-273.2°C

Post-install Ubuntu 16.04

2019-01-24T12:20:00.000-08:00

POST INSTALL UBUNTU 16.04.5

!!! in case you use ssd drive !!! (!!! undo if non-ssd !!!) :

echo -e "vm.swappiness=0" | sudo tee -a /etc/sysctl.conf

sudo nano /etc/fstab

add noatime :

noatime,errors=remount-ro 0 1

echo -e "#\x21/bin/sh\\nfstrim -v /" | sudo tee /etc/cron.daily/trim
sudo chmod +x /etc/cron.daily/trim

Check that your SSD supports TRIM (almost all recent models do) by

sudo hdparm -I /dev/sda | grep "TRIM supported"

if your SSD is /dev/sda. If it does, add

--no-model-check./sbin/fstrim --all --no-model-check || true

install System :

First things to do before updating the system :
===========================================

sudo add-apt-repository universe
sudo apt-add-repository -y ppa:hamishmb/myppa
sudo apt-add-repository -y ppa:yannubuntu/boot-repair
sudo apt-add-repository -y ppa:nemh/systemback
sudo apt-add-repository -y ppa:cubic-wizard/release
sudo apt-add-repository -y ppa:webupd8team/tor-browser
sudo apt-add-repository -y ppa:diesch/testing
sudo apt-add-repository -y ppa:teejee2008/ppa
sudo apt-add-repository -y ppa:graphics-drivers/ppa
sudo apt-add-repository -y ppa:gezakovacs/ppa
sudo add-apt-repository -y ppa:hsoft/ppa
sudo add-apt-repository -y ppa:jonathonf/ffmpeg-4
sudo add-apt-repository -y ppa:jonathonf/vlc-3

apt-get update

apt install unity-tweak-tool git compiz compizconfig-settings-manager compiz-plugins-extra conky conky-all conky-manager hddtemp

==============================================================
meanwhile it is possible to do things in parallel, like installing the theme, as soon as git is installed :

perso theme Windows 10

Windows Theme

Icons :

cd /usr/share/icons
sudo wget -c https://github.com/B00merang-Project/Windows-10-icons/archive/master.zip
unzip master.zip

rm master.zip

Theme :

cd /usr/share/themes/
git clone https://github.com/B00merang-Project/Windows-10.git

then use Unity-Tweak to change Theme & Icons sets.

==========================================================================================
youtube-dl :

sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/bin/youtube-dl
sudo chmod a+rx /usr/bin/youtube-dl

=======================
THEN IT IS TIME TO DO AN UPGRADE AND REBOOT

apt upgrade

reboot

Then, we install the most important softwares :

apt install apt aptitude rsync screen gcc gpart gparted mbr htop hwinfo iotop arj zip unzip rar unrar p7zip-full p7zip-rar atop boot-repair cifs-utils cups-pdf curl dconf-editor emacs exfat-fuse exfat-utils ffmpeg file-roller gstreamer1.0-libav gxine hardinfo libavcodec-extra libdvd-pkg libdvdread4 libmad0 libqt5concurrent5 libxine2-ffmpeg links lynx lm-sensors mc mesa-utils mp3fs mpack mpg321 mtpfs ncdu nfs-common nmon npm pavucontrol policycoreutils puddletag pv shntool synaptic sysstat systemback tagtool testdisk tree unetbootin uudeview whois wodim xfsprogs proxychains tor obfsproxy nvidia-387 curl cabextract mbr dconf-editor filezilla gthumb pavucontrol ace gnome-subtitles systemback testdisk vim vlc filezilla

Second wave (see what you can do while the following softwares are installed, in the following steps) :

apt install abcde audacity cabextract classicmenu-indicator clementine cuetools darktable devede discus dvd+rw-tools flac fontforge geany gimp gnome-panel gnome-subtitles gthumb guake handbrake icedax id3tool inkscape mailutils mkvtoolnix musescore nautilus-script-audio-convert nodejs poedit scite smartmontools smplayer stellarium tidy unison-all-gtk inkscape stellarium tor-browser shutter openshot transmission readpst fdupes ubuntu-restricted-extras dupeguru-se dupeguru-me dupeguru-pe

(shareutils ntfsutils)

Useful for getting the temperature to show in Conky :

chmod +s `which hddtemp`

/etc/fstab pour que les fichiers aillent bien dans la corbeille même s'ils proviennent de partitions ntfs
>> nota bene : change user-name by your user name, DATA and OS in this example with your eventual extra drives (you may not need these lignes so delete them in that case)

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
#
# / was on /dev/sda2 during installation
UUID=7b849ab1-f9ab-459b-9c31-ae5e968aa845 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda5 during installation
UUID=1d5994bb-a8e6-4103-b9e7-1dba495f16ec /home ext4 defaults 0 2
# swap was on /dev/sda1 during installation
UUID=b505ba7e-7490-4f0e-9239-c59821bd8516 none swap sw 0 0
# DATA
UUID=F68025CC80259461 /media/user-name/DATA ntfs defaults,locale=fr_FR.UTF-8,uid=10000 0 1
# OS
UUID=BC008F1B008EDBB0 /media/user-name/OS ntfs defaults,locale=fr_FR.UTF-8,uid=1000 0 1

Sound issues :

https://askubuntu.com/questions/775523/after-updating-to-16-04-bluetooth-audio-a2dp-mode-stopped-working

vim /etc/bluetooth/audio.conf
and insert this :

# Configuration file for the audio service # This section contains options which are not specific to any # particular interface [General] Enable=Gateway,Source # Switch to master role for incoming connections (defaults to true) Master=true # If we want to disable support for specific services # Defaults to supporting all implemented services #Disable=Gateway,Source,Socket Disable=Socket # SCO routing. Either PCM or HCI (in which case audio is routed to/from ALSA) # Defaults to HCI #SCORouting=HCI # Automatically connect both A2DP and HFP/HSP profiles for incoming # connections. Some headsets that support both profiles will only connect the # other one automatically so the default setting of true is usually a good # idea. AutoConnect=true # Headset interface specific options (i.e. options which affect how the audio # service interacts with remote headset devices) [Headset] # Set to true to support HFP, false means only HSP is supported # Defaults to true HFP=true # Maximum number of connected HSP/HFP devices per adapter. Defaults to 1 MaxConnected=2 # Set to true to enable use of fast connectable mode (faster page scanning) # for HFP when incoming call starts. Default settings are restored after # call is answered or rejected. Page scan interval is much shorter and page # scan type changed to interlaced. Such allows faster connection initiated # by a headset. FastConnectable=true # Just an example of potential config options for the other interfaces #[A2DP] #SBCSources=1 #MPEG12Sources=0

Edit /etc/pulse/default.pa and comment out the line #load-module module-bluetooth-discover

Virtualbox :

https://www.virtualbox.org/wiki/Linux_Downloads

Step 1: Add VirtualBox Repository Key

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

Step 2: Add VirtualBox Repository

sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian `lsb_release -cs` contrib"

