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Seravo blog: Linux and open source – technology and strategy

Seravo salad spring 2014 schedule

Seravo salad is a monthly event where we discuss relevant subjects related to open source and the Internet, while the attendees enjoy a healthy salad lunch. The event is organized in cooperation with Hub Tampere. This tradition started during the autum of 2013 and the presentations so far have been about our customer cases, social […]

Easy HTML5 quality assurance tools

There are plenty of free tools available for HTML5 quality validation and testing that can and should be used by anybody who produces or buys software products. Unlike traditional native binary-only apps, with HTML5 apps the user has the ability to access the source code due the technical structure of how HTML5 apps are composed. […]

The Jolla phone – first impressions

The first device running SailfishOS, the successor of Meego, has finally been released. It’s elegant and beautiful both on the outside and inside. It has multiple unique features that makes it unlike any mobile device we’ve seen so far. We have been waiting for Jolla to release their phone for more than a year and […]

FANC: Ecological and economical IT

IT isn’t typically considered to be very environmentally friendly or cheap but The Finnish Association for Nature Conservation’s (FANC’s) strategy to use open source software has helped them achieve both. The issue of environmentally friendly IT is actively discussed at the The Finnish Association for Nature Conservation (Suomen Luonnonsuojeluliitto). There are a number of web […]

SUSE event in Tampere 2013-11-20

What do you need for a secure and well managed Linux environment? SUSE and Seravo presents SUSE Finland and Seravo Oy will have a joint SUSE event in Tampere on Wednesday 2013-11-20 starting at 13:00. The event is in Finnish and more details can be found in the COSS.fi calendar, which is the primary listing […]

Past, present and future of VALO-CD

The VALO-CD is a project with the mission of making it as easy as possible for any average home of office user to start using Free and Open Source Software. Traditionally open source software has been a thing only known by computer enthusiasts while the average Joe has only known about (closed source) software from big […]

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Dual-booting Ubuntu 12.04 and Windows 8 with Restricted Boot

In parallel with the introduction of Windows 8, Microsoft also introduced new hardware requirements to all manufacturers who sell pre-installed Windows 8 computers. As Microsoft Windows still has a monopoly in the desktop and laptop computer market, lots of people who buy computers suffer from a new anti-feature Microsoft introduced: Secure Boot. All Windows 8 […]

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Tips to optimize images for faster loading websites

For a multitude of reasons ranging from user conversion rate to search engine ranking, it is important for web sites to load fast. The first rule of thumb to having fast loading pages is to keep the amount of data the users need to transfer small. The smaller the web page file and its dependencies […]

JavaScript, the winning style

Update July 15th 2013: Due to commenters demand, we have re-published this research as a Git repository anybody can contribute to: github.com/Seravo/js-winning-style. This article has become our most popular article with over 10 000 unique readers, so this issue is clearly something the JavaScript community should get done. Update August 16th 2013: A translation in […]

6 reasons to learn JavaScript

Presentation held at Happy Hacking Day 2013 at Haaga-Helia in Helsinki, Finland. In a nutshell, the six reasons to learn JavaScript are that it is: easy: JS is a high-level language where things like type setting and compiling is done automatically, so it suits even people with no previous programming experience. versatile: JS is multi-paradigm […]

Dell XPS 13 Ubuntu Edition – first impressions

Update October 2013: We bought a new Dell XPS 13 in October with Ubuntu pre-installed but unfortunately it seems to have problems with the wireless: wifi connections seem to disconnect at random and thus wifi is useless. We found out that the in the new laptop shipped to us this fall the Intel wifi card […]

Seven reasons why tablets are the future

1. Touch is intuitive It’s easy to learn to use a mouse. But touching you don’t need to learn at all. It is so intuitive that even an 1-year old child can interact with touch devices in meaningful ways. And if an 1-year old can use touch devices, so can you mother and grandmother too. […]

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Improve MySQL performance to speed up websites

In every business the rule is that if your service is slow, you’ll loose customers, and it certainly applies online too. If your website takes two seconds to load instead of a half second, you’ll loose visitors and business. Even if it is just about improving by a few seconds, on the web it does […]

Optimizing web server performance with Nginx and PHP

Who would not want to have a fast service? No matter how good your web service is, if it takes 5 seconds to load a page, people will dislike using it. Even search engines dislike slow servers and decrease their ranking. Faster is always better. In our article a few months ago we asked what […]

Localization, internationalization and the Finnish language

Open source might make you think about geeks who mostly talk to computers with programming languages. Actually human language skills are just as important. Translators are needed in every international open source project. Localization becomes a necessary task in almost every open source project in Finland. We have been translating software interfaces into Finnish in […]

Free Your Android phone (and upgrade to the latest Android version)!

