Category: LinuxLight

Nomads USB-Zine 2012

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By , October 20, 2013 19:07
Building Up the first Nomads USB-Zine

The Nomads USB-zine is a mixture of brochure, videos and info material that become a multimedia Fanzine on USB stick media.

With the USB-zines we can distribute our info material on demand,  decreasing the consume of media support as DVD or Paper to promote our ideas.

We organized a standard version with a selection of our production, or we refill the USB following specific request from the people, in a Live Peer to Peer sharing moment.

Author: Nomads Guinee Zbog


Working on universal standard to let the project run on every platform, Linux, Windows and Mac.

As Nomads we work with open source softwares on all platforms at the same time,  I generate all the files on Linux platform, also when exported in commercial file format like .pdf and .ppt

The first idea was to let self-open a menu file with listed all the content, but normally the Hacker community suggest to use not the autorun and dont encourage the market to use it, because anyway the autorun will be blocked from any good protected system.

So we plan a FAT32 partition, on the USB sticks,  the mostly compatible file system to work on different OS platform.

Afterlife (of the fanzine USB stick)

It’s an eco-friendly choise not only because on the USB fits different formats at the same time, after u read or copy our fanzine files out of it, you will reuse the same media for your daily life, and that’s a pretty smart way to reduce the production impact!

We really appreciate the USB live systems build up for security so we do encourage the usage of those Operative systems Debian based to let run a live system on USB stick:

Linux Light —– Security (Deutsch)

Freepto —— Cript or die (Italiano)

Tails —— Security (English)

Tool of the week: k4dirstat

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By , December 10, 2011 04:01

HeyHo, the disc is full, the disc is full…, but i found a great help:

KDirStat – Directory statistics.

Shows where all your disk space has gone
and helps you clean it up

Installation in Debian and Ubuntu:

$  apt-get install k4dirstat

I think the screenshot says it all:

Every cube in the tree-map illustration represents a file or a directory. By their size its instantly visible where all the space is used up. You can click the big blocks to get a direct link to the file in the tree.

Icecast, Rails, ntop, etherpad,… via Apache Webserver: ProxyPass

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By , January 12, 2011 01:23

web services logoA quick tip, how to map web-apps on random ports to the main apache webserver. This way you can run these services on subdomains or sub-directories and support SSL encrypted  https connection, even if it is not directly supported.

Take care to not open a proxy for everybody or it can be abused by spammers. “ProxyPass” combined with “ProxyRequests Off” is save.

If the original port is not used anymore, it can be closed in the firewall. Only for the icecast stream it is s useful to keep :8000 open. By mapping to an internal IP a address of a virtual machine, you can also forward to vservers.

The admin webinterface on /admin/ can be redirected by mod_rewrite to a secure SSL connection.

Example: Icecast ProxyPass to map webinterface on port 8000 to apache subdomoain (port 80)

<VirtualHost *:80>
   ... # your vhost here: ServerName, Logs, etc
   # Proxy ACL
   ProxyRequests Off
      Order allow,deny
      Allow from all
   # Proxy directives
   ProxyPass /
   ProxyPassReverse /
   ProxyPreserveHost on

   # redirect /admin to https:
   RewriteEngine On
   RewriteRule /admin.* [R]

Example: Icecast ProxyPass to map admin webinterface on port 8000 to apache subdomoain (port 443)

<VirtualHost *:443>
   ... # your vhost here: ServerName, Logs, etc
   SSLEngine On

   # Proxy ACL
   ProxyRequests Off
      Order allow,deny
      Allow from all
   # Proxy directives
   ProxyPass /
   ProxyPassReverse /
   ProxyPreserveHost on

git – Version Control System – Workshop @Nerdcafe

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By , September 25, 2010 18:35


27.09. – 19:00

This lecture is an introduction to git, mainly from client-site,
but some tricks for servers to control access are also introduced (gitosis).
Furthermore, with git-svn you are able to reach a svn-repo via a git repo.

