Archive

How To Use Firewall GUI In Ubuntu Linux

Firewall GUI


Linux is the best-known and most-used open-source operating system. As an operating system,

Linux is software that sits underneath all of the other software on a computer, receiving requests

from those programs and relaying these requests to the computer’s hardware.

A Linux distribution is a selection of coordinated software around the Linux kernel, which in some

cases is also a more or less adapted distribution kernel that is usually maintained in close

coordination with Upstream itself.

In computing, a firewall is a network security system that monitors and controls the incoming and

outgoing network traffic based on predetermined security rules. A firewall typically establishes a

barrier between a trusted network and an untrusted network, such as the Internet.

Requirements

    • Root privileges
    • Terminal

Steps to Install Firewall GUI

    • ★ Type the following command: sudo apt install gufw
    • ★ Type Your Password and Press Enter.

 

 

How to Use

 

    • Open Firewall GUFW GUI From your app lists.

 

 

    • The firewall automatically sets the incoming connections to ” Deny ” and the outgoing connections to ” Allow “.
    • if you are operating a server. Set the status to ” ON ” by clicking the slider.

 

Firewall GUI

 

    • Then click the ” + ” below to create a rule. 

 

Firewall GUI

 

    • Now Click On Simple Method

 

 

    • Select your Desired Name and then Set Policy, Direction, Protocol, And Port.

 

Firewall GUI

 

    • Select a service or program for which connections should be allowed or denied. Once the rule has been created, click on ” Add “.
    • Check the status of the firewall in the overview. Here you can also choose from the ” Report ” and ” Protocol ” tabs.
    • Finally, you can see your settings in Rules Overview.

 

Firewall GUI

How To Open Or Block Port In Ubuntu Linux Firewall

port in ubuntu


Linux is the best-known and most-used open-source operating system. As an operating system,

Linux is software that sits underneath all of the other software on a computer, receiving requests

from those programs and relaying these requests to the computer’s hardware.

A Linux distribution is a selection of coordinated software around the Linux kernel, which in some

cases is also a more or less adapted distribution kernel that is usually maintained in close

coordination with Upstream itself.

In computing, a firewall is a network security system that monitors and controls the incoming and

outgoing network traffic based on predetermined security rules. A firewall typically establishes a

barrier between a trusted network and an untrusted network, such as the Internet.

Requirements

    • Root privileges
    • UFW

Check the current status of the firewall in ubuntu

 

    • Type the following command: sudo ufw status verbose
    • Type Your Password and Press Enter.

 

 

    • Output Results will show you UFW Status is Active or Inactive.

 

 

    • If Output results are Inactive then you need to activate the UFW. Type the following command: sudo ufw enable. This will enable firewall and now you can open or block any port in ubuntu.

 

 

How To Open a TCP port in Ubuntu?

 

    • To allow incoming TCP Port, Type the following command: sudo ufw allow (port)/tcp
    • For example, To allow incoming TCP packets on port 22, enter: sudo ufw allow 22/tcp

 

 

    • Let’s check the configuration, Type the following command: sudo ufw status verbose

 

port in ubuntu

How To Deny/Block port access in Ubuntu?

    • To deny TCP Port, Type the following command: sudo ufw deny (port)/tcp
    • For example, To deny TCP packets on port 22, enter: sudo ufw deny 22/tcp
    • Let’s check the configuration, Type the following command: sudo ufw status verbose

 

port in ubuntu

 


 

How to Clear the Cache in Google Chrome

Google Chrome is a web browser from the US company Google LLC. It has been the most widely

used browser in the world since May 2012. Google publishes large parts of the Google Chrome

source code in the Chromium open source project. A free web browser developed by Google from the open-source Small Chromium iconChromium project with a focus on speed and minimalism. Chrome offers fast

start-up and web page loading, supports a minimalist user interface, automatically updates in the

background, and offers syncing of browser bookmarks, extensions, passwords, and history between

multiple computers by your Google account.


Additionally, Chrome has PDF support built into the browser for better speed and security.

Chrome Web Apps and Extensions are available on Small Chrome Web Store iconChrome Web Store.

 

You need to clear the Google Chrome cache every once in a while. The Chrome cache pre-stores files like images and

web pages that sit on your hard drive for faster access if you were to visit the same pages again or pages that have the

same components. Having this data on the hard drive can be a privacy issue for some people. Here’s how to clear the

data.

Clear Local Data

    • Do one of the following:
    • From the “Menu”  button in the upper-right corner of the Chrome window, choose “More Tools” > “Clear browsing data…“.
    • Press “CTRL” + “Shift” + “Delete” keys in Windows or Linux, or “Command” + “Shift” + “Delete” keys on macOS.
    • Select “Menu” > “Settings” > “Advanced” > “Clear browsing data…“.

