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NMAP - Network Mapper

Introduction : Nmap ("Network Mapper") is a free and open source ( license ) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X.
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Most Frequently Used Linux Commands

In this article we give you the most as often as possible used Linux Commands. Coming from the solace of a PC or Mac work area, the Linux Command Line looks not at all like what you regularly utilize. For somebody to work in the Terminal they have to acquaint themselves with Linux commands. The Linux Command line is very helpful, fundamental to utilizing your Linux or VM and if done right, it furnishes you with more understanding and handy use than the Windows or Mac work area ever could. System Linux  Commands Command Uses uname Displays linux system information cat /etc/redhat_release Displays which version of redhat installed uptime Display how long the system has been running hostname Display system host name last reboot Display system reboot history date Display the current date and time cal Display the calendar of the current month w Displays who is logged on whoami Displays current user id finger user Displays information about user reboot Rebo...

What is Internet of Things ?

What is the Internet of Things? In a nutshell, the Internet of Things is the concept of connecting any device (so long as it has an on/off switch) to the Internet and to other connected devices. The IoT is a giant network of connected things and people – all of which collect and share data about the way they are used and about the environment around them. That includes an extraordinary number of objects of all shapes and sizes – from smart microwaves, which automatically cook your food for the right length of time, to self-driving cars, whose complex sensors detect objects in their path, to wearable fitness devices that measure your heart rate and the number of steps you’ve taken that day, then use that information to suggest exercise plans tailored to you. There are even connected footballs that can track how far and fast they are thrown and record those statistics via an app for future training purposes. How does it work? Devices and objects ...

Do’s and Don’ts of ATM transactions

Do’s and Don’ts of ATM transactions Do’s Conduct your ATM transactions in complete privacy, never let anyone see you entering your Personal Identification Number (ATM Password) After completion of transaction ensure that welcome screen is displayed on ATM screen Ensure your current mobile number is registered with the bank so that you can get alerts for all your transactions Beware of suspicious movements of people around the ATM or strangers trying to engage you in conversation Look for extra devices attached to the ATMs that looks suspicious Inform the bank if the ATM/Debit card is lost or stolen, immediately, report if any unauthorised transaction Check the transaction alert SMSs and bank statements regularly If cash is not dispensed the ATM does not display “cash out” please report to the Bank on the number mentioned in the Notice Board Immediately check your phone for SMS for debit amount Don’ts Do not write your PIN on the card, memorise your PIN number D...

Top 10 Safe Computer Tips

1. Operating System: If you are Windows User always use Genuine Windows except for Pirated Windows. If you don't want to buy genuine Windows operating system then use Ubuntu Linux Operating System instead of windows operating system, it is an open-source OS and free. 2. Software Updates & OS Updates: Software Updates & OS updates are a very important thing if you are not updating Software & OS, You are in the risk area. To Prevent your system from Ransomware Attacks update your computer software always. Set your computer for automatic software update and Operating System updates. 3. Passwords: Never use simple passwords like 123456, abcd1234, password, qwerty123, mobile numbers, date of birth, etc always try to set pass-phases instead of a password, because it is hard to brute force password by the hacker. Never use the same password for different sites always use unique passwords. 4. Backups: Backup your important data on a regular basis, it can prote...

Introduction to Linux for Beginners

What is Linux ? It is based on UNIX operating system architecture which is widely known as open source Operating System. Command Line Interface environment and mainly used for server side working in 70’s and Free to use hence no licence needed. The Linux OS has both Graphical User Interface (GUI) as well as Command Line Interface (CLI). It has many flavors based on UNIX architecture comes under LINUX OS are Ubuntu, Fedora, Kali Linux, Redhat , Suse, Linux Mint, etc. Linux mainly operated using commands on terminal process called BASH (Bourne Again Shell) is the Linux default shell. It can support multiple command interpreters. File System supported by Linux : xfs, ramfs, nfs, vfat, cramfsm ext3, ext4, ext2, ext1, ufs, autofs, devpts, ntfs, and many more. File Type Used : .tar, .bundle, .tar.cz , .deb etc Linux Environment: It provides separate files/permission/shell for each user. "$"  represents for  Simple User . "#" ...