Ha sido galardonado con el Premio Príncipe de Asturias de Investigación Científica y Técnica 2009, compartido con Ray Tomlinson, inventor del correo electrónico.

¿ Quien es Martin Cooper ?

Hola, ¿ Esta Dios ?

Martin Cooper (nacido en 1928, en Chicago, Illinois) es considerado el padre del teléfono móvil. Cooper es el CEO y fundador de ArrayComm, una compañía que trabaja en la investigación de antena inteligente y la mejora de la tecnología inalámbrica redes, y fue el director corporativo de Investigación y Desarrollo de Motorola.

Veamos unas declaraciones que hizo hace poquito.

El iluminado que veis en el vídeo, empieza contándonos una bromita, que se contaban el y sus amigos, hace unos añitos.

Que cuando cada niño naciera se le asignaría un número telefónico y si no contestaba es porque ya se había muerto.

¿ Pilláis la broma ?

¡¡¡JA,JA,JA,JA,JA,JA, ME PARTO!!!

¿ Que son las antenas “inteligentes” ?

Bueno el viejo lo explica bastante bien, creo que a todos nos ha quedado claro.

Un vídeo explicativo:

Bueno que me pierdo….

Este tio nos cuenta que el móvil nos hará vivir más, mejor, y que sera nuestra salvación.

Y tarataratararatarara….

Vamos: Móvil= Dios

Ya nadie recuerda, incluso a mi me cuesta recordar, si verdaderamente existió una época donde no existían los moviles ( mis recuerdos se esfuman ), el móvil es el chip del futuro, toda las aplicaciones que se le irán adheriendo, acabaran convirtiendolo en el verdadero chip de vigilancia, por que seamos sinceros, que necesidad hay de obligar ha inyectartelo, cuando la misma tecnología acabara formando parte de tu cuerpo, primero de forma superficial para adoctrinarte, y luego de manera más directa, cuando forme parte de una  moda.

Motorola imagina el celular del "futuro"

Olvidense de chips en vacunas, o tirados desde chemtrails, (aunque no dudo que hay experimentos, o empresas que lo utilizen ), el verdadero chip, el que contara tus pedos, y todos tus movimientos, sera integrado en ti mediante el avance tecnológico, sin obligarte, mediante modas, seras tú el que lo desees, el que desees formar parte de la señal, seras tú el que desees ser el móvil del futuro.

¿Preparado para la modificación de vuestro ADN, Dioses del futuro….?

O consumo regular e responsável de cerveja diminui o estresse e melhora a eficiência do metabolismo (conjunto de reações químicas que ocorrem no nosso corpo) em dietas ricas em gordura. A informação é de um estudo apresentado nesta sexta-feira (6) no Chile.

O estudo demonstra que ratos de laboratório que tomaram quantidades de cerveja de acordo com os padrões internacionais de “consumo responsável” ficam menos estressados e metabolizam melhor os carboidratos. Segundo os pesquisadores, para uma pessoa adulta o consumo responsável é de duas latas ou 0,7 litro por dia.

A pesquisa, desenvolvida entre agosto de 2008 e agosto de 2009, foi realizada em Santiago do Chile pelo Instituto de Ciências da Faculdade de Medicina Clínica Alemã-Universidade do Desenvolvimento, liderada por sua diretora, Paulette Conget.

Para avaliar o efeito do estresse sobre os ratos, os pesquisadores deram a um grupo de animais dez gotas diárias de cerveja durante três meses e meio, enquanto outro grupo teve sua dieta normal mantida. Ao passarem por um estresse controlado depois desse período, os ratos que tinham consumido cerveja apresentaram menores níveis de excitação emocional que os que não haviam consumido.

Já para analisar o efeito sobre o metabolismo, alguns ratos foram alimentados com uma dieta normal e outros com uma dieta rica em gordura, e a metade dos indivíduos de cada grupo recebeu dez gotas diárias de cerveja. Os ratos que consumiram a dieta rica em gordura e cerveja subiram menos de peso que aqueles que foram submetidos à mesma dieta, mas não ingeriram essa bebida alcoólica – apesar de o acesso a água e comida ser livre e sua atividade física ser a mesma.

Ok, não era preciso nenhum estudo pra provar que cerveja reduz o stress, mas porra, usaram ratos? Porque ninguem me ligou?

via Testosterona

SÃO PAULO – Consórcio é formado para explorar o potencial solar e do deserto do Saara e Oriente Médio. ( Paula Rothman, de INFO Online )
via INFO Online

Eu adoro o fato de smartphones deixarem meus bolsos mais vazios, sem gadgets extras como um tocador de MP3 ou uma câmera. Mas o dr. Martin Cooper, ex-engenheiro líder da equipe da Motorola que desenvolveu o primeiro telefone celular, não é muito fã disso.

