How to make Freemind and Checkvist work together?
Checkvist is a nice, web-based ouline editor. Since it uses a hierarchical content structure, and a mindmapping software like Freemind does the same, interfacing between them can work well in theory....
View ArticleHow to fix Skype audio problems in Ubuntu 13.10 on a ThinkPad T61?
Symptoms This issue started to occur right after installing Ubuntu 13.10 on a ThinkPad T61 with an "Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)" according to lspci. So, whenever...
View ArticleHow to install AWS CLI in Ubuntu 13.10 using packages?
AWS CLI is the Amazon Web Services command line interface tool, the new unified utility to manage your cloudy Amazon things. People are usually told to install it with pip install awscli (including in...
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How to install the NEOS server 4.0?
These are the instructions for installing a generic NEOS server, which you can use for many purposes. WARNING: These instructions guide you through a successul installation of NEOS itself, but stop...
View ArticleHow to install COIN-OR Optimization Services (OS)?
For our Economy App software (an innovative, moneyless marketplace), we need a fast, dedicated server to solve optimization problems. So let's install COIN-OR CBC (the MLP optimization solver we use)...
View ArticleHow to redirect traffic from a server to another?
Forwarding web traffic This can come in very helpful when switching servers and wanting to avoid any downtime while the updated DNS entries propagate over 48 hours through the Internet. This is esp....
View ArticleHow to create @mentions with auto-suggest and notifications in Drupal 7?
Usually, you can have mentions with e-mail notifications using the Drupal mentions module, or mentions with auto-suggest using the Drupal ckeditor_mentions module, but not both. But it turns out you...
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What is a set of recommendable basic Android applications?
This is my list of Android applications that I recommend everyone to have and install on own phones and phones prepared for clients. Of course everybody will need more apps for specialized purposes,...
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How to set up a clean web hosting directory layout in Plesk 11.5?
If you are using Plesk as a server control panel and took part in all updates starting with some Plesk 10 version, you will notice that your recent version (Plesk 11.5 currently) has a total mess with...
View ArticleHow to keep your data on a small removable SSD with USB interface?
The idea explored here is to separate your data physically from the computer that you are using them on. This has the following advantages: (1) you are quite safe from theft because you can keep...
View ArticleHow to fix when the mouse stops clicking in Lubuntu?
The mouse stopped clicking at times – it seemed to happen at arbitrary moments. The pointer would still move, but it was no longer possible to click in any way (on my ThinkPad X201 Tablet meaning:...
View ArticleHow to count words in XML and HTML files?
For HTML files, you can use the command-line tool html2text (even with several files at once), together with wc: html2text *.html | wc --words For XML files, you can use the command-line tool xml_grep...
View ArticleHow to create a panorama from video under Linux?
Option 1: Autopano Pro Autopano Pro is a great sophisticsted panorama software that comes with a Linux version (.deb package even!). It is commercial software for about 100 USD, but has a demo version...
View ArticleHow to use a webcam as a high-resolution scanner?
All software that I found (esp. the many Android apps developed for this purpose) use the webcam by taking a single picture and improving it digitally to be a "scan". This however leads to low...
View ArticleHow to repair an Android phone where only the bootloader works?
Yesterday, I nearly bricked my phone (HTC Desire HD), but got it back up and running again. Here is how – it is a relatively simple technique but I did not find it on the web, so I thought I'd share...
View ArticleHow to fix excessive numbers of FTP connections in in TIME_WAIT state?
When you use FTP for recursive downloads or uploads and the FTP server has a firewall installed, you might get blocked due to "too many connections". Nearly all of those connections would be in...
View ArticleWhat powerline adapter to use that can be fully managed under Linux?
Powerline is a technology for transmitting data over the AC grid. All devices provide an RJ45 Ethernet plug (and some also wifi and USB), so they support client devices of all operating systems. Basic...
View ArticleHow to create group-specific default panels in Drupal 7?
Working solution Finding this solution was quite a nightmare. But, here it is. This assumes you have a working setup of Panels in Drupal 7 already. Use a group path prefix. Set up pathauto to include...
View ArticleHow to fix “Unable to allocate shared memory segment of 67108864 bytes”...
One of my websites was constantly throwing "Internal Server Error" errors, and that error appeared as follows in /var/log/apache2/error.log: Thu Oct 16 17:59:14 2014 (19446): Fatal Error Unable to...
View ArticleHow to install OSMAnd~ maps via download to a computer?
Downloading your OSMAnd~ maps to a computer and installing them to your Android phone from there has several advantages: Use cheaper or faster network access. In a case where, for example, there is no...
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