CarlesReig.com
computing and other things
Error accessing database OpenbravoPOS in Ubuntu
July 16th
It seems that new versions of OpenbravoPOS not just like Ubuntu. I could see that if we try to start the program an error saying the driver could not find the database, regardless of whether I wanted to use MySQL or Derby.
The error that appears is the following:
Database Manager message
DNG_00_0000
Danger: Can not connect to database. Database driver not found.
com.openbravo.basic.BasicException:
Can not connect to database. Database driver not found.java.lang.ClassNotFoundException:
com.mysql.jdbc.Driver
Where to find a job online?
June 14th
Throughout our working lives, and especially considering the current situation, one of the many tasks that we perform daily is looking for work, and one of the means or channels that might be faster is through Internet, although we will focus on specialized portals sector also leave a list of other pages where you can find information and other related tools.
Needless to say, we can not leave out other means in our research as visiting companies to deliver our curriculum in hand, the research offers the press, known ... Internet gives us the ability to access at a time many offers, but we can reject with equal ease.
Before starting the process to update our curriculum whenever necessary and create a personalized letter for each job. After we find what is our motivation, what we do, we like to work, what are our expectations and then asked us a question: have the training and / or experience required for the job that interests us ? From this moment we have only to decide what our area of activity; municipality, county or area of performance where we work.
The process for finding a job through the Internet can be summarized in these steps;
- Access the page with the job.
- Find offers that may interest you, there will be time to discard later.
- Register on our site, we ask for personal information, as well as introduce our resume.
- Inscriure'ns the job you want. At this point the company receives our interest in the job offer and start the selection process.
- Wait for an answer, it's usually through the website, but they can also contact us via email or phone, especially if it seems appropriate to our profile. It may take hours or days, so be patient. Most entries end at this time.
- If our bid is chosen company will contact us, we probably ask for more information or interview.
HP 3Com purchase
April 30th
HP once again demonstrates again that does not stop growing as a large corporation wants to do everything and have everything. Basically what it does is buy other companies with complementary products that give value to your brand and help to get into markets that had not fully exploited.
3Com has cost 7200 million dollars (USD), nothing to do with the 25,000 million that was paid by Compaq for some years now.
We're not talking about anything new in the world of software as we saw Google purchase anything that puts him ahead, but other companies like Adobe or Microsoft will not fall short.
Ubuntu 10.4, Lucid Lynx is already among us
April 30th
I strongly recommend using the download via the BitTorrent network , in contrast to the direct downloads faster as more people download it in 15-20 minutes you can have it. If you try a direct download servers you are probably saturated.
You have no excuse not to download the 700MB better invested in the season includes some new features as we discuss and simply encourage you to try it, is as easy as downloading the ISO, burn it to CD with any program that allows PC and start with the system including Ubuntu LiveCD. Then see if you like you can a facility shared with your Windows system with few problems. Even you have an available install Ubuntu from a Windows utility called Wubi .
Is there a version for each PC, 32bits, 64bits, for servers and even a version for netbooks (small laptops).
Already taking too long to try it!
Ubuntu 4.10 on 29 April 2010
April 8th
On April 29 we will have among us a new version of one of the most popular Linux distributions in recent times. Recall that we have new versions of Ubuntu every six months and this time is the codename of Lucid Lynx.
Some of the things that we consider in this version;
* It will be an LTS, long term support, ideal for work environments that require stable and official support for longer.
* Changing the colors of the default theme of gnome desktop, from brown to purple pass.
* Includes many applications for the user to enter their social networks and Web 2.0 services: facebook, twitter, flickr ...
* Start system faster.
* The most current versions of the gnome desktop, firefox, linux kernel,
* Sync with Ubuntu One file sync.
* Improved video drivers for nvidia cards.
Summarizing the versions and dates, April 8 (today) will be available beta2 on 22 April will have the Release Candidate (ideal for the impatient). If you can not expect the beta1 is now available .
