What Is Address Resolution Protocol?

What is ARP? – Address Resolution Protocol (ARP) is a TCP/IP protocol that maps IP network addresses to the addresses (hardware addresses) used by a data link protocol. It operates as the interface between the OSI network layer and OSI Data link layer and is located below the network layer. An Ethernet network makes use of two hardware addresses that find the source and destination of each frame that Ethernet sends. The destination address can identify a broadcast packet, which will be sent to all connected computers. The hardware address…

Read More

What is Phishing?

Phishing

Phishing Process is a technique in which Fake Email which looks like legitimate email is sent to target host. When the receipent opens the link, he is enticed for providing information. Typically, readers are redirected to the fake webpage that resembles an official website. The user provides all sensitive information to a fake website believing as an official website because of its resemblance. Phishing is a type of social engineering attack often used to steal user data, including login credentials and credit card numbers. It occurs when an attacker, masquerading…

Read More

What is Nmap?

What is Nmap?

Nmap tool (“Network Mapper”) is a free and open source 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 tool 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…

Read More