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Questions tagged [cloudflare]

CloudFlare is a content delivery network and distributed domain name server service marketed as improving website performance and speed and providing security.

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Handling DDoS HTTP Attack

I’ve experiencing DDoS attack today and I’ve configured Cloudflare rate limiter, also activated WAF. Cloudflare blocked several hundred thousands request. Unfortunately, my server still experiencing pretty high flood request. I don’t know why it…
Putra
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ddclient with cloudflare not updating

Have a domain registered with Namecheap, using Cloudflare DNS servers. Prior this setup I was just using Namecheaps DNS until realizing I cannot use their production APIs for Traefik. Whilst I had this setup, updating with ddclient to Namecheap…
BitShift
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DNS Records: One IP for Primary Domain and One IP for Multiple Subdomain

I'm using Cloudflare (no proxy) to manage DNS Records. I have two servers with IP: 128.xxx.xxx.xxx 174.xxx.xx.x And these are the DNS Records that I have…
R.M. Reza
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Cloudflare in front of Nginx Reverse - redirect users with certain IP to special page

I'm running a nginx reverse proxy in front of webpage. In front of this nginx reverse proxy is also cloudflare reverse proxy running. Now I'm trying to redirect users with certain ip-addresses to a special webpage. I'm trying to do this from the…
micebutt
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Router forces browser to use older, presumably cached, webfiles

We are trouble shooting website where we deploy a new version but our Computer browser still pulls the older pages. When we disconnect from the router (WiFi) and connect to a hotspot (mobile phone/data), the browser correctly pulls the new pages. If…
puk
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Use Apache remote IP, but require proxy IP to be in range

I put my locally hosted sites behind Cloudflare for an added layer of performance. To restore the original connecting IP, I use mod_remoteip, set up with all of Cloudflare's IP ranges. I also want to set up a site purely for access through…
David Wheatley
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Working domain with no NS records, how is it possible?

I was checking a domain on cloudflare. webroot.bitappii.com There is no NS records for this domain on whois. Only SOA and A records. How this is possible that a working domain has no NS records. Whois only shows webroot.bitappii.com SOA 1800 …
Ruzee Domeon
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POST request is returning ERR_HTTP2_INADEQUATE_TRANSPORT_SECURITY for coporate users

We have a website and an api services on two different subdomains. Both running on Cloudflare. The website that runs on www.example.com, and when the user logs in, there is an XHR POST call to api.example.com/login. Seems like all is working fine,…
grmmph
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IIS 10 - CloudFlare Proxy Reversing (mod_remoteip or mod_cloudflare)

I have a forum running on my website which is using phpBB, but all users on it have a CloudFlare IP. This is not ideal at all and I would like to fix it. After running a Google search and spending about an hour trying to solve the problem, there…
t0rxe
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iptables not working with "x-forwarded-for" (behind Cloudflare)

I have a webserver (Ubuntu with Apache) running behind Cloudflare. I want to block a user using the iptables. Here I want to implement the string match extension of iptables and drop the connection if x-forwarded-for matched. I am adding the rule…
Ajaib Singh
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DNS delegation with BIND and Cloudflare

probably just an ordinary question, but I've been wasting hours on this for months. If you need other logs/output/explanation/etc. just ask :) Thanks in advance! What I need The zone local.example.com shall be managed by a local server…
TheClockTwister
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My web-app works when visited without a www prefixed to its domain, but it returns a 522 error when visited with a www prefix

I am hosting a simple web-app on Cloudflare using pages and a basic DNS configuration for a custom domain name. For privacy sake, call it myapp. When I visit https://myapp.com the web-app works correctly, but when I visit https://www.myapp.com I am…
Eliot
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Apache and letsencrypt ssl | need assistance from cloudflare gurus or experts in ssl

hope you are all staying well and safe. So just to explain my setup which I have always proffered do which worked for me, until now.. I have: Ubuntu server running apache2 for websites Letsencrypt via certbot (installed last week along with fresh…
Jokfil
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Debian 10 MX hostname issue

I am facing an issue where every single site like intodns, dnsstuff, mx toolbox is reporting that i have 2 issues. Namely: Reverse DNS does not contain the hostname Reverse DNS does not match SMTP Banner However, as you can see in my cloudflare…
AlifOpenSrc
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Get origin IP in iptable / ufw

I have a site on Cloudflare. I would like to set up an iptable firewall on the server in addition to Cloudflare, to implement rate limiting (Cloudflare have a paid option ...) Problem: The IP received in IPtable is a Cloudflare IP. How to recover…
Crazy
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