นัดดา

Once you invite your friends to join Dropbox, you can check the status of your referrals from the Referral Status tab of your account settings. There are four different referral statuses:

• Invited means that your friend has been invited to use Dropbox but hasn't registered or installed the desktop application yet.
• Joined means that they have registered but not yet installed the Dropbox desktop application.
• Completed means that your friend has successfully installed the Dropbox desktop application and both of you have been credited your bonus space (500MB).
• Ineligible means that the recipient is ineligible for the referral program. Either they have already registered an account with Dropbox or are attempting to register using the same computer as you.

Dropbox check ineligible by mac address only. You need to spoof (clone) MAC address. No need to change the IP address. This is possible and easy by running Ubuntu in VMwave. You don't need to install Ubuntu, just download the ubuntu-11.10-desktop-i386.iso and run it in VMware.

I won't tell you how to use VMware but I will teach how to spoof (clone) MAC address. In the Ubuntu boot screen, choose "Try Ubuntu".

Go to "System Settings".

Choose "Network".

You will see the default MAC address. Click "Configure".

- The first 2 HEX should be even number.
- If the new mac address is not activated, click the switch ON -> OFF -> ON.
- You have to change the MAC address before signup the new Dropbox account!
- You can change hostname by command "sudo hostname new_name" before signup the new Dropbox account!
- Do not install Dropbox before signup the new Dropbox account!
- Go to your fake referral post/article. Click referral link and signup new account.
- VMware have the Snapshot function which you can return to the same state repeatedly.

Updated NOV 2020

- We need to verify in email.

Change the screen resolution using Ubuntu command line

$ xrandr -q

SZ: Pixels Physical Refresh
0 1024 x 768 ( 271mm x 201mm ) 75 70 60
1 800 x 600 ( 271mm x 201mm ) 85 75 72 60 56
2 640 x 480 ( 271mm x 201mm ) 85 75 72 60
*3 832 x 624 ( 271mm x 201mm ) *74
4 720 x 400 ( 271mm x 201mm ) 85
5 640 x 400 ( 271mm x 201mm ) 85
6 640 x 350 ( 271mm x 201mm ) 85

$ xrandr -s 1440x900

Download VMware Workstation 12.5.9 for Windows 7 and VMware Tools

https://softwareupdate.vmware.com/cds/vmw-desktop/ws/12.5.9/7535481/windows/core/VMware-workstation-12.5.9-7535481.exe.tar
https://softwareupdate.vmware.com/cds/vmw-desktop/ws/12.5.9/7535481/windows/packages/tools-linux.tar
https://softwareupdate.vmware.com/cds/vmw-desktop/ws/12.5.9/7535481/windows/packages/tools-windows.tar

or

https://packages.vmware.com/tools/releases/

Manual Install VMware Tools on Ubuntu

tar xvfz VMwareTools-10.1.6-5214329.tar.gz
cd vmware-tools-distrib
./vmware-install.pl

	The VMware Host-Guest Filesystem allows for shared folders between the host OS 
	and the guest OS in a Fusion or Workstation virtual environment.  Do you wish 
	to enable this feature? [yes] no

	Thinprint provides driver-free printing. Do you wish to enable this feature? 
	[yes] no

You can now manually start VMware Tools by invoking  /usr/bin/vmware-user

Updated 09 NOV 2020

Last 2 years Dropbox started require to verify an email.
Google "disposable email". There are a lot of free domains to use.

https://generator.email/
https://temp-mail.org/en/
https://tempmailo.com/
https://tempmailgen.com/
https://temp-mail.io/en/
https://tempr.email/en/
https://tempmail.ninja/
https://www.temporary-mail.net/

Windows 10 can change mac address here :

HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}

Disable and Enable Network Adapter

C:\>getmac /v

American Name Generator

https://www.namegeneratorfun.com/american

Macaddress Generator

https://miniwebtool.com/mac-address-generator/

Disposable Email

https://www.google.com/search?q=disposable+email
https://generator.email/

Edit Ubuntu EOF Repositories

sudo nano /etc/apt/sources.list

Manual replace the existing (archive|security|extras).ubuntu.com to the old-releases.ubuntu.com

or

sudo sed -i.bak -r 's/(archive|security|extras).ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list

sudo apt-get update

Get rid of "Network service discovery disabled" error

Network service discovery disabled
Your current network has a .local domain, which is not recommended and incompatible with the Avahi network service discovery. The service has been disabled.

sudo apt purge avahi-daemon
sudo apt autoremove

Disable IPv6 in NetworkManager

nmcli connection modify "Wired connection 1" ipv6.method ignore
nmcli connection down "Wired connection 1"
nmcli connection up "Wired connection 1"

Disable IPv6 via sysctl

Instead of the editing the /etc/sysctl.conf file, we create a custom config file.
so the changes can be preserved when you upgrade Ubuntu.

sudo nano /etc/sysctl.d/60-custom.conf

Copy and paste the following 3 lines:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

If your computer has a wireless card, you also need to add the following line to the file. 
Replace wlan0 with the name of your own wireless network interface.

net.ipv6.conf.wlan0.disable_ipv6 = 1
net.ipv6.conf.ens33.disable_ipv6 = 1
net.ipv6.conf.eth0.disable_ipv6 = 1

Save and close the file. Then execute the following commands to apply the above changes.

sudo sysctl -p
sudo systemctl restart procps

/etc/hosts not updated when changing Device Name in Settings or via command line

When changing the device name in the "About" page, the /etc/hosts file is not updated to reflect the new name, which causes programs to respond slowly, such as when running a sudo command in a terminal window or opening pretty much any app / program. The delay is anywhere between five seconds to upwards of thirty.

