Ethical Hacking Institute Course in Pune-India
Extreme Hacking | Sadik Shaikh | Cyber Suraksha Abhiyan
Credits: nmap.org
Nmap is short for Network Mapper. It is an open source security tool for network exploration, security scanning and auditing. However, nmap command comes with lots of options that can make the utility more robust and difficult to follow for new users.
The purpose of this post is to introduce a user to the nmap command line tool to scan a host and/or network, so to find out the possible vulnerable points in the hosts. You will also learn how to use Nmap for offensive and defensive purposes.
NMAP (“NETWORK MAPPER”) IS AN OPEN SOURCE TOOL FOR NETWORK EXPLORATION AND SECURITY AUDITING. IT WAS DESIGNED TO RAPIDLY SCAN LARGE NETWORKS, ALTHOUGH IT WORKS FINE AGAINST SINGLE HOSTS. 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. WHILE NMAP IS COMMONLY USED FOR SECURITY AUDITS, MANY SYSTEMS AND NETWORK ADMINISTRATORS FIND IT USEFUL FOR ROUTINE TASKS SUCH AS NETWORK INVENTORY, MANAGING SERVICE UPGRADE SCHEDULES, AND MONITORING HOST OR SERVICE UPTIME.
ZENMAP IS THE OFFICIAL NMAP SECURITY SCANNER GUI. IT IS A MULTI-PLATFORM (LINUX, WINDOWS, MAC OS X, BSD, ETC.) FREE AND OPEN SOURCE APPLICATION WHICH AIMS TO MAKE NMAP EASY FOR BEGINNERS TO USE WHILE PROVIDING ADVANCED FEATURES FOR EXPERIENCED NMAP USERS. FREQUENTLY USED SCANS CAN BE SAVED AS PROFILES TO MAKE THEM EASY TO RUN REPEATEDLY. A COMMAND CREATOR ALLOWS INTERACTIVE CREATION OF NMAP COMMAND LINES. SCAN RESULTS CAN BE SAVED AND VIEWED LATER. SAVED SCAN RESULTS CAN BE COMPARED WITH ONE ANOTHER TO SEE HOW THEY DIFFER. THE RESULTS OF RECENT SCANS ARE STORED IN A SEARCHABLE DATABASE.
www.extremehacking.org
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