{"id":23,"date":"2022-03-04T00:29:34","date_gmt":"2022-03-04T05:29:34","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/fortigatefirewall\/front-matter\/introduction\/"},"modified":"2023-08-22T12:00:31","modified_gmt":"2023-08-22T16:00:31","slug":"introduction","status":"publish","type":"front-matter","link":"https:\/\/pressbooks.bccampus.ca\/fortigatefirewall\/front-matter\/introduction\/","title":{"raw":"Preface","rendered":"Preface"},"content":{"raw":"Firewall technologies are growing very fast and knowing how to protect the network is vital for network administrators. A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Firewalls have been the first line of defense in network security for over 25 years.[footnote]What is a Firewall?<\/a>[\/footnote] The lack of materials available for students to learn is part of our issue.\r\n\r\nSince I have been teaching Enterprise Security at BCIT, I have received a lot of feedback from my students. Then, I have decided to collect all labs and make them as a book for students. This book is part of the Enterprise Security Course and is based on the practical labs in the class. Each chapter begins with a learning objective and step-by-step explanations in GNS3 to beginners on how to build different security scenarios from scratch.\r\n\r\nThe book is divided into ten chapters as following:\r\n