Monthly Archives: April 2017

Routing Protocols. RIP, EIGRP, OSPF, IS-IS

Routing protocols are used to establish a path between routers. The most common routing protocols used are: Routing Information Protocol (RIP), Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), and Intermediate System to Intermediate System (IS-IS). Which protocol to use with a Local Area Network (LAN) depends on the following Factors: Administrative cost of management. Administrative… Read More »

IDS / IDPS Detection Methods. Anomaly, Signature, and Stateful Protocol Analysis

IDS and IDPS detection methods include: anomaly detection, signature detection, and a newer method named stateful protocol analysis. Anomaly detection works using profiles of system service and resource usage and activity. The IDS/IDPS starts by creating a baseline also known as a training period. This baseline is used to compare to current usage and activity as a way to… Read More »

Bastion Host Overview

A Bastion Host (BH) is a computer on a network perimeter which is running a hardened Operating System (OS). This protection includes patches, authentication, encryption, and eliminates unnecessary software and services  (Weaver, Weaver, Farwood, & Weaver, 2012). Weaver et al.’s (2012) provides the following list of BH characteristics: A machine with adequate memory and processor speed. All patches… Read More »