Tutorials Index Page 3
In this tutorial, we are going to use python and elastic search. We are going to cover from scratch how to use elastic search using python. The tutorial could be read by python and elastic search beginners.
In this tutorial, we are going to install all bitcoin electrum dependencies from source code and make it work with PyQT5. we provide a step by step tutorial to install bitcoin electrum.
In this brief tutorial we are going to explain how to build dropbox from the source code in Debian Stretch
In this tutorial, we are going to create a script to create many users on ldap. The input of the script will be a csv file with a list of users. You can later modify the script for your needs, like adding click library to create individual users.
In this tutorial, we are going to configure the UniFi USG VPN (L2TP) for remote access using a VPN. The whole tutorial is 3 steps and a fourth optional for VPN client configuration. The first step is enabling the radius server, the second the user creation and the third one is where you create the VPN network using L2TP type. No advance knowledge is required to follow this steps.
The scheduler tries to use a small number of kernel threads to support high concurrency. It will leverage parallelism to scale to many cores. In this tutorial, we explain with some details how the go scheduler works to distribute goroutines over kernel threads.
In this tutorial, we explain how to change the encoding of a database in PostgreSQL. Use sudo -u postgres psql -C “SHOW SERVER_ENCODING” your_database to display the database encoding. You can create a new database with utf8 using the command: sudo -u postgres createdb -E utf8 your_database. If you already have a database with SQL_ASCII and you want to convert it to utf8 you will need to regenerate it, check here for the full guide.
With go you don’t have threads, you have goroutines which are very cheap in terms of stack and scheduling. Go has a scheduler which works like an event loop, but it allows the developer to forget about events, queues, saving state, etc. Check our tutorial to learn to go networking programming.
In this tutorial we are going to upgrade PostgreSQL 9.X to 10. The following steps will work for Ubuntu 14.04, 17.04 and 16.04. Check our guide for easy upgrade with some troubleshooting also.
In this short tutorial we show an example on how to return a json when using flask.abort: abort(jsonify(message="Message goes here"), 400). See alse an alternative using flask handlers to return a json.