Updating /etc/hosts to reflect the new name or remove the default name solves the problem instantly and operation returns to normal.

hostnamectl set-hostname NEWNAME
or
nmcli general hostname NEWNAME

echo 127.0.0.1 NEWNAME >> /etc/hosts

E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

sudo killall apt apt-get dpkg
sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/dpkg/lock-frontend
sudo dpkg --configure -a

Useful Infos

-------------------------------------------------------

- Ubuntu version beginning with year number eg. 16.xx, 17.xx, 18.xx, ...
- Ubuntu releases 2 versions per year at April (xx.04) and October (xx.10).
- Ubuntu LTS version release every 2 years at April eg. 16.04, 18.04, 20.04, 22.04, 24.04, ...
- 32 bits version is discontinued and the latest version is 16.04.

-------------------------------------------------------

sudo passwd root
su -

or

sudo -i

-------------------------------------------------------

apt list --installed
apt purge <package-name>
apt autoremove

-------------------------------------------------------

Resize Partition /sda1

https://downloads.sourceforge.net/gpart ... -amd64.iso

delete Swap Partition /sda2 then resize /sda1

Use a Swap File (Recommended)

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab


swapon --show
free -h

Terminal

Copy Text      Ctrl + Shift + C
Paste Text     Ctrl + Shift + V
Cancel         Ctrl + C
Mouse Copy     Select → Middle click to paste

random_mac.sh

#!/bin/bash

echo
echo --------------------------------------------

# Generate a random hostname
RANDOM_HOSTNAME=$(shuf -n 1 /usr/share/dict/words | sed -E 's/\W//g; s/(.+)/\u\1/')
echo "New hostname: $RANDOM_HOSTNAME"

# Modify new hostname
nmcli general hostname $RANDOM_HOSTNAME
echo 127.0.0.1 $RANDOM_HOSTNAME >> /etc/hosts

# Generate a random MAC Address
RANDOM_MACADDRESS=$(printf '%02X:%02X:%02X:%02X:%02X:%02X' $((RANDOM%128*2)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)))
echo "New MAC Address: $RANDOM_MACADDRESS"
echo --------------------------------------------

# Modify new MAC Address
nmcli connection show
echo --------------------------------------------
nmcli connection modify "Wired connection 1" 802-3-ethernet.cloned-mac-address $RANDOM_MACADDRESS
nmcli connection modify "Wired connection 1" ipv6.method ignore
echo --------------------------------------------
nmcli connection down   "Wired connection 1"
echo --------------------------------------------
nmcli connection up     "Wired connection 1"
echo --------------------------------------------
echo

Update JUNE 2025 - Ubuntu 22.04 LTS AMD64

Dropbox Linux support only 64 bit then we have to move to Ubuntu 22.04 LTS amd64
Ubuntu 22.04 LTS is automatic install vmware-tools.

- Edit Ubuntu.vmx

	bios.bootDelay = "10000"
	svga.autodetect = "FALSE"
	svga.maxWidth = "1400"
	svga.maxHeight = "850"
	svga.vramSize = "16777216"

- Set BIOS Numlock and first boot as harddisk.

- Set Resolution : 1280x800
- Set Region Formats : United Kingdom
- Set Screen Blank : Never
- Set Accessibility Animations : Off

- VMware set Share folder D:\vmware\#Source to /mnt/hgfs/Source

	cp /mnt/hgfs/Source/random_mac.sh $HOME
	cp /mnt/hgfs/Source/dropbox_2020.03.04_amd64.deb $HOME

- Uninstall avahi-daemon and upgrade firefox.

	sudo apt update
	sudo apt list --installed
	sudo apt purge avahi-daemon
	sudo apt autoremove
	sudo apt install --only-upgrade firefox

- FireFox : Disable Offer to Save Password
- FireFox : Install Add-ons: uBlock Origin
- FireFox : Install Add-ons: User-Agent Switcher PRO by Matt Glow and Enable : On
- FireFox : Import all Bookmarks

	*** Do not visit Dropbox webpage ***

	https://www.namegeneratorfun.com/american
	https://www.google.com/search?q=disposable+email
	https://generator.email/
	https://www.dropbox.com/account/general
	https://www.dropbox.com/account/referrals
        https://www.dropbox.com/install-linux
	Your referral link

- Install Dropbox dependencies

        sudo apt install python3-gpg libpango1.0-0

	https://www.dropbox.com/download?dl=packages/ubuntu/dropbox_2020.03.04_amd64.deb

- Save VMWARE Snapshot

- Random mac address and hostname

        sudo ./random_mac.sh

- Register with your referral link, disposable email, random User-Agent

- Verify email

- Install Dropbox

	sudo apt install ./dropbox_2020.03.04_amd64.deb