Linux network programming - Netlink socket and Netfilter- Part 1 Linux network programming refers to the development of applications that communicate over a network using Linux-based operating systems. It involves the use of various protocols and APIs such as sockets, Netlink, and Netfilter to establish and manage network connections, send and receive data, and monitor network traffic. Developers can use programming languages such as C, C++, Python, and Java to write network applications on Linux. Sockets are a popular API for network programming on Linux and are used to establish TCP/IP connections, send and receive data, and perform other network-related tasks. Netlink sockets, on the other hand, are used for communication between user-space processes and the kernel for networking-related tasks. Netfilter is a specific implementation of Netlink used for managing and monitoring network traffic in Linux-based systems. It provides a standardized interface that enables user-space applications to access and interact with various kernel-level services and features related to networking. Netlink is used to transfer information between the kernel and user-space processes. It consists of a standard sockets-based interface for user space processes and an internal kernel API for kernel modules. The internal kernel interface is not documented in this manual page. There is also an obsolete netlink interface via netlink character devices; this interface is not documented here and is provided only for backward compatibility. Package netfilter provides encoding and decoding of Netlink messages into Netfilter attributes. It handles Netfilter-specific nesting of attributes, endianness, and is written around a native Netlink implementation A Netlink socket is a type of socket used for communication between the kernel and user-space processes in Linux. It is used for various purposes, including network-related tasks such as routing, firewalling, and traffic control. Netlink sockets use a standardized communication protocol that allows for the exchange of messages between the kernel and user-space processes. These messages may contain information such as configuration data, status updates, or requests for specific actions to be taken. The Netlink protocol is implemented using a set of generic Netlink functions that can be used by different subsystems to communicate with user-space processes. ----------------------------------------------------------------------------------------------------------------------------------------------- Linux kernel foundation course Full Stack Linux Kernel & Device Driver Programming Course Its a complete guided course of ~140+ hrs. combination of following modules. Life time LMS access Get full LMS access instantly after enrolling, 125+ hrs of recorded lectures – System programming, Linux Kernel Internals, Linux Device Drivers and Linux Debudding techniques. Real Time Projects Work with real time projects through out the course. Expert resources and useful tools to help make your project a success, from ideation to enterprise adoption. Interview preparation 1-on-1 on demand mock interview sessions will be taken by experts having experience of cracking SDE interviews of tie one company like Samsung, Qualcomm, Intel & Cisco etc. Contribute to open source Contributing to open source can be a rewarding way to learn, teach, and build experience in just about any skill you can imagine. --------------------------------------------------------------------------------------------------------------------------------------- Linux System Programming ~30 hrs. training This module will teach you the necessary theory and applications to properly understand the advanced algorithms and concepts of C and Linux system. Linux Kernel Internals ~30 hrs. training In this module we will cover Linux Kernel Internals. To have sufficient understanding of Linux Operating System or any other Operating System, for that matter, and what makes them functional at core. Linux Device Driver ~30 hrs. training This module teaches you how to develop device drivers in the Linux for projects on embedded platforms -raspberry pi 4, Beaglebone black, or on the traditional PC platform. through theory and practical Linux Socket Programming ~30 hrs. training In this module, you will learn Linux Socket Programming which provides quite a complete discussion presented in graphically manner with working programs from the very basic networking up to the packet level. Network Device Drivers ~30 hrs. training This module will teach you how to write Linux device driver for PCI device, GPIO (General Purpose IO), USB and pseudo Network device with PING (ICMP protocol) functionality. Contact : info@linuxkernelfoundation.com --------------------------------------------------------------------------------------------------------------------------------------- Like share subscribe our channel for more such content.