Recently looking fedora-tagger. I found techtalk-pse.

Tech Talk PSE is a Linuxpresentation software written by Richard Jones intended mostly for technical software demonstrations. It is designed to be simple to use (for Linux users) and it allows users to create technically accurate and interesting talks and demonstrations.

The man page (full of useful references and tips) has a little tutorial with a very simple example , maybe we appreciate this presentation software with a most complete example can show us the use of this poweruser tool:

First Choose a topic: This is the most important part of this little example, for this purpose and because this is a tech talk presentation software I will choose test boltron (this is only an example and i don’t any justice to the amazing work of the fedora modularity team). for a better explanation about what boltron is look:

Announcing Boltron: The Modular Server Preview


For installing techtalk-pse in fedora just:

$ sudo dnf install techtalk-pse

Download the example from here and uncompress:

$ tar -xJf TestExample.tar.xz


$ techtalk-pse

You should see something like this:


simple text


Show some code

Running Shell

embedded page

for one better guide read the fine manual:

$ man techtalk-pse

Enjoy 🙂

Cisco Packet Tracer 7.0 is created by Cisco SystemsTM and is now provided for free distribution. Self learners are now able to download Cisco Packet Tracer after registering on Cisco Netacad website. A free Packet Tracer 101 (English), a 1-hour self-paced online course is also offered to every registered (free) student to help them get started with PacketTracer 7.0, So you can register and download from here.

The cisco packettracer 7.0 is available for GNU/Linux under the next requirements:

  • nss and ssl libraries.
  • QT4 script-tools, WebKit and QT3 backward support.
  • Cisco NetSpace account. (Mandatory)

We need install some libraries as follows:

$ sudo dnf install zlib-devel ncurses-devel gtk2 glibc glibc-devel \\
 libstdc++ libX11-devel libXrender libXrandr libusb libXtst nss \\
 qt qtwebkit

This time we have x86 (32bits) and x86_64(64bits) Packet Tracer packages, to be sure what is our version, run:

$ uname -m

i686 (32bits)

Still we have the ugly openssl-1.0.0 dependency, so if we have a i686 (32bits) version of Fedora 26

$ wget
$ sudo rpm -Uvh openssl-lib-compat-1.0.0i-1.fc26.i686.rpm

x86_64 (64bits)

Today most people have a x86_64 machine and this time we have three options for resolve the OpenSSL dependency:

1.- Just download the package generated by me and simply trust me (I call this the ugliest method because i don’t provide any warranty):

$ sudo dnf copr enable bt0dotninja/openssl-lib-compat
$ sudo dnf install openssl-lib-compat

2.- Compile your own version (I call the “just ugly” method because you can check the source):

First get the code:

$ wget
$ sudo dnf install @development-tools fedora-packager krb5-devel
$ sudo rpm -Uvh openssl-1.0.0i-1.fc17.src.rpm

For the build process we need super user access:

$ su -
# cd rpmbuild/SPECS/
# wget
# rpmbuild -bb openssl-lib-compat-1.0.0.spec
# rpm -i ../RPMS/x86_64/openssl-lib-compat-1.0.0i-1.fc26.x86_64.rpm
# exit

So many thanks to Yves L’ECUYER owner of, the original spec and the example are all from him.

Cisco Packet Tracer 7.0 will be downloaded from Cisco Networking Academy Portal,

$ tar -xzf PacketTracer70_*_linux.tar.gz && cd PacketTracer70
$ chmod +x install
$ sudo ./install

After accept the EULA, the installation begins, we need set the environment variables with the next command:

$ sudo chmod +x /opt/pt/
$ sudo /opt/pt/

Graphical Launcher on Gnome

With our favorite plain text editor we will edit the file /usr/share/applications/pt7.desktop as follows:

#!/usr/bin/env xdg-open
[Desktop Entry]
Name=PacketTracer 7.0 
Comment=Networking Cisco 
GenericName=PacketTracer 7 

Now we will run Cisco Packet Tracer 7.0 from our Desktop:

Yesterday I completed an incredible first year in the fedora project, I noticed it because I was awarded with one badge for it (egg badge).

I arrived a month ago through whatcanidoforfedora, who told me that it was a good idea to go to ambassadors, commops and infrastructure, I tried first in ambassadors and immediately I was kicked :P. being member of any major parts of the fedora project requires a lot of patience and work. that was my first learning about the the project.

