Which Ports on Firewall Should be Allowed for IPSEC Site to Site VPN? - GeeksforGeeks (2024)

Difference between Site to Site VPN and Remote Access VPN

Both Site-to-site VPN and Remote access VPN are the types of VPN that stand for Virtual Private Network. In terms of protecting communications over the internet, virtual private networks play an important role. They create encrypted tunnels to ensure that data moved between a user and a network remains confidential and intact. The various types of

Difference between Traditional Firewall and Next Generation Firewall

Prerequisite - Introduction to firewall in computer network and Types of Firewall 1. Traditional Firewall : A traditional firewall is network security device which typically provides stateful inspection of network traffic that entering or exiting point inside network based on state, port, and protocol. So in simple traditional firewall mainly contr

Difference Between Hardware Firewall and Software Firewall

A firewall is a network security system or shielding layer that lies between the internet and the computer networks. A firewall typically set up a barrier between a trusted network and an untrusted network. An Internet firewall is a device or software which is designed to protect your computer from data and viruses that you do not want. What is a S

Difference between Express VPN and IPVanish VPN

Express VPN and IPVanish VPN are very popular Virtual Private Network (VPN) that offers quality services for it's customers. 1. Express VPN : ExpressVPN is Virtual Private Network (VPN) service popular as security and privacy tool for web services. Encryption of user's web traffic and IP address masking is offered by Express VPN. The name Express V

50 Common Ports You Should Know

Port number is a 16-bit numerical value that ranges from 0 to 65535. Well-known port (0-1023), registered port (1024-49151), and dynamic port is three types of port number space. (49152-65535). These ports can be opened and used by software applications and operating system services to send and receive data over networks (LAN or WAN) that employ ce

Difference Between Stored Cross Site Scripting and Reflected Cross Site Scripting

In today’s online world, keeping web applications secure is crucial to protect both businesses and their users. One common threat is Cross-Site Scripting (XSS), where attackers insert harmful code into websites or web applications. This can cause to serious issues like stealing passwords, redirecting users to dangerous sites, and changing web conte

IPSec Architecture

IPSec (IP Security) architecture uses two protocols to secure the traffic or data flow. These protocols are ESP (Encapsulation Security Payload) and AH (Authentication Header). IPSec Architecture includes protocols, algorithms, DOI, and Key Management. All these components are very important in order to provide the three main services: Confidential

Difference between IPSec and SSL

IPSec Protocol is an Internet Engineering Task Force standard suite of protocols between two communication points. It can also be defined as encrypted, decrypted, and authenticated packets. It generally uses cryptographic security services to protect communications. It can be seen that network-level peer and data origin authentication, data integri

What is an IPsec Tunnel?

IPsec might be a gaggle of protocols that square measure used along to line up encrypted connections between devices. It helps keep knowledge sent over public networks securely. IPsec is typically accustomed-based VPNs, and it works by encrypting scientific discipline packets, at the side of authenticating the supply wherever the packets return fro

IPsec Protocols

IPsec (Internet Protocol Security) is a large set of protocols and algorithms. IPsec is majorly used for securing data transmitted all over the internet. The Internet Engineering Task Force, or IETF, which was solely developed the IPsec protocols for the purpose of providing security at the IP layer through authentication and encryption of IP netwo

IPsec (Internet Protocol Security) Tunnel and Transport Modes

IPsec (Internet Protocol Security) is an important generation for shielding statistics transmitted over IP networks. IPsec (Internet Protocol Security) is a set of protocols and methods used to steady communications over IP networks along with the Internet. It gives a sturdy framework for ensuring the confidentiality, integrity, and authenticity of

Name a Major Drawback of IPSec?

Answer: A major drawback of IPSec is its complexity in configuration and management.IPSec (Internet Protocol Security) is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet in a data stream. However, it comes with its challenges Complex ConfigurationIPSec's secure nature requires deta

IP security (IPSec)

IP Sec (Internet Protocol Security) is an Internet Engineering Task Force (IETF) standard suite of protocols between two communication points across the IP network that provide data authentication, integrity, and confidentiality. It also defines the encrypted, decrypted, and authenticated packets. The protocols needed for secure key exchange and ke

IPSec Full Form

IPSec stands for Internet Protocol Security. It is a suite of protocols between two communication points across the IP network that provides data authentication, integrity, and confidentiality. It was developed by the Internet Engineering Task Force(IETF) in 1995. It defines the architecture for security services for IP network traffic. It provides

At Which Layer does SSL VPN Operates?