Step 3: Installing VirtualBox

sudo apt remove virtualbox virtualbox-5.1

sudo -s -H

apt-get clean
rm /var/lib/apt/lists/*
rm /var/lib/apt/lists/partial/*
apt-get clean
apt-get update
sudo apt update sudo apt-get -y install gcc make linux-headers-$(uname -r) dkms
sudo apt-get update

sudo apt-get install virtualbox-5.2

-- OR --

sudo apt-get install virtualbox-6.0

don't forget to add the extensions ! (allows to capture and integrates more properly the keyboard and mouse, etc. from linux drivers into windows generic drivers)
Beware with the following line (dangerous as it might mix the version numbers, better to use manual download of the extension, and upload in VirtualBox via its main parameters menu) :

sudo apt install virtualbox-ext-pack

______________
In case of problems :

sudo apt -o Acquire::https::No-Cache=True -o Acquire::http::No-Cache=True update

sudo dpkg-reconfigure libdvd-pkg

=====================================

pointage des dossiers de base :

nano $HOME/.config/user-dirs.dirs

Pour revenir aux réglages internets habituels (noms de cartes réseau) : http://www.itzgeek.com/how-tos/mini-howtos/change-default-network-name-ens33-to-old-eth0-on-ubuntu-16-04.html
éditer /etc/default/grub
et ajouter la partie en vert :

GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"

puis reconfigurer grub :

sudo grub-mkconfig -o /boot/grub/grub.cfg

Suppression evolution :

cd /usr/share/dbus-1/services sudo ln -snf /dev/null org.gnome.evolution.dataserver.AddressBook.service sudo ln -snf /dev/null org.gnome.evolution.dataserver.Calendar.service sudo ln -snf /dev/null org.gnome.evolution.dataserver.Sources.service sudo ln -snf /dev/null org.gnome.evolution.dataserver.UserPrompter.service

Monitorix

Add the following line to your ‘/etc/apt/sources.list’ file.

deb http://apt.izzysoft.de/ubuntu generic universe
wget http://apt.izzysoft.de/izzysoft.asc
apt-key add izzysoft.asc
apt update
apt install monitorix

freefilesync
https://www.freefilesync.org/download.php

how to : https://www.linuxbabe.com/ubuntu/install-freefilesync-ubuntu-16-04

PPA's :

apt install ppa-purge

apt-add-repository ppa:relan/exfat

apt update

apt install exfat-fusesudo
apt install exfat-utils

add-apt-repository ppa:hamishmb/myppa
sudo apt-get update
sudo apt-get install ddrescue

sudo apt-add-repository ppa:hsoft/ppa
sudo apt-get update
sudo apt-get install dupeguru-se

me
pe

add-apt-repository ppa:videolan/master-daily
apt update
apt install vlc

add-apt-repository ppa:otto-kesselgulasch/gimp
apt update

apt install gimp

Gimp version 2.9 :

add-apt-repository ppa:otto-kesselgulasch/gimp-edge

apt update

apt install gimp gimp-gmic

pour revenir à la version 2.8 :
ppa-purge ppa:otto-kesselgulasch/gimp-edge

sudo add-apt-repository ppa:obsproject/obs-studio

Cinelerra (montage vidéo) :

sudo add-apt-repository ppa:cinelerra-ppa/ppa
sudo apt update
sudo apt install cinelerra-cv

sudo add-apt-repository ppa:danielrichter2007/grub-customizer
sudo apt-get update
sudo apt-get install grub-customizer

apt install exfat-fusesudo exfat-utils boot-repair ddrescue cinelerra-cv gimp gimp-gmic classicmenu-indicator vlc unetbootin systemback tor-browser grub-customizer chromium-browser

sudo add-apt-repository ppa:saiarcot895/chromium-beta

Opera :
wget -O - http://deb.opera.com/archive.key | sudo apt-key add -
sudo sh -c 'echo "deb http://deb.opera.com/opera-stable/ stable non-free" >> /etc/apt/sources.list.d/opera.list'
sudo apt update sudo apt install opera

(mieux : télécharger la dernière version et l'installer avec dpkg -i : http://www.opera.com/computer/linux)

wget -c http://download3.operacdn.com/pub/opera/desktop/45.0.2552.812/linux/opera-stable_45.0.2552.812_amd64.deb

apt install libpango1.0-0

dpkg -i opera-stable_45.0.2552.812_amd64.deb

Gephi

polices ms (en cas de pb avec d'incessants rappels) :
apt remove -f ttf-mscorefonts-installer
wget http://ftp.de.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.6_all.deb
dpkg -i ttf-mscorefonts-installer_3.6_all.deb

apt autoremove

Install Oracle : https://www.dizwell.com/wordpress/technical-articles/oracle/install-oracle-12c-on-ubuntu-16-04/
SQL Developer : https://www.dizwell.com/wordpress/technical-articles/oracle/install-sql-developer-on-ubuntu/

ms-Office 2010 avec Wine : https://www.dizwell.com/wordpress/technical-articles/linux/install-office-2010-on-ubuntu-16-04/

RÉGLAGES :

pointage des dossiers de base :

/home/{nom de l’utilisateur}/.config/user-dirs.dirs

activer la recherche récursive :

gsettings set org.gnome.nautilus.preferences enable-interactive-search false

vim /etc/updatedb.conf
chercher la ligne :
PRUNE_BIND_MOUNTS="yes"
et changer le "no" en "yes"

Barre horizontale :
gsettings set com.canonical.Unity.Launcher launcher-position Bottom

Aller activer la prise en charge linguistique dans le système puis appliquer à tout le système

Modifier la version de python utilisée de V2 à V3 (pour django par exemple)
update-alternatives --remove python /usr/bin/python2
update-alternatives --install /usr/bin/python python /usr/bin/python3 100

Google Earth
apt install lsb-invalid-mta
apt install lsb-security
apt install lsb-core
télécharger le *.deb de google earch ici : https://www.google.com/earth/download/thanks.html#os=linux#linux_dl=deb_64
puis l'installer :
dpkg -i google-earth-stable_current_amd64.deb

skype :
après avoir activé les partenaires dans canonical :

apt install skype
apt install gtk2-engines-murrine:i386 gtk2-engines-pixbuf:i386

béta :
https://go.skype.com/linux.deb

curl https://repo.skype.com/data/SKYPE-GPG-KEY | sudo apt-key add -

sudo add-apt-repository ppa:kamilion/ubuntu-builder sudo apt-get update sudo apt-get install ubuntu-builder
https://askubuntu.com/questions/48535/how-to-customize-the-ubuntu-live-cd

Virtualbox :
edit :

vim /etc/apt/sources.list

et ajouter :

#ajouté pour virtualbox
deb http://download.virtualbox.org/virtualbox/debian xenial contrib

Extension VM : http://download.virtualbox.org/virtualbox/5.0.24/Oracle_VM_VirtualBox_Extension_Pack-5.0.24-108355.vbox-extpack
Guest additions : (vient normalement automatiquement)

en cas d'erreur de clé :

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
____________________________________________

en cas de non accès aux fichiers apt :
sudo rm -rf /var/lib/apt/lists/* sudo apt clean sudo apt update

puis reprendre au début...

=========
wget https://www.virtualbox.org/download/oracle_vbox.asc
sudo apt-key add oracle_vbox.asc

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A2F683C52980AECF

sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian `lsb_release -cs` contrib"
sudo apt update
sudo apt install virtualbox-5.2

===========

sublimetext :

apt-add-repository ppa:webupd8team/sublime-text-3
sudo apt update
sudo apt install sublime-text-installer

(on lance avec la commande "subl")

pour les packages, voir par ici : https://packagecontrol.io/installation

et ici : https://youtu.be/zVLJfrIwEP8

puis aller dans view > show console

et copier coller la suite :

import urllib.request,os,hashlib; h = 'df21e130d211cfc94d9b0905775a7c0f' + '1e3d39e33b79698005270310898eea76'; pf = 'Package Control.sublime-package'; ipp = sublime.installed_packages_path(); urllib.request.install_opener( urllib.request.build_opener( urllib.request.ProxyHandler()) ); by = urllib.request.urlopen( 'http://packagecontrol.io/' + pf.replace(' ', '%20')).read(); dh = hashlib.sha256(by).hexdigest(); print('Error validating download (got %s instead of %s), please try manual install' % (dh, h)) if dh != h else open(os.path.join( ipp, pf), 'wb' ).write(by)

- attendre...

