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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Amazon S3 appears to be blocking cloudflare IP addresses. How do I fix it?

I have static content that is being served by Cloudflare. Cloudflare points to Amazon S3 to pick up the static content and serves it via a CNAME (cdn.mydomain.com). The bucket is setup properly and ...
JStark's user avatar
  • 181
4 votes
1 answer
439 views

nginx and cloudlfare ip confusion?

I am using the below config in http block of my nginx.conf to get real ip while using Cloudflare acceleration service: ## Cloudflare settings to get Real IP's set_real_ip_from 204.93.240.0/...
iTech's user avatar
  • 355
3 votes
0 answers
119 views

How to investigate 100% CPU load for 15 minutes on random days

"I have a server that runs a website on Apache2 and is behind Cloudflare. The server's normal load, according to 'htop', is 10%. However, at random days/times, the server load spikes up to 100%, ...
CodePanda's user avatar
  • 141
3 votes
0 answers
6k views

How to I point Cloudflare to my ELB on Amazon?

I'm trying to point Cloudflare to my ELB on Amazon, but haven't found any good information about how to do this. The closest I found is this page: https://support.cloudflare.com/hc/en-us/articles/...
valter's user avatar
  • 689
2 votes
0 answers
78 views

Cloudflare instead of nodebalancer in linode kubernetes cluster

there is a similar question regarding cloudflare as a load balancer for the VPS. But in my case I'm looking for using cloudflare as a nodebalancer replacement for the linode kubernetes cluster. Is ...
Kostanos's user avatar
  • 171
2 votes
0 answers
1k views

Why the download speed becomes slow than before in cloud server (Digital Ocean droplet with Cloudflare CDN)?

A cloud server (Digital Ocean droplet with Cloudflare CDN) runs a Wordpress website that hosts a software download for its visitors. One day, users report that their download only runs with 30kb/s, ...
Zakir Sajib's user avatar
2 votes
0 answers
547 views

How to avoid gmail orange mark and spam filter when using cloudflare proxies?

I send emails from my site via php smtp method connected to 'smtp.gmail.com' on 465, and account added to GSuite. All my emails falls in spam folder in Gmail. The kind of emails is just password ...
Valik Tralik's user avatar
2 votes
1 answer
780 views

Too many open files error on webserver with wordpress site on litespeed server

I am running a wordpress site on a litespeed webserver, caching enabled using the litespeed plugin, with cloudflare as a CDN. Every few days or so, the logs start filling with the below error. Not ...
jberculo's user avatar
  • 123
2 votes
0 answers
1k views

Whitelist or disable rate limit of CloudFlare IPs for AWS EC2

I have two AWS EC2 instance in Sydney, serving sites sitting behind CloudFlare. I'm not using ELB. Over the last week I have started seeing CloudFlare serving 522 Timeout errors fairly regularly. ...
Josh B's user avatar
  • 21
2 votes
3 answers
3k views

Having trouble removing HTTP header "Cache-control"

I'm trying to get my assets cached using Cloudflare Cloudflare states here that "CloudFlare will not cache your site or static content if you have no-cache and private headers coming from your server"...
onassar's user avatar
  • 223
1 vote
0 answers
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Is it possible to put http torrent tracker (XBT) behind cloudflare tunnel

Similar question in this thread Is it possible to put http torrent tracker under CDN to prevent DDOS? basically xbt works on port 7210 (by default) and if I do redirect with tunnel, I lose IP address ...
Theo's user avatar
  • 11
1 vote
1 answer
707 views

Session Continually Times out when Accessing SuperMicro IPMI via Cloudflare Tunnel

I have a SuperMicro X12dpi-N6 motherboard system that is currently running Ubuntu 22.04 Server. In order to support remote maintenance, I configured a cloudflare tunnel that would allow me to access ...
Max Feinberg's user avatar
1 vote
0 answers
120 views

