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Fedora 27 Screen Saver

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Just back from Oracle OpenWorld and somebody desperately wants to know how to disable the 5 minute default screen saver setting in the KDE environment. OK, you navigate to the Fedora “f” in the lower left hand corner and choose System Settings, like:

In the System Setting menu page, select Desktop Behavior:

In the Desktop Behavior dialog, select Screen Locking. Change the default to something large like 90 for 1 and half hours.

As always, I hope that solves your problem.

Written by maclochlainn

October 27th, 2018 at 12:33 am

Fedora User Manager

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As one of my students pointed out, Fedora doesn’t install a GUI user management tool installed by default. That’s true. It’s easy to install. You can install it as the root user, like:

yum install -y system-config-users

It should generate a screen console output like this when successfully installed:

Loaded plugins: langpacks, refresh-packagekit
http://yum.postgresql.org/9.3/fedora/fedora-20-x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
Resolving Dependencies
--> Running transaction check
---> Package system-config-users.noarch 0:1.3.6-1.fc20 will be installed
--> Processing Dependency: libuser-python >= 0.56 for package: system-config-users-1.3.6-1.fc20.noarch
--> Processing Dependency: python-pwquality for package: system-config-users-1.3.6-1.fc20.noarch
--> Running transaction check
---> Package libuser-python.x86_64 0:0.60-3.fc20 will be installed
---> Package python-pwquality.x86_64 0:1.2.3-1.fc20 will be installed
--> Finished Dependency Resolution
 
Dependencies Resolved
 
================================================================================
 Package                   Arch         Version             Repository     Size
================================================================================
Installing:
 system-config-users       noarch       1.3.6-1.fc20        updates       332 k
Installing for dependencies:
 libuser-python            x86_64       0.60-3.fc20         fedora         51 k
 python-pwquality          x86_64       1.2.3-1.fc20        fedora         11 k
 
Transaction Summary
================================================================================
Install  1 Package (+2 Dependent packages)
 
Total download size: 395 k
Installed size: 1.9 M
Downloading packages:
(1/3): libuser-python-0.60-3.fc20.x86_64.rpm                |  51 kB  00:00     
(2/3): python-pwquality-1.2.3-1.fc20.x86_64.rpm             |  11 kB  00:00     
(3/3): system-config-users-1.3.6-1.fc20.noarch.rpm          | 332 kB  00:00     
--------------------------------------------------------------------------------
Total                                              212 kB/s | 395 kB  00:01     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction (shutdown inhibited)
  Installing : python-pwquality-1.2.3-1.fc20.x86_64                         1/3 
  Installing : libuser-python-0.60-3.fc20.x86_64                            2/3 
  Installing : system-config-users-1.3.6-1.fc20.noarch                      3/3 
  Verifying  : system-config-users-1.3.6-1.fc20.noarch                      1/3 
  Verifying  : libuser-python-0.60-3.fc20.x86_64                            2/3 
  Verifying  : python-pwquality-1.2.3-1.fc20.x86_64                         3/3 
 
Installed:
  system-config-users.noarch 0:1.3.6-1.fc20                                     
 
Dependency Installed:
  libuser-python.x86_64 0:0.60-3.fc20   python-pwquality.x86_64 0:1.2.3-1.fc20  
 
Complete!

You can verify the GUI user management tool is present with the following command:

which system-config-users

It should return this:

/bin/system-config-users

You can run the GUI user management tool from the root user account or any sudoer account. The following shows how to launch the GUI User Manager from a sudoer account:

sudo system-config-users

It will generate the following GUI User Manager screen:

As always, I hope this helps those trying to do some that should be a basic task that seems to get lost form the books and manuals beginners use.

Written by maclochlainn

April 24th, 2018 at 10:05 pm

Linux User-Group Console

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This post shows you how to add the menu option and GUI to set users and groups. It’s quite a bit easier than mastering all the command-line syntax. It makes setting up the required user and group accounts for an Oracle Enterprise or MySQL database solution much easier.