O inventor de 80 anos, que também criticou o iPhone por achá-lo excessivamente complicado e difícil de usar, disse em uma conferência privada em Madri, nesta semana:

Sempre que você cria um dispositivo universal que faz todas as coisas para todas as pessoas, ele não faz bem nenhuma das coisas. Nosso futuro, acho, é um número de dispositivos especialistas que focam em uma coisa que melhorará as nossas vidas.

Eu entendo o ponto básico: faz de tudo, mas nada direito. E essa é uma observação válida. Mas vários smartphones e sistemas operacionais mobile são decentes tocadores de música, e suas câmeras também estão melhorando. Sem contar todas as maravilhas de serviços baseados na web. Então, com todo o respeito, senhor, não estamos mais nos anos 80, e usar um iPhone (ou mesmo qualquer smartphone) não é mais como tentar programar o videocassete. [The Telegraph]

via Gizmodo Brasil

Martin Cooper, former lead engineer at Motorola said to have invented the handheld cellphone — really, his name is on the “Radio telephone system” patent and he’s credited with making the very first private handheld cellphone call from a busy New York City street on April 3rd, 1973. Well Marty doesn’t like those newfangled handsets. In fact, according to our sterling Mr. Cooper, “Our future I think is a number of specialist devices that focus on one thing that will improve our lives.” Words uttered this week during a conference in Madrid.

READ SO MORE OF MARTIN’S MADNESS

(Via: Telegraph.co.uk)

As we are constantly bombarded with news of the latest mobile phone or smartphone offering even more amazing features from GPS navigation to social networking to enhance our lives and make them easier, Martin Cooper, credited as being the lead engineer of the Motorola team that developed the mobile phone, has said that today’s phones have become ‘too complicated’ and try to do too many things for too many people. He feels that when you create a universal device that does so many things for so many people, it doesn’t do any of these things well.

The alternative, according to Cooper, is rather to have several specialist devices that focus on one thing that will improve our lives. But is this really what consumers want? Would having to keep track of several different devices really be an ‘improvement’ in our lives, or would we rather take the chance that the features may not work as well as Cooper would have hoped in order to take advantage of another improvement in our lives – the convenience of having everything in the palm of our hand at the touch of a button? Sales figures suggest that consumers are seeking phones with a range of features, with smartphone sales across Europe increasing by 140%.

Dr Jon Argar of University College London feels that there is no reason to believe that people are avoiding complicated technology, or that smartphones don’t have the capacity to cope with the additions designers integrate into them. Ultimately, the future of technology is in the hands of consumers, and most of them would rather have all their needs met by one device than have to seek other devices to supplement the ones they already own.

Perhaps Cooper, who has previously criticised the iPhone for being complicated and hard to use, is still accustomed to the technology used to create the first mobile phone, which he describes as weighing “over one kilo and you could only talk for 20 minutes before the battery ran out, which was just as well because you would not be able to hold it up for much longer.” It is certainly true that with that kind of technology we would not be seeing the advancements in mobile phones we are today, but with that as a stepping stone and with the advancements in technology we have seen over the past decade, there is little doubt that not only will we keep seeing more new features available on our phones to make our lives easier, we will also come to expect and demand them, if we haven’t already begun to do so.

Ya lo he dicho varias veces,… no me caracterizo por ser el más rápido de la blogosfera contando la actualidad, ni la propia ni la de terceros. Al fin encuentro un rato para este post que tengo en la nevera.

Hace tres semanas, tuvimos el honor de que los Premios Principe de Asturias a la Investigación Científica y Técnica 2009: Martin Cooper y Raymond Samuel Tomlinson visitaran la Fundación CTIC. A raíz de la visita, ambos son Patronos de Honor de la Fundación CTIC, junto con Vinton Cerf.

Visitar la Fundación CTIC, significa que se detienen con cada uno de los equipos de trabajo, y se les explica la línea de actividad, tipos de proyectos, … en definitiva ¿qué estamos haciendo?, ¿a qué nos dedicamos?, y qué tipo de actividad atisbamos. De ambos, la sensación que tuvimos, es que se han interesado por nuestra actividad, tenían datos, indagaron con curiosidad “científica”, y rápidamente se “mezclaron” formando parte durante unas horas de la Fundación CTIC.

Martin Cooper y gran móvil

Fueron unas horas muy cómodas, en las que me quiero quedar con una reflexión que realizó Martin Cooper. Comentó que era la primera vez que visita un Centro de Tecnologías de la Información y la Comunicación, en el que se establecía un foco claro en la persona, en el usario final respecto a los proyectos que se ejecutan. Que era realmente importante hacer llegar las Tecnologías de la Información y la Comunicación, al usuario final, y que en ese proceso hay que ser igualmente “ocurrente” e innovador.