      Cache In Google Chrome

    • Now Select Basic or Advanced Tab, I will prefer you to select Advanced Tab
    • Select the period of time you wish to delete cached information using the “Clear the following items from” drop-down menu.
    • From there, you can choose “Cached images and files“.
    • Cache In Google Chrome
      • Select All Option that you want to Clear. I will Prefer you to select All of them.
      • Remember It will Clear All Your Browsing info, Your Password will Also Clear. So I will Prefer you to Backup all your Important Data.Cache In Google Chrome
      • Select the “Clear browsing data” button, and this will clear your cache in Google Chrome.

let me know if you find any issues

 

Installing .NET Framework 3.5 without Any Error

.NET Framework 3.5

 

NET Framework is a very important component of Microsoft Windows which is used for running

and creating applications of next-generation and services which are based on XML web. This

framework possesses the ability to deliver value to your business with a much faster time of

marketing.

While Installing .NET Framework 3.5 several errors can occur: 0x800F0906, 0x800F081F, 0x800F0907, 0x800F0922

 

The usual way

    • Open Server Manager and select Features.
    • ★ Select Add roles and features to launch the Add Roles and Features wizard.
    • ★ In the Add Roles and Features wizard, click the .NET Framework 3.5 checkbox (under the .NET Framework 3.5 Features container) and click Next.
    • ★ In the Confirm Installation Selections dialog box, click Install.
    • ★ When the installation is complete, click Close to finish. Check for the latest Windows updates and
    • install any Critical or Security updates related to Microsoft. NET.

If you got any errors while Installing .NET Framework 3.5 then you need to download or insert Windows Server installation media.

 

Best Method

 

    • First Download Installing .NET Framework 3.5 Windows Server installation media. Before Download Just check Windows Server Version. you need to download the same version.
    • You can find it anywhere on the Internet.
    • You can also Insert the Windows Server installation media If you have.
    • Now Copy It & Paste it anywhere you want.  
    • Now Lets Start
    • Open Server Manager and select Features.
    • ★ Select Add roles and features to launch the Add Roles and Features wizard.
    • ★ In the Add Roles and Features wizard, click the .NET Framework 3.5 checkbox (under the .NET Framework 3.5 Features container) and click Next.
    • In the Confirm Installation Selections dialog box, click Specify an alternate source path.
    • .NET Framework 3.5

    • In the Specify Alternate Source Path dialog box, enter the path and click OK. The Confirm Installation Selections dialog box appears.
    • .NET Framework 3.5

    • ★ Now Click Install.
    • When the installation is complete, click Close to finish. Check for the latest Windows updates and
    • install any Critical or Security updates related to Microsoft. NET.

let me know if you find any issues

 

How To Encrypt or Decrypt Content In One Click

Encrypt content

What are base 64 encodings used for?

Base64 is a method for encoding 8-bit binary data into a character string that only consists of

readable, code-page-independent ASCII characters. It is used in the Internet-standard Multipurpose

Internet Mail Extensions and is used there to send e-mail attachments.


When you have some binary data that you want to ship across a network, you generally don’t do it by

just streaming the bits and bytes over the wire in a raw format. Why? because some media are made

for streaming text. You never know — some protocols may interpret your binary data as control

characters (like a modem), or your binary data could be screwed up because the underlying protocol

might think that you’ve entered a special character combination (like how FTP translates line

endings). So to get around this, people encode the binary data into characters. Base64 is one of these

types of encodings.


Why 64?


Because you can generally on the same 64 characters being present in many character sets, and you

can be reasonably confident that your data’s going to end up on the other side of the wire

uncorrupted.

Download

Steps to Encrypt Or Decrypt Content

    • ★ At First Run The Tool From Download Folder, You Don’t Need to Install It, It’s Portable Software.
    • ★ You can paste it anywhere on the Desktop.
    • ★ There are two sections Available. One is for Encrypting & The other one is For Decrypting.
    • ★ Now Type anything in Encrypt Section that you want to Encrypt.
    • ★ Now Click On Encode Button’.
    • ★ You Can Copy It by Clicking Copy Button.
    • ★ You can Decrypt anything also in the same process.

Here is Tutorial Video Link

 

How to record an application in windows 10 for free

record an application

There is So many Application you can use it for record an application in your windows. You need to

be paid most of them to open the advance option. I will suggest you best free recording application.

you can also use the Windows inbuilt recording option that comes up with a newer version. but it’s

not available on the server for now. Today I will show the advanced method with FFmpeg.

Download

Installation Process

    • ⚡First Download The FFmpeg
    • ⚡Extract the FFmpeg folder.
    • ⚡Rename the extracted folder. In the new window that appears you will see a folder named “ffmpeg-20180424-d9706f7-win64-static”. You have to rename this folder to “FFmpeg”. 
    • ⚡Copy the “FFmpeg” folder. Mark it for this and press Ctrl+C to copy.
    • ⚡Paste it to “C” drive
    • ⚡Now Go to Advanced system settings
    • ⚡Click below the window, click the button Environment Variables.
    • ⚡Double-click the Path value. 
    • ⚡Click in the window when new. This creates a new text field in the window.
    • ⚡Enter the path to the “FFmpeg” folder. Type C:\FFmpeg\binin the text field and click OK.
    • ⚡Open Cmd As Administrator.
    • ⚡Check your FFmpeg version. Type in ffmpeg -versionand press ↵ Enter. This should open
    • a list of information about FFmpeg.
    • If instead, you see a notice that FFmpeg is not known as an internal or external command, executable, or batch file, you may not have spelled the path correctly.
    • ⚡ Now you can Record Your Desired Application without any Software.

