[Lugor] Fwd: ExpertsLogIn: Security Issue, Wifi Passwords Are Not Encrypted In Ubuntu Systems

Do Jan 2 09:08:03 CET 2014

Moin zusammen,

hier ist ein Artikel, der für einige von euch interessant sein könnte.
Auf meinem Xubuntu-Rechner ist die entsprechende Datei
(/etc/NetworkManager/system-connections/<SSID>), in der die
Informationen gespeichert werden, allerdings nur für root einsehbar,
obwohl der Haken 'Für alle User verfügbar' gesetzt ist.

VG

Stefan

-------- Original-Nachricht --------
Betreff: 	ExpertsLogIn: Security Issue, Wifi Passwords Are Not Encrypted
In Ubuntu Systems
Datum: 	Tue, 31 Dec 2013 09:52:18 +0000
Von: 	LinOxide <info at expertslogin.com>
An: 	s.abeln at freenet.de

LinOxide

  ExpertsLogIn: Security Issue, Wifi Passwords Are Not Encrypted In
  Ubuntu Systems <http://linoxide.com>

------------------------------------------------------------------------

Security Issue, Wifi Passwords Are Not Encrypted In Ubuntu Systems
<http://feedproxy.google.com/%7Er/linoxideblog/%7E3/vnh6FIHb8zY/?utm_source=feedburner&utm_medium=email>

Posted: 30 Dec 2013 07:00 PM PST

Dear *ubuntu* user,

This article is very important for you! Did you know that wifi passwords
are not encrypted on Ubuntu systems? They are stored in clear text in a
folder outside the home folder so they are accessible for unwanted users.

This issue has been reported and a Canonical developer has explained in
the mailing lists how to fix it. Are you guys curious to know what
causes this issue?

This issue is caused by the fact that ‘Available To All Users’ option is
enabled by default. You can easily disable this option from the
graphical user interface and everything will be fixed.

1. Go to the network indicator.

2. Click on *Edit Connections*.

3. Go to *Wireless*.

wifi passwords are not encrypted in ubuntu systems

wifi passwords are not encrypted in ubuntu systems

4. Select your Wireless Network Connection and click on *Edit*.

wifi passwords are not encrypted in ubuntu systems

5. Untick *Available To All Users* option.

wifi passwords are not encrypted in ubuntu systems

wifi passwords are not encrypted in ubuntu systems

6. Click on *Save * and it is fixed.

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The post Security Issue, Wifi Passwords Are Not Encrypted In Ubuntu
Systems
<http://linoxide.com/ubuntu-how-to/wifi-passwords-encrypted-ubuntu/>
appeared first on LinOxide <http://linoxide.com>.

How To Limit CPU Usage Of A Process In Linux With cpulimit Tool
<http://feedproxy.google.com/%7Er/linoxideblog/%7E3/k68qYUlu2i4/?utm_source=feedburner&utm_medium=email>

Posted: 30 Dec 2013 05:00 AM PST

While administering your linux system you need to limit the CPU usage of
a process, but what is the *right* tool to do it? Have you ever used
*cpulimit*?

cpulimit is a nice command-line tool written in C programming language
for limiting the CPU usage of a process by acting on the executable
program file, absolute path name of the file or the *PID* of the file.

The following screenshot is a nice way to inform the reader about the
*cpulimit* tool.

how to limit the cpu usage of a process in linux with the cpulimit tool

    Install The cpulimit Tool In Linux

Install cpulimit in Ubuntu with the following command.

    sudo apt-get install cpulimit

How about installing it in *Fedora*?

    sudo yum install cpulimit

    How To Use the cpulimit Tool

If you want to limit the cpu usage by acting on the executeable program
file you need to use the *-e* option. The *-l* option in the following
command is used to designate the percentage of CPU allowed from 0 to 100.

    cpulimit -e test.exe -l 50

Do you like to limit the cpu usage of a program or a script running in
your linux machine by acting on the specific process id? Before doing
that you need to find the PID of the process that is using all your CPU
time with the following command.

    top

how to limit the cpu usage of a process in linux with the cpulimit tool

*Then* use the following command.

    cpulimit -p PID -l 50

You can also limit the cpu usage of a program by using the cpulimit tool
to act on the absolute pathname of the program with the following command.

    cpulimit -P /usr/bin/test -l 50

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  * How To Monitor Network Load in Ubuntu With slurm Tool
    <http://linoxide.com/ubuntu-how-to/monitor-network-load-slurm-tool/>
  * Visualize System’s Activity With ranwhen.py Tool in…
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  * Linux – Limit Process At User Level
    <http://linoxide.com/linux-command/linux-limit-process-at-user-level/>

The post How To Limit CPU Usage Of A Process In Linux With cpulimit Tool
<http://linoxide.com/tools/limit-cpu-usage-process-linux/> appeared
first on LinOxide <http://linoxide.com>.

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