What is a Host-Based Firewall? A host-based firewall is a software program that runs on a server or other computer and controls traffic in and out of that computer. A host-based firewall can be used to protect any kind of device that connects to the internet, including laptops, smartphones, and servers. How Does Host-Based Firewall … Read more
What is a Denial of Service Attack? A denial of service attack (DoS attack) is an attempt to make a machine or network resource unavailable to its intended users. Although the means by which this is accomplished vary, the ultimate goal is always to prevent legitimate users from accessing the resource. DoS attacks can be … Read more
What is TACACS+? TACACS+ (Terminal Access Controller Access Control System Plus) is an authentication protocol used to secure access rights for users on a network. It verifies the identity of users logging into the network and controls what services, resources, and operations they are allowed to access. The protocol was developed by Cisco Systems in … Read more
Forward Proxy vs Reverse Proxy A forward proxy is an intermediate server that sits between the client and the origin server. The client sends a request to the forward proxy, specifying the origin server as the target. The forward proxy then forwards the request to the origin server and returns the response to the client. … Read more
GRE vs IPSEC Tunnels There are two primary types of VPN tunnels that can be used in order to connect remote sites or users together: GRE tunnels and IPSec tunnels. GRE (Generic Routing Encapsulation) tunnels are used to encapsulate a wide variety of protocols inside IP packets. GRE tunnels are used to connect devices that … Read more