Cloudflare DNS Resolution

DNS newbie here trying to understand the DNS setup for one of our domains. Will call it example.com. So the DNS host is Azure DNS. And there is an A record in Azure that points to a Cloudflare server ...
Calculon's user avatar
1 vote
0 answers
803 views

Windows RDP behind NAT, with Cloudflare Tunnel

My internet connection is behind NAT, which makes it impossible to serve anything outside (security cameras, file servers, ecc) I'm trying CloudFlare Zero Trust Tunnel to bypass it, and it seems to ...
Saturnix's user avatar
  • 111
1 vote
0 answers
83 views

Setting up a proxy pass for rest api server not working

So I am trying to setup proxy pass to a rest api that is on port 30422, basically what I want to do is have for example sub-domain.example.com link to the port 30422 on the same webhost. I am hosting ...
infamous hvher's user avatar
1 vote
0 answers
67 views

NS not propagating after about 9 days

About 9 days ago I migrated my Cloudflare hosted site to StablePoint's cPanel cloud hosting. The last step I took was removing my CloudFlare's NS records and adding StablePoint's in GoDaddy's ...
Charles Yiu's user avatar
1 vote
0 answers
221 views

Cloudflare zero trust application return SSL_ERROR_NO_CYPHER_OVERLAP

I am trying to secure a self-hosted GitLab solution using Cloudflare zero trust. I followed their tutorial but when adding the DNS record I get 'This hostname is not covered by a certificate'. but I ...
hmmmwhatgoingonhere's user avatar
1 vote
0 answers
163 views

TLS 1.0 not supported in Cloudflare

I set the minimum TLS supported to 1.0 however when I check the site using SSLLabs I see that only TLS1.2 and TLS1.3 are only supported. This is a newly created account. We have also another account ...
Alec Jones's user avatar
1 vote
0 answers
2k views

Nginx proxy_pass root to external landing page

For a new domain x.co I am setting up, I want the root (x.co) to show an external landing page without changing the url to that of the external landing page. This landing page has been created on ...
ahron's user avatar
  • 375
1 vote
1 answer
549 views

HTTPS resource record doesn't work for CNAME

My domain is registered with Cloudflare and uses their DNS infrastructure. I'm trying to set up an HTTPS DNS record to signal browsers that my sites can be directly accessed via HTTP/3 and HTTP/2, as ...
bt90's user avatar
  • 11
1 vote
0 answers
267 views

TCP handshake not completing intermittently to specific Cloudflare node

I have setup a webpage with Cloudflare that works nearly all of the time, except occasionally the TCP handshake fails with the SYN+ACK not making it to Cloudflare. On a packet capture from another ...
Erik Johnson's user avatar
1 vote
0 answers
776 views

How to connect cloudflare argo tunnel to wordpress

What I want to achieve I want to use cloudflared daemon so that I can use cloudflare argo tunnel and connect the argo tunnel to my wordpress website so that I can protect the origin and see if there ...
Om Naidu's user avatar
1 vote
0 answers
27 views

Application role in preventing DDOS

I have an application that is being planned to be exposed to internet clients via a reverse proxy deployed in the DMZ, . I have recommended that the deployments use WAF/Cloudflare along with this to ...
computinglife's user avatar
1 vote
0 answers
480 views

Is it possible to conditionally set RemoteIPHeader?

I am using Cloudflare to manage DNS in a staging setup and often switch between "DNS only" and "Proxied" states. I have Apache listening on port 443 which terminates the ssl and ...
Tome A's user avatar
  • 11
1 vote
0 answers
343 views

Cloudflare blocks our "between subdomains" url rewrites with a 403 due to X-ORIGINAL-URL header(CVE-2018-14773)

Question: How to remove the X-ORIGINAL-URL header in Azure ARR? Cloudflare blocks our "between subdomains" url rewrites with a 403 due to X-ORIGINAL-URL header (CVE-2018-14773). We are using ...
user14142426's user avatar
1 vote
0 answers
307 views