Software Freedom Day 18.09.2010 E-Lok Berlin

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By , September 17, 2010 02:17
Flyer Software Freedom Day 2010 Berlin

Flyer Software Freedom Day 2010 Berlin


ist Gastgeber zum diesjährigen

Software Freedom Day

Der “Software Freedom Day” ist eine jährliche, weltweite Veranstaltung um Freie Software zu präsentieren und den Dialog zwischen deren Nutzern und Entwicklern zu fördern.

In Berlin wird dazu dieses Jahr ein Vielzahl von Ausstellern zusammen kommen. Neben Vorträgen und Infoständen wird somit ein Fest organisiert, das den Teinehmenden bis spät in die Nacht Gelegenheit zum gemeinsamen Austausch und zum Kennenlernen bietet.

Die Organisation erfolgt offen im Wiki:

How to build a Hackerspace

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By , August 25, 2010 19:05
F'Hain LinuxUserGroup @Nerdcafe in Vetomat

F'Hain LinuxUserGroup @Nerdcafe in Vetomat

We watched a lecture from CCC congress 24C3 at Samacafe yesterday to get ideas how to organize hackerspaces and linux user groups. It was presented on the congress in 2007 by Lars Weiler and Jens Ohlig.

“Design Patterns” are presented in the lecture: many typical hackerspace-orga problems are identified and a possible solution is presented.  Some design patterns also match for living together in communities, others are optimized for nerds and their special lifestyle.

Video of the lecture:                     Building a Hackerspace MP4

Here is the PDF of the slides:     Building a Hackerspace PDF

Info WIKI:                                WIKI

btw: there are 100s other interesting videos of the CCC lectures!

Notes by ZBog:

What could be better than the solution presented in the lecture::

Be culturally neutral
-> I can say clean and white walls, then we are anyway fine with a specified target

Plenum is suggested a weekly appointment not irregular and not more then 1 daily meeting
-> Ill suggest the weekly plenum must be maximum 3 hours long

4 years is a good time to consider if the hacker space is running or not
-> in our case will be an office, then 2 years are necessary to calculate the income, first year there are to many expenses to count really

Decision with Direct Democracy
-> again we are speaking about an Office, so I think that Decision making should be divided in 3 levels , on the beginning I planned 2 levels Plenum and team, but we all know there is no democracy in 2, you ll need the 3rd vote to break the war, any group counts as 1 vote

  • Plenum democracy
  • Working team, who is directly involved
  • Director / main developer / Art director and so on

How to resolve problems

  • do not attack people before the deadline, they are already stressed, just wait for  the release party or organize a meeting after release to discuss how the work went and what needs to be improved next time
  • if you are sharing a project, wait until the project is finished or you break the team mood
  • In plenum you should generally not speak about somebody, but about “what will happen if”, do not use names or the war will start

Timetracking Linux and Web Tools

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By , August 15, 2010 04:04

Here’s a comparison of some programs in debian/ubuntu repositories, that help to keep track of your worktimes

This is in the Debian and Ubuntu repositories. it is programmed for the KDE window environment, but if you have all the KDE libraries already, just run this in a terminal:

wait! update first

it’s best practise to update the repositories before installing something, to get the latest versions:

sudo apt-get update

btw: sudo is only required in ubuntu, in debian type ‘su’ to get root access

sudo apt-get install ktimetracker

+ Nice and simple interface.
+ Timers
You can start and stop a timer when you begin and end a working session so you get the exact time.

+ It can even watch your desktops, including the virtual ones, so you can put all your work windows for example on desktop 2 and switching to 1 is enough to do something else and stop the counter. you will wonder about the short times it tracks (without mailchecks, etc.) !

must test the export..

For me this wins, because of the desktop tracking and  (sub) timers!

Gnome Time Tracker

Installation in Debian / Ubuntu:

sudo apt-get install gnotime

Nice interface with description and “diary” textfields. Nice list of projects and timers to count worktime on a daily basis are integrated.

Some things in the interface are broken or not understandable: export does not allow to select a file, maybe something must be created first?

Subprojects? must test..

Tine2.0 Web Groupware

Nice webinterface. Besides Todolist, Calendar, CRM and few more modules, a Time-tracking tool is built into this web groupware.

