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Posts Tagged: open source

The perfect Btrfs setup for a server

Btrfs is probably the most modern filesystem of all widely used filesystems on Linux. In this article we explain how to use Btrfs as the only filesystem on a server machine, and how that enables some sweet capabilities, like very resilient RAID-1, flexible adding or replacing of disk drives, using snapshots for quick backups and […]

Using RAID with btrfs and recovering from broken disks

Btrfs (pronounced Better FS) is a relatively new filesystem that operates on the copy-on-write principle (abbreviated COW, which stems a more friendly pronunciation for btrfs: Butter FS). Btrfs includes a lot of interesting functionality and replaces traditional Linux disk and filesystem tools like LVM (volume manager, disk snapshots) and mdadm (software RAID). In RAID usage btrfs is much more flexible […]

Ubuntu Phone and Unity vs Jolla and SailfishOS

With billions of devices produced, Android is by far the most common Linux-based mobile operating system to date. Of the less known competitors, Ubuntu phone and Jolla are the most interesting. Both are relatively new and neither one has quite yet all the features Android provides, but they do have some areas of innovation where […]

Ubuntu Phone review by a non-geek

  Few weeks ago I found a pretty black box waiting on my desk at the office. There it was, the BQ Aquaris E4.5, Ubuntu edition. Now available for sale all over Europe, the world’s first Ubuntu phone had arrived to the eager hands of Seravo. (Working in an open office with a bunch of […]

Why and how to publish a plugin at WordPress.org

The first ever WordCamp was held in Finland on May 8th and 9th in Tampere. Many from our staff participated in the event and Seravo was also one of the sponsors. On Friday Otto Kekäläinen had a talk with the title “Contributing to WordPress.org – Why you (and your company) should publish plugins at WordPress.org”. […]

WordCamp Finland 2015 brings WordPress enthusiasts together

WordCamps are casual, locally-organized conferences covering everything related to WordPress, the free and open source personal publishing software that powers over 75 million sites on the web. In May of 2015, WordCamp will finally have its debut in Finland. The event is set to take place at the home base of Seravo in Tampere. WordCamps come in all different flavours, based on the […]

OpenFOAM – Open Computational Fluid Dynamics

OpenFOAM (Open source Field Operation And Manipulation) is a numerical CFD (Computational Fluid Dynamics) solver and a pre/postprocessing software suite. Special care has been taken to enable automatic parallelization of applications written using OpenFOAM high-level syntax. Parallelization can be further extended by using a clustering software such as OpenMPI that distributes simulation workload to multiple […]

How to create good OpenPGP keys

The OpenPGP standard and the most popular open source program that implements it, GnuPG, have been well tested and widely deployed over the last decades. At least for the time being they are considered to be cryptographically unbroken tools for encrypting and verifying messages and other data. Due to the lack of easy-to-use tools and […]

10 reasons to migrate to MariaDB (if still using MySQL)

The original MySQL was created by a Finnish/Swedish company, MySQL AB, founded by David Axmark, Allan Larsson and Michael “Monty” Widenius. The first version of MySQL appeared in 1995. It was initially created for personal usage but in a few years evolved into a enterprise grade database and it became the worlds most popular open […]

A guide to modern WordPress deployment (part 2)

Recently we published part one in this series on our brand new WordPress deployment platform in which we covered some of the server side technologies that constitute our next-gen WordPress platform. In part 2 we’ll be briefly covering the toolkit we put together to easily manage the Linux containers that hold individual installations of WordPress. […]

Turn any computer into a wireless access point with Hostapd

Do you want to make a computer function as a WLAN base station, so that other computers can use as it as their wifi access point? This can easily be done using the open source software Hostapd and compatible wifi hardware. This is a useful thing to do if computer acting as a firewall or […]

Host your private cloud easily using ownCloud

Would you like to have the easy of use of cloud storage and file syncing but without the trust issues or costs that come with using public cloud services? Do you like Dropbox but hesitate to use it? What you might be looking for is OwnCloud, the open source software you can run to host […]

Open source for office workers

Open source software is great and it’s not only great for developers who can code and use the source directly. Open source is a philosophy. Open source is for technology like what democracy is for society: it isn’t magically superior right away, but it enables a process which over time leads to best results – […]

Jolla and Sailfish Hack Day 2014-03-29

Due to popular demand we are organizing a second event! Would you like to learn how to write a Sailfish OS app and get it into the Jolla store? Or are you already working on a Sailfish app but need help with it? Join us on Jolla and Sailfish Hack Day to code and learn […]

Installing Node.js on SUSE Linux Enterprise

The officially supported collection of software in SUSE Linux Enterprise Linux 11 Service Pack 3 does not contain all conceivable Linux software, but in the Open Build System there are tons of software that is build for SLES 11SP3. Installing these software packages and repositories is of course on your own risk, as they are […]

Top 8 features and priorities for company websites in 2014

What makes a good website in 2014? Here are the top 8 most important priorities a business website must have to be successful and competitive today. 1. Responsive design The share of mobile devices is growing all the time so websites are required to work on devices of all sizes. Responsive design means that the […]

Jolla and Sailfish Hack Day 2014-02-22

Would you like to learn how to write a Sailfish OS app and get it into the Jolla store? Or are you already working on a Sailfish app but need help with it? Join the Jolla and Sailfish Hack Day to code and learn from other SailfishOS and QML enthusiasts. And if you already have […]

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 […]

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 […]

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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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 […]

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 […]

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 […]

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 […]