UDP Reverse Proxy - User Datagram Protocol Reverse Proxy
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        **What is UDP Reverse Proxy?**

        A **UDP Reverse Proxy** is a server that receives UDP packets from clients and forwards them to backend servers, acting as an intermediary at the UDP transport layer.

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        **Why is UDP Reverse Proxy useful?**

        UDP Reverse Proxies are useful for:
        - **Load balancing** UDP-based applications and services
        - **Hiding backend server details** from clients for security
        - **Failover and high availability** for UDP services
        - **Traffic monitoring and control** at the network edge

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        **How it works?**

        - The proxy listens for incoming UDP packets from clients.
        - It forwards packets to one or more backend UDP servers based on configured rules.
        - It manages client-server session mapping as UDP is connectionless.
        - Often used with load balancing software that supports UDP, like HAProxy, NGINX (stream module), or specialized UDP proxies.

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        **Where is UDP Reverse Proxy used?**

        UDP Reverse Proxies are used in:
        - DNS services (UDP port 53)
        - Streaming media servers
        - Online gaming servers
        - VoIP protocols like SIP (for some functions)
        - IoT device communications

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        **Which OSI layer does this protocol belong to?**

        UDP Reverse Proxy operates at the **Transport Layer (Layer 4)** of the OSI model.

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        **Is UDP Reverse Proxy Windows specific?**

        No, UDP Reverse Proxies are **not Windows specific** and can run on various platforms.

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        **Is UDP Reverse Proxy Linux specific?**

        No, UDP Reverse Proxies are **not Linux specific**, though Linux is a common deployment environment.

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        **Which Transport Protocol is used by UDP Reverse Proxy?**

        UDP Reverse Proxy uses:
        - **UDP (User Datagram Protocol)**

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        **Which Port is used by UDP Reverse Proxy?**

        - Any UDP port depending on backend services.
        - Examples: 53 (DNS), 123 (NTP), or custom UDP ports.

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        **Is UDP Reverse Proxy using Client server model?**

        Yes, it uses the **client-server model**:
        - Acts as a **server** to the client sending UDP packets
        - Acts as a **client** forwarding UDP packets to backend servers

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        Topics in this section,

                * :ref:`Learnings in this section <UDP_Reverse_Proxy_step1>`

                * :ref:`Terminology <UDP_Reverse_Proxy_step2>`

                * :ref:`Version Info <UDP_Reverse_Proxy_step3>`

                * :ref:`UDP_Reverse_Proxy Version&IEEE Details <UDP_Reverse_Proxy_step5>`

                * :ref:`UDP_Reverse_Proxy Basic Setup on Ubuntu using IPv4 <UDP_Reverse_Proxy_step18>`

                * :ref:`UDP_Reverse_Proxy Basic Setup on Ubuntu using IPv6 <UDP_Reverse_Proxy_step19>`

                * :ref:`UDP_Reverse_Proxy Protocol Packet Details <UDP_Reverse_Proxy_step6>`

                * :ref:`UDP_Reverse_Proxy Usecases <UDP_Reverse_Proxy_step7>`

                * :ref:`UDP_Reverse_Proxy Basic Features <UDP_Reverse_Proxy_step8>`
                    
                * :ref:`Reference links <UDP_Reverse_Proxy_step17>`


.. _UDP_Reverse_Proxy_step1:

.. tab-set::

    .. tab-item:: Learnings in this section

        * In this section, you are going to learn

.. _UDP_Reverse_Proxy_step2:

.. tab-set::

    .. tab-item:: Terminology
        
       * Terminology


.. _UDP_Reverse_Proxy_step3:

.. tab-set::

    .. tab-item:: Version Info
    
         * Version Info


.. _UDP_Reverse_Proxy_step5:

.. tab-set::

    .. tab-item:: UDP_Reverse_Proxy Version&RFC Details

        * rfc details

.. _UDP_Reverse_Proxy_step18:

.. tab-set::

    .. tab-item:: UDP_Reverse_Proxy Basic Setup on Ubuntu using IPv4

       * setup

.. _UDP_Reverse_Proxy_step19:

.. tab-set::
  
   .. tab-item:: UDP_Reverse_Proxy Basic Setup on Ubuntu using IPv6

     * setup
       
.. _UDP_Reverse_Proxy_step6:

.. tab-set::

    .. tab-item:: UDP_Reverse_Proxy Protocol Packet Details

        * packet details
       


.. _UDP_Reverse_Proxy_step7:

.. tab-set::

    .. tab-item:: UDP_Reverse_Proxy Usecases

       * usecases
        
        

.. _UDP_Reverse_Proxy_step8:

.. tab-set::

    .. tab-item:: UDP_Reverse_Proxy Basic Features
    
        * features 



.. _UDP_Reverse_Proxy_step17:

.. tab-set::

    .. tab-item:: Reference links
     
       * Reference links