The hard work with xinerama / dual screen was:

* set the monitor sync/refresh rate (it won't start without for an old crt not supporting ddc)

* set Option "NoAccel" "true" (screen distortions)

* touchpad only works with dual screen

* instabilities with two different cards (via / ati - resolved by using only ati card that has two VGA connectors)

Testing with: #> X -config /absolutepath/xorg.conf -verbose

xinerama xorg.conf:

Section "Files"
        FontPath        "/usr/share/X11/fonts/misc"
        FontPath        "/usr/share/X11/fonts/75dpi/:unscaled"
        FontPath        "/usr/share/X11/fonts/75dpi"
EndSection

Section "Module"
        Load    "i2c"
        Load    "bitmap"
        Load    "ddc"
        Load    "dri"
        Load "extmod"
        SubSection  "extmod"
                Option    "omit xfree86-dga"
        EndSubSection
        Load    "int10"
        Load    "vbe"
        Load    "dbe"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "ru,us"
        Option          "XkbOptions"    "grp:caps_toggle"
EndSection

Section "InputDevice"
        Identifier      "Generic Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ExplorerPS/2"
        Option          "ZAxisMapping"          "4 5"
        Option          "Emulate3Buttons"       "true"
EndSection

Section "Device"
        Identifier      "dev0"
        Driver          "via"
        BusID           "PCI:1:0:0"
        Screen          0
EndSection

Section "Device"
        Identifier      "dev1"
        Driver          "mga"
        BusID           "PCI:0:20:0"
        Screen          1
EndSection

Section "Monitor"
        Identifier  "monitor0"
        Option      "DPMS"
EndSection

Section "Monitor"
        Identifier  "monitor1"
        Option      "DPMS"
        HorizSync       28-50
        VertRefresh     60-85
EndSection

Section "Screen"
        Identifier      "screen0"
        Device          "dev0"
        Monitor         "monitor0"
        DefaultDepth    16
        SubSection "Display"
                Depth           16
                Modes           "1024x768"
        EndSubSection
EndSection

Section "Screen"
        Identifier      "screen1"
        Device          "dev1"
        Monitor         "monitor1"
        DefaultDepth    16
        SubSection "Display"
                Depth           16
                Modes           "1024x768"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        InputDevice     "Generic Keyboard"
        InputDevice     "Generic Mouse"
        Screen      "screen0"
        Screen      "screen1" RightOf "screen0"
EndSection

Section "DRI"
        Mode    0666
EndSection

Section "ServerFlags"
        Option "Xinerama" "on"
EndSection

dual head xorg.conf:

Section "ServerLayout"
        Identifier     "X.org Configured"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
        RgbPath      "/etc/X11/rgb"
        ModulePath   "/usr/lib/xorg/modules"
        FontPath     "/usr/share/fonts/X11/misc"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc"
        FontPath     "/usr/share/fonts/X11/cyrillic"
        FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/Type1"
        FontPath     "/usr/X11R6/lib/X11/fonts/Type1"
        FontPath     "/usr/share/fonts/X11/100dpi"
        FontPath     "/usr/share/fonts/X11/75dpi"
   FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
        Load  "extmod"
        Load  "GLcore"
        Load  "dbe"
        Load  "dri"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver "kbd"
        Option "CoreKeyboard"
        Option "XkbRules" "xorg"
        Option "XkbModel" "pc105"
        Option "XkbLayout" "ru,us"
        Option "XkbOptions" "grp:caps_toggle"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/input/mice"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/input/mice"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "PHL"
        ModelName    "PHILIPS 107E"
        HorizSync    30.0 - 70.0
        VertRefresh  50.0 - 160.0
        Option      "DPMS"
EndSection

Section "Monitor"
        Identifier   "Monitor1"
        VendorName   "Monitor Vendor"
        ModelName    "Monitor Model"
EndSection

Section "Device"
        Option "NoAccel" "true"
        Identifier  "Card0"
        Driver      "ati"
        VendorName  "ATI Technologies Inc"
        BoardName   "Radeon RV100 QY [Radeon 7000/VE]"
        BusID       "PCI:0:20:0"
    Screen 0
EndSection

