Cloudflare Sorry, you have been blocked

In my normal IP, I can't even access wht, so I use proxy, in proxy I can read wht, but now when I was creating the theme I get:

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x.509 – How does cloudflare negotiate your server certificate?

When I access https://somecompany.com on my company's laptop that has an X509 client certificate installed, using my home internet connection, without using a VPN, the requested page is signed using the root CA of the company (which was distributed to my laptop company through group policies I guess).

When I access https://somecompany.com on my private laptop that doesn't have a client certificate installed, with the same connection, I get access error (403) with a cloudflare logo (the address bar is still https : / /somecompany.com). That error is expected because I don't have a client certificate. Interestingly, the error page is signed by cloudflare's intermediate CA itself.

My question: how does Cloudflare change server certificates during TLS handshake depending on the existence of a client certificate? The server certificate is sent before the client certificate. It's brilliant how all this works, but I don't understand how they managed to implement it.

What seems to make a difference is the TLS version. If I use a browser without TLS 1.3, all content is signed with the Cloudflare certificate, regardless of whether I have a client certificate or not. Is there a certificate renegotiation protocol in 1.3? (I can't find the specifications)

Cloudflare Ports | Web hosting talk

Cloudflare ports

Today I added a domain name with Cloudflare. Now I cannot access the ports through the domain name. Example: www.mydomain.com:10:10

Last edited by uBoAT; Today at 01:28 PM.

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cdn – CloudFlare and authenticated users

I have been playing around with CloudFlare again to see if it is a viable solution for CDN etc. It has been recommended by the CloudFlare (Free Tier) installation instructions to use a subdomain for authenticated users. I've never done this before and can't see anything documented on how to do it.

Has anyone tried to send authenticated users to something like "edit.example.com" when people log in?

Please correct the link in "Update your thread" which arrives at the CloudFlare verification page

For what is worth for those who solve this, I have never had a Cloudflare pop-up captcha on WHT, even when I clicked on the "No thanks" button mentioned above.

Also, WHT has forced HTTPS and I don't see HTTP at all on the thread update page or anywhere else, so I don't understand why you have to add https: // first to start.

http – Remotely poisoning Cloudflare cache servers by James Kettle's web cache poisoning attack?

I am recently exploring and playing with James Kettle's practical web cache poisoning attack. The last part of your post mentioned that cloud poisoning is possible, however, I can't find a way to make it work.

I think the basic idea is CURL a malicious header request to a specific perimeter server by its IP address, however, Cloudflare uses Anycast between its data centers, which means it cannot control which data center it will eventually reach even if cURL to a specific IP address.

I made quite a few attempts at my home, and discovered that no matter what IP address I was going to, I was always directed to the nearest data center around me.

I wonder if I missed something and if it is really possible to remotely poison a data center.

Cloudflare domains? The | Web Hosting Talk

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Cloudflare domains? The | Web Hosting Talk

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  1. Cloudflare domains?

    Does anyone have experience with Cloudflare domains? I use Cloudflare for DNS in all my domains and it's great, it would also be convenient to register domains with them.


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web hosting: should I point my domain to Cloudflare?

I have a couple of simple websites and my configuration has always been like this:

  1. Point my domain registrar to my web host (through name servers)

  2. Direct my web hosting to my email provider (through DNS records)

Recently, I noticed that some people include Cloudflare as an intermediary. So, from my limited understanding, your configuration is then:

  1. Point your domain registrar to Cloudflare (through name servers)

  2. Point Cloudflare to your web and email hosting provider (via DNS records)

What advantages and disadvantages does it entail?

I tried to find it but I searched Google for something like »Cloudflare between registrar and hosting« It didn't help, unfortunately.

I also visited the Cloudflare website, but there are so many services they offer that I quickly stopped trying to find an answer to this question there.

Handles of origin authenticated Cloudflare | Web Hosting Talk

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Handles of origin authenticated Cloudflare | Web Hosting Talk

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var sidebar_width = parseInt (& # 39; 330px & # 39;);
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  1. Cloudflare authenticated origin handles

    Is there a way to configure Cloudflare Authenticated Origin Pulls on a shared / semi-dedicated cPanel hosting account?
    https://support.cloudflare.com/hc/en…cles/204899617


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Cpanel server behind CloudFlare | Web Hosting Talk

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Cpanel server behind CloudFlare | Web Hosting Talk

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  1. Cpanel server behind CloudFlare

    Recently I faced the Ddos attack. My data center did not provide any protection against it, so I had no other options to expect. Very frustrating experience I just wanted to know that if I put my server behind Cloudflare it will affect my clients in some way. I am selling accounts based on Cpanel / WHM through a dedicated server. I am planning to put cloudflare on my server and in the future I would be sharing name servers pointed towards clourflare ips. Will it work well or could I face some kind of problem?

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  2. There are several ways in which the IP of your server can be exposed. Get a provider with DDoS protection like OVH


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