Steps to Record An Application

    • ⚡First Open Your Application That You want to Record.
    • ⚡Now Open Powershell In Your Desktop.
    • ⚡Now Run This Command – ffmpeg -f gdigrab -framerate 30 -i title=Calculator output.mkv.
    • ⚡Replace the Calculator with your application Name.
    • ⚡You can Replace also the Output with your Desired Output Name.
    • ⚡Press q to stop your Recording.

Here is Tutorial Video Link

 

 

Best SSH Clients for Windows

SSH Client For Windows

Using SSH (Secure Shell) you can establish an encrypted connection to the command line (shell) on

your Web server. For most Windows users, SSH will seem like a DOS prompt, in fact, the function is

the same. You can execute commands in the command line via SSH as well as via the command

prompt, except that with SSH these are not executed locally on your computer but on the webserver.

Let’s Go –

 

There are many SSH client for windows are available, most of them are free but there are also some commercial programs that include advanced features. In this article, I will share the best SSH client for Windows.

PuTTY SSH Client

 

SSH Client For Windows

 

PuTTY is described as a ‘free and open-source terminal emulator, serial console and network file transfer

application’ and is one of the leading apps in the OS & utility category. There are more than 50 alternatives to

PuTTY for a variety of platforms, including Windows, Linux, Mac, Android, and iPhone. The best alternative is

OpenSSH, which is both free and Open Source. Other great apps like PuTTY are KiTTY (Free, Open

Source), MobaXterm (Freemium), mRemoteNG (Free, Open Source), and ZOC (Paid).

Features

Platforms

    • ⚡ Windows
    • ⚡ Linux
    • ⚡ Mac
    • ⚡ Android
    • ⚡ iPhone
    • ⚡ BSD
    • ⚡ iPad
    • ⚡ Android Tablet
    • ⚡ Chrome OS
    • ⚡ Online
    • ⚡ Cygwin
    • ⚡ Haiku
    • ⚡ Waterfox
    • ⚡ Pale Moon
    • ⚡ mosh
    • ⚡ OpenSSH
    • ⚡ Dropbear SSH Server and Client
    • ⚡ Firefox
    • ⚡ Windows Mobile
    • ⚡ Windows S

Here is the Official 🔗 Website Link

 

How to Fix the OBS Capture Window Black Screen Issue

OBS Capture Window Black Screen

In OBS Studio (Open Broadcaster Software), the capture window allows you to capture what is being displayed on your screen. You can capture the footage from any window on your computer and include it in your stream broadcast.

You could use this to capture the footage from a game during a live playthrough, capture the footage from Photoshop when you’re streaming your work in progress art, or capture the footage from some software as you stream a live tutorial for it. 

OBS Studio makes it easy to capture your window and this can all be set up with just a few clicks (click “Add Source” and follow the prompts). However, sometimes OBS Studio breaks, preventing your window from being captured properly or making it so that you can’t see (and confirm) what footage is being broadcast. So here We have fix for that OBS capture window black screen issue.

Steps to fix OBS Capture Window Black screen :-

    • Click the three horizontal dots in the right-hand corner of Chrome to open the menu.
    • Select “Settings” (it’s towards the bottom of the list).
    • Scroll down to the bottom of the Settings page and select “Advanced”.
    • Under Advanced, find the category called “System” (it’s near the bottom).
    • Uncheck “Use hardware acceleration when available”.
    • That’s It.

how to install active directory users and computers in windows server 2019

active directory

The Windows – Server operating systems are a series of server operating systems, enterprise-class

from Microsoft. They are designed to allow multiple users to share services and provide full

administrative control over data stores, applications, and corporate networks

 

Steps to Install Active Directory Users & Computers in Windows Server 2019:

    • Open Run Prompt (Win + R).
    • Type “ServerManager” into Run & click/tap on OK.
    • It will open the Server Manager Console.
    • Now Click on “Add roles and Features”.
    • Now Click on the Next till Server Roles Option.
    • Now Select Active Directory Domain Services & Click on Add features.
    • Now Click on Next till Install Option.
    • Click on Install & Wait a bit.
    • That’s it.

Here is Tutorial Video Link

 

 

How to Use Android App on Windows Server 2019

Android App on Windows server

 

In computer technology, an emulator is a system that simulates another in certain aspects. In this tutorial you will learn how to use Android App on Windows Server 2019 .

 

Steps to Use Android App on Windows Server  –

    • Now Click On Download And Download will start automatically.
    • Now Just Run Setup.exe File.
    • Now Just go through the Default Installation process.
    • That’s It.

Here is Tutorial Video Link