Nexardo / Blog
Setup guides, diagnostics and practical decisions for running games on your own VPS.
Minecraft
Safely prune unused Minecraft Java chunks using MCA Selector: InhabitedTime thresholds, coordinate bounding box protection, and synchronized cleaning of region, poi, and entities folders.
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Migrating PaperMC plugins and databases to another server: flushing SQLite WAL logs, archiving the plugins directory, setting file permissions, and startup verification.
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Importing an existing Bedrock world into a Linux Bedrock Dedicated Server: extracting .mcworld archives, staging LevelDB structures, configuring level-name in server.properties, and permissions.
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Restoring a single player's progress from a Minecraft Java backup: mapping usernames to UUIDs via usercache.json, extracting targeted .dat files, and preventing in-memory flush overwrites.
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Configuring secure RCON on a Minecraft server: binding to 127.0.0.1 in server.properties, UFW firewall perimeter isolation, and automated maintenance bash scripts via mcrcon.
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Advanced Purpur server optimization: villager lobotomization, mob aggression throttling under load, alternative keepalive, and achieving rock-solid 20 TPS across dense servers.
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Choose compatible Fabric mods and measure simulation, memory and networking effects instead of copying JVM tweaks.
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Installing official Minecraft Bedrock Dedicated Server on Linux: libcurl4 runtime dependencies, unprivileged user isolation, RakNet UDP ports, and systemd with LD_LIBRARY_PATH.
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Creating Minecraft server world backups without downtime: hot snapshot protocol via save-off and save-all flush, Zstandard compression, and safe disaster recovery.
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How to safely update a Paper Minecraft server: querying builds via REST API v2, validating SHA256 checksums, establishing rollback checkpoints, and plugin safety.
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Performance profiling in Minecraft with Spark: interpreting flame graphs, measuring MSPT, isolating hopper and entity lag, and tuning JVM garbage collection.
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Complete guide to configuring Geyser and Floodgate on a Paper/Purpur Minecraft server: Bedrock packet translation, auth-type: floodgate, player name prefixes, and UDP port 19132 routing.
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