Tejender Singh

March 5, 2021

lab6 packet tracer – skills integration challenge(CCNA-Lab)

My friend asks me a question about the CCNA lab, after checking the whole question and addressing the table I found the solution that, you can […]
February 22, 2021


SUBNET ADDRESSING We have studied in the previous post about “IP Addresses” of all hosts connected to the Internet are divided into two parts:- 1) The […]
February 9, 2021


IP Address:- An IP address is a 32-bit decimal number that normally written as four numbers between 1 and 255 (8bits, or 1 byte) each separated […]
September 2, 2020

Google Authenticator Two-Factor Authentication on CentOS 7

if you are using vas services or some important site/data and you think that’s secure. then you are thinking wrong because there are too many people […]