl restart network.
How do I login as a different user in Linux?
To change to a different user and create a session as if the other user had logged in from a command prompt, type "su -" followed by a space and the target user's username. Type the target user's password when prompted.
What is Nmcli in Linux?
nmcli is a command-line tool which is used for controlling NetworkManager. nmcli commnad can also be used to display network device status, create, edit, activate/deactivate, and delete network connections. Typical Uses: Scripts: Instead of manually managing the network connections it utilize NetworkMaager via nmcli.
Difference between the output of ifconfig and ipconfig:
Functionality: The ipconfig command displays all the currently connected network interfaces whether they are active or not.
On the other hand, the ifconfig command displays only the enabled network interfaces that are connected to the system.
