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Master server list pollution


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nikooo777
AlliedModders Donor
Join Date: Apr 2010
Location: Lugano, Switzerland
Old 09-16-2023 , 01:21   Master server list pollution
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Hey everyone.

Quick question. Does anyone have a way to contact whoever at Valve could help with this insane situation?

The master server list on counter-strike: source is polluted by thousands of fake servers making it impossible to find legit servers, they found a way to fake the player count and even go beyond the limits.

attached is a screenshot of the situation

and all those fake servers originate from these IPs:

Code:
89.111.131.172
91.219.149.6
188.127.241.129
212.57.127.30
Attached Thumbnails
Click image for larger version

Name:	masterserver.jpg
Views:	240
Size:	85.3 KB
ID:	201548   Click image for larger version

Name:	masterserver2.jpg
Views:	105
Size:	87.3 KB
ID:	201549  
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Last edited by nikooo777; 09-28-2023 at 14:41.
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Bacardi
Veteran Member
Join Date: Jan 2010
Location: mom's basement
Old 09-21-2023 , 04:42   Re: Master server list pollution
Reply With Quote #2

...same happen on csgo
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nikooo777
AlliedModders Donor
Join Date: Apr 2010
Location: Lugano, Switzerland
Old 09-28-2023 , 14:18   Re: Master server list pollution
Reply With Quote #4

seems like there's an open github issue for this as well: https://github.com/ValveSoftware/Sou...es/issues/5101

and a thread in the mailing list https://www.mail-archive.com/hlds_li.../msg76807.html
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nikooo777
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Join Date: Apr 2010
Location: Lugano, Switzerland
Old 09-28-2023 , 14:40   Re: Master server list pollution
Reply With Quote #5

I just came up with a simple powershell script to block 99% if those malicious servers making the server list good again:

PHP Code:
# List of IP addresses to block
$IPList = @('89.111.131.172''91.219.149.6''188.127.241.129','212.57.127.30')

# Loop through each IP and block it
foreach ($IP in $IPList) {
    
Write-Host "Blocking IP: $IP"

    
# Block inbound traffic
    
New-NetFirewallRule -DisplayName "Block IP Inbound - $IP-Direction Inbound -RemoteAddress $IP -Action Block

    
# Block outbound traffic
    
New-NetFirewallRule -DisplayName "Block IP Outbound - $IP-Direction Outbound -RemoteAddress $IP -Action Block
}

Write-Host "All IPs have been blocked." 
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Fraggor
Junior Member
Join Date: Jun 2020
Old 09-28-2023 , 19:12   Re: Master server list pollution
Reply With Quote #6

This might help https://github.com/Ballganda/css-server-blacklist
I'm not the repo's author
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nikooo777
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Join Date: Apr 2010
Location: Lugano, Switzerland
Old 09-29-2023 , 22:42   Re: Master server list pollution
Reply With Quote #7

Quote:
Originally Posted by Fraggor View Post
This might help https://github.com/Ballganda/css-server-blacklist
I'm not the repo's author
I appreciate the list, but those IPs are almost entirely on the private range.
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