Category Archives: software for Linux

Ubuntu to Windows XP folder sharing

Computer networks are sometimes comprised of various methods, and while operating a network made up fully of  Ubuntu desktop and server computer systems would definitely be enjoyable, some community environments must consist of both Ubuntu and Microsoft Windows systems working collectively in harmony.
When making an Ubuntu shared folder that was created with NTFS be accessible to Windows XP steps. Run the NTFS configuration tool on the drive.
It is advisable have admin rights to do that modification.
Select: Application –> Accessories –>Terminal
then type the following:

sudo gedit /etc/samba/smb.conf

In the [global] section, add the following line:

usershare proprietor only = false

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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.

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Stay safe! Install Rootkit Hunter on Linux and FreeBSD

Rootkit Hunter is a Unix-primarily based scanning tool that scans for rootkits, backdoors and possible local exploits. It does this by comparing SHA-1 hashes of vital files with known good ones in online database, looking for default directories (of rootkits), improper permissions, hidden records data, suspicious strings in kernel modules and particular tests for Linux or FreeBSD. Most instances rootkits are self-hiding toolkits utilized by blackhats, crackers and script kiddies, to keep away from the attention of the system admin. If you’re unsure  as to whether your system is compromised, you will get a second opinion from sources such as Linux-oriented forum. If your system is contaminated with a rootkit, cleaning it up will not be an option. Restoring can be not an option unless you might be expert, and have autonomous and an impartial means of verifying that the backup is clear, and does not include misconfigured or stale software. Never trust a potentially compromised machine! Basically a clean install of the OS is always advisable after backing up the system. AddThis mp3 link

Rediscover Prism by Mozilla (Ubuntu, MAC and Windows tips)

In 2007, when Prism was launched, there were some enthusiastic reviews about this application. Then the widget era began and Prism popularity decreased. Anyway, Prism is still a powerful application for all that people who desire to run their more often used web application saving RAM and CPU resources. Prism, based on XULRunner, is multi platform, easy to use and very flexible. To use it on Ubuntu you can launch the Terminal and type:

sudo apt-get install prism

or using the Synaptics Package Manager (System —> Administration —> Synaptics Package Manager). Then go to Applications —> Internet —> Prism and a small windows appears. Now, fill in all the required information: the web application URL, the name you prefer, settings and do not forget to click on the Desktop shortcut option. At this point you will find a new rough icon on your Desktop with the name you chose. The first time you use it, with the right mouse button click on it and go to Properties —> Permissions and Allow executing file as program. If you want to change the icon you have to click on it (with the right mouse button), go to Properties —> Basic and choose your favorite icon clicking the icon on the upper left corner. If all are steps are annoying for you, it is possible to use Prism as add-on for Firefox. In this case, on Firefox, go to Tools —> Add-ons —> Get Add-ons and type Prism on the search bar. You will install Prism as a simple add-on for Firefox. Now, you can automatically generate a Prism application just clicking on Tools —> Convert Website to  Application when you are in the web application page.

On Windows or MAC we suggest to download the standalone package directly from the official web page or install Prism as Firefox add-on following the same steps we described for Ubuntu. If you use the Prism standalone package you have to decompress it in your favorite location. For Windows users: when you set up a new Prism application, try the tray menu option but do not forget to click on the Desktop shortcut or you will not be able to find again the application after you close it.

In my experience, Prism is really useful with all the Google web applications, with Zoho services and Pandora. Try and enjoy it! AddThis mp3 link

How to protect your profile and emails on Thunderbird 3 (Ubuntu and Windows instructions)

On Thunderbird, the only way to be 99% sure nobody will read your emails is to save your profile on an encrypted folder (or disk partition) using e.g. TrueCrypt but if you are not concerned that you are under surveillance, you can simply use a quick and useful trick that allows Thunderbird to ask for the Master password every time you launch it.

In Ubuntu you have to follow two different steps. First of all, go to Edit —> Preferences —> Security —> Passwords and create your Master Password. Secondly, go to Edit —> Preferences —> Advanced —> Config Editor (click on “I’ll be careful, I promise”). Then in the filter bar, type password and change the parameter for mail.password_protect_local_cache to True. The next time you will launch Thunderbird nothing will be displayed (old and new emails) before you insert the correct Master Password.