You add the utility by calling the yum (Yellowdog Updater, Modified) utility like this:

yum installed -y system-config_users

You should see the following:

Loaded plugins: langpacks
adobe-linux-x86_64                                       |  951 B     00:00     
ol7_UEKR3                                                | 1.2 kB     00:00     
ol7_latest                                               | 1.4 kB     00:00     
Resolving Dependencies
--> Running transaction check
---> Package system-config-users.noarch 0:1.3.5-2.el7 will be installed
--> Processing Dependency: system-config-users-docs for package: system-config-users-1.3.5-2.el7.noarch
--> Running transaction check
---> Package system-config-users-docs.noarch 0:1.0.9-6.el7 will be installed
--> Processing Dependency: rarian-compat for package: system-config-users-docs-1.0.9-6.el7.noarch
--> Running transaction check
---> Package rarian-compat.x86_64 0:0.8.1-11.el7 will be installed
--> Processing Dependency: rarian = 0.8.1-11.el7 for package: rarian-compat-0.8.1-11.el7.x86_64
--> Processing Dependency: rarian for package: rarian-compat-0.8.1-11.el7.x86_64
--> Processing Dependency: librarian.so.0()(64bit) for package: rarian-compat-0.8.1-11.el7.x86_64
--> Running transaction check
---> Package rarian.x86_64 0:0.8.1-11.el7 will be installed
--> Finished Dependency Resolution
 
Dependencies Resolved
 
================================================================================
 Package                      Arch       Version           Repository      Size
================================================================================
Installing:
 system-config-users          noarch     1.3.5-2.el7       ol7_latest     337 k
Installing for dependencies:
 rarian                       x86_64     0.8.1-11.el7      ol7_latest      97 k
 rarian-compat                x86_64     0.8.1-11.el7      ol7_latest      65 k
 system-config-users-docs     noarch     1.0.9-6.el7       ol7_latest     307 k
 
Transaction Summary
================================================================================
Install  1 Package (+3 Dependent packages)
 
Total download size: 805 k
Installed size: 3.9 M
Downloading packages:
(1/4): rarian-0.8.1-11.el7.x86_64.rpm                      |  97 kB   00:00     
(2/4): rarian-compat-0.8.1-11.el7.x86_64.rpm               |  65 kB   00:00     
(3/4): system-config-users-1.3.5-2.el7.noarch.rpm          | 337 kB   00:00     
(4/4): system-config-users-docs-1.0.9-6.el7.noarch.rpm     | 307 kB   00:00     
--------------------------------------------------------------------------------
Total                                              830 kB/s | 805 kB  00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : rarian-0.8.1-11.el7.x86_64                                   1/4 
  Installing : rarian-compat-0.8.1-11.el7.x86_64                            2/4 
  Installing : system-config-users-1.3.5-2.el7.noarch                       3/4 
  Installing : system-config-users-docs-1.0.9-6.el7.noarch                  4/4 
  Verifying  : rarian-compat-0.8.1-11.el7.x86_64                            1/4 
  Verifying  : system-config-users-1.3.5-2.el7.noarch                       2/4 
  Verifying  : rarian-0.8.1-11.el7.x86_64                                   3/4 
  Verifying  : system-config-users-docs-1.0.9-6.el7.noarch                  4/4 
 
Installed:
  system-config-users.noarch 0:1.3.5-2.el7                                      
 
Dependency Installed:
  rarian.x86_64 0:0.8.1-11.el7                                                  
  rarian-compat.x86_64 0:0.8.1-11.el7                                           
  system-config-users-docs.noarch 0:1.0.9-6.el7                                 
 
Complete!

After successfully installing the radian, rarian-compat, system-config-users, and system-config-users-docs packages, you will find that there’s now a Users and Groups option when you navigate by clicking on Applications and then clicking on Sundry from the menu.

Menu Instructions

SQLDeveloper1

  1. You navigate to the Applications menu, and choose Sundry from the menu list and Users and Groups from the menu item to continue.

SQLDeveloper1

  1. You will be prompted for the sudoer’s password in this dialog.

SQLDeveloper1

  1. At this point, you can use the GUI interface to set users and groups.

As always, I hope this helps those trying to set users and passwords without mastering the command-line syntax.

Written by maclochlainn

May 29th, 2016 at 4:32 pm