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nslookup

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  nslookup command in Linux with Examples Difficulty Level : Expert Last Updated : 24 May, 2019 Nslookup (stands for “Name Server Lookup”) is a useful command for getting information from DNS server. It is a network administration tool for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or any other specific DNS record. It is also used to troubleshoot DNS related problems. Syntax: nslookup [option]   Options of nslookup command: nslookup g...
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Nmap

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1. Nmap Nmap is an open-source network scanner that is used to recon/scan networks. It is used to discover hosts, ports, and services along with their versions over a network. It sends packets to the host and then analyzes the responses in order to produce the desired results. It could even be used for host discovery, operating system detection, or scanning for open ports. It is one of the most popular reconnaissance tools. To use nmap: Ping the host with ping command to get the IP address ping hostname Open the terminal and enter the following command there: nmap -sV ipaddress Replace the IP address with the IP address of the host you want to scan. It will display all the captured details of the host. To know more, you can read more from here .  
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