Install FTP Server on CentOS 7

https://phoenixnap.com/kb/how-to-setup-ftp-server-install-vsftpd-centos-7

Setup OpenSSH Server on Ubuntu

https://www.cyberciti.biz/faq/ubuntu-linux-install-openssh-server/

1. Open the terminal application for Ubuntu desktop.
2. For remote Ubuntu server you must use BMC or KVM or IPMI tool to get console access
3. Type sudo apt-get install openssh-server
4. Enable the ssh service by typing sudo systemctl enable ssh
5. Start the ssh service by typing sudo systemctl start ssh
6. Test it by login into the system using ssh user@server-name

share file on virtualbox

cd /media/amine/VBOXADDITIONS_5.1.26_117224/ ./autorun.sh sudo ./autorun.sh reboot cd /home cd amine/ mkdir share sudo mount -t vboxsf share /home/amine/share/

Make sure the file/folder is shared on VBox client. the shared name is "share"

to check which user you are logged into

whois

follow this guide to view other users

https://www.linuxquestions.org/linux/answers/Networking/How_to_list_all_your_USERs

How to view open ports on that machine

pi@raspberrypi:~ $ sudo netstat -tulpn | grep nx
tcp        0      0 127.0.0.1:7001          0.0.0.0:*               LISTEN      1021/nxnode.bin    
tcp        0      0 0.0.0.0:4000            0.0.0.0:*               LISTEN      1001/nxd          
tcp        0      0 127.0.0.1:12001         0.0.0.0:*               LISTEN      1021/nxnode.bin    
tcp        0      0 127.0.0.1:25001         0.0.0.0:*               LISTEN      1070/nxclient.bin  
tcp        0      0 127.0.0.1:21774         0.0.0.0:*               LISTEN      445/nxserver.bin  
tcp6       0      0 ::1:7001                :::*                    LISTEN      1021/nxnode.bin    
tcp6       0      0 :::4000                 :::*                    LISTEN      1001/nxd          
udp     7872      0 192.168.0.123:5353      0.0.0.0:*                           445/nxserver.bin  
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           445/nxserver.bin  

Installing Fusion Kodi

Fusion Kodi is an addon to Kodi which installs multiple other addons.

https://www.tvaddons.ag/fusion-installer-kodi/

Step 1: Navigate to the “File manager” tab under the “SYSTEM” menu.

Step 2: Click on the “Add source” option.

Step 3: Select the top text input box marked “” under the “Enter the paths of browse for the media locations” field.

Step 4: Using the on-screen keyboard, type in “http://fusion.tvaddons.ag” without quotations, and then press the “Done” button. In case you’re having trouble, press the “Symbols” button to insert the colon and forward slashes.

Step 5: Select the bottom text input box under the “Enter a name for the media Source” field.

Step 6: Using the on-screen keyboard, type in “fusion” without quotations, and then press the “Done” button.

Step 7: Press the “OK” button at the bottom of the window.

Step 8: You’ll now notice that “fusion” is listed within the “File manager” window.

Step 9: Return to the main menu, then Navigate to the “Settings” tab under the “SYSTEM” menu.

Step 10: Select the “Add-ons” option from the left side menu bar.

Step 11: Press the “Ok” button when prompted with the “First run help…” dialogue.

Step 10: Select the “Install from zip file” option.

Step 11: Select the “fusion” folder from the listing.

Step 12: You’ll now be able to open whichever folder from which you wish to install add-ons for Kodi. Choose begin-here > plugin.video.hubwizard.x.x.x.zip

Step 13: Go back to the main menu, choose PROGRAMS > Program add-ons . Choose the OS which you are installing from. The whole process should take several minutes.

Good luck

How to setup apache server in Ubuntu

https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-16-04