What is DHCP? DHCP or Dynamic Host Configuration Protocol is a network protocol using which a device in a network gets an IP address and other network configuration parameters from a server. In order to be able to communicate with other devices in a TCP/IP network, a...
What is the DNS Amplification attack? A DNS amplification attack is a Denial of Service attack, in which an attacker sends a large number of DNS requests to DNS resolvers. The attacker uses the IP address of the targeted victim as the source IP address in all the...
What is a Wireless Access Point (WAP) or Access Point (AP)? A Wireless Access Point (WAP) or Access Point (AP) is a hardware device that enables wireless devices to connect with a wired network. An access point can connect with a router, switch, or hub using an...
What is Network Access Control (NAC)? When a device tries to access a network, the device must comply with the security policy of the organization. For example, a device with outdated anti-malware software should not be able to access the network. If such a device...
What is a Captive Portal? Sometimes when we try to access public Wi-Fi in a restaurant, mall, or hotel, we are redirected to a web page that requests login credentials or requests us to accept Terms and Conditions. This type of web page is called a captive portal. A...
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