Today I’m  member of CommOps, DotNet, Marketing, infrastructure (apprentice) and I’m very happy with it (Ambassadors not yet).

But what have I done all this time? Mainly looking around in some parts of the project, helping with little thinks like wiki editing, scripts for metrics, documenting SOPs, testing the kernel in a lot of machines, and review and vote tags in my dead times. Here the the bar char:


I have learned a lot from this great community and mainly from the most committed people in it. So at this time I have some personal heroes:

  • Kevin Fenzi
  • Justin W. Flory
  • Eduard Lucena
  • Radka Janek
  • James “Ben” Williams
  • Sachin S. Kamath
  • Bhagyashree

They are amazing people (and bunny) and they are a lot more active in the fedora project than I, thanks for be my inspiration

My Lenovo thinkpad T440s has the next product number:

$ cat /sys/class/dmi/id/product_name

So all the procedures show here are valid for this product

Fist and if you don’t install thinkfan, lm_sensors and hdapsd before:

$ sudo dnf install thinkfan hdapsd lm_sensors
$ sudo sensors-detect
$ sudo sh -c "find /sys/devices -type f -name 'temp*_input' | xargs -I {} echo "hwmon {}" >> /etc/thinkfan.conf"
$ sudo systemctl enable thinkfan

The next step is install tlp and prepare other tools for manage kernel modules:

sudo dnf install tlp tlp-rdw kernel-devel akmods kmodtool

We need to enable external repositories:

$ sudo dnf install$(rpm -E %fedora).noarch.rpm
$ sudo dnf install

Now this is the last part of the installation, but read carefully this warning:

The next instructions are no recommended, we use the --nogpgcheck , so we not only use a external repository, we don’t check the sing the packages.

If you are comfortable with this just:

sudo dnf install akmod-tp_smapi akmod-acpi_call --enablerepo tlp-updates-testing --nogpgcheck

The --enablerepo tlp-updates-testing is necessary for fedora 25+ versions.

Now you can have a very well use and administration of your batteries 🙂

Many thanks to linrunner and the TLP project.

i3wm is a Tiling window manager than has a lot options to custom and low hardware requirements. One most complete guide to i3 in fedora is the amazing Fedora Magazine article “Getting started with the i3 window manager” by William Moreno.

Getting started with the i3 tiling window manager

In my case only want to talk about one custom set of applications than we can use together

sudo dnf install i3 i3status dmenu i3lock feh tmux tilda network-manager-applet

This packages are:

  • i3: Window Manager
  • i3status: Bar of system information
  • dmenu: application launcher
  • i3lock: Screen Locker
  • feh: to set a wallpaper
  • tmux: terminal multiplexer
  • tilda: Customizable Terminal emulator
  • network-manager-applet: Applet to manage network connections

Changing to i3 in GDM:

After configuring the basic of i3, I add the next lines to my .config/i3/config

exec --no-startup-id feh --bg-scale ~/Pictures/fox.jpg # cute wallpaper
exec --no-startup-id nm-applet # network manager applet 
exec --no-startup-id tilda  #tilda terminal emulator


Start tilda for the first time using dmenu $mod + d tilda, and configure as you wish, my particular setup is the next:



and the result:


Oh My Zsh is an AMAZING open source, community-driven framework for managing your zsh configuration.


To use it in fedora, we need install zsh and some user utils to :

$ sudo dnf install zsh util-linux-user git


The next step is just download and run the installation script

$ sh -c "$(wget -O -)"

Once the installation is finished you will be using the brand new oh-my-zsh 🙂


Oh-my-zsh has a lot of useful plugins, they can be activated on ~/.zshrc, By default only the git plugin is enabled, in my personal case, I’m using the next plugins:

  • git
  • python
  • pyenv
  • dnf
  • fedora

Plugins in my ~/.zshrc

the complete list of plugins available are here.


oh-my-zsh has a lot of themes, the examples are here. One of the favorites is the agnoster theme.

Agnoster theme


To configure the themes also need edit ~/.zshrc. I use a random selection of themes

Random themes


Occasionally Oh-my-zsh ask you to check updates (this will be disable on your ~/.zshrc) and if you want do a mauna update just run:



On-my-zsh is not for everyone, so if you want uninstall it just type:


And if you also want uninstall zsh:

$ sudo dnf remove zsh

Special thanks to:

Robby Russell and the people of Planet Argon for the wonderful/amazing/awesome Oh-My-zsh