If you are using Thunderbird on Windows you have to modify mail.password_protect_local_cache going to Tools —> Options —> Advanced —> Config Editor (click on “I’ll be careful, I promise”). Then, as for Ubuntu, in the filter bar type password and change the parameter for mail.password_protect_local_cache to True. AddThis mp3 link

How to uninstall software on Ubuntu

UbuntuInstalling software on Ubuntu is really easy but sometimes we can have problems to uninstall it if we have not used the Package Manager (Synaptic till Ubuntu 9.04 and later through the Software Center) or a .deb package. To fastly uninstall all the software you do not need or you are not fond of, you can type in the Terminal:

sudo dpkg -r your_file

An alternative and powerful way is typing:

sudo apt-get remove your_file

(where your_file it is the name of the software you want to remove)

or, if you want to completely cancel also the configuration files:

sudo apt-get --purge remove your_file

If you want to check what software is installed on you Ubuntu you can use:

dpkg --list

and you will obtain a complete list of software and a very short summary for each package. AddThis mp3 link

CLI Companion: una ayuda concreta para utilizar la Consola añadiendo una lista automatizada de comandos

Hace unos días he encontrado esta nueva aplicación para Linux, se llama CLI Companion. Aunque Linux ha evolucionado muchísimo y hay que reconocer que ya casi no hace falta hacer uso de la Consola para ejecutar programas y tareas varias, pero también hay veces que gracias al uso de la Consola se puede solucionar pequeños problema que de otra forma seria bastante mas complicado. En esos casos CliCompanion nos hecha una mano añadiendo una lista con diferentes comandos junto a nuestro terminal. La lista de los comando no es infinita, viene con unos cuantos; para cada comando hay una referencia donde se explica la función, también es posible añadir comandos y los parámetros correspondientes. Además CliCompanion tiene un apartado de búsqueda donde es posible encontrar el comando que mas nos interese en cada momento. Desde cuando lo instalé en mi Kubuntu 10.04, tengo que confirmar que es una muy buena aplicación y puede ser instalada con lo repositorios correspondientes y tener futuras actualizaciones o directamente através el paquete .DEB. Os dejo el enlace de la Web: http://okiebuntu.homelinux.com/okwiki/clicompanion AddThis mp3 link

How to easily install programs on your Windows or Ubuntu computers: allmyapps.com

This week, in our Linux Page (in Spanish), we have added a brief post about allmyapps.com a useful website which allow you to easily install software on Ubuntu (8.04, 8.10, 9.04, 9.10) and Windows (XP, Vista, Windows 7).  After a simple registration you can choose the free software you prefere to install and in few clicks and some minutes you are ready to use your new programs. Allmyapps.com, automatically recognizes the OS you have installed on your PC. On allmyapps we found many useful softwares and every month more programs are submitted by readers and added to the website for the installation. For Windows we also positively tested another website ninite.com where we found many free softwares ready to be dowloaded and automatically installed.  Easy to use and useful! AddThis mp3 link

How to repair Flash on Ubuntu 9.04 Jaunty

This week, in our Linux Page (in Spanish), we have written some easy instructions to repair the flash plugin on Ubuntu 9.04 Jaunty. In fact, after a brand new install on my Acer Aspire Athlon X2 I had big problems in visualizing Flash contents on Firefox 3. I tried to reinstall the plugin different times but the result did not change. Finally, reading a page in ubuntuforums.org I find the right solution for my problem. First of all you have to open Synaptic Package Manager (in System – Administration) and remove all the swfdec packages (in my case swfdec -mozilla and swfdec -gnome). Then, using the Terminal you have to type sudo apt-get install flashplugin-nonfree. Now you restart Firefox and Flash contents will be available again. We believe that this solution is really fast and practical but if you know a better one which could permit us not to install non free code please let us know. AddThis mp3 link

How to create free different local telephone numbers linked to your Skype identity: Ring2Skype

This week, in our Linux Page (in Spanish), we posted a brief post about Ring2Skype. Ring2Skype is a new free service which allows you to create local telephone numbers linked to your Skype user-id. After filling in few datas you get a telephone number in 31 different countries. In your email you will find a welcome letter with a summary of all the data of your new Ring2Skype account, your new telephone number and an extension to share with your local contacts. In this way, a person located in a different country could call you spending just for a local call. On the other hand it is possible to create more local telephone numbers so all your contacts in different countries could be in contact with you as if you are living in their same city. Recommended if it will remain free also in the future! AddThis mp3 link