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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Blocking requests via Cloudflare at the firewall (not web server) level

The broad context here is that I wish for the firewall (pf) to be able to ban certain IP's from accessing the website. I first restore the origin IP in the web-server (Nginx) logs. Then I use ...
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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, ...
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My GitHub Pages website went viral. 120k page views in 24h. Where do I go from here?

So I built nesteggly.com. Literally an MVP I cooked up over the past couple of months to help my girlfriend plan her retirement. Being a 100% static website and not thinking many people would find it ...
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Can cloudflare redirect redirect a domain based on the incoming IPs?

Is it possible (for example with Edge Worker) to redirect users to different websites when they reach a domain from different IP addresses? e.g. Let's say I have a domain called myproject.jobs. If a ...
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Error 502 Bad Gateway with Cloudflare and DigitalOcean server with Name.com registrar. My site doesn't work

I did some changes in configurations in these hours. Site still doesn't work. My current configuration is: Name.com: I put there the Cloudflare nameservers. DigitalOcean panel: I made that the ...
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Is it worth to use Cloudflare with Mod_Pagespeed?

I'm running LEMP stack. (Ubuntu 18.04, Nginx 1.17.10, MySQL and PHP7.4). This server uses FastCGI cache and installed the Mod_PageSpeed and run 4 Wordpress sites. Apart from that, my sites use ...
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How can Cloudflare hide my server's IP but still directs to the server

May be it is an extremely dummy question, but I don't understand how it works. When my domain is under Cloudflare service (I set up cloudflare namespaces in domain hosting panel) I can change any DNS ...
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24 views

Correctly point DNS to subdomain from cloudflare to cpanel server? [closed]

I have a CPANEL server hosting some websites and webmails, a couple of days ago I was asked to add SSL security to this websites and decided to use cloud flare to do this. So I added the domain in ...
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nginx proxy_pass upstream TLS protocols not preferring higher version

I'm attempting to proxy_pass to a backend and nginx will not use TLSv1.3 and always uses TLSv1.2 instead, unless I only add TLSv1.3 in the proxy_ssl_protocols directive. The problem with this ...
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Cloudflare stops website working as it is enabled

My website is usign Cloudflare to manage its DNS records. I've installed SSL using LetsEncrypt on my website and everything works well when Cloudflare is disabled. As I enable Cloudflare, my website ...
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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 ...
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AWS cost explosion with “first 10 TB / month data transfer out beyond the global free tier”

Our costs have really exploded at AWS for a simple EC2 Wordpress installation (and MySQL RDS service) for bandwidth cost. It is listed on the AWS Bill as: first 10 TB / month data transfer out beyond ...
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221 views

website not loading the updated css files

I have been using cloudflare for almost all of my projects and i've been trying to set it up for my new project but there is a really strange problem i'm facing. so when i update .css files from the ...
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49 views

Unknown PTR record in DNS; it’s not there in Cloudflare DNS Settings [closed]

(1.) There is an extra, unwanted, unexpected, unadded PTR record in my DNS settings, with value set to the Domain Name "mediati.net". You can see it here in MxToolbox Reverse Lookup: MxToolbox shows ...
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Caching alternatives for https [closed]

I've been using varnish reverse proxy for a few websites and it's a great alternative. However it supports only http and now that the sites want to implement https I don't have another alternative. ...
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29 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 ...
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/dev/mapper/vg-root is eating all my hdd space [duplicate]

# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 16G 0 16G 0% /dev tmpfs 16G 0 16G 0% /dev/shm tmpfs 16G 202M 16G ...
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How to provide http to a legacy application

Is there a way to filter out an url with cloudflare, and answer it with a static http content? My hosting solution does not allow http, and forwards all to https. One somewhat expensive solution ...
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55 views

Cloudflare 522 error while proxied, not on DNS only

I have set up cloudflare to access my website. I am forwarding port 443 to a server from a Mikrotik router to an Ubuntu server running NGINX. It works fine with DNS only. It gives a 522 when switching ...
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40 views

Tomcat with IIS behind Cloudflare reverse proxy unable to connect

I'm running Tomcat 9 with IIS 10 using AJP13 by following this guide. Everything works as long as it's not proxied through Cloudflare. However, once I proxy it, I'm getting the following error in the ...
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45 views

fail2ban fails to send banned IPs to Cloudflare

I am running a WordPress site on a CentOS 7 server. I have fail2ban installed and working, and have verified that it is adding IPs to iptables. I just added Cloudflare to the site, and now I'm trying ...
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78 views

iptables not blocking IP from access to HTTP/HTTPS

I'm having issues blocking certain IP addresses access to HTTP/HTTPS ports via iptables on my CentOS 7.7 webserver. The problem is when I add the IP address to iptables, and confirm it is in the ...
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173 views

DigitalOcean Droplet and Managed Database with Load Balancer - DDOS Protection

I'll first start off by saying I'm no sysadmin or by any means knowledgable on servers, I'm just a developer tasked with a job of setting up the infrastructure for a SaaS application I'm working on, ...
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CloudFlare apache2 only allow visitor ip, deny all others

I want to allow only known IP addresses. My site is behind cloudflare. On their website I've done the steps to know the real IP address of the visitor: Installing mod-remoteip But that's only how to ...
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33 views

How can I tell if my DNS A record has updated successfully?