+ So called “Time-accounts” represent the different projects. You can add “time-sheets” to these projects for every session or ideally the hours of every day. There are filters to show only one project or a relevant period or user. You can save these filter options as a favorite view. That’s really cool and flexible! One problem is, that you cannot redefine the default favorite, which it show at first.

+ Tine can store € per hour, “billable” and more billing infos, so you it automatically calculates the full time and price of a project.

There is no counter to start and stop the session times. You can only enter the periods, after you finished the day work. Its useful to keep track of the works of a team, but if you want to track the exact times, you need another timer-software and enter the periods from there to tine  :-/

Must test:  Exports!   It ~should~ export .ods, which would be reaaaaally helpful to present the time-sheet to clients directly or put it in a bill! But maybe i have to fill a bug report on that..


Is a good, old PHP web groupware with many, many modules. The project module interface is not easy to understand, but when you get it, you can even use time counters online.

Many functions in the projects module,…

EGroupware is a huge system, only for timetracking you do not want to install it. There are many options to setup, specially if there is more than one user, it gets really complicated to give correct permissions to everyone.

OpenOffice Table with Formulars

still the easiest and best solution?

+ Table calculation software offers a nice overview with dynamic calculations: Press [F2] in a table cell and you can enter formulars for calculation. This way, you can, for example, enter exact minutes and get hours by [cell] * 60.

+ In OpenOffice Writer you can keep track of times in a simple table inside a odt text-office document. No need to use Calc, the Table calculation

Also the other programs offer ways to enter billing info like € per hour.

– Teamwork? Its not easy to work together on stupid office documents. They are practically always locked by other users 😉

.odt file coming soon..

Shell Basics Workshop Report n. 3/3 Juli 2010

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By , July 27, 2010 03:24

>> nerdcafe Vetomat 26.7.2010        snufu/fuzzy speach, Zbog report

$ ncal -w

calendar for the current week (it shows the all month)

$ red

open a (strange) text editor in the terminal to go out: q + enter

$ mcedit filename

the famous midnight-command editor (apt-get install mc)

$ mc

clone of an oldschool filemanager


$ tput

initialize a terminal

$ reset

query terminfo database
(clear the complete terminal window)


$ cp "source" "destination"

copy files in directory (is an automatic paste)

$ mkdir "name"

make directory “name”

$ ls -l

list all the files and folders in the directory

(-l)     use a long listing format
as the details mode in a location window

$ ls -l "directory-name"

is giving the list of the called directory

$ pwd

Print Working Directory
shows the actual folder content

$ cd ..

go one level up

$ if cd /somewhere; then date;

Only if there is cd folder called like so then show the date

$ echo mario > test/.secret

with the point on the new name it will create a hidden file that is  normally not shown in the interface and  in the command ls

$ ls -a

to recall a hidden file in a list  -a

$ echo /.*

will call also all the hidden files


it represents the current directory


it represents the parent directory

$ rm filename

remove file

$ rm /dir/

remove folder

$ rm -r foldername

empty the directory    (delete the files but keep the folder)

$ set -x
$ set +x

start the behavior session
the commmand string is printed on screen before the execution

the command string session will not show anymore the command screen

$ echo foo | cat

“pipe echo foo into cat” write the info foo into the file and show the content (cat)
the 2 commands are connected to eatch other and have the same content

Report of Linux-works shell meeting in Vetomat 26.Juli.2010

Shell Basics Workshop Report n. 2/3 Juli 2010

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By , July 20, 2010 03:24

>> nerdcafe Vetomat 19.7.2010        snufu/fuzzy speach, Zbog report

$ nmap

scan the local subnet to check for available hosts – nmap returns all IPs of running machines in the specified subnet. scans IPs 1-100.