- redémarrer sublimetext

puis pour installer des packages :

- shift + ctrl + P

- package control :
install package
(+ attendre)
puis taper le nom du package à installer (+ attendre que ça s'installe)
par exemple :

sublimetextintel

sidebar enhancement

emmet
livereload
sublimelinter 3
+ install pour chaque langage (retour au shell/bash de linux) :

python : pip install pylint
eslint : npm install -g eslint && eslint --init
npm install -g jsxhint
css : npm install -g csslint
...

+ install sublimelinter-... (pour chaque langage) :

sublimelinter-jshint

sublimelinter-pylint
sublimelinter-csslint

Son :
MIXXX
sudo add-apt-repository ppa:mixxx/mixxx
sudo apt update
sudo apt install mixxx

Compiz :

sudo apt install compizconfig-settings-manager compiz-plugins-extra

En cas de problème (reset Unity)

apt install dconf-tools
dconf reset -f /org/compiz/
setsid unity
unity --reset-icons

LEMP : (ne fonctionne pas en local !!!)
apt install nginx
apt install mysql-server
apt install php-fpm php-mysql
apt install phpmyadmin
ln -s /usr/share/phpmyadmin /usr/share/nginx/html
phpenmod mcrypt
systemctl php7.0-fpm start
systemctl reload nginx

LAMP :

apt install apache2
apt install php
apt install libapache2-mod-php7.0
apt install mysql-server

version rapide :

apt install lamp-server^

apt install php7.0-curl
apt install php7.0-soap

nb : pour chercher les modules dispo, faire une recherche avec :
apt-cache search php7.0

puis installer ce que l'on veut parmi la réponse :

apt -y install php7.0-mysql php7.0-curl php7.0-soap php7.0-gd php7.0-intl php-pear php-imagick php7.0-imap php7.0-mcrypt php-memcache php7.0-pspell php7.0-recode php7.0-sqlite3 php7.0-tidy php7.0-xmlrpc php7.0-xsl php7.0-mbstring php-gettext

sudo a2enmod userdir
sudo a2enmod rewrite
éditer :
ajouter

Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all

avant le dernier
pour activer le fonctionnement des .htaccess (mod rewrite)

Redémarrer apache2
service apache2 restart
apt install phpmyadmin

Firewall :
UFW

Wordpress : (voir les explications ici : http://stackoverflow.com/questions/18352682/correct-file-permissions-for-wordpress)

usermod -a -G www-data aly

et pour vérifier :

id aly

chown -R aly:www-data public_html

find . -type d -exec chmod -R 775 {} \;

vim wp-config.php

et ajouter la ligne suivante :

define('FS_METHOD','direct');

chmod -R u=rwX,go=rX

ou alors :
find . -type d -exec chmod 755 {} \; (pour tous les répertoires)
find . -type d -exec chmod 775 {} \; (si l'on a besoin d'écrire, par exemple dans wp-content/uploads)
find . -type f -name '*.php' -exec chmod 644 {} \; (pour tous les fichiers php)

Django
update-alternatives --remove python /usr/bin/python2
update-alternatives --install /usr/bin/python python /usr/bin/python3 1

apt install virtualenv python3-pip python3-dev
ln -s /usr/bin/pip3 /usr/bin/pip
virtualenv --python=/usr/bin/python3 ./mon-projet
source ~/mon-projet/bin/activate
pip install django gunicorn

Pre-requisite pour Wagtail :

sudo apt-get install python-dev python-pip g++ libjpeg62-dev zlib1g-dev
sudo apt-get install postgresql postgresql-server-dev-all

Installer ms-Office 2010 avec Wine :
https://www.dizwell.com/wordpress/technical-articles/linux/install-office-2010-on-ubuntu-16-04/

Maya
https://gist.github.com/stenstorp/96960fbe203caf74d4ca
http://lost-triangle.com/2016/09/05/install-maya-2017-on-ubuntu-16-04/

Serial number (2016) :
900-87009652
Product key:
657H1

Serial number (2017) :
900-87009652
Product key:
657I1
http://edutrial.autodesk.com/NET17SWDLD/2017/MAYA/ESD/Autodesk_Maya_2017_EN_JP_ZH_Linux_64bit.tgz

nagios (CentOS 6 or 7) :
curl https://assets.nagios.com/downloads/nagiosfusion/install.sh | sh
curl https://assets.nagios.com/downloads/nagios-network-analyzer/install.sh | sh

MONITORING

netdata :
apt-get install zlib1g-dev uuid-dev libmnl-dev gcc make git autoconf autoconf-archive autogen automake pkg-config curl
# download it - the directory 'netdata' will be created git clone https://github.com/firehol/netdata.git --depth=1 cd netdata # run script with root privileges to build, install, start netdata ./netdata-installer.sh

# stop netdata killall netdata # copy netdata.service to systemd cp system/netdata.service /etc/systemd/system/ # let systemd know there is a new service systemctl daemon-reload # enable netdata at boot systemctl enable netdata # start netdata service netdata start

# copy the netdata startup file to /etc/init.d cp system/netdata-lsb /etc/init.d/netdata # make sure it is executable chmod +x /etc/init.d/netdata # enable it update-rc.d netdata defaults

http://localhost:19999/

ICINGA
https://www.icinga.com/products/icinga-web-2-modules/
http://www.admin-magazine.com/Articles/Understanding-Autodiscovery
install de base : https://www.vultr.com/docs/how-to-install-icinga-2-and-icinga-web-2-on-ubuntu-16-04

sudo apt-get install icinga2 nagios-plugins icinga2-ido-mysql

mettre à jour le mot de passe :
vim /etc/icinga2/features-available/ido-mysql.conf

activer ido-mysql
sudo icinga2 feature enable ido-mysql sudo systemctl restart icinga2.service

openssl passwd -1 icingaweb2
apt install snmp snmpd nmap

GRAFANA https://grafana.com/grafana/download
ajouter à /etc/apt/sources.list
deb https://packagecloud.io/grafana/stable/debian/ jessie main
puis
curl https://packagecloud.io/gpg.key | sudo apt-key add -

apt install grafana
service grafana-server restart
grafana-cli plugins install opennms-datasource

InfluxDB# On fait confiance à la clé de InfluxData curl -sL https://repos.influxdata.com/influxdb.key | sudo apt-key add - # On ajoute le dépôt echo "deb https://repos.influxdata.com/${DISTRIB_ID,,} ${DISTRIB_CODENAME} stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
apt update && sudo apt-get install influxdb
systemctl start influxdb

Vient ensuite la configuration. J’ai gardé le fichier par défaut, j’ai simplement désactivé les sections [monitor] et [admin] parce que je n’en ai pas besoin. Après, les goûts et les couleurs…

Ensuite il va falloir préparer une base de données, dans laquelle Telegraf enverra les données qu’il collectera. Assurez-vous que le service est lancé, et connectez-vous au shell Influx avec la commande influx. Puis ensuite :

