online Ubuntu CLI in cloud for free

Hey lads,

Just found out that Kubernetes is great!
 You should definitely try the online tutorial.. ;)

video - Porovnani Ceska vs Ukrajiny (ukrajinkou)

Slecna "Milky-Cat" prijela studovat z Ukrajiny a zustala zde ctyri roky.

Porovnava zakladni veci - dopravu, jidlo, bydleni a take co me zaujalo - bezpecnost.
Vzhledem k tomu jak se ji zde libi -- urcite oceni zelen... Tedaaa, vlastnee.. zenicha jsem chtel rici...  

EN: This girl w/nickname "Milky-Cat" came to study in Czech and stays here for 4yrs. 
Comparing basic needs - transport, food, living a what interested me - safety.
She likes ЧЕХИA a lot - maybe she will even get married here ;)

Convert VirtualBox .ova into .vhd for Hyper-V

There is an original utility VBoxManage.exe in VirtualBox directory - and it can do exactly the needed.

Commands are following:
press Win + R
write    "   cmd   "  and press Enter

 cd C:\Users\Administrator\VirtualBox VMs\

VBoxManage.exe clonehd --format vhd "C:\Users\Administrator\VirtualBox VMs\kali\kali-disk001.vmdk" "C:\Users\Administrator\VirtualBox VMs\kali\kali.vhd"


0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Clone medium created in format 'vhd'. UUID: ae53be6e-e7db-4998-b3a1-467d4af5f101

C:\Program Files\Oracle\VirtualBox>

Kali Linux / Parrot Security OS (updated Mar, 2018)

If you are getting the following error:

Invalid signature for Kali Linux repositories : “The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository”

 There are 2 possibilities:

gpg --keyserver hkp://keys.gnupg.net --recv-key 7D8D0BF6

gpg --fingerprint 7D8D0BF6

gpg -a --export 7D8D0BF6 | apt-key add - 

apt update  

update :  03 Mar , 2018.
Answer from the official documentation :

Note that if you haven’t updated your Kali installation in some time (tsk2), you will like receive a GPG error about the repository key being expired (ED444FF07D8D0BF6). Fortunately, this issue is quickly resolved by running the following as root:

wget -q -O - https://archive.kali.org/archive-key.asc | apt-key add

KALI Linux on Windows APP!

Win Shell: 

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

apt-get update  
apt-get dist-upgrade

apt-get update
apt-get install metasploit-framework