Tag Archives: Linux

AuctionSieve: the best multiplatform (Linux, MAC OS, Windows) software to manage your ebay searches

AuctionSieve Christmas time! And you want to buy some presents… ebay could represent a good option to save some money but it needs a lot of time because you want to be sure you are bidding at the right price to the best (used or not) item.

The web is full of websites which help you to discover and follow items on ebay but, in the real world, from the moment you find something to the end of a winning auction many days pass and often you have not time to follow and properly bid for your “catches”.

The software I use and recommend for ebay auctions is AuctionSieve. This software is written in Java and consequently it is multiplatform. In the Download Page you can always find the right version for the OS you are using.

On Linux, download AuctionSieve, extract the file and save it to (e.g.) Home. Open the folder you created and give the permission to execute as program to auctionsieve.jar (right button on the mouse –> Properties –> Permission –> Allow executing file as program”). Then open it with (in my case) -OpenJKD Java 6 Runtime-.

AuctionSieve is intuitive but you have to “play” with it for a couple of hours before dominating all its features. You can save your searches, focus on just one category, filter items using “catch” or “trash” words options, create personal watchlists and evaluate the price of a particular item using the “Price History” tab. If you repeat a specific search you did in the past, you can decide to automatically exclude all the items you have already seen before and you will spare more time examining the results. Moreover, when you begin a “New Sieve”, you can also import the same search criteria you created and selected during a previous search you did.

Let me suggest you to read the AuctionSieve Tour page before using it. In this way you will skip all the most common mistakes that beginners usually make.

How to configure Firestarter to use VPN services on Linux

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VPN Linux In my experience Firestarter is a effective firewall and, on Linux, it starts automatically every time we boot up Ubuntu. But, when I decided to use a VPN tunnel through openvpn, I had some connection problems. In fact I was able to initialize my VPN services but, after a while, all the internet connections were mysteriously shut down.

The “problem” was Firestarter which cut off the connection as forbidden considering my inbound/outbound Policy.

To solve this matter you have to open a tunnel on Firestarter to allow VPN working:

1- open the configuration file my VPN provider gives to its users (generally its a text file containing all the configuration info used, in my case, by openvpn) and I searched for the IP address of the default starting connection used to authenticate the VPN services (e.g. 177.458.563.25). Save somewhere or memorize this VPN IP address.

2- open a Terminal and type:

sudo nautilus

3- using nautilus go to File System (it’s before home folder) and open etc–>firestarter and open the file user-pre using Gedit (or your preferred text editor)

4- the user-pre file is usually empty so don’t panic and write these lines into it:

iptables -A INPUT -j ACCEPT -s xxx.xxx.xxx.xxx -p esp
iptables -A INPUT -j ACCEPT -s xxx.xxx.xxx.xxx -p udp -m multiport -sports isakmp,10000
iptables -A INPUT -j ACCEPT -i tun+
iptables -A OUTPUT -j ACCEPT -d xxx.xxx.xxx.xxx -p esp
iptables -A OUTPUT -j ACCEPT -d xxx.xxx.xxx.xxx -p udp -m multiport -dports isakmp,10000
iptables -A OUTPUT -j ACCEPT -o tun+

Now you have to substitute the xxx.xxx.xxx.xxx with the VPN IP address you have found at step 1 (in my example was 177.458.563.25).

5- Save the user-pre file and close Gedit and Nautilus

6- open a new Terminal and restart Firestarter typing:

sudo /etc/init.d/firestarter restart

That’all! Now your VPN works on your Linux computer and Firestarter has accepted a new Routed IP Tunnel into its allowed policies configuration.

Solve audio troubleshooting on Ubuntu and start planning to migrate to another Linux OS

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It was just a simple system update which dropped off audio on my Ubuntu 12.04. It was really strange to admit that I had experienced a crash (better: an audio crash) on a Linux but the 12.04 Ubuntu actually caused similar problems to a numerous bunch of long-term aficionados around the world.

The real problem with the last Ubuntu versions is that this OS is not supporting properly “old” hardware as it did previously during so many years. Reading some other bug reports on the web I discovered that these audio troubleshooting crashes happen principally to “old” IBM ThinkPad and Dell. I hope Ubuntu developers will consider to solve immediately these kind of issues or many users certainly migrate to other Linux version.

In any case the best and complete guide to solve audio troubleshooting has been developed by Ubuntu itself. The guide is very detailed but, if you want to definitively solve this bug, you have to spend more or less 40 (forty…. sic!) minutes and follow all the 17 (seventeen… sic!) steps.

In my case the audio was back after the first step and I decided not to follow the other instructions but the audio troubleshooting comes back, more or less, every two months. Just to you if you want to spend 40 minutes only one time or a couple of minutes every two/three months.

When I consider all the problems I had with Ubuntu on “old” hardware starting from the 12.04 version, my advice is to start thinking about a migration to another Linux OS. I am testing some Ubuntu alternatives and in the next weeks I will post something about the tests I’m doing on old laptops. Stay connected!

Linux Day 2012

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Today we post a particular Linux informative video to celebrate the 2012 edition of the Linux Day: a special event dedicate to promote the Linux culture in Italy. The Linux Day 2012, organized under the supervision of the Italian Linux Society, will be carried on today (October, 27) thanks to the active support and the logistic framework offered by the Italian User Groups in more than 100 Italian cities and villages. Akhela (http://www.akhela.com/it) and SUSE Italia (https://www.suse.com/it-it/) are the proud sponsors of this event.

Source: youtube.com via Galigio on Pinterest

How to install Ubuntu 12.04 on old computers with non PAE CPU

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When I tried to install Ubuntu 12.04 on an old ThinkPad X40 I was surprised to discover this warning on my screen:

This kernel requires the following features not present on the CPU:
pae. Unable to boot - please use a kernel appropriate for your CPU.