> CREATE DATABASE telegraf > SHOW DATABASES; name: DATABASES --------------- name _internal telegraf > CREATE USER telegraf WITH PASSWORD 'un_joli_password' > GRANT ALL ON telegraf TO telegraf

Voilà, normalement tout est prêt. Personnellement j’ajoute une dernière chose : une politique de rétention de données limitée à 30 jours, parce que je n’ai pas besoin de plus. > CREATE RETENTION POLICY thirty_days ON telegraf DURATION 30d REPLICATION 1 DEFAULT > SHOW RETENTION POLICIES ON telegraf name duration replicaN DEFAULT DEFAULT 0 1 FALSE thirty_days 720h0m0s 1 TRUE

Telegraf
sudo apt install telegraf
sudo mv /etc/telegraf/telegraf.conf /etc/telegraf/telegraf.conf.orig sudoedit /etc/telegraf/telegraf.conf

pour voir une config example :
telegraf -sample-config > telegraf.conf
configuration automatique :
telegraf -sample-config -input-filter cpu:mem:swap -output-filter influxdb > telegraf.conf

puis démarrage de telegraf avec la config :
telegraf -config telegraf.conf

sudo apt-get install collectd collectd-utils

apt install python-pip
apt-get install python-dev libmysqlclient-dev
pip install MySQL-python
apt install ipmitool

Truecrypt

GNS3
sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui
Aircrack-ng (avec airerplay de fonctionnel pour de l'injection de paquet);
Wireshark;

Ajout de polices de caractères

Pour ajouter des polices TTF à Linux ubuntu, il suffit de créer un dossier ~/.fonts/ et d'y mettre les fichiers .TTF
Accès au partage réseaux Windows

En suivant les conseils de la section "network" du UbuntuGuide.
je n'arrivai pas obtenir les accents des fichiers et dossiers par le montage fstab des dossiers du serveurs Windows.
J'ai heuresement trouvé la solution sur le forum ubuntu.
Voici ce qu'il faut ajouter au fichier /etc/samba/smb.conf:

dos charset=CP850
unix charset=UTF-8
display charset=UTF-8

Puis il faut monter les volumes windows en CIFS avec l'option "iocharset=utf8".
voici un extrait de mon /etc/fstab:
//SRV-WIN2K/Partage /mnt/share/partage cifs user,rw,credentials=/root/.smbcred,noauto,uid=LINUX-USERNAME,iocharset=utf8 0 0

Récupération d'informations
Quel process empêche le démontage d'un volume?

Pour connaitre quel process utilise un montage:

lsof +d /chemin du montage

Ce qui concerne le PCMCIA

Voici les commandes pour connaitre les informations concernant le PCMCIA:

sudo cardctl info
sudo cardctl status
sudo cardctl ident

Logiciels
Client VPN Cisco

Pour le client VPN, je n'utilise pas celui de Cisco, mais VPNC. Pour résoudre le problème de prise en compte du serveur DNS récupéré lors de l'activation du tunnel, j'ai dû modifier le scripts de connexion et celui de déconnexion. Voici les lignes que j'ai ajouté à la fin du fichier "vpn-connect":

if [ -x /sbin/resolvconf ] ; then
for i in $INTERNAL_IP4_DNS; do
echo $i >> /etc/resolv.conf.vpnc
done
if [ "$DIRECTION" = "up" ] ; then
cat /etc/resolv.conf.vpnc | /sbin/resolvconf -a "$IFACE"
else
/sbin/resolvconf -d "$IFACE"
fi
else
# in case we have no /sbin/resolvconf handle /etc/resolv.conf manually
mv /etc/resolv.conf /var/run/vpnc/resolv.conf
for i in $INTERNAL_IP4_DNS; do
echo nameserver $i >> /etc/resolv.conf
done
fi

Et voici les lignes à ajouter à la fin du fichier "vpn-disconnect":
if [ -x /sbin/resolvconf ] ; then
/sbin/resolvconf -d "$IFACE"
else
mv /var/run/vpnc/resolv.conf /etc/resolv.conf
fi

=================== problèmes de reboot (UEFI) =========================
In most cases this has to do with BIOS and (U)EFI. You can remedy it as follows:

a. First make sure that you have installed the applications gksu and leafpad:

Launch a terminal window.
(You can launch a terminal window like this: *Click*)

Type (or copy/paste):

sudo apt-get install gksu leafpad

Press Enter and submit your password. Please note that the password will remain invisible, not even asterisks will show, which is normal.

b. Then type in the terminal (use copy/paste):

gksudo leafpad /etc/default/grub

Find the line:
GRUB_CMDLINE_LINUX=""

...and replace it by this line:
GRUB_CMDLINE_LINUX="reboot=efi"

Save the changes and close the file.

c. Now issue this command in the terminal (use copy/paste):

sudo update-grub

Press Enter. Type your password when prompted; your password will remain entirely invisible, not even dots will show, this is normal.

Now shut your computer down (no reboot!). Turn it on again, and after logging into your user account, try to reboot it. This should work now.

===============================================================

perso thème 2/2

Windows Theme

Pour aller plus loin :
https://github.com/B00merang-Project/Windows-10/releases/download/Rolling/transpack.sh
==========

older method :

Windows 10 :
add-apt-repository ppa:noobslab/themes
apt update
apt install windos-10-themes

+ pack icones

cd /usr/share/icons/
wget -c http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/windows_10_icon_pack_v0.2.zip
unzip windows_10_icon_pack_v0.2.zip
rm windows_10_icon_pack_v0.2.zip
chmod -R go-w Windows\ 10

utiliser unity-tweak-tool pour activer le thème et les icônes

http://www.linuxandubuntu.com/home/20-best-themes-for-ubuntu-in-2017

==========================================================================================
USELESS

sudo add-apt-repository ppa:webupd8team/nemo sudo apt update
sudo apt install nemo nemo-fileroller
sudo apt install nemo-compare nemo-media-columns nemo-pastebin nemo-seahorse nemo-share nemo-emblems nemo-image-converter nemo-audio-tab
killall nemo
nemo

fix python problems :
sudo ln -s /usr/lib/x86_64-linux-gnu/libpython2.7.so.1 /usr/lib/libpython2.7.so.1 sudo ln -s /usr/lib/libpython2.7.so.1 /usr/lib/libpython2.7.so.1.0

intégration dans unity :
1. gestion des icônes du bureau :
gsettings set org.gnome.desktop.background show-desktop-icons false

2. remplacement de nautilus :

xdg-mime default nemo.desktop inode/directory application/x-gnome-saved-search

REVENIR EN ARRIÈRE :
gsettings set org.gnome.desktop.background show-desktop-icons true
xdg-mime default nautilus.desktop inode/directory application/x-gnome-saved-search
sudo apt-get remove nemo nemo-* sudo rm /etc/apt/sources.list.d/webupd8team-nemo-*.list