Unos días antes de la visita de Martin Cooper, me habían entregado el Iphone, así que no me pude resistir a sacar una foto con Martin, (padre del teléfono móvil y que usa uno grande solamente para hablar) y el iphone. 

Martin Cooper y Paco Prieto con Iphone

 Para saber cosas sobre Martin Cooper: Dossier prensa Martin Cooper

Hoje em dia com tanta frescura nos celulares, até o inventor dele reclama que o aparelho está muito “balaqueiro”, como diz a matéria do site do Yahoo.

Inventor do telefone celular quer aparelhos mais simples

O inventor do telefone celular, Martin Cooper, declarou nesta quarta-feira que os aparelhos atuais estão muito complicados, com uma série de aplicativos e recursos como câmera e música, em relação ao primeiro deles, criado há mais de três décadas.

“Quando se cria um aparelho universal que faz tudo para todos, não faz nada bem”, disse Cooper, que trabalhou como pesquisador da Motorola, em uma conferência internacional sobre privacidade de dados em Madri.

“Acredito que nosso futuro seja uma série de aparelhos especializados focados em uma coisa que melhore nossas vidas”, explicou Cooper, hoje com 80 anos de idade.

O americano era engenheiro chefe da Motorola quando desenvolveu o protótipo do telefone celular. Fez a primeira ligação com um aparelho sem fio em uma rua de Manhattan no dia 3 de abril de 1973.

“O primeiro modelo de telefone celular pesava um quilo e só era possível falar por 20 minutos antes que a bateria acabasse”, contou.

“O que fizemos com este telefone foi criar uma revolução. Antes que o celular existisse, ligávamos para um lugar; agora ligamos para uma pessoa”.

Desde a primeira ligação por celular, a popularidade dos aparelhos só aumentou, e hoje mais de quatro bilhões de pessoas possuem pelo menos um, segundo Cooper, contra apenas 300.000 em 1984.

Headline: Mobile inventor says today’s phones are too complex

The inventor of the mobile phone says the devices have become too complex, an SMH/AFP tech news reported.

The inventor finds the current features from cameras to music too complicated compared the first wireless call more than three decades ago. Also, the first mobile phone weighed over one kilo.

The inventor, former Motorola researcher Martin Cooper, according to the report, said that ‘Whenever you create a universal device that does all things for all people, it does not do any things well.’

Well said, Mr Cooper. Well said.

Cep telefonunun mucidi Amerikalı Martin Cooper, birçok uygulama ve özelliğe sahip bugünkü cep telefonlarının çok karmaşık olduğunu söyledi
Motorola şirketinde mühendis olarak çalışırken 1973′te ilk cep telefonunu geliştiren Cooper (80), Madrid’de düzenlenen kişisel bilgiler ve özel hayatın korunması konulu konferansta, “Her türlü şeyi yapan evrensel bir cihaz geliştirildiğinde, bu cihaz bir şeyi düzgün yapamıyor” dedi.

“Geleceğin hayatımızı iyileştirmek için yapılacak, tek bir işleme adanmış bazı özel araçlarda olduğunu düşünüyorum” diyen Cooper, “İlk telefon bir kilodan ağırdı, bataryası 20 dakikadan fazla dayanmıyordu ama bu, uzun süre telefonun elde tutulmaması açısından iyiydi” diye konuştu.

AA

Este viernes se celebraba en Oviedo la entrega de los Premios Príncipe de Asturias. Como ya es habitual desde hace 29 años el Teatro Campoamor de la capital asturiana reúne a importantes exponentes de todos los ámbitos de la sociedad dese las letras a las artes pasando por los deportes… grandes (muy grandes) los premiados en las distintas categorías pero yo quiero quedarme con un premio a dos personas que han hecho algo realmente importante para la comunicación en el mundo. Se trata de Martin Cooper y de Raymond Samuel Tomlinson. Estas dos personas que aparecen en la foto adjunta no son los rostros más famosos del mundo ni salen en los programas de Telecinco junto a otras estrellas mundiales como Belén Esteban o Jorge Javier Vázquez pero su legado es si cabe más valioso que el de estas grandes estrellas mediáticas nacionales.

Dice el Jurado de los premios que acuerda por unanimidad conceder el Premio Príncipe de Asturias de Investigación Científica y Técnica 2009 a los investigadores estadounidenses Martin Cooper y Raymond Samuel Tomlinson, considerados los padres del teléfono móvil y del correo electrónico, respectivamente.

“Estos dos hallazgos se encuentran entre las más grandes innovaciones tecnológicas de nuestro tiempo, revolucionando la manera de comunicarse de miles de millones de personas en todo el mundo, y contribuyendo de manera decisiva al avance del conocimiento. En particular, son instrumentos clave para lograr los “Objetivos de Desarrollo del Milenio” de las Naciones Unidas, que aspira a que todo ciudadano del planeta ejerza su derecho a comunicarse.

