Fedora 42 : ... testing Advanced Intrusion Detection Environment (AIDE).

Advanced Intrusion Detection Environment (AIDE) is a utility that creates a database of files on the system, and then uses that database to ensure file integrity and detect system intrusions.. See more on the official fedora documentation webpage.

NOTE : The documentation and translations on the official page are in progress due to ongoing development and resource management ...

I used the DNF tool to install:

[mythcat@fedora ~]$ sudo dnf install aide
... aide      x86_64      0.18.6-5.fc41        rawhide      

Make sure the AIDE database file exists and is accessible:

[mythcat@fedora ~]$ sudo ls -l /var/lib/aide/aide.db.gz

Ensure that the user running AIDE has the necessary permissions:

[mythcat@fedora ~]$ sudo ls -l /var/lib/aide/

Check the AIDE configuration file:

[mythcat@fedora ~]$ sudo cat /etc/aide.conf | grep DBDIR

Check if the AIDE service file exists:

[mythcat@fedora ~]$ sudo ls /usr/lib/systemd/system/ | grep aide

If the service exists then check the status:

[mythcat@fedora ~]$ sudo systemctl status aide
Unit aide.service could not be found.

If the service not exist then take some time to run first time ...

[mythcat@fedora ~]$ sudo /sbin/aide --init
...
End timestamp: 2024-10-26 14:10:00 +0300 (run time: 98m 41s)

You can check each time you want ...

[mythcat@fedora ~]$ sudo /sbin/aide --check

If you want and your Fedora linux need to use this tool, then you can use it like service:

sudo nano /usr/lib/systemd/system/aide.service

Fill with the basic service source code like any unit service :

[Unit]
   Description=Advanced Intrusion Detection Environment
   After=network.target

   [Service]
   Type=simple
   ExecStart=/sbin/aide --init
   ExecStop=/sbin/aide --check
   Restart=on-failure

   [Install]
   WantedBy=multi-user.target

This is a simple tutorial about how to start with AIDE tool ...

Fedora 42 : Still in the development without some features ...

An intrusion on my vodafone network , change my layout on windows.

Even the network provider say always is not from hardware or administration vodafone network ...

I tried to wrote a post on my graphics blogger on windows os , but I got something like this:

... ld ne frm 3 cmbire 224 ...

My nicknames comes like this: mhca caafe for mythcat and catafest ...

The tab and enter keys not works, also 1234 789 and num keys ... and more keys: s, t, w, y, o.

This post is wrote on Fedora 42 and works fine , but will be more good if this distro will have all features.

Some examples :

- Selinux still works but some enforced can change the default user permissions and privileges.

- Selinux works but you can use full features like : mls.

- the TPM device from this HP Laptop cannot be used with all features on Fedora.

In conclusion, this old laptop with Fedora and GNOME environment is more than 10 times faster human operations on the range of time, than the Asus laptop with the same 4GB RAM but with a different CPU Intel(R) Core(TM) i3-60060 @ 2.00 GHz 1.99 GHz and windows 10 pro.

Fedora 42 : Testing isoimagewriter.

Today I tested the isoimagewriter tool on Fedora 42 and works well:

[mythcat@fedora ~]$ sudo fdisk -l /dev/sdb
Disk /dev/sdb: 984 MiB, 1031798784 bytes, 2015232 sectors
Disk model: USB FLASH DRIVE 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
[mythcat@fedora ~]$ isoimagewriter 
[mythcat@fedora ~]$ sudo file -s /dev/sdb
/dev/sdb: ISO 9660 CD-ROM filesystem data 'CorePure64' (bootable)
[mythcat@fedora ~]$ sudo qemu-system-x86_64 -cdrom /dev/sdb 

I used an linux iso image from CorePure64

Fedora 42 : Fedora game project with pygame and agentpy - part 004.

... working on hacking game code , you can test two version of the unfinished game with agentpy at my pagure Fedora account.