Section "Device"
        Option "NoAccel" "true"
        Identifier  "Card1"
        Driver      "ati"
        VendorName  "ATI Technologies Inc"
        BoardName   "Radeon RV100 QY [Radeon 7000/VE]"
        BusID       "PCI:0:20:0"
    Screen 1
EndSection

Section "Screen"
        Identifier      "Screen0"
        Device          "Card0"
        Monitor         "Monitor0"
        DefaultDepth    16
        SubSection "Display"
            Depth       16
            Modes       "1024x768"
        EndSubSection
EndSection

Section "Screen"
        Identifier      "Screen1"
        Device          "Card1"
        Monitor         "Monitor1"
        DefaultDepth    16
        SubSection "Display"
            Depth       16
            Modes       "1024x768"
        EndSubSection
EndSection

Section "ServerFlags"
        Option "AllowMouseOpenFail" "true"
        Option "DontVTSwitch"   "true"
        Option "DontZap"        "true"
        Option "DontZoom"       "true"
        Option "BlankTime"      "0"
        Option "StandbyTime"    "0"
        Option "SuspendTime"    "0"
        Option "OffTime"        "0"
EndSection

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xorg ati/radeon video driver for ES1000 has DRI disabled

As a workaraound i changed ChipID in xorg.conf to "0x515a"

suggested by http://ubuntuforums.org/showpost.php?p= ... stcount=15

Section "Device"
  Identifier "ATI Technologies Inc ES1000"
  Driver "ati"
  ChipID 0x515a
EndSection

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---

date in unix timestamp: date +%s

convert unix timestamp to date: date --date "Jan 1, 1970 00:00:00 +0000 + $1 seconds"

set date with unix timestamp: date -s "Jan 1, 1970 00:00:00 +0000 + $1 seconds"


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I want to rsync on my local-host via ssh from a remote host without a ssh enabled root account but full access to the whole filesystem.

local-host:

ssh-keygen -t rsa

copy ~/.ssh/id_dsa.pub to remote-host:/home/rsyncuser/.ssh/authorized_keys

rsync files with ssh:

rsync -vaHxr --numeric-ids --delete --rsync-path=rsync_wrapper.sh \
      -e "ssh -c arcfour -o Compression=no -x" \
      rsyncuser@remote-host:REMOTEDIR LOCALDIR

remote-host (source of files to rsync):

groupadd -g 3001 rsyncuser
useradd -u 3001 -g rsyncuser -s /bin/bash -m rsyncuser

/home/rsyncuser/.ssh/authorized_keys:

from="192.168.0.2,",command="/home/rsyncuser/validate-rsync.sh"
 ssh-dss 012345678...

limit access with from (optional).
On sucessfully ssh login command is executed.

/home/rsyncuser/validate-rsync.sh:

#!/bin/sh
case "$SSH_ORIGINAL_COMMAND" in
    *\&*)
        echo “Rejected”
        ;;
    *\;*)
        echo “Rejected”
        ;;
    *\(*)
        echo “Rejected”
        ;;
    *\{*)
        echo “Rejected”
        ;;
    *\<*)
        echo “Rejected”
        ;;
    *\`*)
        echo “Rejected”
        ;;
    rsync\ --server*)
        $SSH_ORIGINAL_COMMAND
        ;;
    *)
        echo "Rejected"
        ;;
esac

/usr/bin/rsync_wrapper.sh:

#!/bin/sh
/usr/bin/sudo /usr/bin/rsync "$@";

/etc/sudoers:

rsyncuser ALL = NOPASSWD: /usr/bin/rsync

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---

apt-get install squirrelmail-locales squirrelmail-decode ispell wngerman

ln -s /etc/squirrelmail/apache.conf /etc/apache2/conf.d/squirrelmail.conf
chgrp -R www-data /usr/share/squirrelmail/

added "de_DE ISO-8859-1" to /var/lib/locales/supported.d/local

dpkg-reconfigure locales

invoke-rc.d apache2 restart

squirrelmail-configure
10/1: de_DE

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