Su impacto en la sociedad queda reflejado en los más de cuatro mil millones de usuarios de telefonía móvil y en los mil quinientos millones de correo electrónico y de otros servicios de Internet. Todo ello representa una importante ayuda a los países en vías de desarrollo, para los que supone una fuente de igualdad y de oportunidades, acercándolos a servicios básicos como la sanidad y la educación.

Con este Premio el Jurado quiere también reconocer el esfuerzo y la labor de todas aquellas personas que han contribuido al impulso y desarrollo de la telefonía móvil y de los servicios de correo electrónico, formas de comunicación que dan lugar a un mundo conectado, sin barreras geográficas ni temporales.”

¿Alguien concibe el mundo actual sin teléfono móvil? ¿y sin correo electrónico? Seguramente casi nadie (al menos de los que estáis leyendo esto a través del blog) se pueda imaginar prescindir en su día a día de ninguna de las dos y seguro que muchos de vosotros/as ni siquiera podáis ya separar vuestro e-mail de vuestro teléfono móvil.

Hace sólo 21 años Ray Tomlison consiguió enviar un mensaje desde un ordenador y recibirlo en otro, parecía entonces algo novedoso pero seguramente nadie podría pensar la trascendencia real que ha alcanzado. Hoy se envían en el mundo 4 millones de correos electrónicos por minuto, casi nada.

Augura Mr. Cooper (padre del teléfono móvil) un futuro maravilloso para la tecnología móvil que pasará posiblemente por dos grandes frentes: el desarrollo en campos como la salud mediante terminales conectados a las personas que detecten posibles alteraciones y así poder evitar enfermedades, una “revolución para la sanidad” pero también imagina terminales más usables que faciliten transacciones comerciales, realizar pagos, sacar dinero de cajeros… algo que sea “cómodo para la gente”

Mi reconocimiento desde este humilde rincón del mundo a estas dos personas que han contribuido de forma brillante a cambiar el mundo.

¡Lástima que sus inventos no tengan la misma trascendencia mediática que los devaneos amorosos de Jesulín de Ubrique! … en fin cada uno tiene sus Ambiciones

It has been a couple of months since the winners of the Prince of Asturias Awards were announced. Today at last, the official ceremony takes place in Oviedo, where the Prince and Princess of Asturias will present the awards to the laureates.

At 10am 16 bagpipe players performed in front of the Oviedo Cathedral "Alborada de los Premios Principe de Asturias" to welcome the guests

First Prince of Asturias Awards Ceremony in 1980. The young Prince giving the speech to start the Ceremony

Since its foundation in 1980, The Prince of Asturias Awards is meant to be a  recognition of the self-improvement spirit of individuals, entities and/or organizations from around the world who make notable achievements in the sciences, humanities, or public affairs. Amongst the prizes, each recipient receives a commissioned sculpture donated by Joan Miró:

Statue by Miro

This year’s laureates are:

Technical and Scientific Research: Martin Cooper and Raymond Samuel Tomlinson

Sports: Yelena Isinbayeva

Arts: Norman Foster

Concord: The City of Berlin, in the 20^th anniversary of the fall of the wall

Social Science: David Attenborough

International Cooperation: World Health Organization

Communication and Humanities: Autonomous National University of Mexico

Letters: Ismaíl Kadaré

I have to admit that amongst the 2009 winners, I’m very happy for Norman Foster, as he is one of my favourite architects. Concerning the award, he stated:

“I´m thrilled to accept the Prince of Asturias Award. It is a tremendous honour and a wonderful recognition of the importance of design as a catalyst in improving the quality of life. I would also like to thank the many collaborators and esteemed colleagues who share this achievement with me.”

London City Hall by Norman Foster

Caja Madrid Tower in Madrid by Norman Foster

Congratulations to the laureates! And for the rest of you, enjoy the weekend!!

-Rocio

Configuring the Samba conf.file [smb.conf]

First, create a shared folder by opening a [Terminal] and either typing or copy & pasting the following;

martin@linux:~$ sudo mkdir /home/my_share

make it available to all users;

martin@linux:~$ sudo chmod 0777 /home/my_share

install samba with;

martin@linux:~$ sudo apt-get install samba

stop samba running with;

martin@linux:~$ sudo /etc/init.d/samba stop

rename the current config file as a backup template with;

martin@linux:~$ sudo mv /etc/samba/smb.conf /etc/samba/smb.conf.backup

create a new config template;

martin@linux:~$ sudo touch /etc/samba/smb.conf

open new config file with;

martin@linux:~$ sudo gedit /etc/samba/smb.conf

now copy & paste in the details from the smb.conf file here, changing details of network name [my_network], computer name [my_linux_box] and the shared folder details [my_share] as required.

save and close the config file.

start samba again with;

martin@linux:~$ sudo /etc/init.d/samba start

Add yourself as a samba user with;

martin@linux:~$ sudo smbpasswd -L -a my_name

enter your admin password when asked.

martin@linux:~$ sudo smbpasswd -L -e my_name

Remove the 60 second to shutdown confirmation message in Karmic Beta.