In few words I wasn’t able to install Ubuntu 12.04 because the kernel on Ubuntu 12.04 was not supporting my CPU and I was really upset because I have always promoted Linux distributions as the most versatile and appropriate OS to keep using “old” hardware.

Sincerely, as described in an older post, I previously decided to install MATE desktop environment because the graphic cards on many laptops didn’t support Unity and Gnome 3 but this was the first time I had to renounce the installation of Ubuntu. I didn’t want to surrender to this difficulty (that appeared to me as a bug)!

First of all, I discovered that pae is “a feature to allow 32-bit x86 processors to access a physical address space (including random access memory and memory mapped devices) larger than 4 gigabytes“. After I clarified this point, I was not sure that my processor was totally inadequate to support Ubuntu 12.04.

After some web surfing I discovery that there are two easy solutions to avoid this problem.

1 – As first solution you can install Lubuntu (my choice) or Xubuntu on your computer then you can install the ubuntu-desktop using the Package Manager.

2 – If you prefer not to use the Package Manager you can install Ubuntu 11.04 or 11.10 and then upgrade Ubuntu to 12.04.

More in general, it is also possible to assume that if you have a non PAE CPU, your hardware could not be able to support the Unity desktop. For this reason you can keep your Lubuntu – Xubuntu (based on the light but effective LXDE desktop) or switch your desktop environment to Gnome (the Classic, of course) installing the gnome package instead of ubuntu-desktop.

In any case, if you want to know if your CPU supports pae you have to open a Terminal and type:

grep --color=always -i PAE /proc/cpuinfo

If something like “flags: fpu vme de pse tsc msr pae mce cx8…” outputs on your Terminal, you have a pae CPU otherwise your CPU doesn’t support pae.

The good third choice: MATE desktop environment. The traditional but rock solid solution for the Unity unhappy users (when also Gnome fails)…

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My first Linux OS was a Knoppix but I had so many problems with the hardware drivers, the LAN configuration and the monitor settings that I was really discouraged. After many tests I decided that Ubuntu was the right OS for my notebooks and I continued to use it without any particularly matters till Unity.

Unity is nice to see, intuitive but if you use your OS in a stressful way (I mean doing three or four different tasks all together: reading emails, talking with Skype and writing on LibreOffice), you spend too much time looking for the icon you need to launch the right program. The vertical monitor space has not enough room to visually show all the icons related to programs I use everyday. Surely this is my personal matter but I actually prefer the “old” graphic interface. For this reason I decided to install Gnome 3 but my vetust IBM Thinkpad crashed a couple of time in a week.

To my surprise also the Gnome Classic option encountered some crashes due to the amount and diversity of the software I installed on my laptop during the last years.

As usual, after some web searches I found a solution: MATE. This particular desktop environment is a fork of Gnome 2 and it really looks very intuitive and easy to use. If some software conflicts with the MATE environment, a pop-up message will appear on your sceeen and, if you have the patience to read the Details contained in it, you will able to solve your problems. In my particular case (don’t ask me why) it helped me to focus my attention on Conduit which caused the crashes on Gnome.

To easily install MATE, on almost every Linux distribution, you can read its wiki dedicated page or directly follow the below instruction if you use Ubuntu 12.04.

– open Terminal and type these command lines:

sudo add-apt-repository "deb http://repo.mate-desktop.org/ubuntu oneiric main"

sudo apt-get update

sudo apt-getinstall mate-archive-keyring

sudo apt-get update

sudo apt-get install mate-core

sudo apt-get install mate-desktop-environment

When the Terminal finishes all the upgrade stuff, reboot your Ubuntu 12.04 and select MATE on the login screen (click on the upper right “gear” and choose MATE).

That’s all! Have a good week!

YouTube changed its website parameters and DownloadHelper immediately released an updated, on the fly, version

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Sunday night the (on the fly) updated version of DownloadHelper was released. After just few days of malfunctioning all the features offered by this add-on for Firefox are back again.

In particular it is possible to download again all the videos to have a local copy to watch when we are not able to use the internet.

The team of DdownloadHelper was professional and fast to solve this annoying problem which was caused by changes operated by YouTube on its website. For all the people who has not already used this add-on before, I remind you that DownloadHelper is, in my opinion, the most advanced tool to navigate YouTube videos, download contents for evaluation and directly convert the format from flv to mp4 or other video format you prefer.

For the record, this problem caused the same malfunctioning to all the software with similar features. In particular, you could have problems when using Gmediafinder for Linux (at least we have had this kind of matter during the past weekend).

How to install and manage Screenlets on Ubuntu

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Screenlets are small applications to represent things such as sticky notes, clocks, calendars around on your Ubuntu desktop. You can launch a pre-installed screenlet from Screenlet Manager, or install a new one into the Manager for launching it. Here are the steps for installing and launching a screenlet, for example, WaterMark System Information.
– Install Screenlets Manager if it has not been added.
– Go to Applications (or Main Menu) > Ubuntu Software Center.
– Enter screenlets in the Search Box.
– Select Screenlets, click the “Install” button.
– Download the screenlet e.g. “WaterMark System Information” to a folder.
– Go to Applications (or Main Menu) > Accessories > Screenlets.
– Click Install, select Install Screenlet and click OK.
– Browse to the folder, select the file downloaded and click “Open” to install the screenlet into the Screenlets Manager.
– Select the screenlet “WaterMark” and click “Launch/Add”. (Tips: you can add more than one WaterMark screenlet and set it to display other system information.)
More screenlets are available for installation from screenlets.org.