Server-side example:
In the old days of Roblox (pre-2014), anything a client (player) did would replicate instantly to the server and to all other players. This made creating GUI scripts simple, but it was a nightmare for security. Exploiters could run malicious code, spawn parts, and ruin games with ease. roblox fe gui script
remote.OnServerEvent:Connect(function(attacker, targetName) local target = game.Players:FindFirstChild(targetName) if target and target.Character and target.Character:FindFirstChild("Humanoid") then local dist = (attacker.Character.HumanoidRootPart.Position - target.Character.HumanoidRootPart.Position).Magnitude if dist <= 10 then target.Character.Humanoid.Health = 0 end end end) This respects FE because the server calculates distance and applies damage. The phrase "roblox fe gui script" represents a crucial bridge between player input and server authority. When you understand Filtering Enabled, you stop writing scripts that only work in testing and start building robust, secure games that function perfectly for all 100 players in a live server. Server-side example: In the old days of Roblox
Then came . In modern Roblox, by default, the server is the ultimate authority. The client can suggest actions, but the server must verify them. This means that a standard LocalScript (which runs on your computer) cannot directly change a part that another player can see unless the server authorizes it. remote
-- Script in ServerScriptService local remote = game.ReplicatedStorage:WaitForChild("GiveCoinEvent") remote.OnServerEvent:Connect(function(player) -- SERVER AUTHORITY: Validate and apply changes local leaderstats = player:FindFirstChild("leaderstats") if leaderstats then local coins = leaderstats:FindFirstChild("Coins") if coins then coins.Value = coins.Value + 100 print(player.Name .. " received 100 coins via GUI") end end end)
remote.OnServerEvent:Connect(function(player) player.Character.Humanoid.Health = 0 -- instantly kills anyone who fires remote! end) Without checks, any player (including exploiters) could fire that remote and kill anyone, even from across the map. Always add . Advanced FE GUI Script Techniques Cooldowns to Prevent Spamming Add a debounce in both LocalScript (for UI feedback) and Server Script (for security).