Open a [Terminal] and type gconf-editor and press [Enter], now using the left-hand menu select [apps], then [indicator-sessions] and tick the box next to [ suppress_logout_restart_shutdown ]

Backup on Ubuntu.

Updated 09/11/09 to correct some errors!

This “How To” was written with the help of this article by Troy Johnson, here and amended were necessary to fit my needs.

I have 2 PC’s on a network and want to backup some files from one PC the [remote_client] to the other PC the [server] to do this I want to run a script from the server. The process can be atcheved using rsync & SSH and automated with a cron job on the server.

Step:1

We install on the server

open-ssh-server and rsync

and on the client openssh-client and rsync

This can be done via the Synaptic Package Manager or using the command line i.e.

~$ sudo apt-get install openssh-client

~$ sudo apt-get install rsync

you also may want to check that cron is installed and if you want a GTK version of rsync you could install gadmin-rsync.

So the files I want to backup are on the remote_client in the following folder; /home/martin/my_files

and I want to back them up on the server in the following folder; /home/martin/backups

Note: I have an account on both PC’s with the same name and password, and read access to both the source & destination folders.

On the server we test out a basic script called backup.sh and saved with the Permissions set to “allow executing as a program”, check out my post here for help with that, the content of the script is;

#!/bin/sh

## first script to copy files from remote_client to server ##

rsync -avz -e ssh martin@remote_client:/home/martin/my_files/ /home/martin/backups

save the script and then run it by typing;

~$ ./backup.sh

in a Terminal assuming you saved the script in your home directory /home/martin and called it backup.sh. You should be prompted for your user password on the remote_client then the process should start.

To make this more secure edit the ‘authorized_keys’ file in servers /home/martin/.ssh folder with a text editor and modify the line with ’server-rsync-key.pub’ information on it from this:

Step:2

Ok so that does the trick but if I’m to automate this script it needs to work without SSH asking me for my password each time. To do this I need to generate a private/public key pair, this is much more secure than adding the actual password in the text of the script or elsewhere linked to it.

We now need to be logged onto the server;

To generate the key pair I open a [Terminal] and issue the command;

~$ mkdir /home/martin/.key

to create a hidden folder in my home folder called .key [the dot makes it hidden], then;

~$ ssh-keygen -t dsa -b 1024 -f /home/martin/.key/server-rsync-key

Generating public/private dsa key pair.

Enter passphrase (empty for no passphrase): [press Enter]

Enter same passphrase again: [press Enter]

Your identification has been saved in /home/martin/.key/server-rsync-key.

Your public key has been saved in /home/martin/.key/server-rsync-key.pub.

The key fingerprint is:

etc. etc.

I now have 2 files in the .key folder in my home folder called;

server-rsync-key

and

server-rsync-key.pub

I now copy the server-rsync-key.pub key over to the remote_client into my home folder /home/martin and log onto the remote_client.

Now on the remote_client, I issue the following command in a [Terminal]

~$ if [ ! -d .ssh ]; then mkdir .ssh ; chmod 700 .ssh ; fi

[this checks to see if the folder .ssh exists and if not creates it]

~$ mv server-rsync-key.pub .ssh/

[this moves the key from my home folder to the .ssh folder, hidden in my home folder]

~$ cd .ssh/

[we now move to the .ssh folder]

~$ if [ ! -f authorized_keys ]; then touch authorized_keys ; chmod 600 authorized_keys ; fi

[this checks to see if there is an authorized_keys file and if not creates it with the correct permissions]

~$ cat server-rsync-key.pub >> authorized_keys

[this copies the contents of server-rsync-key.pub key into the file authorized_keys file.

