Fedora 26 : Install Google Chrome.

Today I try to install Google Chrome on Fedora 26.
As you know this is one of the fastest and most well liked browsers available.
First I download of the rpm file into my Downloads folder and the I used dnf command to install into Fedora 26:

$ cd ~/Downloads
$ wget https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm
$ su 
# dnf install google-chrome-stable_current_x86_64.rpm

The result, the Google Chrome browser is installed and run well.

Fedora 26 : reset root password .

Although most believe that they know the answer to this question then in Fedora 26 you have to adopt a method other than the classic one.
Start with select the boot line and press e key to edit.
Find the line with linux16 and add this on the end of this row:

rd.break

Press Ctr+x or F10 keys to reboot.

#mount | grep root
#mount -o remount,rw /sysroot
#mount | grep root
#chroot /sysroot/
#passwd root
...
#touch /.autorelabel
#exit
#reboot

Now you can use the new password for user root to login the system.
I try the old way with init=/bin/bash but I got a panic kernel ( maybe is the SELinux performs a complete file system relabel).
Anyway this solve my problem with reset the root password on Fedora 26 Server.

About rd.break, this interrupt the boot process before control is passed from initramfs to systemd.
The disadvantage of this method is that it requires more steps, includes having to edit the GRUB menu, and involves choosing between a possibly time consuming SELinux file relabel or changing the SELinux enforcing mode and then restoring the SELinux security context for /etc/shadow/ when the boot completes.

News: Adobe is planning to end-of-life Flash.

According to this article, Adobe is planning to end-of-life Flash.

This will happen at the end of 2020 and encourage content creators to migrate any existing Flash content to these new open formats.
Adobe will also remain fully committed to working with partners ( Apple, Facebook, Google, Microsoft and Mozilla) to maintain the security and compatibility of Flash content.

The article was posted by ADOBE CORPORATE COMMUNICATIONS ON JULY 25, 2017.

News: Mozilla try recognition systems .

The recognition systems improve the more people use them, but they are closed systems so no one other than Apple, Amazon, or Google.
The project named Project Common Voice website includes an option to donate your voice.
If you opt to do so, a number of sentences will be popped up in your web browser for you to say. Once recorded, you can play them back to check they are acceptable before submitting them to help the voice recognition engine learn.
You need to read a sentence to help our machine learn how real people speak.
The area of interest for this project come with demographic data. You can try this project on the official website.

News: Google startup program .

This is a new way to start your Google work.
This is a great idea from google maybe some team will agree with this help.
The goals from the Google team to do that is:
FEATURES:

• GCP and Firebase Credits 
• Office Hours 
• 24/7 Support 
• G Suite Online Training 
• Advertising for Startups 

The credits come with:
SPARK PACKAGE Get $20,000 in credit for 1 year. Credit can be applied to all Google Cloud Platform and Firebase products.
SURGE PACKAGE Get $100,000 in credit for 1 year. Credit can be applied to all Google Cloud Platform and Firebase products.

Fedora 26 server 64bit - tested VM.

I install Fedora 26 into simple way with the Netinstall Image (64-bit 484MB ) from here.
I used the last VirtualBox to test this Fedora 26 net image.
It took some time because the hardware used is without the dedicated video card and an I5 processor. The basic idea of this test was to see how to install it.
It's interesting to watch: the number of packages installed per time unit, the startup steps for the base installation and the work environment.
The other steps are more complex because it matters what you want to do with this linux. It depends on how much you want to adapt it to your hardware machine or whether you will make it a web server, ftp, sftp or a graphics rendering or video rendering station.
The total installation time in VirtualBox was one hour and seven minutes. The resulting video was modified by changing the number of frames for a faster viewing, (from 72 to 172).
The reason was the first steps to install Fedora not to set a specific linux server.
I use linux command under root account to install and set Fedora 26:

#dnf update 
#dnf upgrade 
#dnf grouplist 
#dnf grouplist -v
#dnf install @cinnamon-desktop
#dnf -y group install "Fedora Workstation"
#dnf install setroubleshoot
#sestatus
#sestatus -v
#getenforce
#dnf install clamtk
#echo "exec /usr/bin/cinnamon-session" >> ~/.xinitrc
#startx

Let's see the record video of this test install :

News: Send files on WhatsApp.

The WhatsApp software lets users share multimedia content, but you can't send files directly to other users.
If you wanted to send unsupported file formats like .apk, .zip etc, you had to rename the file to a supported file format.
For example, if you wanted to send the apk for your favorite app, you’d rename it such that it ends with .txt. I tested with Whatsapp™ For PC extension - Opera add-ons and works great.
I send a document file (.doc) with an approximate size of 5 Mb, without any interruption of the connection and a fluid transfer to the application.

Note:

You need to know also, there’s a limit of 100 MB to any attachment.
The executable file is not allowed ( like: .exe, .dll).
Meanwhile, messaging app Telegram is still leading the pack when it comes to file size restrictions — it has supported 1.5 GB files since its launch.

News: Linux kernel 4.12 released .

