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Thread: Firewalls

  1. #31
    There are three types of firewall like as a Packet filters, Stateful inspection, Proxys.

  2. #32
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    Packet filters, Stateful inspection, Proxys.

  3. #33
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    Generally the firewall has two network interfaces: one for the external side of the network, one for the internal side. Its purpose is to control what traffic is allowed to traverse from one side to the other. As the most basic level, firewalls can block traffic intended for particular IP addresses or server ports.

  4. #34
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    The five types of firewall are:

    Packet filtering firewall
    Circuit-level gateway
    Stateful inspection firewall
    Application-level gateway (aka proxy firewall)
    Next-generation firewall (NGFW)

    https://esds.co.in/security/vtmscan

  5. #35
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    Packet-filtering firewalls.
    Circuit-level gateways.
    Stateful inspection firewalls.
    Application-level gateways (a.k.a. proxy firewalls)
    Next-gen firewalls.
    Software firewalls.
    Hardware firewalls.
    Cloud firewalls.
    1

  6. #36
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    packet filtering, application, and packet inspection

  7. #37
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    Packet-filtering firewalls.
    Circuit-level gateways.
    Stateful inspection firewalls.
    Application-level gateways (a.k.a. proxy firewalls)
    Next-gen firewalls.
    Software firewalls.
    Hardware firewalls.
    Cloud firewalls.

  8. #38
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    Firewalls are one of the oldest network perimeter security tools in the market, and it’s just as important today as it was 30 years ago. Filtering out malicious traffic before it enters a network is a crucial network security operation.

    With technological evolution, firewalls have advanced in capabilities and functions. I’ll list the five broad types of firewalls here without going into too much detail.

    Packet filtering firewalls – Network access is controlled by inspecting outgoing and incoming packets based on source and destinations, such as IP addresses, protocols, and ports. It’s also called a static firewall.

    Stateful inspection firewalls – Also called a dynamic firewall, it inspects packets and checks whether the packet belongs to a particular session or not.

    Proxy firewalls – It's a much more thorough firewall, as it verifies requests at the application level itself. It prevents direct contact between external clients and your internal server.

    Next-generation firewalls (NGFW) - It’s an “intelligent” firewall that combines traditional capabilities with newer technologies like deep packet inspection (DPI) and intrusion prevention systems (IPS).

  9. #39
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    As an server admin we always have to secure our server from various kinds of attacks like DDos, malware, bruteforce, rootkits and backdoor. /firewall help us to secure our server, Config server firewall is oneoftheserver whichhelpsus to secure our server. You need SSH access toinstall forewall on server. You can first install firewall on server and then configure it according to need to secure it.

  10. #40
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    A firewall is a security system that controls incoming and outgoing network traffic based on a set of rules and other criteria. Firewalls are commonly used to protect a computer or a network from unauthorized access and can be implemented in both hardware and software forms.

    There are several types of firewalls, including:

    Network Firewalls: This type of firewall is placed at the gateway of a network to protect all devices connected to it. Network firewalls can be hardware-based, such as a router with a built-in firewall, or software-based, such as a firewall program that runs on a server.

    Host-based Firewalls: This type of firewall is installed on individual host computers, such as a personal computer or a server, to protect them from unauthorized access. Host-based firewalls are typically software-based.

    Application Firewalls: This type of firewall is designed to control access to specific applications or services running on a network or host. Application firewalls can be implemented in both hardware and software forms and can be used to block specific types of traffic, such as email or web traffic.

    Next-Generation Firewalls (NGFW): This type of firewall is an advanced firewall that combines the features of traditional firewalls with other security technologies, such as intrusion prevention systems (IPS) and web filtering. NGFWs are generally considered more effective at detecting and blocking advanced threats and malware.

    Stateful Firewall: This type of firewall keeps track of the state of network connections, allowing it to keep track of which connections are legitimate. This allows blocking unwanted traffic and only allow traffic that is part of a legitimate connection.

    Proxy Firewall: This type of firewall acts as an intermediary between the clients and the servers, it hides the IP address of the clients and forwards the traffic to the appropriate server. This allows for more granular control over the traffic, including caching and filtering.

    Each type of firewall has its own strengths and weaknesses, and the right choice of the firewall will depend on the specific needs of your network or host.

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