If we now run our original script with the amendment below on the server it no longer asks for a password.

rsync -avz -e "ssh -i /home/martin/.key/server-rsync-key" martin@remote_client:/home/martin/my_files/ /home/martin/backups

Step:3

Now the key can be used to make connections to the remote_client, but these connections can be from anywhere (that the ssh daemon on remote_client allows connections from) and they can do anything (that remote_user can do), which could be dangerous.  To make this more secure edit the 'authorized_keys' file in remote_client /home/martin/.ssh folder with a text editor and modify the line ending user_name@server_name from this:

ssh-dss
yl6b2/cMmBVWO39lWAjcsKK/zEdJbrOdt/sKsxIK1/ZIvtl92DLlMhci5c4tBjCODey4yjLhApjWgvX9
D5OPp89qhah4zu509uNX7uH58Zw/+m6ZOLHN28mV5KLUl7FTL2KZ583KrcWkUA0Id4ptUa9CAkcqn/gW
kHMptgVwaZKlqZ+QtEa0V2IwUDWS097p3SlLvozw46+ucWxwTJttCHLzUmNN7w1cIv0w/OHh5IGh+wWj
V9pbO0VT3/r2jxkzqksKOYAb5CYzSNRyEwp+NIKrY+aJz7myu4Unn9de4cYsuXoAB6FQ5I8AAAEBAJSm
DndXJCm7G66qdu3ElsLT0Jlz/es9F27r+xrg5pZ5GjfBCRvHNo2DF4YW9MKdUQiv+ILMY8OISduTeu32
nyA7 etc....

to this:

from="10.1.1.1", command="/home/martin/.key/validate-rsync" ssh-dss bA402VuCsOLg
yl6b2/cMmBVWO39lWAjcsKK/zEdJbrOdt/sKsxIK1/ZIvtl92DLlMhci5c4tBjCODey4yjLhApjWgvX9
D5OPp89qhah4zu509uNX7uH58Zw/+m6ZOLHN28mV5KLUl7FTL2KZ583KrcWkUA0Id4ptUa9CAkcqn/gW
kHMptgVwaZKlqZ+QtEa0V2IwUDWS097p3SlLvozw46+ucWxwTJttCHLzUmNN7w1cIv0w/OHh5IGh+wWj
V9pbO0VT3/r2jxkzqksKOYAb5CYzSNRyEwp+NIKrY+aJz7myu4Unn9de4cYsuXoAB6FQ5I8AAAEBAJSm
DndXJCm7G66qdu3ElsLT0Jlz/es9F27r+xrg5pZ5GjfBCRvHNo2DF4YW9MKdUQiv+ILMY8OISduTeu32
nyA7 etc....

where "10.1.1.1" is the IP address of server, and "/home/martin/.key/validate-rsync" point to a script called validate-rsync as follows:

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

If server has a variable address, or shares its address (via NAT etc.) with hosts you do not trust, omit the 'from="10.1.1.1",' part of the line (including the comma), but leave the 'command' portion. This way, only the 'rsync' will be possible from connections using this key. Make certain that the 'validate-rsync' script is executable by remote_user on remote_client and test it.

So in my case the result looks like this:

command="/home/martin/.key/validate-rsync" ssh-dss bA402VuCsOLg9YS0NKxugT+o4UuIj
yl6b2/cMmBVWO39lWAjcsKK/zEdJbrOdt/sKsxIK1/ZIvtl92DLlMhci5c4tBjCODey4yjLhApjWgvX9
D5OPp89qhah4zu509uNX7uH58Zw/+m6ZOLHN28mV5KLUl7FTL2KZ583KrcWkUA0Id4ptUa9CAkcqn/gW
kHMptgVwaZKlqZ+QtEa0V2IwUDWS097p3SlLvozw46+ucWxwTJttCHLzUmNN7w1cIv0w/OHh5IGh+wWj
V9pbO0VT3/r2jxkzqksKOYAb5CYzSNRyEwp+NIKrY+aJz7myu4Unn9de4cYsuXoAB6FQ5I8AAAEBAJSm
DndXJCm7G66qdu3ElsLT0Jlz/es9F27r+xrg5pZ5GjfBCRvHNo2DF4YW9MKdUQiv+ILMY8OISduTeu32
nyA7 etc....

Our backup.sh script now looks like this:

#!/bin/sh

## second script to copy files from remote_client to server ##

rsync -avz -e "ssh -i /home/martin/.key/server-rsync-key" martin@remote_client:/home/martin/my_files/ /home/martin/backups

Step:4

I now need to run the script from a Cron job, first move the backup.sh script into your $PATH, for help with this check out my post here.

Now on the server open a [Terminal] and issue the command:

~$ crontab -e

This should open a text editor, normally vi, normally paste into it the following text as a reminder

# leave a space between each option #
# the * is a wildcard option #
# dayofmonth is 1 to 31 #
# dayofweek can be 0 – 6, 0 is Sunday #
# or use mon tue wed etc #
#
# mins hours dayofmonth month dayofweek command
# * * * * * * command

Then use Crontrol+o to save and press [Enter] to save, then Control+x to [Exit].

and test…

Cron tabs can be used to automate jobs on your system by running programs or scripts at prdefined times, dates or days, each user can have their own cron tabs or they can be run as root. To open a crontab, type the following in a [Terminal];

crontab -e

this will open in the vi text editor, but if you prefere the gedit text editor, run the following command;

export VISUAL=gedit

If you stick with vi then use Control+o followed by [Enter] to save your tab, then Control+x to [Exit].

