[LeaveMe]

We have a server with a base of 50+ players and it's updated to 0.3z last week.
However we are DoSed by some bot attacker which I don't know.

CPU, RAM, DISK, and even NIC usage are just normal!
This is a kind of sa-mp server attack since all of the above resources are at least 75% free.

All I can share is that no-one of my recources usage change much before, durring and after attack.
The attack causes lag and server freeze during attack(all players are timed-out after 60secs ans server doesn't response even to queries in server browser!

I have tried to set maxnpc to number of my gamemode NPCs with no luck.. still attacker can do what he want.
So later I have managed to completly stop this kind of attack with setting maxnpc to 0 and removed all NPCs from gamemode.

Maybe a separate thread for processing NPCs help to mitigate this attack.
Is there a sulution to stop this kind of attack so I can get my NPCs back ?

[d0]

pawn Код:

public OnPlayerConnect(playerid) {

new ip[25];
GetPlayerIP(playerid, ip, sizeof(ip));
if(IsPlayerNPC(playerid) && strcmp("127.0.0.1", ip) != 0)Ban(playerid); //ban all npcs not connecting from localhost

return 1;
}

[LeaveMe]

This didn't help, and now he can even DoS my server even with maxnpc set to 0...
This is really annoying bug and should be fixed as soon as possible..

[landmine]

tryt something like this http://pastebin.com/ufC8tQiq

[LeaveMe]

Quote:

Originally Posted by landmine tryt something like this http://pastebin.com/ufC8tQiq

Well.. I know scripting and I know how to optimize my gamemode, mitigate attacks etc.
This is not a thing that current sa-mp natives can fix, but a server network layer or some dead-lock code.. I don't know..

[LeaveMe]

EDITED

[GnikLlort]

UDP flood.