On 2 July, Linus Torvalds released the kernel 4.12, and it is available for download on kernel.org.
Linux 4.12 provides support for USB Type C in the form of a port management - that provides the correct power consumption.
Some significant changes are once again from the AMD-GPU driver.
About Data Integrity Protection, the device mapper driver receives an extension called dm_integrity to check the integrity of encrypted data on block devices and to protect it in the long term.
Read more about this news here.

DB Browser - tool for databases.

Also is a good tool for learning and test database queries.
About this tool the development team tells us:

DB Browser for SQLite is a high quality, visual, open-source tool to create, design, and edit database files compatible with SQLite. It is for users and developers wanting to create databases, search, and edit data. It uses a familiar spreadsheet-like interface, and you don't need to learn complicated SQL commands. 

• Controls and wizards are available for users to: 
• Create and compact database files 
• Create, define, modify and delete tables 
• Create, define and delete indexes 
• Browse, edit, add and delete records Search records 
• Import and export records as text 
• Import and export tables from/to CSV files Import and export databases from/to SQL dump files 
• Issue SQL queries and inspect the results 
• Examine a log of all SQL commands issued by the application

Under Fedora distro, the package is named: SQLite browser.
To install it just use this:

$ sudo dnf install sqlitebrowser

You can use also with this OS: Windows, macOS X, OSX 10.8 (Mountain Lion) - 10.12 (Sierra), Linux (Arch Linux, Fedora and Ubuntu, and Derivatives).

Best password management tool.

This suite of tools come with many features free and one good premium option.
The Password Tote tools provides secure password management through software and services on multiple platforms and work very well with software downloads for Windows, Mac OS X, Safari, Chrome, Firefox, iOS (iPhone, iPod Touch, iPad), Android.
You can download this from downloads page.

Features Outline	Free	Premium
Website Access	●
Browser Extensions	●
Desktop Software		●
Mobile Software		●
Password Sharing		●
YubiKey Support	●
Price	Free	$2.99 a month or 2 Years at a 16% savings
Description	This will allow you to use the website version completely free. It also gives you access to fill your passwords from the browser extensions. It does not provide access to the desktop software or mobile phone software.	Premium gives you access to your passwords from all versions of Password Tote, including the desktop software and mobile phone versions.

Synchronization between browser extensions and utilities is fast and does not confuse the user in navigation. Importing files is fast for the csv file dedicated to dozens of passwords.
A very good aspect was the compromise solution for custom import with a generic csv file.
The utility generates this file and you can fill it with the necessary login data for your web sites.
The other csv import options did not work for me, I guess the problems are incompatible with the other files exported by the dedicated software.
I used it with YubiKey and it worked very well. It's the only utility that allowed me to connect with YubiKey, the other utilities demand a premium version.

How to enable YubiKeys and password tote.

• First log in to your Password Tote account. 
• Click Account, then Manage YubiKeys. You will arrive at the YubiKey Management page. 
• Click Add YubiKey to register your YubiKey with your Password Tote account. 
• Fill in the required details. If successful, your YubiKey will be displayed in the list as shown in the screen shot below.

The tool Noodl for design and web development.

This tool will help you understand something about data structuring, node building, web development and design.
This application comes with interactive lessons and documentation.
Note: I tested some lessons and are not very easy. Thus, some links between the nodes do not appear with all the labels, unless they are made inversely, in this case on the work surface the links are no longer one-way (with the arrow arrow) but only punctually between the nodes.
It can be downloaded here for the following operating systems :

• Version 1.2.3 (MacOS)
• Version 1.2.3 (Win x64 Installer)
• Version 1.2.3 (Linux x86 64)

Let's see the default interface of Noodl application.

The JetBrains I.D.E. software .

I tested the JetBrains Rider, the emerging .NET I.D.E. from JetBrains in the past.
Is good and this is new into the I.D.E. area of development.
What is this software? 
The JetBrains Rider is a new .NET I.D.E. based on the IntelliJ platform and ReSharper.
First I take a look into my Fedora distro to see it is something about JetBrains:

[root@localhost mythcat]# dnf search jetbrains
Last metadata expiration check: 1:19:59 ago on Tue Feb 21 12:42:57 2017.
============================ N/S Matched: jetbrains ============================
jetbrains-annotations-javadoc.noarch : Javadoc for jetbrains-annotations
jetbrains-annotations.noarch : IntelliJ IDEA Annotations

I download the archive from the official website. I extract all files ...

