Install VirtualBox 6.1 on Ubuntu 18.04

VirtualBox 6.1 on Ubuntu

First you need to add VirtualBox repository

Add Keys

Do an apt upgrade

If you have older version of VirtualBox installed, remove it

Install VirtualBox 6.1 with

If you use Vagrant, you may need to install latest version as the vagrant provided by ubuntu won’t work with VirtualBox 6.1 […]

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Ubuntu Screen Recorder

Ubuntu come with screen recorder, this can be activated with shortcut

By default, it will record for 30 seconds. Video get saved in your home directory (/home/USERNAME) in webm format. If you want to increase time, you can run following command

It is better to set this to 0, this way record never […]

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Uninstall Time Doctor on Ubuntu

Time Doctor is an application to track time. To uninstall Time Doctor on Ubuntu, run

Time doctor run following process


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Ubuntu 18.04 MariaDB 10.2 Too many open files


On my computer running Ubuntu 18.04, MriaDB stopped working. PHP application i run on my computer failed with error

Application can’t find the table. So i tried to login to MySQL and see if table is there or not. But i get error

Next i checked if this is due to any MySQL […]

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Disable Native Notification on Google Chrome Ubuntu

On Ubuntu, Google chrome had a disable native notification option. On Chrome 78, this option is removed. But you still can manually enable it. To enbale chrome notification, edit file


Replace with

Save and exit the file. Now restart google chrome. Related Posts Google Chrome […]

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Install NextCloud Desktop client on Ubuntu

NextCloud ubuntu client

To install NextCloud desktop client on Ubuntu, add PPA

Now run

After install, start nextcloud client, you will be able to login with nextcloud server URL, user and password. […]

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Linux KVM Bridge network on Ubuntu

On Ubuntu 18.04 server, first i get Ubuntu to use /etc/network/interface, by default Ubuntu 18.04 and newer use netplan. First install ifdown

Install bridge utils and resolvconf.

Now you can configure your network interface by editing file

Here is my network configuration on an OVH server.

To convert this interface to […]

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Install Xfce VNC remote desktop on Ubuntu

XFCE is a light weight desktop for Linux. XFCE + vnc allow you to setup remote desktop on a VPS or dedicated server located on a data center or cloud. You can connect to remote desktop using VNC client and work like it is local computer. To instal XFCE run

Next install vncserver


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