Problem:

• Festplatten brummen in PC Gehaeuse, Schwingungen werden uebertragen.
• Harddrive rotations transmitted by case parts and acousitc boosted up

• Professionelle Produkte zum entkoppeln kosten bis 30 Euro.
• Professional Parts must be paid up to 40 Dollars/Drive

Lösung:  “Null Euro” Lösung – “Zero Dollar” Solution

• Festplatten im 5.25 Zoll Laufwerk auf Einmachgummis haengen
• Harddrives mounted on grommets of old botteling jars

Problem: If you use IDE or SATA Disc Drives inside your Workstation or Server without a additional uninterruppted power supply after a power loss your Disc Drives can lose data, do not boot clean up agian or damage the drive headers and sectors.

Background: SATA or IDE Drives uses “Disc Cached Controllers”, the count of this disc cache reach from 8 to 64 megabytes. In case of data write to disc, the disc controllers do cache some data who are often used. A Raid 1 Disc Mirror is affected too by this problem. SCSI od SAS are not using Cache by default.

Solution:

Install the software tool called hdparm to set the cache parameters to disabled, cause most of operating systems have enabled by default.

1. at Debian/ubuntu do : # sudo aptitude install hdparm
2. at Centos/Redhat do:  #sudo yum install hdparm

now lets show discs which are installed:

1. at Debian/ubuntu do: # sudo fdisk -l
2. at Centos/Redhat do: #sudo  /sbin/sfdisk -l
3. at FreeBSD do: # fdisk -l

yet lets take settings to disable the cache on every boot:

1. at all linux do: sudo nano /etc/rc.local
2. insert for every drive hdarm -W 0 /dev/sdX (X is for a to …)
3. at FreeBSD  do : #vi /etc/loader.conf
4. insert once for all drives  hw.ata.wc="0"

Remarks:

1. If you have two drives with same physical size inside your PC config a mdadm Software Raid 1 additional on your System.
2. Set the PC Bios Settings to auto boot ofter power failure and plug off the power on you testing System, check the results. There should not be needed a check disk called fsck after the Test, but its better to do it.
3. Hardware Raid Controllers do often have RAM Cache too, size 128MB up to 2GB, at power loss these Data lost, this can only be surpressed by a addtition RAM Cache Backup Battery connected to the Hardware Raid Controller

 

Problem: By default Debian with GDM3 is slow on older Hardware like Laptops or PCs with small Graphic Card

Background: GDM3 shows Images at size 800×600 an zooms up to Screen Size, this burns speed.

Solution:
edit gdm3-theme config
sudo nano /usr/share/gdm/greeter-config/20_debian
and change to

#Use a specific background
#/desktop/gnome/background/picture_filename /..path #to wallpaper
#/desktop/gnome/background/picture_options zoom #zoom
/desktop/gnome/background/primary_color #357DAA # color Win2000

# Theming options
#/desktop/gnome/interface/gtk_theme Clearlooks

# Greeter options
#/apps/gdm/simple-greeter/logo_icon_name debian-swirl

# Play system beeps - especially the one when the greeter is ready
#/desktop/gnome/sound/event_sounds true

# Some other possible options
#/apps/gdm/simple-greeter/banner_message_enable true
#/apps/gdm/simple-greeter/banner_message_text Welcome
#/apps/gdm/simple-greeter/disable_restart_buttons false
#/apps/gdm/simple-greeter/disable_user_list false

# The lower panel doesn't work with the compositor
/apps/metacity/general/compositing_manager false

# Prevent the power management icon from showing up
/apps/gnome-power-manager/ui/icon_policy never

reboot and enjoy…

Additional Info:

• Install “metacity” window manager its needed by gdm3 too on openbox or LXDE Desktops
• If “desktop-base” is not installed the gdm3 background is shown lime green then create a empty file named

sudo nano /usr/share/gdm/greeter-config/10_desktop-base

If you want to listen your loved Internet Radio (i like Country-FM)
at your Home you can buy a high priced Internet Radio, but you
don’t need it.

“LineX FM Transmitter China” is a battery powered is the “BEST”
FM Transmitter who can transmit up to 8 different radio
frequency’s and do have perfect very CLEAR Sound!!

I take a cheap LineX FM Transmitter plug it into my old
Ubuntu Laptop open VLC Media Player (preactivated Shoutcast Radio at
VLC settings) and on ever old FM Radio at my Home i can listen my
private Radio. Try to use LineX and the Laptop at the upper
loft if you have cause FM Frequency needs high points to reach all
of your Radios.

..enjoy..listening..

Today i got new parts for my workstation:

- Phenom X6 1090T
- Asus M4N75TD AM3
- 8GB RAM 1333Mhz from Kingston 4x 2GB Kingston HyperX
- Graphic Card Nvidia 8400GS Low Noise (fanless)

runs well as low noise workstation!
tests following…

Board works on:
- FreeBSD 8.0 (nforce 750)
- Debian Lenny 5.0 AMD64
- Ubuntu 10.04
- Centos 5.4 / SME Server 8.0beta5

works NOT: cause nforce SATA chip not recognized! by setup CD
- Centos 4/5
- Redhat
- FreeBSD 7

Powerconsumption as Server 130Watt/h without DVD and Graphiccard 103Watt/h with 6 Cores at 3600Mhz
Temp 32 degrees Idle most not over 45degrees CPU usage

Costs:
Case 20Euro
Parts 720Euro
at:
www.mindfactory.de fast Reseller, fast shipping..