Most Android phone manufacturers provide operating system upgrades, so you can run the latest version of Android even with an older smart phone. With closed software phones like iPhone this is not possible, since Apple wants to force its customers into always buying a new phone. However not all Android phone manufacturers provide upgrades, or […]

Free manuals for open source software

FLOSS Manuals is here to help people use the open source software programs. There is a clear lack of useful end user manuals for open source software. Open source software has to be combined with open source manuals created in the same spirit of collaboration. And the content should not be locked down but forever […]

Installing Android-x86 4.0 on the ExoPC (WeTab)

The official Android project only releases versions for the ARM platform, but there is an unofficial porting project for the Intel x86 platform called Android-x86. Using this version you can in theory install Android on any home computer lying around. In practice however you need to consider what kind of components your device has and […]

Git training with Devaamo

On November 28th Otto Kekäläinen of Seravo ran a Git training session on request by the Tampere-based developer community Devaamo ry. Git is great revision management system authored by Linus Torvalds, and in last two years its popularity has exploded because it is so great, but certainly not because it would be easy to use, so there […]

The WOW effect

The mobile devices scene is very interesting to follow at the moment. All competitors have a huge urge to overtake the market, since we know that in a few years billions of people on this planet will buy a mobile device, and whoever gets the biggest market share now, is likely to make huge profits […]

Nordic Free Software Award 2012 to Seravo staff

Seravo staff member Otto Kekäläinen was given the Nordic Free Software Award 2012 at FSCONS held in Göteborg on the 9th to 11th of November. The award was shared by two people. The other recipient was Ole Tange, who is the director of IT-Politisk Forening, a non-governmental organisation that has succeeded in bringing Free Software to the public sector in […]

The fastest web server in the world?

Speed matters. Over and over research shows that when the speed of a website increases, the activity of users increase. Even if the changes are small, like a half second, and users are perhaps not conscious about it, users will view the overall experience as better. Besides website popularity, high-speed websites are also capable of handling more […]

Virtualized bridged networking with MacVTap

Introduction A virtual machine typically needs to be connected to a network to be useful. Because a virtual machine runs as an application inside the host computer, connecting it to the outside world needs support from the host operating system. There are a number of options for networking a virtual machine, both on the Link […]

How to try out IPv6 on your home computer

IPv6 is slowly, but steadily making itself present on the Internet today. Major web sites like Google, Yahoo, YouTube and Facebook are now serving their content off IPv6-enabled servers. You can expect IPv6 adoptation to pick up speed as the IPv4 address shortage becomes increasingly acute in the years ahead. What is IPv6? Internet Protocol […]

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Trying out Meego offspring Mer and Nemo on ExoPC (WeTab)

Even though Steven Elop, Intel and the Linux Foundation killed the Meego project, the code base is not dead. In October 2011 the Mer Project was forked out of Meego and quickly attracted the development community that had grown distrust in the original Meego project, for very obivious and good reasons, of course. In the […]

SUSE Roadshow 2012, November 1st at Tampere

The SUSE Roadshow will visit six locations in Finland. Seravo Oy will be co-hosting the event at Tampere, where it will be held at Bravo Plaza, which is located just next to our office at the Finlayson area. Lately SUSE has released several new products (all of course based on open source software) and there will […]

The Library Directory

The Library Directory (hakemisto.kirjastot.fi) is to our knowledge the first completely open public sector IT project in Finland. Not only is the whole source code is available at GitHub, but also the revision history has been public since day one and the project is open for collaboration. Anybody who finds a flaw can file a bug. Heck, […]

Maintenance relation in Finland – an open data visualization

To honor the OKFestival currently held in Helsinki, Finland, we’ll publish this week a few articles on open data work we’ve done. You might also bump into some of us at the festival! During the fifth HS Open event Seravo participated in creating an open data visualization (in Finnish) on the maintenance relation in Finland, meaning […]

The populist party – an open data visualization

To honor the OKFestival currently held in Helsinki, Finland, we’ll publish this week a few articles on open data work we’ve done. You might also bump into some of us at the festival! By using selection path analysis, we demonstrate that it is possible to create a political campaign with maximum voter popularity. Media corporations […]

Avoid failure of e-service development by using open source

In May 2012 I (Otto Kekäläinen) attended an internal event by the Ministry of Employment and Economy that was intended for officials working within the branch. There where two outsider speakers, and the second was Pasi Mäkinen of Microsoft Finland. Avoimen lähdekoodin ratkaisut palvelujen kehittämisessä (2012-05-29) from Otto Kekäläinen In my presentation (in Finnish, available […]