Tech Tips ..

1. Check whether remote machine is Virtual machine or Physical machine

 Virtual Machine => dmidecode  | grep -i "vm"
Physical Machine => dmidecode | grep -i vm

example:

Virtual Machine:
[root@localhost ~]# dmidecode  | grep -i "vm"
        Manufacturer: VMware, Inc.
        Product Name: VMware Virtual Platform
        Serial Number: VMware-56 4d d6 6c 32 aa e1 46-46 8b e8 da 78 cb 78 ef
               VME (Virtual mode extension)
        Description: VMware SVGA II
        String 1: [MS_VM_CERT/SHA1/27d66596a61c48dd3dc7216fd715126e33f59ae7]

Physical Machine:
dmidecode | grep -i vm
        VME (Virtual mode extension)


 2. Resolve VNC Client DISPLAY blank issue

This issue may be due to corruption of VNC Server xstartup file. SSH to your VNC Server machine and remove/move the ~/.vnc/xstartup file
3. Shift between Android and Linux Distro on Android Device using chroot

It looks like we can install any Linux Distro(Debian, Ubuntu ..) on Android device as both share the same kernel. We can shift between Android & Linux Distro on the android device using chroot(which is used to shift between different root file systems). As we are completely shifting the root file system, all linux commands/exes should run on Android device too ..

I found the below resources online. They may be useful:

How to install Ubuntu on Android -
chroot command : A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name (and therefore normally not access) files outside the designated directory tree. The term "chroot" may refer to the chroot(2)system call or the chroot(8) wrapper program. The modified environment is called a "chroot jail".

ref:

 http://www.linuxquestions.org/questions/linux-server-73/how-to-know-the-remote-machine-is-virtual-machine-or-physical-machine-913526/