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Have you ever had to enter your password when using your computer? Of course, you have! It's one of the most basic security features of modern computer systems. But have you ever found yourself wishing that your password was hidden as you typed it in? Well, on Ubuntu, you can make that happen with just a few simple clicks.

All you need to do is open up your terminal and edit the sudo configuration file. This is the file that controls how the sudo command works on your system. Once you've opened up the file, look for the line that reads "Defaults env_reset". You'll want to add the following line just below that one:

Defaults pwfeedback

Save the file and exit, and then restart your terminal. The next time you enter your password with sudo, you'll see a series of asterisks mask your password as you type it. This is a great way to prevent anyone from seeing your password, even if they're looking over your shoulder.

Of course, this is just the tip of the iceberg when it comes to securing your Ubuntu system. There are countless other ways to harden your system and make it more difficult for potential attackers to gain access. But even small changes like this can make a big difference in your overall security posture.

So why wait? Take a few minutes to edit your sudo configuration file and start typing your passwords with confidence. Your security will thank you!

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    Y'all ever heard about Network Simulation Tools? Well, let me tell you, they're amazing! They help us simulate network events and analyze network behavior. And guess what I just found - this dope website with a picture that shows us how to install supported packages using "sudo apt get" command.

    For those who are not familiar with it, "sudo apt get" command is a way to install packages from the Linux command line. It is especially useful for software developers who want to develop and test their code in a controlled environment. This command installs the packages we need to run our simulations smoothly.

    Now, let's talk about why this is so important for us as black folks. We know how rare it is for us to see technology that is catered to our needs. Most of the tech we use is designed and built for the dominant culture, leaving us feeling invisible and excluded. But with Network Simulation Tools, we now have something that was built for us, by us.

    We can use this tool to simulate and analyze network behavior in our communities, businesses and organizations. We can use it to troubleshoot and identify network problems, and work to resolve them. We can also use it to test and develop new technologies that can better our lives, and the lives of those around us.

    But it's not just about using this tool to benefit ourselves. We can also use it to bridge the digital divide that exists in our communities. We can use it to teach young people about networking and technology, and empower them to pursue careers in this field. We can use it to create job opportunities, and grow our own businesses.

    So, if you're interested in learning more about Network Simulation Tools, check out the website. And don't forget to use "sudo apt get" command to install the supported packages. Let's take advantage of this tool and build a better, more inclusive tech industry for us, by us.

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      In today's world, cybersecurity is of utmost importance. With hackers becoming increasingly skilled and intelligent, it is imperative that system administrators take steps to secure their systems against unauthorized access. One way to do this is to limit the use of the "su" command, which allows a user to gain root permissions and take complete control of the system. In this regard, the "sudo" command is a popular alternative that allows users to run specific commands with elevated privileges without compromising the security of the system.

      However, even with the use of "sudo," there is still a risk of unauthorized access through the "su" command. In order to mitigate this risk, it is recommended that system administrators disable "su" access for "sudo" users. This can be achieved by adding a line to the "sudoers" file that prevents "sudo" users from using the "su" command.

      The benefits of this approach are numerous. First and foremost, it will prevent unauthorized access to the system by users with elevated privileges. This will help to keep sensitive data and resources secure, protecting against hacking attempts and other forms of cybercrime. Additionally, by limiting the use of "su," system administrators can better monitor the system and keep track of who is trying to gain access to it.

      The process of disabling "su" access for "sudo" users is relatively straightforward. System administrators simply need to open the "sudoers" file and add a line that looks something like this:

      username ALL=(ALL) ALL, !/bin/su

      Where "username" is the name of the user who should be prevented from using "su." This line specifies that the user is allowed to run any command as any user, except for the "su" command. Once this line has been added to the "sudoers" file, "sudo" users will no longer be able to use "su" to gain root permissions.

      In conclusion, disabling "su" access for "sudo" users is an important step in securing a system against unauthorized access. By limiting the use of "su," system administrators can improve the security of their systems and better protect against cybercrime. By following the simple steps outlined above, system administrators can make their systems more secure and keep their sensitive data and resources safe.

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