When you run crontab -e, you will get an empty crontab with just the following [or similar] dispalyed;

# m h dom mon dow command

the headings are described below and I usually add these to the top of the file to make things easier to edit. So my crontab looks like this:

# m h dom mon dow command

# mins -> minutes (0-59)

# hours -> hour (0-24)

# DayOfMonth -> day of month (1-31)

# month -> month (1-12)

# DayOfWeek -> day of week (0-6) [Sunday is 0], or

# DayOfWeek -> day of week (mon – sun)

# You can use ‘,’ ‘-’ to give you 1,2,3,5 or 1-5 etc

# The * is used as a wildcard i.e every month

# m h dom mon dow command

# * * * * * /command

Examples;

each of the 6 command requires a space between them, here are a few examples;

### runs cron 2 mins past every hour ###

2 * * * * /home/martin/bin/play_sound.sh

### runs cron every 2 minutes ###

# m h dom mon dow command

*/2 * * * * /home/martin/bin/play_sound.sh

#01 * * * * root run-parts /etc/cron.hourly

#The run-parts script is simple enough: it just runs all the executables in the specified directory

### runs cron every fri at 15:30 ###

# m h dom mon dow command

30 15 * * * fri /home/martin/bin/backup.sh

Using Ubuntu NBR [Jaunty], When I right clicked on Firefox 3 icon in “Favorites” and selected “Remove”, nothing happend. Other icons can be removed and added but not this one. Could it be because I had aready removed Firefox 3 in synaptic in order to install Firefox 3.5? The answer was to remove the icon file firefox-fav.desktop from /usr/share/applications/ using the [terminal] as follows.

sudo rm /usr/share/applications/firefox-fav.desktop

I had too many entries on the Grub menu and decided to edit it, 1st I opened a Terminal and typed;

sudo cp /boot/grub/menu.lst sudo /boot/grub/menu.lst.back

and hit [Enter], which copies the menu file to a file called menu.lst.back in the same folder.
then I typed;

sudo gedit /boot/grub/menu.lst

This opened the boot menu in the gedit text editor, I then placed # at the start of any line I did not want to show on the menu, re saved it and re booted the laptop all done.

The notion of wireless phones represents one of the several denominations used to refer to cellphones, hand phones or mobile phones. Although first designed to render basic voice phone functions, such devices have in time been given more and moreadditional services and accessories. Thus, a whole range of other functions are available: besides normal messeging, you can get instant SMS, listen to the radio, watch TV, check your email, play games, browse the web, access the GPS, take photos or shoot videos with the inbuilt camera and so on. Wireless phones are really jam-packed with features, some more complex than the others.

Martin Cooper, the Motorola researcher is acclaimed as the father of the wireless phones. As for the first cellular citywide network, that was launched in Japan in 1979. Then, the automatic networks started their development in the North European countries in the mid-eighties. The commercial technology of wireless phones has undergone massive changes since then, with great boosts of growth in the technological and cellular systems they rely on.

Real competition between wireless phones and their producers started in the early 90s in the real sense of the word since that was the time when the GSM standard was first introduced. It took very little to pass from SMS messaging to conversations, and ever since, cellulars have climbed in the top of the communication pyramid. To understand the extent at which the phenomenon has developed, we can refer to the drop in the camera sales with the invention of the built-in cell high quality cameras that enable the high technical standards.

The Internet and the evolution of the wireless phones ran in parallel for a while before overlapping, and since then they have remained inseparable. This is how modern facilities like web browsing, email connection, fax, online video access and lots of others became available. Digital technology also had its contribution to the development of sophisticated batteries and the miniaturization of all the cellphone components. We are justified to ask ourselves about where this road of cell phone evolution is taking us. Will we try to make things simple again or further relish

First the bad news, although some scanners are supported in ubuntu/linux many are either not supported at all or only basic scanning is supported, in my case my Visioneer 4800u is not supported at all! As I wanted to move completely over to ubuntu I decided to buy a second hand scanner from eBay. I checked for compatible scanners on the SANE [Scanner Access Now Easy] project page here by checking out the Supported Devices listed my Manufacturer page. I then bid on a Canon CanoScan N650U Flatbed Scanner and got is for £12.31 including postage [result!]

If your scanner is supported then you may need to add the SANE front and back ends to your system as follows: Open the [Synaptic Package Manager] and add the the following packages;

sane, sane-utls, xsane & xsane-common

You can now plug in your scanner and open the [XSane Image Scanner] from the [Applications], [Graphics] menu and if all goes well your scanner name should show in the dialogue title bar and if you press Scan you should be up and running.