Ingress not working with cloudflare proxy option

I have cloudflare on it added A record of haproxy loadbalancer, behind loadbalancer are worker nodes of kubernetes cluster and ingress controller. Ingress routing traffic good when proxy option on ...
Vladimir Djukic's user avatar
1 vote
0 answers
103 views

Installed CloudFlare Origin Certificates on Apache Server but certificate cannot be trusted

Installed an Origin Certificates on Apache Server but certificate cannot be trusted when I visit the domain. The certificate path says CloudFlare Origin Certificate. and the Certificate status says ...
user2819330's user avatar
1 vote
0 answers
142 views

Issued a cloudflare SSL Certificate to ubuntu server but SSL gives error

I was given a Cloudflare SSL certificate issued by our DNS provider. As the server already has let's encrypt, the domain I had to add is loaded the Cloudflare SSL (when I visit the site I have CERT ...
user2819330's user avatar
1 vote
0 answers
430 views

ddclient Returns 7000 Error Connecting to Cloudflare

I am setting up DDNS using ddclient. I have searched the web, and nothing seems to help. I looked up examples, and I don't see what's going wrong. I tried using both api.cloudflare.com/client/v4 and ...
ARI FISHER's user avatar
1 vote
2 answers
276 views

CNAME is not acting as an Alias on Cloudflare

I would like to display the same content of: example.com if someone visits example.net I researched and it seems to be possible by simply setting up a CNAME record on example.net that is pointing to ...
Radical_Activity's user avatar
1 vote
1 answer
1k views

Conditional String Htaccess

I need to validate that an environment variable exists and that the value is equal to "cloudflare", in case there is no deny access. I have done multiple tests, and I have not been able to make it ...
SolucionTi's user avatar
1 vote
0 answers
514 views

let's encrypt installed, but with cloudflare, browser throws SSL error

I've installed certbot, and run to create certificates with cloudflare global api key: certbot certonly --dns-cloudflare --dns-cloudflare-credentials /root/.secrets/cloudflare.ini -d "mydomain.com" -...
Roland's user avatar
  • 11
1 vote
2 answers
1k views

How to host CloudFlare DNS subdomain at different IP

I'm using CloudFlare for DNS and Digital Ocean for servers. Let's call my website "example.com". It has been working fine. I've now created a second server, which has a different IP. I want a new ...
Ryan's user avatar
  • 109
1 vote
1 answer
321 views

Creating a subdomain that points to another server from cloudflare

Sorry, I'm new at this but here is my problem: We've got a domain with godaddy the dns is with cloudflare and the site is on herokuapp. I need to create a subdomain for the domain which points to a ...
user535681's user avatar
1 vote
0 answers
2k views

How to set up Cloudflare, Custom Domain, SSL, and Elastic Beanstalk without a Load Balancer

Background & Research I am currently in the process of polishing off the infrastructure for a project of mine and I have realised that I have a slight issue when it comes to the SSL certificate ...
Ben Carey's user avatar
  • 164
1 vote
1 answer
167 views

Should the CNAME reference the repo when hosting multiple sites with Github Pages under one username?

I'm running into an issue with a new site I just launched for a private repo but one site works and the other generates a 522 so I'm wondering if it's due to my CNAME. Here's a list of what I've done. ...
Gʀɪᴍ's user avatar
  • 111
1 vote
0 answers
71 views

How to get nearest DNS server throw CloudFlare?