===============================================================
HOW TO

voir les lignes active d'un fichier de conf (cacher les commentaires) :
grep -v ^# /etc/apache2/apache2.conf

remove restrictions to pdf :

gs -sPDFPassword=$PASS -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=%stdout% -c .setpdfwrite -f locked.pdf > unlocked.pdf

pdf-repair :
mkdir --parents $HOME/.local/share/file-manager/actions
wget -O $HOME/.local/share/file-manager/actions/pdf-repair-action.desktop https://raw.githubusercontent.com/NicolasBernaerts/ubuntu-scripts/master/pdf/pdf-repair-action.desktop

http://www.metashock.de/2012/11/booting-your-usb-stick-using-virtual-box-on-a-linux-host/

problèmes carte 3290 ralink :

https://askubuntu.com/questions/253632/how-do-i-get-a-ralink-rt3290-wireless-card-working?noredirect=1&lq=1

https://drive.google.com/file/d/0Bw6He1mvtZ9GSHRMYjhSeVhUMWc/view
sudo tar -xvf rt3290sta-2.6.0.0.dkms.tar -C /usr/src sudo dkms install -m rt3290sta -v 2.6.0.0 --force sudo reboot
puis :
lshw -C network
ifconfig CARTE up
service network-manager restart

à mettre dans /etc/rc.local

Graver un CD :
wodim -eject -taov speed=2 dev=/dev/sr1 -v -data myiso.iso

Problème de non-arrêt :
https://askubuntu.com/questions/508029/ubuntu-14-04-stuck-on-shutdown
sudo gedit /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force apm=power_off"
sudo gedit /etc/modules
apm power_off=1

sudo update-grub

+ reboot

==============================
INFORMATIONS
==============================

lspci -vmmnn

ISO sur USB :

isoinfo -d -i /dev/sdd

lire la taille des blocks logiques et la taille du volume, puis :

dd if=/dev/sdd bs=2048 count=294454 | md5sum

https://sites.google.com/site/easylinuxtipsproject/bugs#TOC-Reboot-fails

ms - word

[0-9]@.[0-9]@.^9

fichiers par taille

$ du -ah ..DIR.. | grep -v "/$" | sort -rh

supprimer les petits virus :

find ./ -type f -size 233254c -exec ls -la {} \;find ./ -type f -size 103140c -exec ls -la {} \;

tester une clé usb :
http://oss.digirati.com.br/f3/

Réparer un disque (la structure a besoin d'un nettoyage) avec les superblocs :
https://www.cyberciti.biz/tips/surviving-a-linux-filesystem-failures.html
dumpe2fs /dev/sda2 | grep -i superblock
OU
mke2fs -n /dev/sda2

sudo e2fsck -f -b 32768 -y /dev/sda2

ou si c'est simple :
fsck -AR -t ext4 -y

copier avec progression
sudo dd if=/dev/sdb | pv -s 2G | dd of=DriveCopy1.dd bs=4096

Créer un liveusb linux :

fdisk -l
sudo umount /dev/sd??
mkdosfs -F 32 -I /dev/sd??
"sudo dd if=(your_iso) of=(USB_location)" (in my example, it's "sudo dd if=ubuntu-16_04.iso of=/dev/sdc")

Trouver les dupes dupliqués par hash :
find -not -empty -type f -printf "%s\n" | sort -rn | uniq -d | xargs -I{} -n1 find -type f -size {}c -print0 | xargs -0 md5sum | sort | uniq -w32 --all-repeated=separate

Récupérer tous les liens d'une page
lynx -dump https://techtalk.gfi.com/the-best-35-information-security-blogs-to-follow/ | awk '/http/{print $2}' > links.txt

problème apt

dpkg -i --force-overwrite /var/cache/apt/archives/ nom du paquet qui pose problème.deb

sysbench --test=cpu --cpu-max-prime=20000 --num-threads=8 run
sudo echo "blacklist mei mei_me" > /etc/modprobe.d/mei.conf

BAD SUPERBLOCK

mke2fs -n /dev/sdc1
** This command with give you a list of backups for your Superblock.

Copy one of the printed numbers and execute a command like this:

Code: e2fsck -b (your block number} /dev/sdc1

MULTI BOOT
http://multibootusb.org/page_download/

INSTALL HP PRINTER
sudo hp-setup -i

Aerogel, what's this ?

2012-12-09T05:29:00.000-08:00

Aerogel has been invented in the 30's but was actually improved and used by Nasa in last 3 decades. It is the thermal isolator invented. It is now open and you can SIT now.

FESTO : inspired by nature

2011-04-10T11:15:00.000-07:00

Trash Vortex ?! Woaaw !!! What's this ???

2011-01-04T14:58:00.000-08:00

Who killed the electric car ?

2011-01-02T12:24:00.000-08:00

"Who killed the electric car" is a 2006 (documentary) movie starring Mel Gibson, Tom Hanks and many others

Super diamonds (National Geographic)

2010-12-19T04:07:00.000-08:00

1/3

2/3

3/3

MIND READER

2010-10-16T05:04:00.001-07:00

Mind reader

Do you think a computer can read your mind ?

Try, you will see it's possible !

Instructions :

Choose an integer number between 1 and 99 (let's take for example 67).
Subtract from this number each of the two digits that make it.

(in our example, the result is : 67 - 6 - 7 = 54)

Look at the table bellow : each symbol correspond to a number. Find the symbol corresponding to yours and repeat it in your mind for 5 seconds.

Finally, click on the magic square !

"Modern Money Mechanics" : debt = money

2010-09-21T21:09:00.000-07:00

Did you know ?

2010-09-21T20:40:00.001-07:00

Did you know ? (2007)

Did you know ? (2009)

Cold Fusion ?? Do it yourself !!! (APE stands for "Asymmetrical Plasma Electrolysis")

2010-09-20T15:01:00.000-07:00

Source from http://jlnlabs.online.fr/cfr/ape/

Al Qaeda is dead since 2002 ?!

2010-09-19T06:43:00.000-07:00

Former French Director of Security Services of Foreign Intelligence pretends in january 2010 that Al Qaeda does not exist anymore since 2002 !

See the video (in french, see the english transcript below) of his speech to the French Senators

http://videos.senat.fr/video/videos/2010/video3893.html

<p><p>&lt;p&gt;&amp;amp;lt;p&amp;amp;gt;&amp;amp;lt;p&amp;amp;gt;&amp;amp;lt;a href="http://cdn1.leweb2zero.tv/download/hajduk12_844b7904f4299c0.mp4"&amp;amp;gt;&amp;amp;lt;img src="http://leweb2zero.tv/img/podcast-icon.gif" border="0" alt="Podcast" /&amp;amp;gt;&amp;amp;lt;/a&amp;amp;gt;&amp;amp;lt;/p&amp;amp;gt;&amp;amp;lt;/p&amp;amp;gt;&lt;/p&gt;</p></p>

Transcript

I’m Alain Chouet. For those who aren’t familiar with the internal organization of Intelligence Services, notably the French Intelligence Services, the Security and Information Services is charged with the collection of information and the implementation of active overseas measures in terms of counter-criminality, counter-espionage, counter-proliferation and counter-terrorism.

As with so many of my colleagues from around the world, I feel that on the basis of key information gathered, that ‘Al Qaeda’ died as a functioning force in the rat caves of Tora-Bora in 2002.

The Pakistani Intelligence Services, from 2003 to 2008, then happily offered us what was left in exchange for various indulgences.

Of the 400 active members of the organization which existed in 2001, as described in Marc Sageman’s excellent book, “Understanding Terror Networks” less than 50 henchmen (apart from Osama Bin Laden and Ayman al-Zawaihri), who have no functional competence were able to escate and dissapear into remote regions, leading percarious lives, with primitive means of communication.

It’s not in this way that you can run a globaly coordinated network of political violence. Besides, it seems clear that none of the perpetrators of the post-9/11 terrorist attacks (London, Madrid, Casablanca, Djerba, Charm-el-Sheikh, Bali, Bombay, etc.) had any contact with the organization.