Get-Debian-Installer-for-Windows

Get-Ubuntu-Installer-for-Windows

For older an small Desktops you can install ubuntu with LXDE

- install Win7-like Theme for folders
- change Menu Button “start”
- change Wallpaper to Classic Blue
- Window Frame Theme called “redmond openbox”
you need only some time..

and you get a very fast light Desktop!

Problem: If you have installed a mini Setup with LXDE or IceWM Deskop at your Laptop WICD can’t be opened and
crash at a half second.

Solution:

1. Login as root (temp) sudo -s
2. adduser username netdev
3. relogin as User into Desktop and use Wifi-LAN
4. if not works check /etc/wicd files for correct interface

To the Cebit 2009 Mr. Knopper published the new Knoppix CD Version 6

Download here ftp://ftp.gwdg.de/pub/linux/knoppix/

***Update: To boot without 3D-Desktop Compiz on older PCs enter at Bootline:
#knoppix no3d

New:

1. Super Fast Dektop LXDE
2. Compiz Animated Windows like Windows 7
3. Wlan WPA/WPA2 out of the Box
4. Install to RAM
5. Install to Flashdisk
6. Install to Hdd
7. Can be remasterd
8. Firefox with Scriptblocking
9. Openoffice installed
10. ..easy to handle..Perfect..!!!

Aus aktuellen Anlass zu Ihrem Schutz folgende Sicherheitstipps:

1. Gegenmittel Bundestrojaner
2. Sicheres Telefon
3. Sichere Kreditkarte

Unterlagen als PDF Datei Handbuch Hier-Download-Server

Fuer Kinder und Jugendliche ein taegliches Highlight im Internet. Source
Windows Mediaplayer / Linux VLC Player

http://playlist.yahoo.com/makeplaylist.dll?id=1369080&segment=149773

A daily highlight on the Internet for kids watch Nasa-TV

Problem:

1. Wenn Sie sich heute einen DSL Anschluss mit einem Router kaufen und das Internet Telefon nutzen, besteht das Problem, dass Sie bei einem Stromausfall niemanden anrufen koennen.

Loesung:

1. Die Firma APC (www.apc.com) verkauft in Europa eine Mini USV fuer ca. 100€ mit dieser koennen Sie den Router und den Telefonapparat fuer Stunden mit Strom versorgen

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Problem:

1. If you use a DSL router with VOIP Phone at home and the power fails you can’t make calls to someone to get help

Solution:

1. The manufacter www.apc.com sales cheap micro USV Boxes, which are able to spend the energy for a lot of hours, for your router and phone. Then you are able to call for help if your city fails to serve your home with energy. Costs in Germany 100€

In unserem Umfeld wird immer mehr Papier verschwendet, wofuer viele Baeume unnoetig gefaellt werden!

Linux hilft Ihnen Papier und Druckkosten zu sparen. Sie moechten wissen wie? Ganz einfach drucken Sie alle Dokumente in eine PDF – Datei.

Vorteil? Sie koennen Ihre Dokumente auf jedem PC lesen, egal welches Betriebsystem oder wie alt, auch nach 10 Jahren noch. Andere Dateiformate aendern sich alle 2-3 Jahre, erfordern ein umwandeln oder bearbeiten und neue eine Software! = Zusatzkosten

Bitte fuegen Sie mein Logo zu Ihrer Email Signatur und helfen so das Verstaendnis zu wecken! Danke!

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In our Computer Offices appears a daily high count of wasted print paper, cause many things are printed with no need.Linux helps to save the trees of our children, please use in Linux the PDF File Printing for your documents!It saves money and our environment.
Please copy my “save the tree’s logo” to your email signature and send it to your friends to wake them up too, thanks!

Die Pivot Funktion (das senkrechte Aufstellen eines TFT Bildschirmes) hoerte sich Anfangs gut an doch erweist sich in Praxis als voellig unbrauchbar.Da der Sichtwinkel vom Hersteller 170Grad auf die horizontale Lage ausgelegt ist, ist der senkrechte Blickwinkel nur ca.110Grad also für Pivotsnutzung absolut unbrauchbar.
Sparen Sie sich das Geld oder nehmen eine groesseren TFT.

Empfehlung Office + Photo Bearbeitung: 19″=1280x1024pixel, 20″= 1600×1200 pixel, 30″ = 2560×1600 Pixel. BEACHTEN SIE AUCH DEN STROMVERBRAUCH!!

Die Groessen: 21″-27″ sind NICHT zu empfehlen da die Bildpunktgroesse (DOTs) zu grob und die Schrift zu kantig ist.

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The pivot function for TFT Displays is unuseable cause the range view is horizontal made by factory perhaps 170degrees. For vertical use is only 110 degrees made and this range can’t be used at Office.Save the money or take a bigger Screen.I prefer to say that this sizes are useful for Office and Pictures: 19″ at 1080×1024 dpi, 20″ at 1600×1200 dpi and 30″ at 2560×1600 dpi .The sizes on: 21″ up to 27″ are not useful, cause the fonts are to edged displayed. DO HAVE A LOOK AT POWER CONSUMPTION!!

Ja Asus hat den Kracher gebaut!

Ein Mini Laptop auf Linux Basis mit Intenet, Office und Webcam, sowie vielen Schnittstellen…

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Asus had made the new hype..after ipod