* Hack the code based on minimal information versus total information. The code has 5 distinct letters. - click on the letters on the keypad - the number of guessed letters is displayed in the form: centered - guessed letters on positions and moved guessed letters but on other positions NOTE: the source code is under development, I need to enter a scroll to be able to enter more codes with letters

Fedora 42 : Fedora game project with pygame and agentpy - part 003.

I have upgraded the source code with the following changes:

• added agent with logic using the python agentpy module;
• I increased the grid to 16 x 16;
• I kept the win condition at 8 pieces aligned in any direction;
• I added conditions for displaying the equality message;

The game is hard to win, you can try on my pagure account.

Fedora 42 : Fedora game project with pygame and agentpy - part 002.

... and update from 8 in 8 with SVG file type.

The source code I used or you can find it on the pagure project:

import pygame
from pygame.math import Vector2
import random
import os 
username = os.getlogin()
# Initialize Pygame
pygame.init()
# Set up the display
width, height = 800, 800
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption("Eight-in-a-Row")
# Font setup
font = pygame.font.Font(None, 74)
# Colors
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
BLUE = (0, 0, 120)
# Game board dimensions
BOARD_WIDTH = 8
BOARD_HEIGHT = 8

class Player:
    def __init__(self, color, is_computer=False):
        self.color = color
        self.pieces = set()
        self.is_computer = is_computer
        self.svg_image = self.load_svg_image()

    def add_piece(self, x, y):
        self.pieces.add((x, y))

    # def draw_pieces(self):
    #     for x, y in self.pieces:
    #         pygame.draw.circle(screen, self.color, 
    #                            (x * width // BOARD_WIDTH + width // (2 * BOARD_WIDTH), 
    #                             y * height // BOARD_HEIGHT + height // (2 * BOARD_HEIGHT)), 
    #                            min(width, height) // (2 * BOARD_WIDTH) - 5)
    
    def load_svg_image(self):
        if self.color == BLUE:
            svg_path = "penguin-svgrepo-com.svg"
        elif self.color == WHITE:
            svg_path = "cube-svgrepo-com.svg"
        else:
            svg_path = "cube-svgrepo-com.svg"
        return pygame.image.load(svg_path)

    def draw_pieces(self):
        piece_size = min(width, height) // (BOARD_WIDTH) - 10
        for x, y in self.pieces:
            pos = Vector2(x * width // BOARD_WIDTH + width // (2 * BOARD_WIDTH),
                          y * height // BOARD_HEIGHT + height // (2 * BOARD_HEIGHT))
            scaled_image = pygame.transform.scale(self.svg_image, (piece_size, piece_size))
            image_rect = scaled_image.get_rect(center=pos)
            screen.blit(scaled_image, image_rect)

    def make_move(self, board):
        if self.is_computer:
            empty_squares = [(x, y) for x in range(BOARD_WIDTH) for y in range(BOARD_HEIGHT) 
                             if (x, y) not in board[0] and (x, y) not in board[1]]
            if empty_squares:
                return random.choice(empty_squares)
        return None

def check_winner(player):
    directions = [(0, 1), (1, 0), (1, 1), (1, -1)]
    for x, y in player.pieces:
        for dx, dy in directions:
            if all((x + i*dx, y + i*dy) in player.pieces for i in range(8)):
                return True
    return False
    
def display_winner(winner):
    text = font.render(f"Player {winner} wins!", True, [145,190,190])
    text_rect = text.get_rect(center=(width // 2, height // 2))
    screen.blit(text, text_rect)
    pygame.display.flip()
    pygame.time.wait(3000)  # Display the message for 3 seconds

