What is VLANs?

what is vlan?

What is VLANs? – A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2).LAN is the abbreviation for local area network and in this context virtual refers to a physical object recreated and altered by additional logic. VLANs work by applying tags to network frames and handling these tags in networking systems – creating the appearance and functionality of network traffic that is physically on a single network but acts as if it is split…

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What Is Address Resolution Protocol?

What is ARP?

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…

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What is Phishing?

What is Phishing?

What is 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…

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What is Nmap?

What is Network Mapper?

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…

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