Cyber Security| Network | PICK A Network LAYER | Challenge

//Objective Guess Network Layer!

Pick A Network Layer ?

Network Layer | online communications |Transfer data packets | between different devices or networks

TCP??

-WHAT IS LAYER 4 (TRANSPORT LAYER) ?

Transmission Control Protocol is the language a computer uses to access the internet.

It consists of a suite of protocols designed to establish a network of networks to provide a host with access to the internet.

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TCP
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TCP Wireshark

TELNET ???

-WHAT IS LAYER 7 (APPLICATION LAYER)?

a network protocol that allows a user on one computer to log into another computer that is part of the same network.

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Telnet

ICMP(INTERNET CONTROL MESSAGE PROTOCOL) ??

-WHAT IS LAYER 3 (NETWORK LAYER)?

Internet Control Message Protocol (ICMP) is a TCP/IP network layer protocol that provides troubleshooting, control and error message services.

ICMP is most frequently used in operating systems for networked computers, where it transmits error messages.

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ICMP

10BASE -T ??

WHAT IS LAYER-1(PHYSICAL LAYER)

An Ethernet standard that transmits at 10 Mbps over twisted wire pairs (telephone wire). 10Base-T was the first version of Ethernet to use a star architecture. When used with a hub, 10Base-T shares the 10 Mbps bandwidth between all the ports.

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10baseT

FDDI(FIBER DISTRIBUTED DATA INTERFACE) ??

-WHAT IS LAYER 2 (DATA LINK LAYER 2)?

Fiber Distributed Data Interface (FDDI) is a standard for data transmission in a local area network.
FDDI provides 100 Mbps of data throughput.

FDDI includes two interfaces.

It is used to connect the equipment to the ring over long distances.

FDDI is a LAN with Station Management.

Allows all stations to have equal amount of time to transmit data.

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fddi
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FDDI

Sockets ??

-WHAT IS LAYER 5 (Session)?

A socket is one endpoint of a two-way communication link between two programs running on the network.

A socket is bound to a port number so that the TCP layer can identify the application that data is destined to be sent to.

An endpoint is a combination of an IP address and a port number.

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socket
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Socket Connection between Burp and Firefox

We can use proxy for connecting Burp With Firefox

UDP ??

-WHAT IS LAYER 4(Transport)?

UDP (User Datagram Protocol) is a communications protocol that is primarily used for establishing low-latency and loss-tolerating connections between applications on the internet. It speeds up transmissions by enabling the transfer of data before an agreement is provided by the receiving party.

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UDP

Tv Communication Use UDP Protocol For Fast Data Transfer

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Dish Communication Between Tv Use UDP.

DNS ??

-WHAT IS LAYER 7(Application)?

The Domain Name System (DNS) is a central part of the internet, providing a way to match names (a website you’re seeking) to numbers (the address for the website).

DNS syncs up domain names with IP addresses enabling humans to use memorable domain names while computers on the internet can use IP addresses.

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DNS

ping patelcoupon.com

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ping patelcoupon.com

IGMP ??

-WHAT IS LAYER 3(NETWORK LAYER)?

Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and adjacent routers on IPv4 networks to establish multicast group memberships.

IGMP is an integral part of IP multicast and allows the network to direct multicast transmissions only to hosts that have requested them.

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IGMP

API ??

-WHAT IS LAYER 5(Session)?

An API (Application Programming Interface) is a set of functions that allows applications to access data and interact with external software components, operating systems, or microservices.

To simplify, an API delivers a user response to a system and sends the system’s response back to a user.

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API

HTTP ??

-WHAT IS LAYER 7(Application)?

Hypertext Transfer Protocol is the protocol used to transfer data over the web.

It is part of the Internet protocol suite and defines commands and services used for transmitting webpage data.

HTTP uses a server-client model.

A client, for example, may be a home computer, laptop, or mobile device.

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patelcoupon — Welcome to patelcoupon

<html>

<head>Welcome To Cyber Security Blog</head>

<body>@AKASHRANJANPATEL</body>

</html>

SSH ??

-WHAT IS LAYER 7(Application)?

Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network.

Typical applications include remote command-line, login, and remote command execution, but any network service can be secured with SSH.

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ssh ubandit0@banditoverthewire.org 2222
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SSH commands

PPP ??

-WHAT IS LAYER 2(Data Link)?

Point-to-Point Protocol (PPP) is a Data link layer (layer 2) communications protocol between two routers directly without any host or any other networking in between.

It can provide connection authentication, transmission encryption, and compression.

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PPT
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OSI Model

Akash Ranjan Patel

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