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https://issues.apache.org/jira/browse/GUACAMOLE-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17909389#comment-17909389
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Nick Couchman commented on GUACAMOLE-2011:
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I've lowered the priority of this, and also removed the 2.0.0 tags from it, as
2.0.0 already has a couple of big tasks tagged for it (AngularJS -> Angular,
and Jarkarta EE compatibility), and, given the uncertainties around what this
implementation would look like, I'm not sure we want to tag it for 2.0.0 at the
moment.
> Add QUIC protocol support to guacd to improve performance
> ---------------------------------------------------------
>
> Key: GUACAMOLE-2011
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-2011
> Project: Guacamole
> Issue Type: Wish
> Components: guacamole-client, guacamole-common-js, guacamole-ext,
> guacamole-server, guacd
> Reporter: Conrad O'Brien
> Priority: Minor
> Original Estimate: 5,376h
> Remaining Estimate: 5,376h
>
> # {*}Reduced Latency{*}:
> ** QUIC's 0-RTT (zero round-trip time) and 1-RTT connection establishment
> capabilities minimize the time required to initiate remote desktop sessions,
> resulting in a faster and more responsive experience.
> # {*}Improved Throughput{*}:
> ** QUIC multiplexes multiple streams over a single connection, eliminating
> head-of-line blocking and optimizing data transmission efficiency. This
> ensures smooth operation even during high-concurrency scenarios.
> # {*}Enhanced Reliability{*}:
> ** QUIC's resilience to packet loss and support for seamless migration of
> connections (e.g., when switching networks) provide stable and uninterrupted
> remote desktop experiences.
> # {*}Built-In Security{*}:
> ** By integrating TLS 1.3 directly into its design, QUIC offers robust
> encryption without the need for additional configuration, ensuring secure
> communication between clients and {{{}guacd{}}}.
> ----
> h3. Technical Considerations for Implementation
> # {*}Protocol Adaptation{*}:
> ** Adapting {{guacd}} to support QUIC requires modifications to the
> Guacamole protocol, which currently operates over TCP or WebSocket. This
> involves reworking the protocol's transport layer to handle UDP-based
> communication while maintaining compatibility with the existing architecture.
> # {*}Library Dependencies{*}:
> ** Incorporate a QUIC library compatible with C, such as:
> *** {*}ngtcp2{*}: A lightweight and efficient QUIC implementation in C.
> *** {*}lsquic{*}: A high-performance QUIC library designed for flexibility.
> *** {*}picoquic{*}: A minimalistic and portable implementation of QUIC.
> ** Update the build system (e.g., {{{}CMakeLists.txt{}}}) to include
> detection and integration of the selected library.
> # {*}Security Integration{*}:
> ** Ensure seamless compatibility between QUIC's built-in TLS 1.3 encryption
> and Guacamole's existing security framework.
> ** Implement certificate management and provide clear documentation on
> securing QUIC connections.
> # {*}Configuration Options{*}:
> ** Add new configuration parameters in {{guacd.conf}} for enabling and
> customizing QUIC:
>
> makefile
> Copy code
> {{enable_quic = true
> quic_port = 443}}
> ** Provide detailed documentation on these options for administrators.
> # {*}Backward Compatibility{*}:
> ** Design the implementation to maintain existing TCP/WebSocket
> functionality as a fallback mechanism. This ensures uninterrupted service for
> users who cannot or do not wish to enable QUIC.
> # {*}Testing and Validation{*}:
> ** Develop comprehensive test cases to validate the functionality and
> performance of QUIC under various conditions:
> *** {*}Unit Tests{*}: For new functions related to QUIC handling.
> *** {*}Integration Tests{*}: To verify interoperability with existing
> components.
> *** {*}End-to-End Tests{*}: To assess overall performance improvements and
> stability.
> ----
> h3. Documentation Updates
> * {*}Configuration Guide{*}: Add a section detailing the new QUIC-related
> configuration options, setup steps, and practical use cases.
> * {*}Security Guide{*}: Provide an overview of QUIC’s encryption features
> and recommendations for secure deployment.
> * {*}Troubleshooting{*}: Include a troubleshooting guide for common issues,
> such as firewall configurations blocking UDP traffic.
> ----
> h3. Impact and Feasibility
> While integrating QUIC into {{guacd}} involves non-trivial changes to the
> codebase and protocol architecture, the long-term benefits outweigh the
> initial development effort. This enhancement aligns with the broader industry
> trend of adopting modern, efficient transport protocols like HTTP/3, which is
> built on QUIC. By implementing this feature, Apache Guacamole can offer
> superior performance and reliability, catering to users with demanding
> network environments.
> This proposal is intended to open discussions on the feasibility and
> prioritization of QUIC support. The technical details and implementation
> roadmap can be further refined with input from contributors and maintainers.
> Feedback and alternative perspectives are welcome to ensure this aligns with
> the project's goals and standards.
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