# Create players
player1 = Player(BLUE)
player2 = Player(WHITE, is_computer=True)
# Game loop
running = True
turn = 0
game_over = False

while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.MOUSEBUTTONDOWN and not game_over:
            if turn % 2 == 0:  # Human player's turn
                mouse_x, mouse_y = event.pos
                column = mouse_x // (width // BOARD_WIDTH)
                row = mouse_y // (height // BOARD_HEIGHT)
                
                if (column, row) not in player1.pieces and (column, row) not in player2.pieces:
                    player1.add_piece(column, row)
                    
                    if check_winner(player1):
                        # print("Player 1 wins!")
                        display_winner(username)
                        game_over = True
                    
                    turn += 1

    if not game_over and turn % 2 == 1:  # Computer player's turn
        move = player2.make_move((player1.pieces, player2.pieces))
        if move:
            player2.add_piece(*move)
            
            if check_winner(player2):
                # print("Player 2 (Computer) wins!")
                display_winner("Computer")
                game_over = True
            turn += 1

    screen.fill(BLACK)
    
    # Draw game board
    for i in range(BOARD_WIDTH + 1):
        pygame.draw.line(screen, WHITE, (i * width // BOARD_WIDTH, 0), (i * width // BOARD_WIDTH, height), 2)
    for i in range(BOARD_HEIGHT + 1):
        pygame.draw.line(screen, WHITE, (0, i * height // BOARD_HEIGHT), (width, i * height // BOARD_HEIGHT), 2)

    # Draw pieces
    player1.draw_pieces()
    player2.draw_pieces()
    pygame.display.flip()

pygame.quit()

Fedora 42 : Fedora game project with pygame and agentpy - part 001.

I started a game project with the python packages pygame and agentpy in the Fedora 42 Linux distribution.

I used this version of Fedora:

[mythcat@fedora fedora_game]$ uname -a
Linux fedora 6.11.0-63.fc42.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Sep 15 17:14:12 UTC 2024 x86_64 GNU/Linux

... and this python version:

Python 3.12.3 (main, Apr 17 2024, 00:00:00) [GCC 14.0.1 20240411 (Red Hat 14.0.1-0)] on linux

You can find it on my fedora pagure repo

News : Flutter on Fedora 40 - the run debug info.

The run command comes with info about the running process, see:

[mythcat@fedora examples]$ ../flutter/bin/flutter run
Launching lib/main.dart on Linux in debug mode...
Building Linux application...                                           
Syncing files to device Linux...                                 1,488ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on Linux is available at: http://127.0.0.1:38903/k8tmzU7n0NQ=/
The Flutter DevTools debugger and profiler on Linux is available at:
http://127.0.0.1:9100?uri=http://127.0.0.1:38903/k8tmzU7n0NQ=/

If you open that URL you will see this type of informations:

Fedora 40 : Spectacle tool.

Spectacle is a screenshot taking utility for the KDE desktop. Spectacle can also be used in non-KDE X11 desktop environments.

This is the GitHub project for this tool.

[root@fedora mythcat]# dnf5 install spectacle.x86_64
Updating and loading repositories:
Repositories loaded.
Package                       Arch   Version                 Repository      Size
Installing:                                                                      
 spectacle                    x86_64 24.02.0-1.fc41          updates-te   4.8 MiB
Installing dependencies:                                                         
...

This is an screenshot with this tool:

News : Introducing GNOME 46

News : Flutter on Fedora 40.

Flutter transforms the development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded experiences from a single codebase.

Read more on the official webpage.

Theoretically, Flutter can be used much easier in the Fedora 40 Linux distribution than in a Windows operating system.

The Windows installation method requires more complicated steps with the use of S.D.K. and settings of Android Studio I.D.E. .

Here are the steps you need to follow for a default installation.

[mythcat@fedora ~]$ mkdir ~/FlutterProjects
[mythcat@fedora ~]$ cd FlutterProjects/
[mythcat@fedora ~]$ wget https://storage.googleapis.com/flutter_infra_release/releases
/stable/linux/flutter_linux_3.3.10-stable.tar.xz
[mythcat@fedora ~]$ tar xf flutter_linux_3.3.10-stable.tar.xz
[mythcat@fedora ~]$
...

[mythcat@fedora FlutterProjects]$ ./flutter/bin/flutter doctor

┌─────────────────────────────────────────────────────────┐
│ A new version of Flutter is available!                  │
│                                                         │
│ To update to the latest version, run "flutter upgrade". │
└─────────────────────────────────────────────────────────┘
...

      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.

[✗] Chrome - develop for the web (Cannot find Chrome executable at
    google-chrome)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Linux toolchain - develop for Linux desktop
[!] Android Studio (not installed)
[✓] VS Code (version 1.87.2)
[✓] Connected device (1 available)
[✓] HTTP Host Availability

! Doctor found issues in 3 categories.
[mythcat@fedora FlutterProjects]$ ./flutter/bin/flutter upgrade

...

    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Linux toolchain - develop for Linux desktop
[!] Android Studio (not installed)
[✓] VS Code (version 1.87.2)
[✓] Connected device (1 available)
[✓] Network resources

! Doctor found issues in 4 categories.

[mythcat@fedora FlutterProjects]$ ./flutter/bin/flutter config --enable-linux-desktop
Setting "enable-linux-desktop" value to "true".

You may need to restart any open editors for them to read new settings.

[mythcat@fedora FlutterProjects]$ mkdir examples
[mythcat@fedora FlutterProjects]$ cd examples/

[mythcat@fedora examples]$ ../flutter/bin/flutter create .
Creating project ....
Resolving dependencies... (5.1s)
Got dependencies.
Wrote 129 files.

All done!
You can find general documentation for Flutter at: https://docs.flutter.dev/
Detailed API documentation is available at: https://api.flutter.dev/
If you prefer video documentation, consider:
https://www.youtube.com/c/flutterdev

In order to run your application, type:

  $ cd .
  $ flutter run

Your application code is in ./lib/main.dart.

[mythcat@fedora examples]$ cd .
[mythcat@fedora examples]$ ls
analysis_options.yaml  ios    macos         README.md  windows
android                lib    pubspec.lock  test
examples.iml           linux  pubspec.yaml  web
[mythcat@fedora examples]$ ../flutter/bin/flutter run

The result is this simple default example:

News : SELinux wizzard tool !

I found today in Fedora linux this tool for SELinux with a GUI that allows creating linux security policies.

I will write a little about this system because it is a very good solution.

When I started studying selinux, it was not very well implemented and it seems that the interest of users to be protected is higher.

As you well know, the starting points are network security and data protection and kernel-level intrusions into software.

For those who don't know, SELinux is a system that allows limiting defined resources and allowing other actions or not.

I tested the tool and I can say that it solves only the standard file creation part without the possibility of selecting the SELinux bools variables.

If the one who created this tool will continue to be a very good tool.

It's currently a wizzard interface, I'd call it a Node Editor to allow the assembly of different processing blocks (nodes) into combinations that feed data to each other along connections you specify to produce complex effects.

After completing the steps in the wizard, you will have some default files.

I used the name firefox because the security of the browser is very low at the moment.

Here are some images of this tool:

News : VirtualBox 7.0.14 released! from Oracle.

Oracle today released a 7.0 maintenance release which improves stability and fixes regressions. See the Changelog

I also use a version of Fedora running on VirtualBox for tests and rapid development.

Most use Linux on older hardware as a backup OS...

You can use Linux with specific non-default settings for good security of the operating system, but it does not make it invincible.

I don't know if VirtualBox solved the resize of the virtual partition - this was the last issue I encountered with this tool, but it is useful if you want to test something quickly.

Fedora 39 : Issues in Fedora with PyGobject and sway-tests.

Today I wanted to test this repo named sway-tests.

I followed the steps there and received an error from gi.repository.

This error is related to another issue related to PyGobject.

In Fedora Linux distro, installing PyGobject is done with pip like this:

$ pip install PyGobject

In order to have no errors, the dnf or dnf5 tool should be used like this ...

I tested the functionality of this installation with a simple example:

import gi

gi.require_version("Gtk", "3.0")
from gi.repository import Gtk

win = Gtk.Window()
win.connect("destroy", Gtk.main_quit)
win.show_all()
Gtk.main()

It worked very well.

After solving this issue, I returned to the initial one and tested the sway-tests.