(you ll need to apt-get install nmap)

$ uptime

Shows when the pc started; how many users; load average; how many processes are running

$ date

gives you back a date and time

$ ncal

to call the calendar


Comment sign
to insert a not exacutable text, frequently used for human comunication instead of the normal typing in the terminal that is readed by default as a command to the computer


is a jolly to ask for existing files/Directory for example

$ echo D*

Desktop Dokumente…
(every file with the D as first letter in the directory where we are located)

$ fsdsf?

if you dont remember the last letter of a data
for example fsdfz
the command returns the possible files you are searching
like the asterisc but applies only on the last letter in doubt


the dollar $ itself
means a variable


the pipeline | between commands is to add multiple commands without writing multiple lines in the terminal


are to consider the string as text

$ rm filename

removes files – take care there is no restore the file will be deleted!

$ clear

clean the monitor terminal from previous output lines

$ iwlist wlan0 scan

scan for avalaible networks with network interface wlan0 (the 1. wlan card,usually)

$ ps

programs running by everybody

$ ps aux

more info about the running programs

$ ps aux | less

pipe the processes output into “less” – just for easy reading


to redirect and copy the command output to another program


attach the output left of >> to the end of the file right off >>
for example

$ echo hiho > foobar
$ cat echo >> foobar

will give as output



(escape) to take out special meaning and read the value as text
example echo “mb\”r*” gives the output

true is 0
and frequently in programming it is the opposite: true is 1 !!

$ wc

words count

$ wc -l

wordcount –lines

Report of Linux-works shell meeting in Vetomat 19.Juli.2010

Shell Basics Workshop Report n. 1/3 Juli 2010

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By , July 15, 2010 03:20

>> nerdcafe Vetomat 12.7.2010        snufu/fuzzy speach, TKilla report

LinuxWorks workshop about Linux usage of the terminal.

Weekly appointment every Monday in Vetomat at 19:00. Scharnweberstrasse 35, F’hain, Berlin.

the “shell” is the program in the terminal,
–> Application –>Accessories —>Terminal
where you can run all the commands installed on the system
(the shell is called “bash” or “sh” or similar)

>> nerdcafe Vetomat 12.7.2010        snufu/fuzzy speach;  Tk report

all lines in this text starting with $ can be executed in a terminal
watch the output of the commands!!  (almost) every error is written there!

useful commands:
Its enough to write few letters and use TAB key — multiple times —
to autocomplete the command!!

arrow-up key     – goes back to the previous command
ctrl+r command    – search in command history

the format of the command is always:

commandname parameter1 parameter2 ..
programname -h          or
programname –help  for a long version

gives a short help and possible parameters of the command

$ man programname

manual of the program – RTFM – read this to know what it does 😉

$ apropos burn cd

tells which programs are doind the task

$ ssh user@hostname

login to another computer by console

$ screen -x

join a shared session (on another computer)
must be connected before to (ssh username@hostname)
screen runs multiple terminals (on a remote system) and you can switch between them

screen commands:
ctrl+a    a    – switch to another terminal
ctrl+a  ESC      – scroll with cursor keys

$ ls

list content of current directoy

$ ls -a

list –all: shows also hidden “.” dot-files (config files mostly)

$ less

shows 1 PAGE of output of a command  (contrast to “more” – that shows more 🙂 )

$ echo hiho > foobar

write hiho into the variable “foobar”

$ cat myman</pre>
<pre>$ tom

outputs the name of the var

$ cd /
"change dir" to root-dir "/"
"/" is the whole system - including all discs/partitions

$ cd    or  cd ~

“change dir” to your home dir “/home/yourusername/”,

$ echo foo > file1

write “foo” into a textfile file1

$ cat file1

print output of file1

$ head

show first lines of file

$ head -n 50

show first 50 lines of file

pipe command “>”

$ iwconfig > file1

write _standard_ output to file1

$ iwconfig > file1

write _serror_ output to file1 – “2” is the code for error outputs

$ echo ritual > fileX

add lines to file

$ echo ritual2 >> fileX
$ echo ritual3 >> fileX

connect terminal to remote window system

$ ssh username@hostname

connect to another computer and executes commands there

$ ssh -X username@hostname

activate X11 windowing forward on other computer

$ username@hostname: firefox

starts for example firefox on the remote machine and shows it on your screen

$ mv    file1 newfile

move file1 to another

$ less filename

show content of a text file

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