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Install YakYak on Ubuntu 20.04 - Step by Step Process ?

This article covers how to install Google Hangouts on the Ubuntu 20.04 system. Users can use YakYak to install the Google Hangouts application on their Linux systems. Basically, go through this guide to install YakYak on your Linux System.

YakYak is a free, open-source Google Hangouts client that works on Windows, macOS and (hurrah) Linux desktops.


To Install yakyak – Google Hangouts on Ubuntu / Debian:

1. Download and install the downloaded package.

$ sudo apt update
$ sudo apt-get -y install wget
$ wget https://github.com/yakyak/yakyak/releases/download/v${VER}/yakyak-${VER}-linux-amd64.deb

2. If you're running a 32-bit system, download.

$ wget https://github.com/yakyak/yakyak/releases/download/v${VER}/yakyak-${VER}-linux-i386.deb

3. Install the package using dpkg command line tool.

$ sudo dpkg -i yakyak-${VER}-linux-amd64.deb

or

$ sudo dpkg -i yakyak-${VER}-linux-i386.deb


To Install yakyak – Google Hangouts on CentOS / Fedora / RHEL:

1. For RHEL family line of distributions, you need to download and install from an rpm package.

$ sudo yum -y install wget
$ wget https://github.com/yakyak/yakyak/releases/download/v${VER}/yakyak-${VER}-linux-x86_64.rpm

2. For 32-bit system, get,

$ wget https://github.com/yakyak/yakyak/releases/download/v${VER}/yakyak-${VER}-linux-i386.rpm

3. After the download, install the package using rpm -Uvh

$ sudo rpm -ivh yakyak-${VER}-linux-x86_64.rpm

or for 32-bit:

$ sudo rpm -ivh yakyak-${VER}-linux-i386.rpm

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Install Nmap on Ubuntu 20.04 - Step by Step Process ?

This article covers different methods to install Nmap on Ubuntu. If you want to learn how to use nmap, visit our guide on 15 Mostly Used Nmap Commands for Scanning Remote Hosts .

Nmap works by sending data packets on a specific target (by IP) and by interpreting the incoming packets to determine what posts are open/closed, what services are running on the scanned system, whether firewalls or filters are set up and enabled, and finally what operating system is running.


To install Nmap on Ubuntu:

1. Make sure the software packages on your Ubuntu system are up-to-date with the command:

$ sudo apt-get update

2. To install NMAP on Ubuntu, run the command:

$ sudo apt-get install nmap

The system prompts you to confirm and continue by typing y and pressing Enter.

3. To verify the installation was successful and to determine the current version of Nmap:

$ nmap --version

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Wall Command in Linux with Examples - Learn Now

This article covers how Wall command works in Linux. Wall is a handy utility that helps a multi-user system admin to quickly notify other users to save their work before a system shutdown or reboots. 

Here, you will see some examples of how to use the wall command to communicate with logged-in users.

There are times when multiple users are logged in to a server computer, and you - the system/network admin - need to, say, restart the server to perform some maintenance task. 

Of course, the correct way is to inform all those who are logged in about the maintenance activity.

In Linux, there is a built in command line utility for this purpose called Wall.


What is wall command in Linux ?

As already mentioned, the wall command is used to send a message to all logged in users. 

It's syntax is:

$ wall [-n] [-t TIMEOUT] [file]


How to use wall command?

Basic usage is very straight forward - just execute the 'wall' command and write the message you want to transmit on the standard input. 

Once done, use the Ctrl+D key combination to signal the command that you're done writing the message: 

$ wall


How to remove header from broadcasted message?

In case you want to remove the header that appears with the broadcasted messages, you can do that using the -n command line option:

$ wall -n

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Undo the Last Commit in Git - Step by Step Process ?

This article covers how to use the git reset command to undo the last commit in Git. 


To Undo the Last Commit:

The "reset" command is your best friend:

$ git reset --soft HEAD~1

Reset will rewind your current HEAD branch to the specified revision. Here, our goal is to return to the one before the current revision - effectively making our last commit undone.


To Undo Last Commit with revert:

In order to revert the last Git commit, use the "git revert" and specify the commit to be reverted which is "HEAD" for the last commit of your history.

$ git revert HEAD

The "git revert" command is slightly different from the "git reset" command because it will record a new commit with the changes introduced by reverting the last commit.

As a consequence, you will have to commit the changes again for the files to be reverted and for the commit to be undone.

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Zoom Video Filters not Available in Linux ?

This article covers methods to fix Zoom Video Filters not Available in Linux.

Zoom Video Filters turned ON but no filters available

just close zoom and login when you reopen it. problem solved.

You need to sign up for a free account on Zoom to use video filters.


How to get video filters on Zoom?

Here are the steps to add video filters on Zoom:

1. Click on your profile picture which can be found in the top-right corner of the screen.

2. Click on the 'Settings' option from the dropdown menu.

3. From the Settings menu, click on the 'Video' tab which is the second option.

4. Here, you need to look for an option labelled 'Touch up my appearance'. You need to enable this feature by checking the box besides the option.


How to resolve Zoom video filters not showing ?

Several users on social media have been reporting that they are unable to view the Zoom filters on their computer. 

If you are one of the users facing this issue, you should note that you may not be able to see the filter if you are accessing the service using a web browser. 

You will need to install the latest version of Zoom desktop client on your system and sign in to view the filters.

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Reset MySQL Root Password on Red Hat Enterprise Linux 8 - Step by Step Process ?

This article covers how to reset or change your MySQL root password on Red Hat Enterprise Linux 8.

MySQL is an open source relational database management system (RDBMS) with a client-server model for creating and managing databases based on a relational model.


To Reset the MySQL root password:

You must run the commands in the following steps as the root user. 

Therefore, you can either log in directly as the root user (which is not recommended for security reasons), or use the su or sudo commands to run the commands as the root user.

To reset the root password for MySQL, follow these steps:

1. Log in to your account using SSH.

2. Stop the MySQL server using the appropriate command for your Linux distribution:

For CentOS and Fedora, type:

$ service mysqld stop

For Debian and Ubuntu, type:

$ service mysql stop

3. Restart the MySQL server with the —skip-grant-tables option. To do this, type the following command:

$ mysqld_safe --skip-grant-tables &

4. Log into MySQL using the following command:

$ mysql

5. At the mysql> prompt, reset the password. To do this, type the following command, replacing new-password with the new root password:

UPDATE mysql.user SET Password=PASSWORD('new-password') WHERE User='root';

6. At the mysql> prompt, type the following commands:

FLUSH PRIVILEGES;
exit;

7. Stop the MySQL server using the following command.

You will be prompted to enter the new MySQL root password before the MySQL server shuts down:

$ mysqladmin -u root -p shutdown

8. Start the MySQL server normally. To do this, type the appropriate command for your Linux distribution:

For CentOS and Fedora, type:

$ service mysqld start

For Debian and Ubuntu, type:

$ service mysql start

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