Answer : SSL VPN operates at the Transport Layer -Layer 4 of the OSI model.SSL VPN operates primarily at the Transport Layer - Layer 4 of the OSI model, but its implementation can extend to the Application Layer - Layer 7 as well. Transport Layer - Layer 4SSL VPN creates a secure and encrypted connection between the client and the server at this la

Firewall methodologies

A firewall is a network security system that monitors and takes actions (permit or deny traffic) on the basis of policies defined explicitly. It can be performed by a single device, group of devices, or by software running on a single device like a server. Cisco ASA has the biggest share in the market while there are other vendors of firewall also

How to setup firewall in Linux?

What is a Firewall? Firewall is a network security system that filters and controls the traffic on a predetermined set of rules. This is an intermediary system between the device and the internet. NOTE:- If you already know about the working of Firewall in Linux and just want to know the Commands, then please go the end of the tutorial. How the Fir

The Importance of Using a Firewall

Overview :A firewall is a firmware or software that is an essential part of a computer network’s security system. In simple terms, it acts as an intermediary or wall of separation between the insecure internet and secure internal network which may be a computer, company network, or home network. Separating the internet from your internal network tr

Difference between Router and Firewall

Router: A router is known as the connecting devices in networking. It is used to select the shortest route for a packet to achieve its target. A router's main purpose is to attach different networks simultaneously. Like firewall, it also works on the network layer but it also works on physical layer, and data link layer of the OSI(Open Systems Inte

What is a Next generation Firewall?

Overview :The traditional firewall provides a clear overview of network traffic jams. Allows or restricts traffic according to state, port, and protocol, and filters traffic according to rules specified by the administrator. The next-generation firewall (NGFW) does this, and much more. along with access control, NGFWs can block modern threats such

What is a Proxy Firewall?

Prerequisite : Introduction of Firewall Introduction :A firewall proxy provides security by controlling the information going in and out of the network. Firewall proxy servers filter, cache, log, and control requests coming from a client to keep the network secure and free of intruders and viruses. Proxy firewall has its own IP (internet protocol)

Difference between WAF and Firewall

In this article, let us know the major distinguishability between WAF(Web Application Firewall) and Firewall in a clean way. Web Application Firewall(WAF) :A Web Application Firewall operated as Application Firewall for HTTP Applications, it implements a set of rules for a HTTP Conversation and these rules will cover how to deal common attacks such

What is a Web Application Firewall?

Web Application Firewall protects the web application by filtering, monitoring, and blocking any malicious HTTP/S traffic that might penetrate the web application. In simple words, a Web Application Firewall acts as a shield between a web application and the Internet. This shield protects the web application from different types of attacks. Working

Firewall Design Principles

A Firewall is a hardware or software to prevent a private computer or a network of computers from unauthorized access, it acts as a filter to avoid unauthorized users from accessing private computers and networks. It is a vital component of network security. It is the first line of defense for network security. It filters network packets and stops

Firewall as a Service (FWaaS)

Prerequisite: Introduction of Firewall in Computer Network A firewall in a computer network functions as a barrier that prevents illegal entry to your computer's connection. But, FWaaS is a cloud-based firewall method that enables businesses to simplify their IT architecture. It includes web filtering, enhanced threat protection, an intrusion preve

Introduction of Firewall in Computer Network

In the world of computer networks, a firewall acts like a security guard. Its job is to watch over the flow of information between your computer or network and the internet. It's designed to block unauthorized access while allowing safe data to pass through. Essentially, a firewall helps keep your digital world safe from unwanted visitors and poten

Types of Network Firewall

Network Firewalls are the devices that are used to prevent private networks from unauthorized access. A Firewall is a security solution for the computers or devices that are connected to a network, they can be either in the form of hardware as well as in form of software. It monitors and controls the incoming and outgoing traffic (the amount of da

Zone-based firewall Configuration

Prerequisite - Zone-based firewall Zone-based firewall is an advanced method of stateful firewall. In stateful firewall, an entry containing source IP address, destination IP address, source Port number and destination Port number, is maintained for the traffic generated by the trusted (private) network in the stateful database. This will allow the

Difference between Firewall and Antivirus

Firewall and Antivirus are the two terms that are used in the cyber security space that protect our systems and device. A firewall is a software and hardware-based system that monitors the incoming and outgoing network activity on our system while an antivirus is software that removes the threats in the system and recovers our system from viruses.

Difference Between Firewall and Proxy Server

Firewalls and proxy servers are both important components in network security and management. They are designed to prevent potential threats, but they serve different purposes and operate in distinct ways. Understanding these differences is useful to understanding why both firewall and proxy functionality is important for an organization’s cybersec