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How to fix bluetooth speakers on ubuntu

In this tutorial, we try many ways to fix problems with bluetooth speaks on Ubuntu Linux. Most of the issues are solved on the file /etc/bluetooth/main.conf changing #AutoEnable=false to AutoEnable=true. Check here for more alternatives.

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Solved: Failed - Module 'DevicePowerOn' power on failed

Check here the solution of the error "Failed - Module 'DevicePowerOn' power on failed." when the virtual machine was started.

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Bitcoin electrum wallet install from source code

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.

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Using the host command to perform DNS queries

The command **host** is a DNS lookup utility that can be used to make DNS queries. Check this tutorial to learn how to use the host command. We are going to explain how to use it here.

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Linux and AMD RX card: No AMD OPENCL or NVIDIA CUDA GPUs found, exit

Check here the solution for the error "No AMD OPENCL or NVIDIA CUDA GPUs found, exit". Try to reinstall amd drivers with the command: "amdgpu-pro-install --opencl=legacy,pal --headless"

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How to Autostart LXC Container at boot

To Start the LXC at boot use the option lxc.start.auto = 1 on you container config file located at /var/lib/lxc/CONTAINER_NAME/config

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Test SSL / TLS with GnuTLS from the Command Line

In this tutorial we are going to use gnutls-cli from the command line to test SSL/TLS connection. This command could be useful to test a web or an imap server. Install it with: sudo apt -y install gnutls-bin. Example of usage: gnutls-cli -d 5 imap.gmail.com -p 993

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How to change MySQL root Password

In this tutorial we explain how to reset the password of root user in MySQL. We explain how to change it using mysqladmin and using queries. We also explain how to change root password when you forgot the previous password using mysql_safe command with --skip-grant-tables

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How to install source code from tarball files on linux?

Usually you should use your package manager to install software in Linux, but sometimes you need to install software from source code. The most common steps are to execute: ./configure;make;make install. Check here for full details

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gpg: signing failed: Inappropriate ioctl for device

If you got the error "Inappropriate ioctl for device", try to execute export GPG_TTY=$(tty). See here for more details on the solution