What is NAT? Network Address Translation or NAT is a method using which IP addresses in a private network are mapped to public IP addresses. A large organization may have an internal network. All hosts in the internal network may not need public IP addresses. In that...
What is a proxy server? A proxy server works as an intermediary between a client that requests some resources from a server and the server that provides the requested resources. All requests from the client reach the proxy server first. And, all responses from the...
What is certificate-based authentication? Certificate-based authentication is an authentication process in which public-key cryptography and digital certificates are used to authenticate an entity. As in this type of authentication process, an entity does not need to...
What is the SYN Flood? SYN Flood is a type of Denial of Service (DoS) attack in which attackers send a large number of SYN requests to a system and create a huge number of half-open connections. These requests consume lots of server resources such that after some time...
What is password spraying? Password spraying is an attack in which an attacker uses a set of commonly used passwords to access a large number of accounts. The attack is perpetrated in such a way that the attacker evades account lockouts on the attempted user accounts....
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