I migrated a site from one host to another host. The records are held with Cloudflare. I changed the IP address from the old IP address to the new one in the A record. When I use a tool such as ...
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382 views

Nginx Nextcloud too many redirects

I am trying to install Nextcloud on my Raspberry Pi. I have created an A record in Cloudflare with subdomain pointing to my Raspberry Pi IP address and configured the NGINX with certbot using the ...
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Debian CT suffers high TTFB inconsistently with LEMP

I have my own router and my own hardware and am responsible for my own networking. My HTTP frontend is on Debian 10 in an LXC container on Proxmox. My largest site's web frontend suffers extremely ...
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530 views

Can cloudflare cause /etc/hosts entries to be ignored? [closed]

I've frequently used /etc/hosts to hop back and forth between servers for a domain and also to test if it's serving correctly before a deployment. However, in this latest case I've used cloudflare ...
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80 views

Is there a way to craft a Cloudflare API token such that it can only edit a specific *sub*domain's records?

I'm hoping to use Let's Encrypt for several domains and subdomains and my company. In lieu of buying a long lasting wild card cert that is installed on every machine, the goal is to use short lived ...
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87 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 ...
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Issue with Apache Workers and Cloudflare

I am running an Apache Server with this config: 64GB RAM, 4x480GB SSD, Dual 12 cores @ 2.1 GHz Apache settings keepalivetimeout: 5 loglevel: warn maxclients: 2000 serverlimit: 2000 ...
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Cloudflare refuses to serve site after transferring domain from one Cloudflare account to another

I have several domains in a Cloudflare account and they work well. Today I attempted to transfer them to another newly created Cloudflare account. I did this following the instructions here. As soon ...
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206 views

How do CNAME Flattening, ANAME or ALIAS records work? [closed]

I found explanations by Cloudflare and DNS Made Easy quite vague on the implementation of these records - it was something about IP address caching. Do those records only retrieve A and AAAA records ...
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44 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 ...
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1answer
376 views

Putting google cloud platform (cloud run) behind cloud flare

I have an app in google cloud run. I have connected my domain and added the cname: ghs.googlehosted.com. my DNS and domain service is in cloud flare. If the SSL is Full or Full strict I am getting ...
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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" -...
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32 views

Internal DNS issue

Our internal network has been setup with the same domain as our external website. We currently point a www record at the server IP (acquia) - this works but means we don’t get cloudflare’s ...
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1answer
30 views

Why is my Hosts file not loading the website on Google Cloud Hosting?

We have setup Google Cloud Hosting (GCH) to trial our website on there. An old domain was used and setup with Wordpress on GCH. that works fine. The domain is SSL and runs. So we did a full ...
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83 views

Latency volatility

I use Google Stackdriver Uptime Check on two websites. One of the sites shows a very steady latency graph, whereas the other site's latency graph is constantly spiking up and down. The site that is ...
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55 views

Downside to using *.herokuapp.com domain?

I need to point thousands of TLDs to the same Rails app hosted in Heroku. So far I have automated the process of adding domains to CloudFlare and Heroku, but SSL has proven to be a challenge. Heroku ...
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1answer
38 views

Install a certificate on a web server

This is a noob question, I know. I have a web server on an Ubuntu 16.04. I'd like to install a certificate on it so that I can secure it using Cloudflare SSL. Everything I've found online has web ...
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653 views

Hide subdomains from scan tools

How can I hide the subdomains list from scan tools like dnsdumpster? I have some subdomains, where I keep dev versions of my projects. I need to be sure that nobody can know about subdomains.
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26 views

Multi Level subdomain redirecting to root domain

Trying to separate my internal and external API's, but for some reason when I do a multi tier subdomain it is just redirecting back to the root domain. I have the following nginx block set up: server ...
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27 views

NGINX + SSL forwarding my domain1.com to domain2.com on my server

This is driving me nuts. I have 6 websites on the server, but for some odd reason my domain1.com is being forwarded to domain2.com. In the URL bar it still shows domain1.com while serving the domain2....
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63 views

Cloudflare Load Balancer to AWS Application Load Balancer to Spring Cloud Gateway

I'm trying to build a pretty large microservices infrastructure with Amazon, Spring Cloud Gateway and Eureka. I am wondering, would it be something well done if we get Cloudflare Load Balancer to ...
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178 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 ...
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141 views

Forward Route53 to another DNS provider

I have many customer websites set up using Route53 as the DNS provider. I've switched over to using CloudFlare DNS for newer websites and would like to migrate these older sites over to the same DNS ...
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28 views

apache reverse proxy for medium.com/xyz blog

why is it not possible to set up an apache reverse proxy for such medium.com/xyz blog website? If I try to replace the http://medium.com/xyz/ links with / everything seems to work - the sniffs shows ...
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232 views

Set up https/SSL certificate for private Gitlab instance without custom domain [duplicate]

I set up my private Gitlab server. It works fine and when I enter my IP I can access it. I do not have a custom domain and I also do not want one since I don't want to make the server accessible from ...
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30 views

Docker swarm and cloudflare dns

I have a docker-swarm set up in digital ocean. For now there's only 1 master node but more will be added soon. I use cloudflare dns for this one, and provided the master node's IP as A record IP. It ...

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