[Garlicvideos]

My CSGO Server is blocking incoming connections. Some people are able to connect to it while others can't. I am one of the unfortunate few who are unable to connect.

The server does not lag, running on 102 ticks.

This shows up in the console.

IP rate limit sustained 252321 distributed packets at 8410.7 pps (0 buckets).

Sometimes it would be 30k pps.

It will follow up saying connections from <ipaddress> is blocked, and the ipaddresses are from all over the world, leading me to believe that it is a DDOS attack.

However, why would that prevent legitimate connections?



1. Is it a DDOS attack? If it is, what can I do to prevent it?
2. Why are some people unable to connect to the server while others are able to?
3. How do I solve this issue?

[Dr.Mohammad]

i have this problem:

IP rate limit under distributed packet load (39 buckets, 113 global count), rejecting 83.220.185.153:1740.
IP rate limit under distributed packet load (45 buckets, 102 global count), rejecting 31.44.4.86:21210.
IP rate limit under distributed packet load (46 buckets, 104 global count), rejecting 46.39.35.221:40356.
IP rate limit under distributed packet load (40 buckets, 110 global count), rejecting 188.233.188.80:63839.

[freak.exe_uLow]

Originally Posted by Dr.Mohammad i have this problem: IP rate limit under distributed packet load (39 buckets, 113 global count), rejecting 83.220.185.153:1740. IP rate limit under distributed packet load (45 buckets, 102 global count), rejecting 31.44.4.86:21210. IP rate limit under distributed packet load (46 buckets, 104 global count), rejecting 46.39.35.221:40356. IP rate limit under distributed packet load (40 buckets, 110 global count), rejecting 188.233.188.80:63839.

use this here: https://forums.alliedmods.net/showpo...6&postcount=36 that fixed your problem

[morpig]

Originally Posted by Garlicvideos My CSGO Server is blocking incoming connections. Some people are able to connect to it while others can't. I am one of the unfortunate few who are unable to connect. The server does not lag, running on 102 ticks. This shows up in the console. Sometimes it would be 30k pps. It will follow up saying connections from <ipaddress> is blocked, and the ipaddresses are from all over the world, leading me to believe that it is a DDOS attack. However, why would that prevent legitimate connections? 1. Is it a DDOS attack? If it is, what can I do to prevent it? 2. Why are some people unable to connect to the server while others are able to? 3. How do I solve this issue?

Well it is a DDOS attack if ipaddresses are coming from different countries that's up to 30k pps (packets per seconds!). The only way you can prevent it is by using a DDoS-protected server, a GRE tunnel service, or a metamod plugin sent above ^.

DDoS attacks works by sending tons of trash packets or query packets (A2S server queries) that are similar to what the CS:GO client sends, which makes it difficult to differentiate between legitimate and counterfeit connections.

Some people are able to connect because their packets are received by the server itself, in the midst of an attack.

[Dr.Mohammad]

Originally Posted by freak.exe_uLow use this here: https://forums.alliedmods.net/showpo...6&postcount=36 that fixed your problem

only for linux??
i have windows

[Garlicvideos]

Where do I put the

sm_cvar qc_requestmap_enabled "0"

cvar?

Even when I put it at the bottom of my server.cfg my server crashes on boot.

[e54385991]

It's all useless.

https://forums.alliedmods.net/showpo...16&postcount=9

Because it's UDP spoofing attack / any ip faked

[Dr.Mohammad]

Originally Posted by e54385991 It's all useless. https://forums.alliedmods.net/showpo...16&postcount=9 Because it's UDP spoofing attack / any ip faked

how to i can block this attack??