If you manage a Garry’s Mod server—especially open sandbox, darkRP, or build servers—leaving duplication tools completely unprotected is an invitation for disaster. Securing your server requires a multi-layered approach: 1. Implement Strict Duplication Limits
Garry's Mod has a strict engine limit on the number of entities that can exist at one time (typically 8,192). Malicious dupes utilize specialized scripts or compressed data structures to spawn thousands of entities instantly, hitting the engine limit and forcing a hard crash to the desktop. The Impact on Community Servers
Server owners have reported being because a crasher dupe created a “crash loop” that forced them to manually delete save files from the server’s FTP. gmod server crasher dupe
Some "crash dupes" available on the Steam Workshop claim to spawn "nothing" but are actually designed to trigger game-ending errors or viruses that shut down the client or server . Defensive Measures for Server Owners
Continuous high-CPU spikes can violate the terms of service of shared server hosts, leading to suspended accounts. Step-by-Step Security Guide for Server Admins If you manage a Garry’s Mod server—especially open
If you use Advanced Duplicator 2, check the server-side save logs to find the exact file name.
Server owners can sleep soundly knowing that basic configuration (prop limits, updated addons, anticheat) stops 99% of crasher dupes. which reduces server-killing lag spikes.
Crasher dupes exploit the Source Engine's computational limitations. Malicious creators use several common vectors to force a server offline. 1. The Physics Crash (Lag Machines) The most common crasher dupes rely on physics calculations.
Crasher dupes often succeed because they force the server to process too much data in a single frame. Implementing a cooldown on the Duplicator tool ensures that even if a dupe is large, it cannot be spammed rapidly to force a crash. How to Handle an Active Attack
Stay safe, and keep building (responsibly). 🔧
: Many servers replace the default duplicator with AdvDupe2 because it spawns items gradually rather than all at once, which reduces server-killing lag spikes.