"Think outside the [B0X]"
Welcome to my little corner on the internet where you can find some information about me and my personal notes regarding my work. It contains some useful tips, stupidy I came across and ofcourse bad documented annoyances, yes life of a developer is filled with surprises ;).
Feel free to browse around and enjoy your staying.

Permission denied (publickey) with ssh/git

When git or ssh is complaining:
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sample table for postgresql

Postgresql way to add incremental id:
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installing postgresql on ubuntu

Steps for installing postgresql server and make it accessible from remote clients.
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ssh shortcuts ‘bookmark’

How to create a bookmark/shortcut file for ssh.
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Let’s encrypt with vps

How to install “Let’s encrypt” ssl on vps.
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Install tight vnc server

1a. Install desktop environment and vnc server

sudo apt install xfce4 xfce4-goodies tightvncserver

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Launch shell ui with root

Edit the application.desktop file. Change this line from:

Exec=/opt/atom/atom %F


Exec=gksudo -k -u root /opt/atom/atom %F

Desktop files are usually located in:


“Quick” compare directory contents

1. Create md5 hash for all files and both directories:

md5deep -r -l aDirectory/* > md5.txt

or for older versions:

hashdeep -c md5 -r -l aDirectory/* > md5.txt

Output between the two are different!

2. Sort both  files:

sort md5.txt > md5_sorted.txt

3. Compare both files:

diff md5_sorted1.txt md5_sorted2.txt


Virtualbox connection error

When rdp fails to connect to virtualbox, after installing the extension pack.

Check in virtualbox preference -> extensions
Most likely 2 packs are installed:

  • VNC
  • Oracle VM VirtualBox Extension Pack

run command below to set the correct extension pack for rdp:

VBoxManage setproperty vrdeextpack "Oracle VM VirtualBox Extension Pack"

Fix eclipse (kepler) ui in linux (mint)

Eclipse looks horrible in Linux.
Apply steps below to make it more appealing … Read the rest of this entry »


September 2022
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