[mythcat@localhost ~]$ cd Rider-171.3085.362/bin/
[mythcat@localhost bin]$ ll
total 7120
-rw-r--r--. 1 mythcat mythcat    2568 Feb 15 23:02 backend-log.xml
-rwxr-xr-x. 1 mythcat mythcat     217 Feb 15 23:02 format.sh
-rwxr-xr-x. 1 mythcat mythcat   23072 Feb 15 23:02 fsnotifier
-rwxr-xr-x. 1 mythcat mythcat   29648 Feb 15 23:02 fsnotifier64
-rwxr-xr-x. 1 mythcat mythcat   26453 Feb 15 23:02 fsnotifier-arm
-rw-r--r--. 1 mythcat mythcat   10491 Feb 15 23:02 idea.properties
-rwxr-xr-x. 1 mythcat mythcat     268 Feb 15 23:02 inspect.sh
-rw-r--r--. 1 mythcat mythcat 3449944 Feb 15 23:02 libyjpagent-linux64.so
-rw-r--r--. 1 mythcat mythcat 3679036 Feb 15 23:02 libyjpagent-linux.so
-rw-r--r--. 1 mythcat mythcat    4138 Feb 15 23:02 log.xml
-rwxr-xr-x. 1 mythcat mythcat     410 Feb 15 23:02 printenv.py
-rwxr-xr-x. 1 mythcat mythcat     590 Feb 15 23:02 restart.py
-rw-r--r--. 1 mythcat mythcat     359 Feb 15 23:02 rider64.vmoptions
-rw-r--r--. 1 mythcat mythcat    9222 Feb 15 23:02 rider.png
-rwxr-xr-x. 1 mythcat mythcat    6619 Feb 15 23:02 rider.sh
-rw-r--r--. 1 mythcat mythcat     367 Feb 15 23:02 rider.vmoptions

After that, I started with rider.sh script:

[mythcat@localhost bin]$ ./rider.sh 
[YourKit Java Profiler 2016.02-b43] Log file: /home/mythcat/.yjp/log/Rider10-17590.log
Feb 21, 2017 2:05:43 PM java.util.prefs.FileSystemPreferences$6 run
WARNING: Prefs file removed in background /home/mythcat/.java/.userPrefs/prefs.xml
Installation home directory: /home/mythcat/Rider-171.3085.362
System directory: /home/mythcat/.Rider10/system
Config directory: /home/mythcat/.Rider10/config
Log directory: /home/mythcat/.Rider10/system/log
Full cold solution load with caches took 22053 milliseconds.

The result of this command was great.
This software come with a good wizard interface.
The application has many ways to deal with your source code and settings for any user. The colors of this software are ergonomic for users. They are:

• Memory: 4 GB or higher
• Operating system:
  • Windows 10, 8.1, 8 or 7. 64-bit distributions only.
  • OS X 10.10+. 64-bit distributions only.
  • Linux. 64-bit distributions only.

Fedora 25 and fix python modules.

This tutorial is a simple way to fix your python modules under Fedora distro.
I used Fedora 25 and python 2.7.13 version.
First try to use this command:

pip freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 pip install -U

This command will try to update based by:

• to skip "-e" package definitions;
• the newer versions of pip allow you to list outdated python modules;
• added -n1 to xargs, prevents stopping everything if updating one python module fails;

If you got this error about Python.h error:

...fatal error: Python.h...

Use this command to install the development library of Python:

[root@localhost mythcat]# dnf install python-devel.x86_64 python-devel.i686

Try to install also the devel libs for each error include.
Another example is this lib: opensslv.h
So install this:

[root@localhost mythcat]# dnf install openssl-devel.x86_64 
Last metadata expiration check: 1:58:33 ago on Thu Apr 20 18:52:10 2017.
Dependencies resolved.
================================================================================
 Package              Arch          Version                Repository      Size
================================================================================
Installing:
 openssl-devel        x86_64        1:1.0.2k-1.fc25        updates        1.5 M

Transaction Summary
================================================================================
Install  1 Package

Total download size: 1.5 M
Installed size: 3.1 M
Is this ok [y/N]: y
Downloading Packages:
openssl-devel-1.0.2k-1.fc25.x86_64.rpm          580 kB/s | 1.5 MB     00:02    
--------------------------------------------------------------------------------
Total                                           394 kB/s | 1.5 MB     00:03     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Installing  : openssl-devel-1:1.0.2k-1.fc25.x86_64                        1/1 
  Verifying   : openssl-devel-1:1.0.2k-1.fc25.x86_64                        1/1 

Installed:
  openssl-devel.x86_64 1:1.0.2k-1.fc25                                          

Complete!

Try to run again the first command:

pip freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 pip install -U

See the first result of list outdated python modules:

[root@localhost mythcat]# pip list --outdated --format=freeze
CCColUtils==1.4
cryptography==1.5.3
evdev==0.6.1
fedmsg==0.18.2
ipykernel==4.5.2
M2Crypto==0.25.1
matplotlib==1.5.2rc2
mercurial==3.8.1
mysqlclient==1.3.7
psutil==4.3.0
pycryptopp==0.6.0.1206569328141510525648634803928199668821045408958
pyopencl==2015.2
pyOpenSSL==16.0.0
pyxattr==0.5.3
requests-kerberos==0.10.0
service-identity==14.0.0
Sphinx==1.5.3
SQLAlchemy==1.1.6
Tempita==0.5.1
tornado==4.4.2
Twisted==16.3.0
txZMQ==0.7.4

After this steps the result is this:

[root@localhost mythcat]# pip list --outdated --format=freeze
mysqlclient==1.3.7
pyopencl==2015.2
pyxattr==0.5.3

I will fix this next time.