$ whereis sway
$ env/bin/pytest --sway=/usr/bin/sway
$ sudo env/bin/pytest --sway=/usr/bin/sway

I used the command both with and without sudo.

Both generated the same errors.

For the following command I had to install ... xorg-x11-server-Xephyr:

Xephyr is an X server which has been implemented as an ordinary X application. It runs in a window just like other X applications, but it is an X server ...

... the fixed centered black window specific to the xorg runtime appeared and somewhere on the side the terminal showed me a bunch of errors.

... obviously, I don't know how well sway-tests is implemented, now it's an archived repo, but I solved the use of PyGobject in python on the Fedora linux distribution.

News : An old change double equals is deprecated.

... although the change is old, for me it is new !

[root@fedora mythcat]# dnf install -y "kernel-devel-uname-r == $(uname -r)"
Last metadata expiration check: 1:12:11 ago on Wed 23 Aug 2023 05:17:13 PM EEST.
Using '==' operator in reldeps can result in an undefined behavior. It is deprecated and the support 
will be dropped in future versions. Use '=' operator instead.
Package kernel-devel-6.5.0-0.rc6.20230818git0e8860d2125f.47.fc40.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!
[root@fedora mythcat]# dnf install -y "kernel-devel-uname-r = $(uname -r)"
Last metadata expiration check: 1:12:50 ago on Wed 23 Aug 2023 05:17:13 PM EEST.
Package kernel-devel-6.5.0-0.rc6.20230818git0e8860d2125f.47.fc40.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!

Fedora 39 : GitHub tickets.

You can get a free virtual ticket for a price of 0.

Datatime and Location: NOVEMBER 8—9 LIVE & VIRTUAL YERBA BUENA CENTER FOR THE ARTS, SAN FRANCISCO.

Fedora 39 : micro - terminal .

micro - a modern and intuitive terminal-based text editor, see more on this official website.

Let's see how works n Fedora 39 Linux Distro ...

Fedora 38 : Sway on VirtualBox.

Sway is a tiling Wayland compositor and a drop-in replacement for the i3 window manager for X11. It works with your existing i3 configuration and supports most of i3's features, plus a few extras.

You can find this desktop at this GitHub project.

The official webpage comes with a video tutorial on how to use it.

Installation is simple with these commands using the dnf tool:

# dnf group install sway-desktop-environment
# dnf install sway-config-fedora

It is possible to ask you for additional arguments for installation like this: --allowerasing or --skip-broken.

After installation, reboot and select sway from the desktop switcher

NOTE: The display for virtual video card from VirtualBox need to be set to Enable 3D Acceleration.

Let's see the result of this desktop environment ...

Fedora 38 : Openbox from GitHub.

I tried to use the OpenBox desktop environment in Fedora 38 and it seems to be incomplete, see also this thread.

I try to build the Openbox desktop from the source code, see the GitHub project.

$ git clone https://github.com/danakj/openbox.git
$ cd openbox

I need to install these: gettext-devel, glib2-devel, libtool, and pango-devel.X86_64 all devel libraries with dnf tool ...

Use the next commands, you will see some errors about some deprecated libraries and source code when you use the make command.

$ ./bootstrap
$ ./configure
$ make 

The go-to openbox folder to see the result:

$ cd openbox
$ ls -lFGC

The last step is to run the Openbox after you solve these:

Failed to open the display from the DISPLAY environment variable.

Openbox-Message: A window manager is already running on screen 0.

Because you are into environment area you need to close it.

After several attempts, I managed to pass these issues and ran the command:

$ ./xinit

This is the result is this:

I don't really have skills in this field of changes in Linux distributions and I wouldn't want to give wrong indications.

Fedora 38 : Deepin on VirtualBox.

Today, I tested the Deepin environment on Virtual Box where I installed Fedora 38.

I do not recommend using this desktop environment on Virtual Box because it requires graphics resources.

Installation is simple as with any desktop environment installation, see this official webpage.

Here is the final result: