Fedora 41 : remove package lead to unexpected results.

Today I saw the mutter package from Fedora distro come with a new update.

I don't use this package, ... is a mess in my oppinion.

But I found this output when I tried to remove

root@localhost:/home/mythcat# dnf5 remove mutter 
Package                          Arch   Version                 Reposit      Size
Removing:
 mutter                          x86_64 47.1-3.fc41             updates  12.5 MiB
Removing dependent packages:
 gdm                             x86_64 1:47.0-8.fc41           updates   5.3 MiB
 gnome-shell                     x86_64 47.1-1.fc41             updates  13.8 MiB
Removing unused dependencies:
 accountsservice                 x86_64 23.13.9-5.fc41          fedora  379.5 KiB
 accountsservice-libs            x86_64 23.13.9-5.fc41          fedora  212.3 KiB
 bluez-obexd                     x86_64 5.79-1.fc41             updates 345.1 KiB
 bolt                            x86_64 0.9.8-3.fc41            fedora  503.3 KiB
 boost-thread                    x86_64 1.83.0-8.fc41           fedora  136.8 KiB
 color-filesystem                noarch 1-34.fc41               fedora  151.0   B
 colord                          x86_64 1.4.7-5.fc41            fedora    1.7 MiB
 colord-gtk4                     x86_64 0.3.1-2.fc41            fedora   35.6 KiB
 composefs-libs                  x86_64 1.0.6-1.fc41            fedora  166.3 KiB
 cups-pk-helper                  x86_64 0.2.7-8.fc41            fedora  379.0 KiB
 dbus-daemon                     x86_64 1:1.14.10-4.fc41        fedora  553.2 KiB
 evolution-data-server           x86_64 3.54.1-1.fc41           updates   8.8 MiB
 evolution-data-server-langpacks noarch 3.54.1-1.fc41           updates   8.8 MiB
 flatpak-libs                    x86_64 1.15.10-1.fc41          fedora    1.0 MiB
 ...
 
Is this ok [y/N]: N
 ... 

If I used this command the gdm and gnome-shell is gone:

root@localhost:/home/mythcat# dnf5 remove --noautoremove mutter 
Package                        Arch   Version                   Repository        Size
Removing:
 mutter                        x86_64 47.1-3.fc41               updates       12.5 MiB
Removing dependent packages:
 gdm                           x86_64 1:47.0-8.fc41             updates        5.3 MiB
 gnome-session-wayland-session x86_64 47.0.1-1.fc41             fedora        15.9 KiB
 gnome-shell                   x86_64 47.1-1.fc41               updates       13.8 MiB

Transaction Summary:
 Removing:           4 packages
 
Is this ok [y/N]: N
...

I tried with the --noautoremove, and --exclude args and not result:

root@localhost:/home/mythcat# dnf5 remove --noautoremove --exclude=gnome-shell,gdm mutter
Failed to resolve the transaction:
Problem: installed package gnome-shell-47.1-1.fc41.x86_64 requires libmutter-15.so.0()(64bit), but none of the providers can be installed
  - installed package gnome-shell-47.1-1.fc41.x86_64 requires libmutter-clutter-15.so.0()(64bit), but none of the providers can be installed
  - installed package gnome-shell-47.1-1.fc41.x86_64 requires libmutter-cogl-15.so.0()(64bit), but none of the providers can be installed
  - installed package gnome-shell-47.1-1.fc41.x86_64 requires libmutter-mtk-15.so.0()(64bit), but none of the providers can be installed
  - installed package gnome-shell-47.1-1.fc41.x86_64 requires mutter(x86-64) >= 47.0, but none of the providers can be installed
  - conflicting requests
  - problem with installed package

The solution is old rpm tool:

root@localhost:/home/mythcat# rpm -e --nodeps mutter 
root@localhost:/home/mythcat# dnf5 remove mutter
No packages to remove for argument: mutter

Nothing to do.

Fedora 41 : use pagure tool with ssh key ...

Pagure is a light-weight git-centered forge based on pygit2.

The basic tool can be found on this fedora package, the pagure has more features.

Because I used only like a repo I install with DNF5 tool the basic cli:

# dnf5 install pagure-cli.x86_64

I created a folder then I used easy like git tool for each project I have under basic fedora account:

mythcat@localhost:~/pagure_fedora$ git clone https://pagure.io/mythcat
Cloning into 'mythcat'...
remote: Enumerating objects: 1567, done.
remote: Counting objects: 100% (1567/1567), done.
remote: Compressing objects: 100% (1467/1467), done.
remote: Total 1567 (delta 76), reused 1496 (delta 63), pack-reused 0
Receiving objects: 100% (1567/1567), 5.82 MiB | 2.26 MiB/s, done.
Resolving deltas: 100% (76/76), done.
mythcat@localhost:~/pagure_fedora$ git clone https://pagure.io/radio-online-catafest
Cloning into 'radio-online-catafest'...
remote: Enumerating objects: 8, done.
remote: Counting objects: 100% (8/8), done.
remote: Compressing objects: 100% (7/7), done.
remote: Total 8 (delta 1), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (8/8), 6.01 KiB | 267.00 KiB/s, done.

These are git repos for folders: mythcat and radio-online-catafest, any git command can be run on these folders.

mythcat@localhost:~/pagure_fedora$ cd mythcat 
mythcat@localhost:~/pagure_fedora/mythcat$ nano test.txt
mythcat@localhost:~/pagure_fedora/mythcat$ git status
On branch main
Your branch is up to date with 'origin/main'.

Untracked files:
  (use "git add <file> ..." to include in what will be committed)
	test.txt

nothing added to commit but untracked files present (use "git add" to track)
mythcat@localhost:~/pagure_fedora/mythcat$ git add .
mythcat@localhost:~/pagure_fedora/mythcat$ git commit -am "test with a file"
[main 2c9fa14] test with a file
 Committer: Catalin George Festila <mythcat localhost.localdomain="">
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly. Run the
following command and follow the instructions in your editor to edit
your configuration file:

    git config --global --edit

After doing this, you may fix the identity used for this commit with:

    git commit --amend --reset-author

 1 file changed, 1 insertion(+)
 create mode 100644 test.txt
 mythcat@localhost:~/pagure_fedora/mythcat$  git config --global --edit
mythcat@localhost:~/pagure_fedora/mythcat$ git commit --amend --reset-author
[main 308a2c9] test with a file
 1 file changed, 1 insertion(+)
 create mode 100644 test.txt
mythcat@localhost:~/pagure_fedora/mythcat$ git remote set-url origin git@pagure.io:mythcat.git
mythcat@localhost:~/pagure_fedora/mythcat$ git remote -v
origin	git@pagure.io:mythcat.git (fetch)
origin	git@pagure.io:mythcat.git (push)

You need to use ssh-keygen to have a ssh key for pagure on Fedora linux then remove the old key and, add the ssh key to Fedora pagure account, then I push the file:

mythcat@localhost:~/pagure_fedora/mythcat$ ssh-add ~/.ssh/mypagure
mythcat@localhost:~/pagure_fedora/mythcat$ ssh-keygen -y -f ~/.ssh/mypagure
mythcat@localhost:~/pagure_fedora/mythcat$ systemctl restart sshd.service mythcat@localhost:~/pagure_fedora/mythcat$ git push 

For my repo radio-online-catafest the git remote command is this:

mythcat@localhost:~/pagure_fedora/radio-online-catafest$ git remote set-url origin git@pagure.io:radio-online-catafest.git
mythcat@localhost:~/pagure_fedora/radio-online-catafest$ git push 
Everything up-to-date

Fedora 41 : timeshift tool for backup.

... one old tool for backup was rsync ...

Now you have a tool named timeshift with this tool named timeshift and more features ...

You can install with:

root@localhost:/home/mythcat# dnf5 install timeshift.x86_64

I run this tool with :

mythcat@localhost:~$ sudo timeshift-gtk 

The result is this G.U.I. ...

... because the backup is not easy, I search on web and I found a video tutorial from the official youtube channel - DrewHowdenTech

...

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 41 : python and Federated Message Bus in Fedora Linux Distro.

Federated Message Bus is a library built on ZeroMQ using the PyZMQ Python bindings. fedmsg aims to make it easy to connect services together using ZeroMQ publishers and subscribers.

You can use this python package named fedmsg to use this functionality ...

This is the source code :

import fedmsg
from fedmsg import *

import os
# Set the routing_nitpicky flag to True
os.environ['FEDMSG_ROUTING_NITPICKY'] = 'True'


config = fedmsg.config.load_config([],None)
config['mute'] = True
config['timeout'] = 0

for name, endpoint, topic, msg in fedmsg.tail_messages(**config):
    print ("name ", name)

This is the result :

[mythcat@fedora FedoraMessaging]$ python fedmsg_001.py
No routing policy defined for "org.fedoraproject.prod.copr.build.start" but routing_nitpicky is False so the message is being treated as authorized.
name  fedora-infrastructure
No routing policy defined for "org.fedoraproject.prod.copr.chroot.start" but routing_nitpicky is False so the message is being treated as authorized.
name  fedora-infrastructure
No routing policy defined for "org.fedoraproject.prod.github.check_run" but routing_nitpicky is False so the message is being treated as authorized.
name  fedora-infrastructure
No routing policy defined for "org.fedoraproject.prod.github.pull_request_review" but routing_nitpicky is False so the message is being treated as authorized.
name  fedora-infrastructure
No routing policy defined for "org.fedoraproject.prod.github.pull_request_review_comment" but routing_nitpicky is False so the message is being treated as authorized.
name  fedora-infrastructure ... 

Fedora 41 : Memstrack tool.

A runtime memory allocation tracer, like a hot spot analyzer for memory allocation, can help analyze overall memory usage, peak memory usage, kernel module memory usage, all combined with stacktrace. Userspace memory trace is planned and not yet implemented.

This tool works by tracing all page-level memory allocation events in kernel (currently supports using perf or ftrace), and actively integrate the events into a stack trace tree. It can also work with kernel's page owner log file and use as a memory usage viewer.

I tested this tool today and it is quite useful for development and monitoring the operating system, it seems to work very well, you can even see in the screenshot how ...

You can find this project on the GitHub repo.

Fedora 40 : sngrep tool.

The sngrep is a tool for displaying SIP calls message flows from terminal and supports live capture to display realtime SIP packets and can also be used as PCAP viewer.

[mythcat@fedora ~]# dnf copr enable irontec/sngrep
[mythcat@fedora ~]# dnf install sngrep
[mythcat@fedora ~]# exit
[mythcat@fedora ~]$ sudo sngrep  -d ens1 -O save.pcap port 8080 and udp

The result is this:

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 : Fixing common upgrade issues.

The most common issue is that the Linux system hangs due to disk space and upgrades.

Here's what you need to do:

Ensure you have root access by editing the boot sequence from the boot menu with the word single and entering the root password.

... start the network in the maintenance environment with the command:

# systemctl restart NetworkManager

Check if you can update with the DNF5 tool or DNF , see this webpage:

# dnf5 upgrade --refresh

If the update tool tells you that you have no space available, then you can clean up with:

# journalctl --disk-usage
# journalctl --vacuum-size=16M

The size of 16M is a relative size related to how the resource is allocated!

Another possibility would be to reallocate the space.

NOTE: If you are using a virtual disk with .vdi extension on Windows OS, then I don't have a solution.

Although virtualbox has an interface that would allow resizing the virtual disk, it didn't work for me.

Fedora 39 : Foot - the sway terminal.

Today, I will show how to use a fast, lightweight, and minimalistic Wayland terminal emulator named Foot.

You can install it easily with the DNF5 tool :

The project can be found on this codeberg repo.

On the sawy desktop environment, you can use Win+D keys just to type a command to start an application.

You can start easily by typing foot or you can type on an open terminal, see:

[mythcat@fedora ~]$ foot
warn: wayland.c:1509: fractional scaling not available
warn: wayland.c:1512: no server-side cursors available, falling back to client-side cursors
warn: fcft.c:583: failed to get full font name
warn: fcft.c:583: failed to get full font name

I used updatedb and locate commands to find the foot.ini file and change some settings like font size, and more :

Fedora 39 : ImHex editor.

ImHex is a Hex Editor, a tool to display, decode and analyze binary data to reverse engineer their format, extract informations or patch values in them.

Read more on the official webpage.

Let's install with dnf5 tool:

# dnf5 install imhex.x86_64
Updating and loading repositories:
Repositories loaded.
Package         Arch       Version         Repository                   Size
Upgrading:                
 cpp            x86_64     13.2.1-6.fc40   updates-testing          30.9 MiB
  replacing cpp                          x86_64     13.2.1-5.fc40   updates-testing          30.9 MiB
 gcc            x86_64     13.2.1-6.fc40   updates-testing          94.7 MiB
  replacing gcc                          x86_64     13.2.1-5.fc40   updates-testing          94.7 MiB
 gcc-c++        i686       13.2.1-6.fc40   updates-testing          34.7 MiB
  replacing gcc-c++                      i686       13.2.1-5.fc40   updates-testing          34.7 MiB
 gcc-c++        x86_64     13.2.1-6.fc40   updates-testing          33.9 MiB
  replacing gcc-c++                      x86_64     13.2.1-5.fc40   updates-testing          33.9 MiB
 gcc-plugin-annobin                      x86_64     13.2.1-6.fc40   updates-testing          57.0 KiB
  replacing gcc-plugin-annobin           x86_64     13.2.1-5.fc40   updates-testing          57.0 KiB
 glib2          x86_64     2.78.3-1.fc40   updates-testing          13.5 MiB
  replacing glib2                        x86_64     2.78.1-1.fc40   rawhide                  13.5 MiB
 glib2-devel    x86_64     2.78.3-1.fc40   updates-testing           3.7 MiB
  replacing glib2-devel                  x86_64     2.78.1-1.fc40   rawhide                   3.7 MiB
 libcurl        x86_64     8.5.0-1.fc40    updates-testing         784.6 KiB
  replacing libcurl                      x86_64     8.4.0-1.fc40    rawhide                 776.5 KiB
 libcurl-devel                           x86_64     8.5.0-1.fc40    updates-testing           1.4 MiB
  replacing libcurl-devel                x86_64     8.4.0-1.fc40    rawhide                   1.4 MiB
 libgcc         i686       13.2.1-6.fc40   updates-testing         253.4 KiB
  replacing libgcc                       i686       13.2.1-5.fc40   updates-testing         253.4 KiB
 libgcc         x86_64     13.2.1-6.fc40   updates-testing         230.3 KiB
  replacing libgcc                       x86_64     13.2.1-5.fc40   updates-testing         230.3 KiB
 libgomp        x86_64     13.2.1-6.fc40   updates-testing         485.7 KiB
  replacing libgomp                      x86_64     13.2.1-5.fc40   updates-testing         485.7 KiB
 libquadmath    x86_64     13.2.1-6.fc40   updates-testing         325.9 KiB
  replacing libquadmath                  x86_64     13.2.1-5.fc40   updates-testing         325.9 KiB
 libquadmath-devel                       x86_64     13.2.1-6.fc40   updates-testing          21.4 KiB
  replacing libquadmath-devel            x86_64     13.2.1-5.fc40   updates-testing          21.4 KiB
 libstdc++      x86_64     13.2.1-6.fc40   updates-testing           2.7 MiB
  replacing libstdc++                    x86_64     13.2.1-5.fc40   updates-testing           2.7 MiB
 libstdc++-devel                         x86_64     13.2.1-6.fc40   updates-testing          14.2 MiB
   replacing libstdc++-devel             x86_64     13.2.1-5.fc40   updates-testing          14.1 MiB
Installing:               
 imhex          x86_64     1.31.0-1.fc40   updates-testing          25.6 MiB
Installing dependencies:                           
 glfw           x86_64     1:3.3.8-4.fc39                           updates-testing         290.0 KiB
 nativefiledialog-extended               x86_64     1.1.1-1.fc40    updates-testing          40.8 KiB
 yara           x86_64     4.4.0-1.fc40    updates-testing         612.0 KiB
Installing weak dependencies:                      
 imhex-patterns                          x86_64     1.31.0-1.fc40   updates-testing           9.4 MiB

Transaction Summary:
 Installing:        5 packages
 Upgrading:        16 packages
 Replacing:        16 packages

Total size of inbound packages is 93 MiB. Need to download 93 MiB.
After this operation 36 MiB will be used (install 268 MiB, remove 232 MiB).
Is this ok [y/N]: y ...

I try on run on HP Compaq 6710b but not working:

[mythcat@fedora ~]$ imhex
[15:50:08] [INFO]  [main]       Welcome to ImHex 1.31.0!
[15:50:08] [INFO]  [main]       Compiled using commit Unknown@Unknown
[15:50:08] [INFO]  [main]       Running on Linux 6.7.0-0.rc3.20231129git18d46e76d7c2.30.fc40.x86_64 
#1 SMP PREEMPT_DYNAMIC Wed Nov 29 15:20:20 UTC 2023 (x86_64)
[15:50:09] [ERROR] [main]       GLFW Error [65543] : GLX: Failed to create context: GLXBadFBConfig
[15:50:09] [FATAL] [main]       Failed to create GLFW window: [65543] GLX: Failed to create context: GLXBadFBConfig.
You may not have a renderer available.
The most common cause of this is using a virtual machine
You may want to try a release artifact ending with 'NoGPU'

Fedora 39 : About Penpot online tool.

Designers and developers can finally work in unison to build beautifully designed software experiences that truly scale up.

Penpot is the Open-Source Design & Prototyping Tool for Product Teams.

If you have worked with Adobe XD or similar software, then it performs the same functions.

I haven't tested it very thoroughly, but I can tell you that it works very well and is open-source and free.

I haven't seen anything about Bootstrap in the library of bookstores and templates, but there are quite a few in other areas with a pretty good design.

You can test it on the official webpage.

See these videos from the official youtube channel:

Fedora 39 : Using a stick or hard disk created in Windows.

When attached to USB, Linux distribution cannot access it.

Install these packages with the DNF utility.

sudo dnf install ntfs-3g
sudo dnf install ntfsfix

Use these commands to create a folder where it will be mounted and test if it can be mounted and where it is viewed :

sudo mkdir /mnt/mydrive
sudo mount -t ntfs-3g /dev/sdb1 /mnt/mydrive
dmesg| grep usb 
sudo mount /dev/sdb /mnt/mydrive
df -h

Fix errors with this command

sudo umount /dev/sdb1
sudo ntfsfix /dev/sdb1

It resumes the operation of mounting it in the folder named /mnt/mydrive:

sudo mount -t ntfs-3g /dev/sdb1 /mnt/mydrive

This command will mount as a superuser but can be modified as a normal user.

Create a USB folder into your home folder as normal user.

You can use these commands to use your files like a normal user:

[mythcat@fedora ~]$ sudo mount -t ntfs-3g /dev/sdb1 ~/USB
[sudo] password for mythcat: 
...
[mythcat@fedora ~]$ sudo umount /dev/sdb1

Fedora 36 : Rootkit Hunter tool.

rkhunter (Rootkit Hunter) is a Unix-based tool that scans for rootkits, backdoors and possible local exploits. It does this by comparing SHA-1 hashes of important files with known good ones in online databases, searching for default directories (of rootkits), wrong permissions, hidden files, suspicious strings in kernel modules, and special tests for Linux and FreeBSD..., see wikipedia .

You can find it on this website.

On Fedora 36 you can search and install with the DNF tool.

[root@fedora mythcat]# dnf search rkhunter
Last metadata expiration check: 3:38:34 ago on Sat 06 Aug 2022 10:35:34 AM EEST.
======================== Name Exactly Matched: rkhunter ========================
rkhunter.noarch : A host-based tool to scan for rootkits, backdoors and local exploits
[root@fedora mythcat]# dnf install rkhunter.noarch
Last metadata expiration check: 3:39:00 ago on Sat 06 Aug 2022 10:35:34 AM EEST.

The first step is to upgrade it and then you can check the system.

[root@fedora mythcat]# rkhunter --propupd
[ Rootkit Hunter version 1.4.6 ]
File created: searched for 179 files, found 139

[root@fedora mythcat]# rkhunter --check
[ Rootkit Hunter version 1.4.6 ]

Checking system commands...

  Performing 'strings' command checks

...

The result can be found on the log file and you can set settings on the conf file type.

[root@fedora mythcat]# vi /var/log/rkhunter/rkhunter.log
[root@fedora mythcat]# vi /etc/rkhunter.conf

Fedora 36 : first steps with the Hy.

Hy is a dialect of the Lisp programming language designed to interact with Python by translating s-expressions into Python's abstract syntax tree (AST). Hy was introduced at Python Conference (PyCon) 2013 by Paul Tagliamonte.

This is quite similar to the old GIMP Script Fu that I've worked with in the past. The syntax assumes a join like tabs in HTML, only we'll use parentheses. I haven't studied in detail the implications it has with the python language, but it certainly wasn't invented for nothing.

First, you need to install it with the pip tool.

[mythcat@fedora ~]$ pip3 install hy --user
Collecting hy
...
Successfully built hy
Installing collected packages: funcparserlib, colorama, hy
Successfully installed colorama-0.4.5 funcparserlib-1.0.0 hy-0.24.0

The I test some examples:

[mythcat@fedora ~]$ hy
Hy 0.24.0 using CPython(main) 3.10.5 on Linux
=> (setv a 1)
=> "hello world"
"hello world"
=> (setv mylist [1 2 3])

=> (get mylist 0)
1
=> (defn greet [name]
...  "Hello "
...  (print "Hello " name))
=> (greet "mythcat")
Hello  mythcat

You can test it online with this online tool:

Fedora 36 : The zeek tool.

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

Use the DNF tool to add repo for zeek tool:

[root@fedora home]# dnf config-manager --add-repo https://download.opensuse.org/repositories/security:zeek/Fedora_36/security:zeek.repo

Adding repo from: https://download.opensuse.org/repositories/security:zeek/Fedora_36/security:zeek.repo

Use DNF tool to install

[root@fedora home]# dnf install zeek-lts
The Zeek Network Security Monitor. (Fedora_36)   18 kB/s |  77 kB     00:04    
Last metadata expiration check: 0:00:02 ago on Sat 11 Jun 2022 12:33:29 AM EEST.
Dependencies resolved.
================================================================================
 Package                    Arch     Version              Repository       Size
================================================================================
Installing:
 zeek-lts                   x86_64   4.0.7-1.1            security_zeek   7.9 k
Installing dependencies:
 libbroker-lts-devel        x86_64   4.0.7-1.1            security_zeek   1.3 M
 libpcap-devel              x86_64   14:1.10.1-3.fc36     fedora          141 k
 python3-GitPython          noarch   3.1.26-1.fc36        fedora          275 k
 python3-gitdb              noarch   4.0.9-2.fc36         fedora          107 k
 python3-semantic_version   noarch   2.8.4-9.fc36         fedora           39 k
 python3-smmap              noarch   5.0.0-1.fc36         fedora           46 k
 zeek-lts-btest             x86_64   4.0.7-1.1            security_zeek   326 k
 zeek-lts-core              x86_64   4.0.7-1.1            security_zeek   4.8 M
 zeek-lts-devel             x86_64   4.0.7-1.1            security_zeek   957 k
 zeek-lts-libcaf-devel      x86_64   4.0.7-1.1            security_zeek   1.6 M
 zeek-lts-zkg               x86_64   4.0.7-1.1            security_zeek    50 k
 zeekctl-lts                x86_64   4.0.7-1.1            security_zeek   1.8 M

Transaction Summary
================================================================================
Install  13 Packages

Total download size: 11 M
Installed size: 57 M
Is this ok [y/N]:y
Downloading Packages:
(1/13): python3-gitdb-4.0.9-2.fc36.noarch.rpm   232 kB/s | 107 kB     00:00    


Complete!

Create a script file named main.zeek:

event zeek_init()
        {
        print "Hello, World!";
        }

event zeek_done()
        {
        print "Goodbye, World!";
        }

... and run this file:

[mythcat@fedora ~]$ /opt/zeek/bin/zeek main.zeek
Hello, World!
Goodbye, World!

Fedora 36 : Use the ykman tool - part 001.

You can see a full tutorial about how can install this linux tool for yubikey device on this tutorial.

The next command will program a random 38 character long static password to slot 1 on the device:

# ykman otp static 1 --generate --length 38 --force --keyboard-layout US

Fedora 35 : Kdenlive tool.

Note:

The new title of this blog is:About Fedora Linux distro

This was my first blog since blogspot.com and now blogger.com and I wrote my first articles and tutorials using the Linux operating system, especially Fedora distro.

Because I used it so much and it had an impact on my free time. Initially the title was generic "About me and my life" and I later kept it for S.E.O. and because it worked just as well as me.

The new title will not change the content at all and I hope it will come with new and good content.

---

Let's go back to today's tutorial article: installing kdenlive software.

Kdenlive is a powerful free and open source cross-platform video editing program made by the KDE community.

The last release was on Jan 7, 2022.

I use the DNF utility as follows:

[root@fedora mythcat]# dnf search kdenlive
Last metadata expiration check: 1:20:50 ago on Sat 22 Jan 2022 06:05:54 PM EET.
======================== Name Exactly Matched: kdenlive ========================
kdenlive.x86_64 : Non-linear video editor
[root@fedora mythcat]# dnf install kdenlive
Last metadata expiration check: 1:21:05 ago on Sat 22 Jan 2022 06:05:54 PM EET.
Dependencies resolved.
...
Complete!

After install I run well with this software:

[mythcat@fedora ~]$ kdenlive
QSocketNotifier: Can only be used with threads started with QThread
Invalid metadata for  "audiochannels"
Failed to parse "audiochannels"
Invalid metadata for  "audioconvert"
Failed to parse "audioconvert"
Invalid metadata for  "data_feed"
Failed to parse "data_feed"
Invalid metadata for  "imageconvert"
Failed to parse "imageconvert"
Invalid metadata for  "jack"
Failed to parse "jack"
Empty metadata for  "crop_detect"
Invalid metadata for  "glsl.manager"
Failed to parse "glsl.manager"
Invalid metadata for  "movit.convert"
...

This is a screenshot of the running program: