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CSGO Server blocking legitimate connections


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Garlicvideos
Junior Member
Join Date: Nov 2018
Old 12-07-2018 , 12:49   CSGO Server blocking legitimate connections
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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.

Quote:
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?
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Dr.Mohammad
Senior Member
Join Date: Jan 2016
Old 12-07-2018 , 13:11   Re: CSGO Server blocking legitimate connections
Reply With Quote #2

i have this problem:
HTML Code:
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.
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freak.exe_uLow
Senior Member
Join Date: Jul 2012
Location: Germany
Old 12-07-2018 , 13:47   Re: CSGO Server blocking legitimate connections
Reply With Quote #3

Quote:
Originally Posted by Dr.Mohammad View Post
i have this problem:
HTML Code:
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
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morpig
Junior Member
Join Date: Apr 2017
Old 12-07-2018 , 13:55   Re: CSGO Server blocking legitimate connections
Reply With Quote #4

Quote:
Originally Posted by Garlicvideos View Post
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.

Last edited by morpig; 12-07-2018 at 13:57.
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Dr.Mohammad
Senior Member
Join Date: Jan 2016
Old 12-07-2018 , 14:21   Re: CSGO Server blocking legitimate connections
Reply With Quote #5

Quote:
Originally Posted by freak.exe_uLow View Post
use this here: https://forums.alliedmods.net/showpo...6&postcount=36 that fixed your problem
only for linux??
i have windows
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Garlicvideos
Junior Member
Join Date: Nov 2018
Old 12-08-2018 , 00:12   Re: CSGO Server blocking legitimate connections
Reply With Quote #6

Where do I put the
Quote:
sm_cvar qc_requestmap_enabled "0"
cvar?

Even when I put it at the bottom of my server.cfg my server crashes on boot.
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e54385991
AlliedModders Donor
Join Date: Aug 2013
Old 12-08-2018 , 00:59   Re: CSGO Server blocking legitimate connections
Reply With Quote #7

It's all useless.

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

Because it's UDP spoofing attack / any ip faked

Last edited by e54385991; 12-08-2018 at 01:00.
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Dr.Mohammad
Senior Member
Join Date: Jan 2016
Old 12-08-2018 , 02:12   Re: CSGO Server blocking legitimate connections
Reply With Quote #8

Quote:
Originally Posted by e54385991 View Post
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??
Dr.Mohammad is offline
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