CloudFlare is a content delivery network and distributed domain name server service marketed as improving website performance and speed and providing security.
Questions tagged [cloudflare]
567 questions
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Can CDN caching prevent DoS attacks?
Let's say I use Cloudflare to cache my images, CSS, and JS files. Requests for the HTML content itself still hit my server and an attacker could use that to his advantage.
However, if I tell Cloudflare to cache HTML as well, would a DoS attack be…
dodov
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Cloudflare + Apache + CSP Headers: Old CSP headers are returned
We are using apache2 on our server, which is behind cloudflare (free plan).
I am currently implementing googles recaptcha, which requires me to make changes to our CSP headers.
What I did:
Change CSP in Apache
Run apachectl configtest - all…
Felix Hagspiel
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Cloudflare CF-IPCountry header wrong with reverse proxy
my website use cloudflare. It has two parts:
1 - api, made with php
2 - frontend, nuxt js reverse proxy
I use Cloudflare's "CF-IPCountry" header in order to detect the client country code.
If I access directly to my api from the web browser, the…
lengas
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How can I run a TraceRt as if I were at another IP address?
I'm trying test whether my hosting company is blocking traffic from certain IP addresses*.
I'd like to confirm that by running a TraceRt between the Cloudflare server IP and our server's IP address.
*Background
I"m using CloudFlare and they are…
Clay Nichols
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Is it possible to block or allow SSH connections to a server on Cloudflare
I want to restrict SSH connections to my server to a country only. I tried GeoIP and Ipfilter without success (Location of authpriv.notice logs on Bitnami). Another solution would be to configure a rule on Cloudflare, which is the DNS for my server,…
miguelmorin
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TLS error using Cockpit with Cloudflare/Portzilla
I've recently installed cockpit (and quite like it) and decided to use Portzilla on my cloudflare account to set up a subdomain where I can access my cockpit server remotely. I've been getting Connection Failed errors, and when I look at journalctl…
dnglchlk
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Design for Providing custom CNAMEs using Cloudflare and Lets Encrypt
Currently we have a cloud based SaaS application, that runs behind a domain on Cloudflare. Let's say example.com.
The main panel and application is located at cloud.example.com. When a customer signs up, they are allowed to choose a subdomain where…
Mark Barrett
- 101
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What is the best way to handle DNS and failover management for a subdomain website when I don't have control of the domain?
Updating DNS for this subdomain would take hours or days, but we'd like to be able to set up a reliable auto-failover mechanism that I think would require faster DNS changes. What is best practice for this type of arrangement?
libbynotzoey
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Is it possible to make reverse dns lookup on cloudflare
Somehow Cloudflare is hiding the real ip of my server. Is there a possibility to check other domains on my ip by reverse DNS?
in short I make
dig some-server-name.com
I got in reply some A records...but they are not actually my server ip's
than I…
adeptofvoltron
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Reverse DNS does not contain the hostname and RDNS_NONE from spam assasing
So i am trying to setup the reverse dns for my server and i got it mapping correctly to my mail domain and i did a test on mail-test but reverse dns failed with: Spam Assasin RDNS_NONE, but on mail authentication bellow shows is correctly…
Mov Eax
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Cloudflare 522, 525 connection timed out
My website keeps giving 522 connection timeout error. we contacted the cloudflare support team and found that there are some packet loss. because of which we are getting this error.
Can you please help me how can we resolve the packet loss issue and…
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1 answer
https not working for aws load balancer, also cloudflare cname for @ is not working but anything else works
I have a ec2 instance with a loadbalancer. The loadbalancer has an issued ssl certificate, it says it's active. I will post screenshots of all my settings. The site works on http just fine. Just not sure how to debug at this point, I have got https…
Anders Kitson
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How to use Cloudflare's CDN while we can not change nameservers on WIX
We have a website on WIX (www.example.com). The domain name and name servers are all on WIX. Using the same domain name we have another website (buy.example.com) which is NOT on WIX. The "A record" of both "WWW" and "BUY" are set on WIX's DNS.…
Ray Yen
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Apache2 / Cloudflare Error 521
My apache2 server encountered a error: "502 Bad Gateway".
I started using ExpressJS and this happened.
Im doing this because I need to use pug and other backend utilities.
Here is my apache2 configuration:
# The ServerName…
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How to check AWS cloudfront traffic limit? 504 server error
I have a website that handles ticket selling which opens once a year. Many peoples come to the website at a specific date and time. However, some users received 504 Status Code (Gateway Timeout) from AWS CloudFront .Some users can still register…
Muffin
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