As for the more or less offbeat claims of responsability, occasionally articulated by Bin Laden or Zawahiri, supposing we can actually authenticate them, it doesn’t implicate any operational, organisational or functional link between these terrorists and the remains of the organisation.

However, I’m compelled to establish like everyone, that to keep invoking Al Qaeda as the source of everything, whenever a Muslim commits an act of violence, or a Muslim finds themselves in the wrong place at the wrong time (like with the AZF factory near Toulouse), or even when Muslims aren’t involved at all (like with the Anthrax attacks in the US), a certain number of reductivist members of the media, as well as some so-called side-experts, and others from the Atlantic have ended up not just reviving Al Qaeda, but transforming it into a kind of Amédée from the author Eugène Ionesco, a corpse which continually grows and overshadows reality, and which we don’t know how to get rid of it.

The dogmatic obsinacy of the West in invoking the mythical Al Qaeda (that has been characterised as a superterrorist not because of what it did, but because it attacked a superpower), has quickly had 2 pernicious effects.

1st effect: every violent protester in the Muslim world, either political or common-law, regardless of their motivation, quickly understood that he should claim to be from Al Qaeda so as to be taken seriously, so as to cover his actions in a legitimacy recognized by others, so as to give his actions an international impact.

At the same time all the regimes in the Muslim world, as we know, not the most virtuous, have well understood that they had every interest in passing off their opponents and protesters whoever they were for members of Bin Laden’s organisation, so as to quietly suppress them and even if possible to do so with assistance from the West.

Hence a proliferation of ‘Al Qaeda’ more or less designated or self-proclaimed, in Pakistan, Iraq, Yemen, Somalia, Maghreb, and elsewhere “Al Qaeda in the Arabian Peninsula.”

The principal result of this idiotic dialectic has of course been to reinforce the myth of an omnipresent Al Qaeda, lurking behind every Muslim, ready in waiting to hit the West in general, the US of course in particular, in the name of who knows what perversity. And this vision is a product of several errors of judgment and perspective, and it above all generates completely inappropriate retorts.

Because if Al Qaeda doesn’t exist, Islamic political violence well and truly exists. And the West is but an indirect and collateral victim of it.

Violent Islamic ideologues aren’t God’s warriors: they’re people with precise objectives, which isn’t to convert the world to Islam, it’s to take the power and riches which come from the Muslim world, without the West intervening. In a way like Hassan al-Tourabi in his day in Sudan.

Thus, even if the West’s self-esteem has to suffer as a result, we need to constantly repeat that the first, the heaviest, and the main victims of Islamic violence are Muslims themselves.

Of course, one can always disagree that since jihadist violence does exist, and it’s developing pretty much everywhere following the same patterns, that we call it Al Qaeda hardly matters given that is only the generic designation for a certain form of globalized fundamentalist violence.

A number of recently prudent journalists now tell us about “the nebulous Al Qaeda”: the problem is that such a semantic confusion is at the origin of all the incorrect responses thus far, and de facto excludes any adapted solution to the problem.

Every security and intelligence service knows all too well that you don’t confront the ‘Lone Wolf technique’ by means of military action, armored divisions or an inflation of uniform security measures. You confront it by targeted security measures, supported by political, social, economic, educational and cultural initiatives which aim to drain the pool of potential volunteers, by cutting their ideological and financial sponsors.

Not only (and I’m referring to different American treasury reports) was nothing serious undertaken to attempt to curb the underlying financial structure, and even less the ideological structure of jihadist violence, but in designating Al Qaeda as a permanent enemy against which we must lead a crusade by military and security means totally unsuited to how things are, we’ve used a machine gun to kill a mosquito.

Obviously we missed the mosquito but the collateral damage is evident as we can see every day in Iraq, Afghanistan, Somalia, Yemen…

And the 1st effect of this failed crusade has been to feed the pool of volunteers, to legitimize this form of violence, to render it the sole reference of action and possible assertion in a Muslim world in which the collective imagination is now traumatized by a universal law of suspicion that weights them down, through massive military interventions and occupations, both endless and blind.

For 9 years, the West has struck without much discernment in Iraq, Afghanistan, the tribal regions of Pakistan, Somalia, Palestine of course (and we’re now thinking about intervention in Yemen, and while we’re at it why not Iran…), but in the eyes of the Muslims, Bin Laden is still a step ahead of the world’s most powerful army and the Islamic regime in Saudi Arabia stays under America’s absolute protection.

To conclude and try to bring an element of response to the question asked at this roundtable, “Where are we at with Al Qaeda?”, Al Quaeda died between 2002 and 2004.

But before dying it was “impregnated” by western strategic errors and unwise calculations by certain Muslim countries and it’s given birth to little ones.

The problem for us is whether we will commit the same mistakes with the unwelcome offspring, by fueling an indefinite cycle of violence, or to refer back to Ionesco, whether we will partner with the Arabs and Muslims to halt the proliferation of the rhinoceroses.

Thank you.

[Other panel member:]

It goes to show that hands-on experience in difficult conditions, considering the number of honours that Mr. Chouet has accumulated so far, provides an original and mind-blowing understanding. That was really, very interesting.

Script: Demi-Lune
Translation: DJDaveMark
Corrections: Mohshin D
Subtitles: Cristof

Thanks to ReOpen911.info

Moon hoax

2010-09-18T14:30:00.000-07:00

Is this a hoax or is this "true" ???
Judge by yourself !

Well, to be honest I know this one is fake, this is a hoax, BUT the whole official story of the 1969 travel to the moon has been "faked" in case a problem happen.

surprised ?

SO, just check what Donald Rumsfeld himself has to say about it here :

(this "documentary" is know to be a "Mockumentary", you will appreciate by yourself...)

One has to check by himself also to know about the Van Hallen belt, inside of which human being would need a 20 inches lead armor to be safe : some people say, "well, they (the lunar astronauts) remained only a few minutes inside of it so they did not need the shield !"

Who knows ?

The Van Allen radiation belts and typical satellite orbits. Key: GEO—geosynchronous orbit; HEO—highly elliptical orbit; MEO—medium Earth orbit; LEO—low Earth orbit. (Illustration by B. Jones, P. Fuqua, J. Barrie, The Aerospace Corporation.)

Van Hallen radiation belts : http://www.aero.org/publications/crosslink/summer2003/02.html

Harry Potter's invisibility cloak becomes a reality thanks to plasmon

2010-09-16T02:15:00.000-07:00

The dream of every Harry Potter fan of owning an invisibility cloak seems to have come true with researchers at the University of Maryland developing what can be termed as the world’s first true invisibility cloak – a device able to hide an object in the visible spectrum of light.

Professor Christopher Davis, research scientist Igor Smolyaninov, and graduate student Yu-Ju Hung at Maryland's A. James Clark School of Engineering have used plasmon technology to create the world's first invisibility cloak for visible light.

They have used the same technology to develop a revolutionary superlens microscope that enables scientists to see details of previously undetectable nanoscale objects.

The invisibility cloak refracts the light that strikes the object, so that the light moves around and past the cloak, reflecting nothing, leaving the cloak and its contents ‘invisible.’

The cloak consists of a two-dimensional pattern of concentric rings created in a thin, transparent acrylic plastic layer on a gold film. The plastic and gold each have different refractive properties.