Links:
Ubuntu.com
Download from official website
Lucid Lynx release shedule
Information and downloads of the beta1
Information and downloads of beta2
PDFsam, cut and combine PDF documents
February 1st
PDFsam is a free of charge which allows us to extract, cut or merge the contents of PDF documents in the most convenient and fast as possible. It is a tool that can be very useful for those who often work with documents in PDF format and must modify or remove portions of these.
The application is available for almost all systems and languages, so just need to have Java on your system.
Some functions that have to PDFsam:
- Extract specific pages from a PDF document.
- Cut a document into sections and create an individual file for each.
- Combine multiple PDF documents into one, we can add new pages in a document.
- Re-order pages in the document with a visual editor.
- Change the orientation of the pages in the PDF.
- To mix different page sizes such as A4, A5, A3 ...
- We can make some of the batch operations of several documents simultaneously.
In the tests we performed, the re-conversion to thirty pages of a document has not taken or half a minute, we divided each five pages and has created the files corresponding to each group of pages.
Official Site | PDFsam
The Windows Vista Upgrade to Windows 7 will expire on 31 January 2010
January 25th
If you buy a computer after 26 June 2009 is likely to have the opportunity to upgrade to Windows 7 "no cost". Not all computers purchased within the dates marked with the free upgrade option, the manufacturer may choose a different strategy. You will find information on the official upgrade to Windows 7 from Microsoft .
We read according to the official FAQ on the Microsoft Windows 7 ;
The period of eligibility of the program will be from 26 June 2009 to 31 January 2010. No obstante, in the case of purchases of nuevos equipos, it is possible that the computer manufacturer ofrezca period: one more glance of the program inside of this range of dates. Check with your computer manufacturer to Get to the dates and information on Ringtones redeem the discount.
That is, if you have a computer with Windows Vista installed and have not upgraded to Windows 7 give you fast, because on Sunday 31 January 2010 is the deadline to request the free upgrade .
As long as Microsoft does not give more time to update the term.
One netbook to the company?
January 25th
Define as anyone netbook laptop that is small in size, as might be less than 12 "(inches), not differentiate between netbooks and ultra-portable.
A computer of this kind is a perfect tool for business and people need to move constantly, entrepreneurs, freelancers and employees in general of many professional sectors.
If you want to buy a netbook must ask ourselves a series of questions that need to be made by use of the same:
- I really need a laptop? I go with a cell phone, blackberry or a PDA (PDA)?
- How many consecutive hours of work I can not connect the computer?
- Need Internet at any time? Where will I work has a connection? There will be wireless available? I need a mobile Internet access?
- I work with the tools and programs I need?
What gives us a kind of laptop? The advantages of a netbook:
- Attractive price, cheaper than a laptop size "normal" (around 300 €).
- Better mobility, less weight (maximum 1-2kg), takes up less space. Easy to carry.
- We have almost all the capabilities of any conventional computer, Internet, spreadsheets, PDF documents, system environment Windows (or Linux) and compatible with any program.
- The battery life lets you work part time (4h), and in some models almost reach the 8-10h.
Drawbacks of a netbook:
- Little power, some applications may not work or go too slow, applications such as design, CAD, 3D ...
- Limited functions, but today not a great inconvenience not to have CD-DVD having usb-stick and external hard drives.
- Small screen, you have to work many hours can tire the eye.
- Reduced keyboard, although this aspect has improved lately.
Some of the utilities and functions that can be found in most netbooks:
- We can use them for live performances of a product or service of our company through the screen, or even connecting to an external screen or video projector. Some models include a touch screen, are called Tablet PCs.
- Allows access to the Internet through any wireless network (wireless / wifi) that is available. We can also purchase a USB modem with a card of any mobile telecommunications company.
- We can synchronize contacts, calendar and media files with other devices via Bluetooth adapters.
I hope this article will be clearer what can and what you can do with a mini-laptop.
Utilities to remove antivirus programs
January 23rd
Neither have I gone mad, or is a typo. While it may seem like nonsense, sometimes we have to remove a virus from your system. It may be several reasons, such as a malfunction of the same, a change of antivirus, reinstalling programs, etc..