Ubuntu Gusty v7.10 and possibly older versions may need to have scanbuttond (yes there is a d at the end) running for the scanner operation to be detected. To add the scanbuttond type the following in a [Terminal];

sudo apt-get install scanbuttoned

To run the program manually type the following after the prompt;

scanbuttond

To make this program run at start-up so you don’t have to do this each time you want to scan open [System], [Preferences], [Sessions] click on the [Start-up Programs] Tab then click the [+ Add] button. A new window will appear, add [Scanbutton] in the [Name] field and scanbuttond in the [Command] field [remember the "d" at the end of scanbuttond, then [OK] that and [Close] when you re start the PC scanbuttond will be running.

Some command line scanner options to try, type or copy and paste the following into the [Terminal] after the prompt;

This will produce a scan without using the XScane graphical interface

scanimage -x 210 -y 290 –resolution 400 –mode Color > /home/yourname/output.jpg

change [yourname] for the name of your [Home] folder and this should produce a scan called output.jpg.

These command line options will help identify your scanner for problem solving;

sane-find-scanner -v -v

scanimage -L

cat /proc/bus/usb/devices

redirect their output to a text file to make things easier by adding >> scanner_test.txt to the end of each line. The >> part appends the text to the end of the last so you will not overwrite the output from the last command.

sane-find-scanner -v -v >> scanner_test.txt

or use this script, create the script file using;

touch scanner_test.sh

open the file with;

gedit scanner_test.sh

then copy and paste the text below into it.

#!/bin/sh
## created by Martin Cooper 27 May, 2009 ##
##
echo “Scanner test script” >> scanner_test.txt
echo “sane-find-scanner -v -v output” >> scanner_test.txt
echo “*********************************************” >> scanner_test.txt
sane-find-scanner -v -v >> scanner_test.txt
echo “scanimage -L output” >> scanner_test.txt
echo “*********************************************” >> scanner_test.txt
scanimage -L >> scanner_test.txt
echo “cat /proc/bus/usb/devices” >> scanner_test.txt
echo “*********************************************” >> scanner_test.txt
cat /proc/bus/usb/devices >> scanner_test.txt

now save the file and make it executable with;

chmod +x ~/scanner_test.sh

and now run it by running this command

./scanner_test.sh

or double click on the file. The result will now be in the file scanner_test.txt in your home Directory.

Notes: Feisty v 7.04 onwards Gnome Desktop

Create a Gnome Desktop launcher for a program that does not create one of it’s own via the command line.

The basic format for a Desktop launcher is;

[Desktop Entry]
Name=Songbird
Comment=Media Player
Exec=/home/user/Songbird/songbird
Icon=/home/user/Icons/songbird.png
Terminal=false
Type=Application
Categories=Application;AudioVideo;

Open a text editor and copy & paste the above text into it, changing the following options;

Name: The name you wants to see in the menu for the program.
Comment: The message the comes up when you fover over the menu item.
Exec: the command that start the program.
Icon: the path to an icon of your choice.
Terminal: leave as false to not open in a [Terminal].
Type: leave as Application.
Categories: listed below;
Internet is Network
Sound & Vision is AudioVideo
Games is Game
Office is Office
Accessories is Utility
Graphics is Graphics
Programming is Development
System Tools is System
System preferences is settings

save it naming it your_name-name_of_program.desktop i.e. martin-songbird.desktop

The first part of the file name can be anything you like but must be there as the file must have the format name-prog_name.desktop. You should now have a desktop icon in you home Directory which you can then click on to open the program. If nothing happens and you need to edit the file the easiest way is to open it from a [terminal] using the following command;

gedit martin-songbird.desktop

or by opening your favorite test editor and then opening the file from it as nautilus cannot open these files and does not display the full file name. You can now move this icon to your Desktop if you wish or add it to your Applications menu using the following command;

xdg-desktop-menu install ./martin-songbird.desktop

Notes: Ubuntu Jaunty Gnome Desktop

Creating a symlink [symbolic link, known as a shortcut to Windows users] using the command line. To create a symlink to a file called test_file in /home/martin on the desktop we open a [Terminal] and because it defaults to the home directory create the test file test_file with;

touch test_file

and add some text to it with

echo “This is a test file” > test_file

now we create the link with

ln -s /home/martin/test_file ~/Desktop

this will create a symbolic link to the file on you desktop, open the file using it and you should see the text we added above. Note the ~/ option is a shortcut of /home/martin i.e. to your home folder. Now lets create the symlink again with a different name

ln -s ~/test_file ~/Desktop/”My Test File”

The same command can be used to create symlinks to Directories and symlinks can be removed with rm -f, so our last symlink can be removed with;

rm -f ~/Desktop/”My Test File”

Using Ubuntu Jaunty on the Gnome Desktop