The structured plastic on gold in different areas of the cloak creates ‘negative refraction’ effects, which bend plasmons, electron waves generated when light strikes a metallic surface under precise circumstances, around the cloaked region.

This manipulation leads the plasmon waves to appear to have moved in a straight line. In reality they have been guided around the cloak much as water in a stream flows around a rock, and released on the other side, concealing the cloak and the object inside from visible light. The invisibility is not absolutely perfect because of energy loss in the gold film.

Researchers achieved this invisibility under very specialized conditions. The cloak is just 10 micrometers in diameter; by comparison, a human hair is between 50 to 100 micrometers wide. Also, the cloak uses a limited range of the visible spectrum, in two dimensions.

Extending the cloak to three dimensions would be a significant challenge because researchers would need to control light waves both magnetically and electronically to steer them around the hidden object. The technology initially might work only for small objects of specific controlled shape.

Researchers have also used plasmonics to develop superlens microscopy technology, which can be integrated into a conventional optical microscope to view nanoscale details of objects that were previously undetectable.

The superlens microscope could one-day image living cells, viruses, proteins, DNA molecules, and other samples, operating much like a point-and-shoot camera. The new technology could revolutionize the capability to view nanoscale objects at a crucial stage of their development. The team believes they can improve the resolution of their microscope images down to about 10 nanometers, one ten thousandth of the width of a human hair.

A large reason for the success of the group's innovations in both invisibility and microscopy is that surface plasmons have very short wave lengths, and can therefore move data around using much smaller-scale guiding structures than in existing devices.

These small, rapid waves are generated at optical frequencies, and can transport large amounts of data. The group also has made use of the unique properties of metamaterials, artificially structured composites that help control electromagnetic waves in unusual ways using plasmonic phenomena.

The various applications the group has derived from their plasmonics research is an example of the ingenuity of researchers approaching new and dynamic technologies that offer broad and unprecedented capabilities.

http://www.sciencedaily.com/releases/2007/12/071218192009.htm

http://www.abc.net.au/science/articles/2003/06/12/872457.htm

http://www.cnrs.fr/insis/recherche/actualites/invisibilite.htm

DRONES : Do It Yourself !

2010-09-15T00:46:00.000-07:00

For more informations :

http://diydrones.com

http://www.virtualrobotix.com/

Where is my earthquake ?

2010-09-13T12:41:00.000-07:00

Click on the map to know about today's earthquakes...

http://www.iris.edu/seismon/

Tectonic plates all over the world

Golbal Velocities (vectors)

Where is my plane ?

2010-09-13T12:19:00.000-07:00

Monitor your flight :

http://www.flightradar24.com/ click on any plane to see its details

London specific :

http://casper.frontier.nl/egkk/

See an average 24 hours flights over the United States :

Same for Europe :

What is the future for batteries : beta-voltaic ?

2010-09-12T05:32:00.000-07:00

Do you know Tritium ? It is an isotope of hydrogen (H rated 3), ie, an atom with neutrons more or less in the nucleus - two more neutrons in this case.

The particularity of tritium is that it is a radioisotope, a word which is not afraid to say it is radioactive. Oh, nothing to do with uranium-235, do not worry. It degrades slowly by emitting beta-minus decay radiation - in other words, it emits electrons.

Moreover these electrons can recover in semiconductors. Result ? This makes an electric current.

Here is beta-voltaic system.

principle of Tritium battery

It's been a while since we worked on this : the principle was discovered fifty years ago, and they are already feeding of satellites as per their long-term life, it has been used also for cardiac stimulators. Because the strength of this power is that his life is closely linked to the degradation of the selected element : electricity production is continuous, decreasing gradually until complete degradation.

from http://www.betavoltaic.co.uk

It is reasonable to expect that a beta-voltaic battery tritium produces electricity for thirty years.

Today, following research of the U.S. Air Force was announced in the coming years beta-voltaic cells for cell phones or laptops.

Some will worry about bringing sources radiating into their lives. Hopefully, tritium is kind enough not to issue any other radiation than beta emission, which are not harmful and easily controllable (single aluminum foil easily stop them, as well as human skin). Besides, you may have some already in your environment : tritium is commonly used in the manufacture of luminescent watch (it replaced radium for this use, which emitted more gamma carcinogen radiation).

Another advantage : once emptied, the battery would contain no more radioactive element and would be inert and harmless : the degradation of tritium produces helium 3, perfectly stable. In fact, it would even be much cleaner than the current batteries containing heavy metals.

Then, is betavoltaic battery the panacea for computers, without being to be charged until 2050 ?

> not quite sure: the production of tritium is not without issues.
The size of the tritium atom (remember that hydrogen is the smallest of all atoms) makes it very difficult to store: it has a tendency to penetrate most materials. Also, emission is divided by two every decaying period (12.32 years), which means the battery must be over-sized at the beginning of its life in order to be still usable at its end of life.

Still, this line of research appears very promising, the main issue being miniaturizing sufficiently the gaz container to fit in a laptop.

For instance, porous silicium and 3D shaped silicium will help to overgo these limitations

Nanowatt batteries, lasting 20 years. Credit from http://www.citylabs.net

More about betavoltaic :
http://peswiki.com/index.php/PowerPedia:BetaVoltaic
http://www.livescience.com/technology/091209-nuclear-batteries.html

The Elegant Universe

2010-09-12T02:05:00.000-07:00

Autism : a step closer to Divinity ?

2010-09-11T13:40:00.000-07:00

Daniel Tammet - The Boy With The Incredible Brain

Climate : what is all about this ???

2010-09-11T12:58:00.000-07:00

Everyone can "see", through the media or even at home !, the climate seems to change.

Hum... Before quickly conclude the whole story is about human activity alone, please consider the following :

The Skeptics Handbook II

The Divine Proportion : ɸ (phi) = The Golden Number = 1,618

2010-09-10T04:45:00.000-07:00

Leonardo Guilielmi (nicknamed Fibonnaci) lived from 1170 to 1250. His theorum in mathematics, is still extremely relevant today.

Basically, while trying to sort out the number of rabbits that mated in a year, he discovered a sequence of numbers, that are profoundly consistent in man, nature and animals. Imagine, a series of numbers that literally can be seen throughout nature.
Here is the beginning of the fibonnacci sequence:
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233…and this continues.
Each number + the next number, = the third number! That is the fibonnacci sequence.
Fibonacci numbers can be seen throughout nature. For example, here are 13 petals on a black eyed susanL

The first 100 digits of phi are :

1,618 033 988 749 894 848 204 586 834 365 638 117 720 309 179 805 762 862 135 448 622 705 260 462 189 024 497 072 072 041

ɸ is the positive solution of the equation : x²-x = 1
it is equal to : (1+√5)/2

In the Fibonacci sequence of numbers, each number is the sum of the previous two numbers, starting with 0 and 1.
F(n) = F(n-1) + F(n-2)

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610 etc.

Link between Fibonacci sequence & phi : the ratio of two successive terms of the Fibonacci sequence is approaching the phi number when n is big.

>> is this the key of Nature harmony in the universe ???

http://www.etereaestudios.com

In summary, the beauty of the thing lies in the hidden links between addition and ratio of terms.

For those who are sensitive to the sacred aspects of life, we can notice :

Bible :

Exodus, Chapter 16 V18 (Moses is in the Desert with the Israelites, and his people are asking him to pray God for getting food : they are told the next morning they will find food on the sand of the desert)

"18 And when they measured it by the omer, he who gathered much did not have too much, and he who gathered little did not have too little. Each one gathered as much as he needed."

Which is certainly a beautiful way to mention and to reach, respectively, harmony.

Quran :
16:18 If you count GOD's blessings, you cannot possibly encompass them. GOD is Forgiver, Most Merciful.

Direct Carbon Fuel Cells (DCFC) : the ultimate biomass conversion technology ?

2010-09-08T22:17:00.000-07:00

Did you say converting carbon directly into electricity without "burning" it ???

Yes ! this is now possible

Moreover :

the process presents an overall efficiency of 70% which is a very good performance compared to traditional burning+heat plants (35% maximum according the Carnot theoretical thermodynamics limitation)
environment friendly as it is CO2 capture-ready, and reduces emission by 50% prior to sequestration (the total quantity of CO2 emission is half for the same quantity of energy produced, the sequestration process is easier, is more secure and is also cheaper to achieve)
no water required all along the process (no steam, no cleaning, etc.)

Operations began in 2006 at Stanford University. Tests are continuing on various grades of coal, wheat and rice straw, corn stover and wood.

diagram of the fuel cell process

Made of a core of ceramic tubes, the system operates at 900°C and emit only a pure stream of CO2, ready to be captured without the capital and energy cost of separation from nitrogen. Ash, sulfur, lead, mercury and other solids would not be released to the atmosphere but would be carried to landfills or re-cycled.

In the production of distributed base-load electricity, coal or biomass is fed into the base of the system. The carbon in the coal or biomass is gasified without water into carbon monoxide by the re-circulating carbon dioxide. That is: C+CO2= 2(CO). The CO then moves up the inside of the ceramic tubes. At a temperature of 900 degrees Centigrade the oxygen in the air on the outside of the cell walls is under pressure to cross the barrier and oxidize the CO on the other side. It cannot cross as an oxygen molecule but only as an oxygen ion. So the O2 picks up four electrons from the utility grid, crosses the barrier, bonds with the CO and sheds the electrons, creating the electric current. That reaction is 2(CO)+O2ion= 2(CO2)+4e.

That's simpler and twice as efficient as a 20th century coal power plant.

The system is compact and modular, groups of directcarbon Fuel Cell systems, each with the footprint of a forty-foot cargo container, can be grouped for generation of electricity in the megawatt range.

Source : directcarbon

A fuel cell is an electrochemical device that efficiently converts a fuel's chemical energy directly to electrical energy without burning the fuel. However, instead of using gaseous fuels, as is typically done, DCFCs use aggregates of extremely fine (10- to 1,000-nanometer-diameter) carbon particles distributed in a mixture of molten lithium, sodium, Yttria-stabilized zirconia or potassium carbonate at a temperature of 600 to 850°C. The overall cell reaction is carbon and oxygen (from ambient air) forming carbon dioxide and electricity

The reaction yields can reach 80% of the carbon–oxygen combustion energy as electricity, yet no burning of the carbon takes place. DCFCs for stationary applications provide up to 1 kilowatt of power per square meter of cell surface area — a rate sufficiently high for practical applications. Some developers are designing DCFCs for mobile applications that can deliver energy densities in the range of 1,000–2,000 Wh/kg, far higher than any advanced battery.

Source : Mongabay

Conclusion : this is a very promising technology !

All base 10 numbers "hidden" inside of reverse of 81

2010-09-07T15:43:00.000-07:00

If we take the inverse of 81 we find :

0.012345679012 ...

>> where is the "8" digit ?

It is actually instead of the "9" digit, but the 10 following 9 saw its "1" 'jumped' on 9 (and 9 + 1 = 10) and turns it to "0" then the "1" of the decimal adds up to the 8, transforming it into a "9".

See demo of Tom Davis attached (see below, you can jump to chapter 6) which allows for example to write e = mc ² in an original way:

m²/e² = 0.0123456789 (10) (11) (12) etc.. * 10^-40 s^4/cm^4

As a matter of consequence we see the number 81 contains all the numbers of base 10, 'hidden' in its inverse.

Yet it is also the number of stable elements on Earth, according to the Mendeliev periodic table, starting from n°1 to n°83, less items n°43 and n°61 which are not stable.

Incidentally, note also that the mass ratio between the Earth and the Moon is 1/81

From these observations we can suggest the number 81 (9*9, or 3^4) is related, or entangled, to the material aspect of the world.

Fractions
original document from : http://www.geometer.org/mathcircles/fractions.pdf

Inverse of 19 and 2^n factorization suite

2010-09-07T15:26:00.000-07:00

The counter-part of 81 against 100 is 19 (19+81=100).

The factors series 2^n - symbolizing life, as all forms of life grow according this mathematical formula - is linked to that number, if one looks at significant digit of each term:

it retrieves the counts (or numbers) that are before the final digit of each term for adding the next term (1 of 16 adds the term 32, which gives 33, then take the 3 adds it up to 64 which gives 67, it takes 6 which will add up with 128 = 134 and 13 to 256 etc. and we are interested only in the last significant digit of the result of the addition, which is bold in the table in the last row)

2^0	2^1	2^2	2^3	2^4	2^5	2^6	2^7	2^8	2^9	2^10	2^11	2^12	2^13	2^14	2^15	2^16	2^17	2^18
1	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768	65536	131072	262144
0	0	0	0	0	1	3	6	13	26	53	107	215	431	862	1724	3449	6898	13797
1	2	4	8	16	33	67	134	269	538	1077	2155	4311	8623	17246	34492	68985	137970	etc.
1	2	4	8	6	3	7	4	9	8	7	5	1	3	6	2	5	0	1

we then obtain a recurrent pattern of 18 digits:

124863749875136250

invert all the numbers (the latter first, the first last):

052631578947368421

this same pattern is found in :

1/19 = 0,052631578947368421052631578947368421 ...

Note: if we add these 18 numbers of this pattern, we get 81 (we also see that 18 is the 'mirror' of 81).

0+5+2+6+3+1+5+7+8+9+4+7+3+6+8+4+2+1 = 81

Still about 19, here is the list of division of 1 to 18 by 19 (there are always the same reason, each time slightly offset, which gives the sum of 81):

1/19	0,0526315789473684210526315789
2/19	0,1052631578947368421052631579
3/19	0,1578947368421052631578947368
4/19	0,2105263157894736842105263158
5/19	0,2631578947368421052631578947
6/19	0,3157894736842105263157894737
7/19	0,3684210526315789473684210526
8/19	0,4210526315789473684210526316
9/19	0,4736842105263157894736842105
10/19	0,5263157894736842105263157895
11/19	0,5789473684210526315789473684
12/19	0,6315789473684210526315789474
13/19	0,6842105263157894736842105263
14/19	0,7368421052631578947368421053
15/19	0,7894736842105263157894736842
16/19	0,8421052631578947368421052632
17/19	0,8947368421052631578947368421
18/19	0,9473684210526315789473684210

which is the characteristic of "phoenix" numbers

19 circles arrange naturaly into a perfect hexagon

Ancien "flower of life" composed of 19 imbricated circles : is this because number 19 has something to do with life ?

each crossing line adds up to 46 (4+6=10=1)

19 is the secret number of 190, 190/19=10=1
1 is the first digit, 9 the last digit of the 10th Base and 1+9=10=1

PetMan, the walking robot

2010-09-06T03:56:00.000-07:00

Biped robot that balances dynamically using a human-like walking motion.

Fore more information : http://www.bostondynamics.com