# ModSync
\n## Secure Client-Server Synchronization & Compliance Enforcement
\nModSync is a lightweight, two-part system designed for server administrators who need absolute transparency over what their players are running. By bridging the gap between the server (Spigot\/Paper) and the client (Fabric), ModSync allows you to enforce mod and resource pack requirements instantly, maintain historical logs, and verify the integrity of every connection.<\/p>\n
## \ud83d\udee1\ufe0f Core Security
\nModSync doesn’t just “ask” the client for a list; it uses a secure challenge-response handshake:<\/p>\n
**Dynamic Hashing:** Every handshake is secured with SHA-512 using a server-side pepper and a unique challenge UUID to prevent packet spoofing.<\/p>\n
**Auto-Authorization:** Link player usernames to unique client hardware IDs to prevent account sharing or spoofing on “cracked” or insecure servers.<\/p>\n
**Privacy-First:** Players are prompted to agree to data reporting on their first join, ensuring compliance with privacy standards.<\/p>\n
## \u2699\ufe0f Technical Features
\n**Categorized Resource Reporting:** Unlike basic list-reporters, ModSync distinguishes between Active (enabled), Inactive (in folder), and Deleted resource packs.<\/p>\n
**Intelligent Mod Consolidation:** Automatically collapses library dependencies (like fabric-api sub-modules) into single entries to keep admin modlists readable.<\/p>\n
**Historical Audit Logs:** Every player gets a dedicated .yml log tracking their mod\/pack history across sessions\u2014including timestamps of when a mod was removed.<\/p>\n
**Remote Diagnostics:** Admins can request remote screenshots or even “dump” specific mod\/pack files directly from a client to verify suspicious files.<\/p>\n
**Bedrock Support:** Native compatibility with Geyser\/Floodgate to skip verification for Bedrock players while maintaining strict security for Java players.<\/p>\n
## \ud83d\udcbb Commands _**\/modsync packlist _**\/modsync screenshot _**\/modsync dump _**\/modsync authreset _**\/modsync reload**_ \u2013 Hot-reload all configurations and banned\/required lists.<\/p>\n ## \ud83d\ude80 Setup _Developed by Dark_Yoddha \u2014 Built for Integrity._<\/p>\n","protected":false},"excerpt":{"rendered":" Minecraft plugin & client mod that enforces fair play by verifying mods and resource packs, instantly blocking banned content and generating transparent per\u2011player logs.<\/p>\n","protected":false},"featured_media":104070,"template":"","meta":{"_minecraft_slug":"mod-sync","_minecraft_project_id":"WdL3t7jw","_minecraft_author":"dark_yoddha","_minecraft_license":"LicenseRef-All-Rights-Reserved","_minecraft_downloads":3803,"_minecraft_follows":13,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"mod-sync.zip","_minecraft_size_bytes":5610280,"_minecraft_version_count":12,"_minecraft_updated_at":"2026-05-16T04:34:34.841832Z","_minecraft_date_created":"2025-11-26T04:36:50.033079Z","_minecraft_date_modified":"2026-05-08T05:25:18.026068Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/mod-sync","_minecraft_icon_attachment_id":104070,"_minecraft_imported_at":"2026-06-05T23:45:22+00:00","_minecraft_import_hash":"987ced985c1b1df8901fa5a9a63d1f6b","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[124,97,126,127,129,92],"mod_loader":[130,99,132,134],"minecraft_version":[62,37,40,41,73,74,38,78,79,80,81,82],"class_list":["post-104069","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-bukkit","mod_category-fabric","mod_category-management","mod_category-paper","mod_category-spigot","mod_category-utility","mod_loader-bukkit","mod_loader-fabric","mod_loader-paper","mod_loader-spigot","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9"],"yoast_head":"\n
\n_**\/modsync modlist
\n1. Install the **Plugin** on your Spigot\/Paper server.
\n2. Install the **Mod** on your Fabric client.
\n3. Configure your **_required-mods_** and banned-mods in the server’s **_config.yml_**.<\/p>\n