Pinging Error Message - ping: unknown host

Problem Definition:
# ping
ping: unknown host
(if the ping answer is unknown host mean dns is not able to transulate ip)

# traceroute Name or service not known
Cannot handle "host" cmdline arg `' on position 1 (argc 1)

PROBLEM: Host contains public ip address from outside network we are able to connect(or)ping it.But from inside we are not able to ping it outside(try ping

Image 1) showing eth1 interface with default gateway
Image 2) Adding gateway to private ip address
Image 3) See the result how is it respond to the route command

About the eth1 interface Details.

Linux Awk Basic Structure and Workflow

1)Simple Linux awk utility Example.
$ ls | awk ' BEGIN { print "start"} { print } END { print  "stop"}'
Request Forms
test - output
test - output1

SMARTPHONE Antroid service(AIRDROID) is not able to CONNECT Between LAPTOP to SMARTPHONE

Fist Follow the below verificiation
1)Airdroid Smartphone(service providing system) needs to confirm whether service is stared or not.
2)Using nmap - <smartphone-IP> confirm Port is open .
# nmap

Starting Nmap 5.51 ( ) at 2015-12-25 13:42 IST
Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 0.47 seconds
Information: Actually smartphone is Host UP status 0nly.but It still showing down status.So, I have try with
# nmap -Pn
Starting Nmap 5.51 ( ) at 2015-12-25 13:44 IST
Nmap scan report for
Host is up (0.0082s latency).
Not shown: 999 closed ports
8888/tcp open  sun-answerbook
MAC Address: 44:80:EB:7C:6E:29 (Unknown)

Build Robust Aquirum Fish Tank in Your Home.

Before we are going to build fish aquarium.
we need to gather information.
1)What is size of the fish tank
1.1)what is main purpose of the fish tank.
2)Depends on the fish tank size needs to buy aquarium filter.

Ask one more question -> What is size of the fish tank - > if we are going very deeper in this perspective.
what is main purpose of the fish tank
1)Entertainment/Loving pets
2)sales purpose
in this above question, my choice is 1)Entertainment/Loving Pets -> I have plan to built the

Keep Password Manager To save Password Securely from hackers

1)it has been downloaded upto 10 Millions(Dec 2015).
2)I didn't use any other Password protection (android apps).
After I have used this for the first time, I have confirmed to use this software for life long.Because, it is easier, simple , safe and secure.