asked on

How to block visitors using Proxy Servers

Hello..

I want to block visitors using proxy server to connect my website. We have already blocked some countries where we dont serve indeed to stop hackers & malicious programs. But still we are getting some suspicious visitors using proxy servers.

How do i block these proxy servers?
Blocking proxy server will have any effect on search engine crawling

My Server : Windows 8
Web Server : IIS 7.0
Website : PHP

Thanks
Sarath

bbao

so is there any of your firewall or gateway before your web server running Windows 8 (you mean 2008?)

does the device support web filtering? if yes, you probably no need to buy or set up an additional firewall for filtering accesses via proxy servers.

sarath_nalla

ASKER

Thanks for quick response

Yes Windows 2008...

No firewall..can you recommend one or any way to block with PHP

Thanks
Sarath

David Johnson, CD

If I am using a vpn to connect to your website since you block from my geolocation so now you want to block the vpn (proxy) it will be a never ending process blocking by IP's

sarath_nalla

ASKER

is there anyway to detect VPN and block it?

not with ip

ASKER CERTIFIED SOLUTION

bbao

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robocat

What you need is called a Web Application Firewall or WAF.

This will stop any suspicious traffic and hackers from reaching your webserver, allowing only legit users to reach the webserver.

Read all about it on this page:

https://www.owasp.org/index.php/Web_Application_Firewall