Crescent Technocrats Club

WHAT IS A FIREWALL? A firewall is a network security tool that keeps track of and filters incoming and outgoing network traffic by previously specified security policies for an organization. A Real-World Example is Windows defender. USE OF FIREWALL Any security design must have a firewall because it gives your network security device control over host-level defenses, eliminating the need for guesswork. Firewalls focus on blocking malware and application layer attacks. LAYERS OF FIREWALL We'll discuss the Firewall layers starting with the application layer that directly benefits the end user and working our way down to the physical layer. 7. APPLICATION LAYER Human-Computer Interaction Layer, where applications can access network services. 6.  PRESENTATION LAYER Ensures that the data is in a usable format and data encryption occurs here. 5.  SESSION LAYER Maintains connections and is responsible for controlling ports and sessions. 4. TRANSPORT LAYER Transmits Data using transmi...

What is an IP Address? A typical IPv4 address might look like this: 192.168.1.1   You all might be wondering what are the numbers here and why these numbers are separated or divided into four chunks with 3 digits each. Okay simply put, we students get identified with a unique set of sequence of numbers called RRN. Similarly, IP Address is like a unique set of numbers that is assigned to each and every computer so that they can be identified easily. IP Address stands for "Internet Protocol Address". It helps you to develop a virtual connection between a destination and a source. What are the types of IP addresses? There are mainly four types of IP addresses, Public Private Static Dynamic Public IP Address It is a common general IP address given by the "Internet Service Provider" (ISP) to the router. It is a primary address associated with the whole network. Here every device connected to the network has the same IP. Private IP Address It is also similar to public IP ...