Category Archives: GNU/Linux

Ubuntu to Windows XP folder sharing

Some Linux security tips for Rootkit Hunter

If you run Rootkit Hunter and you haven’t modified your stock Red Hat configuration of the SSH service (sshd), chances are it will find that you allow root logins. Rootkit Hunter considers these as possible security risks. However, to fix this, you can simply login as root, fire up a text editor, and edit the file

/etc/ssh/sshd_config

Make the following changes:
You’ll find a commented line like this:
#Protocol 2,1
Uncomment it and change it to:
Protocol 2
This will disallow logins using the older versions of the protocol

Look for the commented line
#PermitRootLogin yes
Uncomment the line and change it so it reads:
PermitRootLogin no
This will configure sshd NOT to allow root logins.

After this, be sure to restart sshd (assuming you run the service in the first place so:
Service sshd restart

By the way Rootkit scanner is scanning tool to ensure you for about 99.9% you’re clean of nasty tools. This tool scans for rootkits, backdoors and local exploits.

Get Kindle for PC to Ubuntu (if you really don’t like Calibre)

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Amazon’s Kindle a popular portable e-book reader device, lately made Kindle for PC application that allows you to download and have books on your computer rather than having a portable e-book reader device. There’s only Kindle Windows version but the nice thing is you can have this application in Linux.
This is tested in Ubuntu 9 running Gnome. You can use different version of Linux, but first you must have Wine HQ installed to you computer. Then download the EXE file of Kindle for PC application in Amazon.
Install this with Wine HQ software loader and proceed to the normal installation, the same thing that you do in Windows environment.
Note:

– At your first run you won’t see anything at all

– Configure Wine first and add Kindle for PC as an application and make it run in Windows 98 mode

– If it won’t work, change to other mode

– When it opens successfully you have to input you Amazon email add and password to register the software.

But, please, don’t forget that if you prefer open source software, you can directly use Calibre, a powerful free software we posted a while ago.

LibreOffice vs. OpenOffice! What’s the difference?

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Since the end of September 2010, a group of German OpenOffice volunteers left definitively the project to join the The Document Foundation and develop a fork version of the famous free productivity platform now controlled by Oracle. After just few months we have LibreOffice: a (more or less) new cross-platform productivity software based on OpenOffice version 3.3 beta. We compared both the free suites and apparently we did not notice particular differences in features and tools. Also the graphic interface is similar between the two platforms and the buttons position is the same. At the moment LibreOffice supports less languages in its Linux and MAC OS X versions and it is not compatible with Solaris based PCs. Both the productivity platforms are able to use the OpenOffice extension library. Consequently, it is clear that it’s too early to notice relevant technical differences between the two competitors but, for sure, something will show off in the next versions. In fact LibreOffice has been created to guarantee a vendor independent office suite which can be developed with no copyright software chunks. The goal is prestigious and we can only say, Good Luck LibreOffice!

Stay safe! Install Rootkit Hunter on Linux and FreeBSD

Computer Borders on Facebook

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We decided to begin this year publishing our semi-new Facebook Page and to re-stylish, just a few, our right side bar. We hope to meet you on Facebook and, again, Happy New Year!

Remote Control your Ubuntu

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Managing the Remote Desktop on Ubuntu is quite easy. You can allow users to access your desktop with VNC Viewer utility that is included in Ubuntu pack and can be downloaded for free also in Windows PCs. The Remote Desktop feature is very useful but follow, at least, one important safety tip: when your desktop remote control is enabled, the only defense against attacks is your firewall and it must be properly installed and configured correctly. In any case, do not forget that Remote Desktop still represents a first level security risk.

To tune up the Remote Desktop just follow these simple steps:

– go to System > Preference > Remote Desktop on the Gnome top menu:

– check the first two check boxes for remote to be enabled.

– if you want to connect your PC through the web and a “Your desktop is only reachable over the local network” notice appears, please do not forget to forward Port 5900 to the IP you see a line below in the menu

– in the Security section, when selecting the “You must confirm each access to this machine” check box, you will be needed to be at the computer to allow the other person to access your desktop. If you are trying to remote access one of your own computer, you would want to uncheck this box

– do not forget that the password check box should always be checked and you should enter a real secure password You will be prompted for this password when you try to log on

– for a better safety be sure that an icon will be displayed on the Ubuntu upper bar when someone is connected

“Your Desktop is Only Reachable Over the Local Network”

Strategic market analysis through Twitter – Know your competitors’ strategy and fight them!

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Your competitors are on Twitter and they are very active. Good to know but is their strategy really effective? Difficult to know because normally you have not enough time to constantly monitor more than a couple of them. A good market analysis strategy is to read their posts in a certain period of time but Twitter doesn’t keep this easy because you have to spend hours to expand their tweets before have a good view of what information your competitors wrote. Moreover, Twitter allows you to view only the last 3,200 tweets. For this reason I normally use Twitter XL. This online free service allows you to catch and save the last 3,200 tweets just inserting the Twitter name and click on Get Tweets. After a bunch of seconds (or, more often, some minutes) you will have a complete list including the last 3,200 tweets (retweets included) and you can export them in a CSV format. This file can be imported in a spreadsheet (e.g. OpenOffice) and clearly visualized. If you really know what you are looking for, you have a terrific picture about timing, source, contents and trends of the competitor you are monitoring. Not only you can discover when and about what your competitor is more active but you will also know if he/she is using some particular online service to tweet. This data mining tool is recommended for business or just for fun if you are a meddler.

DupeGuru: potente applicación para encontrar Archivos, Música y Fotos duplicados

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Hoy os quiero hablar de un aplicación disponible en 3 diferentes formatos. se llama DupeGuru . Me parece una de las aplicaciones mas practicas y sencillas para encontrar: Archivos, Fotos o Canciones repetidas. Desde la propia pagina Web es posible descargase la que se necesites; es disponible para Windows, Mac OS X y por supuesto Linux ( 32/64 bit ) para usuario Debian/ Ubuntu es posible descargar directamente el paquete .deb e instalarlo en un par de click. Con esta aplicación podremos ver los archivos que tengamos duplicados y gracias a los datos que vienen incluidos será posible decidir cual nos interesa guardar y cual eliminar para recuperar espacio y tener mas orden en nuestro PC. En la pagina de descarga es posible elegir cual de las 3 aplicaciones se quiere descargar según nuestras necesitad. En la misma pagina hay disponible otras aplicaciones: MoneyGuru, PictureGuru y MusicGuru. La primera es una aplicación especifica para mantener controlada nuestras finanzas y las otras son aplicaciónes especificas para mantener organizada nuestra colecciones. En fin, os animo a probarlas porque yo ya lo he echo y tengo que decir que merece la pena.
Descarga DupeGuru