Usually just use the uninstaller found in the list of programs or through the control panel. But at other times we may find that it is very difficult to remove a virus, either the typical errors in uninstaller, installations of more than one antivirus program that blocks the other, a system malfunction operating or because they simply do not appear in the list of programs to remove it. In these cases, you should be aware of the existence of free utilities that serve to eliminate the virus from our system more or less permanently and safely, without modifying the system registry files or delete files manually.
In most cases are the same antivirus companies that offer these utilities, in order to support their users. One of the main advantages of these programs is that we can clean the whole system of record that the virus can reside in our system.
Just today I had to fight for a while because of a bad installation that I caused myself, ignoring the warning, so that knowledge, I had NOD32 meanwhile wanted to install it and still there was another resident virus in the system. After a couple of tests, re-installations of programs and restarted the computer I had no choice but to entrust myself to one of these utilities.
Of all the utilities that I used most were the Symantec Norton (by far) and Panda (in their disputes with printers, Internet access ...). Not for what strange reason, but it is quite common that some antivirus such as Norton, give problems when trying to remove them from the system and force us to use these utilities.
I leave you with a list of tools to remove the virus;
- How to remove Norton - Norton removal tools - Norton removal tool (direct link)
- Remove Panda Antivirus Pro 2009 - Utilities to remove Panda, PandaSecurityUtility and uninstaller_09 (direct links)
- McAfee Cleanup , to remove McAfee anti-virus utility.
- Removal tool for Kaspersky Lab products - Kaspersky Removal Tool "Klean" (direct link)
- How do I remove it manually from ESET security product? - Eset uninstaller (direct link)
- Avira Support Downloads - Avira AntiVir Registry Cleaner (direct link)
- Utility to uninstall Avast - aswclear (direct link)
- Uninstall AVG - cleanup utility (direct link)
NOTE: See the terms and aspects to consider for each tool, some need to run them under special conditions, such as in security mode (failsafe).
Some links and reference;
- How to Uninstall McAfee Security Center
- How to remove Panda antivirus
- How to solve problems that can occur in removing other antivirus (Panda)
- Uninstaller (removal tools) for common antivirus (Eset)
- AVG 9.x Uninstall / Re-Install Instructions
Something is funny enough that many companies offer a page where you refer to the tools to remove hidden programs in competition and so how can their products.
I hope this article do not have more problems to uninstall the antivirus rebels.
Create a shadow effect with Gimp Internal
January 22nd
This effect is very easy to create and believe that results obtained from a sufficiently attractive, the program will work with Gimp, remember that it is free and available for almost all systems (Windows, Linux and MacOS). Following this guide get a text that has a white shade above, as if bored.
Difficulty: Basic / easy. If you can click the right mouse button you can follow this tutorial.
Time Required: Less than 5 minutes. 4 minutes you'll be thinking about the font you want to use.
Creation process;
- Create the image with the desired size: File menu -> New (CTRL + N)
- Color black and white text.
- Add text to a size considerably if we see the effect better with a font that is sufficiently thick, or with bold style.
- Duplicate the layer with the text.
- Create a new transparent layer (using the image size) over the duplicate text.
- Right click on the transparent layer and select Merge Down.
- Select the text with the color selection tool, and cut the selected part.
- Right click and select menu -> invert (CTRL + I), fill the new selection with black (CTRL + O).
- Discard the selection, that is, remove all selections.
- Duplicate the layer with black text inverted.
- Select the original layer with the text upside down, right, filter -> blurring / Blur -> Gaussian
- Depending on the size of the text we can more or less value, the higher the gradient reaches farther.
- And we have our text with a perforated shade inside.
NOTE: Remember to save the file in *. Xcf to maintain layers and properties of each element separately. You can then save a copy in the format that you feel (jpg, png ...).
I created a video (screencast) with the entire process of creating this effect;
Screencast shadow effect with Gimp
You can see an example in the form of wallpaper (wallpaper) on my DeviantArt account .