My website is hosted in Vietnam, I can see tons of servers which CloudFlare (CF) support in Asia such as Hangzhou, China, Hanoi, Vietnam, Hengyang, China, Ho Chi Minh City, Vietnam… But when I send ...
Viet Nguyen's user avatar
1 vote
0 answers
136 views

CNAME SSL Redirect Setup with Cloudflare

I’m hosting two subdomains with two (non-wildcard) Let’s Encrypt certificates outside of cloudflare: name.feed.example.com name.example.com I have a CNAME alias on Cloudflare (free plan) pointing ...
Mesut Kaya's user avatar
1 vote
0 answers
47 views

Apache2 stopped but still showing 500 error on some browsers

So I'm having an issue where a domain renders properly in one browser, but not in another. In this example, Chrome 74 loads the site fine, but Chrome 76 ends up rendering a 500 error. Here is the ...
jrothafer's user avatar
  • 123
1 vote
1 answer
790 views

proxy_pass a domain that is protected with cloudflare

Hello I wondered if it is possible to proxy_pass a domain that is protected with cloudflare in nginx? I tried the following: location / { proxy_pass https://domainthatisprotectedwithcloudflare.net; }...
Ashrat Mughdi's user avatar
1 vote
0 answers
414 views

Domain mirrors my site using CloudFlare NS

I've noticed that a site that uses Cloudflare DNS is mirroring my website. I've tried blocking the IP in Apache, CSF/Iptables...no luck. I'm not familiar with Cloudflare but digging more I've found ...
vexx's user avatar
  • 11
1 vote
1 answer
727 views

ERR_SSL_VERSION_OR_CIPHER_MISMATCH with Cloudflare

I have problem with redirect my website with www to non-www. I use Cloudflare. When I redirect traffic https://www.pl.make4u.eu/ to https://pl.make4u.eu/ website I get ...
Paul's user avatar
  • 11
1 vote
0 answers
2k views

Why does app engine return a 404 error on my wildcard subdomain?

I have set up a wildcard subdomain for our project custom domain in app engine. The DNS CNAME has also been updated with the wildcard record. Our nameservers are with Cloudflare which supports ...
bosst's user avatar
  • 11
1 vote
1 answer
2k views

Traefik + k8s + Let's Encrypt wildcard SSL + Cloudflare issue

I'm trying to set-up a reverse proxy with wildcard SSL using Traefik, with a DNS challenge against a Cloudflare zone. I have this config in k8s: kind: ConfigMap apiVersion: v1 metadata: name: ...
Lee Benson's user avatar
1 vote
0 answers
904 views

Protonmail custom domain not receiving icloud mail

I am trying to setup Protonmail with my custom domain (thekeenprogrammer.com) The problem is, I can only seem to receive mail from my gmail account and not iCloud. What could be causing the issue and ...
iProgram's user avatar
  • 119
1 vote
0 answers
95 views

Gitlab - routing LFS traffic through LAN

Gitlab (10.2.1) running on a local server (ubuntu 16.04). Goal is to grant remote contractors public access (https://gitlab.example.com) while those on premises route through lan for best performance (...
Peter Cardwell-Gardner's user avatar
1 vote
1 answer
939 views

How to tell Cloudflare to cache your homepage (without file extension)

Cloudflare caches files with extension html for static content. But when visiting the root of a website, eg http://foo.com there is no extension specified, thus this page is not cached as static html. ...
bart's user avatar
  • 171
1 vote
1 answer
181 views

Serving GitHub Pages site with custom domain name via Cloudflare

http://appleseedhq.net/ is a GitHub Pages site hosted at https://appleseedhq.github.io/. I'm following Cloudflare's tutorial to enable HTTPS at https://appleseedhq.net/: https://blog.cloudflare.com/...
François Beaune's user avatar
1 vote
1 answer
337 views

Cloudflare and 1and1 : SSL Redirect not loading the UI

I currently have my online store via 1and1(where I bought the domain) and our backend is hosted @ Linux cloud server using Nginx. We are using basic version of Cloudflare as frontend. Now when we ...
Satu's user avatar
  • 111
1 vote
0 answers
234 views

Restore original visitor IP for static site on AWS S3 using Cloudflare

I've a static site on S3, with cloudflare as my DNS provider. The server logs are collected in an S3 bucket. However the visitor IP address in the log files points to cloudflare servers instead of the ...
user's user avatar
  • 111

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