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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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
2 votes
1 answer
3k views

IPv6 only server through Cloudflare gateway

In the past, one could use an IPv6 server through sixxs.net gateway. Now the service is gone. However, I found there is a free Cloudflare gateway. I assume the IPv6 server is to be associated to a ...
antonio's user avatar
  • 253
0 votes
0 answers
3k views

Nginx file upload does not work

I have a server running nginx and php-fpm and I am having issues with uploading files bigger than a few hundred kbytes. Small files are just fine, but anything above 2-300 kbytes start to upload, then ...
nXu's user avatar
  • 101
1 vote
4 answers
987 views

Upgrade Nginx behind cloudflare to http2. To do or not?

I am running nginx version: 1.12.1 behind a CloudFlare machine. The CloudFlare front is http2 enabled. I was wondering if it’s a good idea to upgrade to Nginx 1.9.5 that supports http2 ?. The cost ...
Quintin Par's user avatar
  • 4,443
0 votes
1 answer
502 views

bind9 on server locally for mail ptr record with cloudflare as name servers

I am using cloudflare's name servers for example.com with a cname for www - these are filtered through cloudflare. In cloudflare, I have an mx record pointing to mail.example.com and a mail A record ...
asdfqwerzxcv's user avatar
0 votes
1 answer
230 views

Cloudflare IP range error

I need to whitelist an IP ranges 91.232.230.0/23 and 79.142.16.0/20 on CloudFlare. If I enter these IP ranges I get the error: An IP range (CIDR) must be a /16 or /24 How can I whitelist these? I've ...
Linda Rigas's user avatar
0 votes
3 answers
2k views

nginx hotlinking prevention with cloudflare

I want to prevent hotlingking in my site. However I also have cloudflare to serve my site. I don't want to use cloudflare hotlinking protection feature as it cannot exclude external domain that I ...
dev-jim's user avatar
  • 313
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
0 votes
1 answer
344 views

How to setup Cloudflare when I don't have authority over the parent domain?

I'm new to cloudflare and have a handful of web servers I'd like to run through it: (I'd ask this on cloudflare's forum but I corrected a typo in my email address for the free cloudflare service and ...
Server Fault's user avatar
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-4 votes
1 answer
149 views

Nameservers with CloudFlare [closed]

I want to make a hosting service but I don't want to expose my IP address. So, I set my account up at cloudflare and setup the DNS records on cloudflare and set my host up. But now, I can't seem to ...
Min Gu Kang's user avatar
2 votes
2 answers
5k views

Nginx Rate Limiting With CloudFlare

I want to have a Rate Limiting code with the following options: I'm using CloudFlare, so I want it to look for the real IP address. I want to have a whitelist option I want to make a file with a list ...
HTMHell's user avatar
  • 183
0 votes
0 answers
154 views

My Cloudflare-connected website is not updating

I have a website hosted via ByetHost and the site is connected to Cloudflare, I want to update the site after a month of publishing. When i uploaded the updated HTML files via Filezilla, the site ...
sodaddict's user avatar
6 votes
3 answers
5k views

Domain Ownership error. No CNAME records were found. Please add a CNAME record pointing to myapp.azurewebsites.net

I am trying to set up the urls https://www.mywebsite.net.au and https://mywebsite.net.au to work for my Azure App Service using with Cloudflare. Where mywebsite represents my web site name. ...
Kirsten's user avatar
  • 185
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
0 votes
1 answer
324 views

Site only accessible through Chrome and curl

I'm trying to serve a static website from an EC2 instance using nginx. I'm also using Cloudflare as a CDN and DNS. The A record points to my instance's public IP while there's also a CNAME for www ...
Raphael's user avatar
  • 103
-1 votes
1 answer
238 views

Simple DNS Modifications, Directing to CDN [duplicate]

I'm reading through this guide which is quite thorough and helpful, but I've come across one paragraph that's stumping me. For your root domain, you'll change its A record to point to one of the ...
qarthandso's user avatar
0 votes
1 answer
790 views

Cloudflare -> EC2 -> EC2 522 Errorr

I'm having an issue where Cloudflare is pointing at an EC2 instance through SSL and it's redirecting traffic to another EC2 instance through HTTP. It's been working properly until yesterday where ...
nnbz's user avatar
  • 1
0 votes
2 answers
782 views

SMTP and Cloudflare origin disclosure

Can origin IP be disclosed if an email message is sent over SMTP (exim4) from the server to a user email IF Received header is cut off? Are there any other SMTP headers (or something) that may expose ...
Schneefall's user avatar
3 votes
1 answer
7k views

getting ERR_SSL_VERSION_OR_CIPHER_MISMATCH on nginx webserver via cloudflare

I have a docker infrastructure consisting of 1 nginx reverse proxy 1 nginx web server 1 php7.0 fpm server both the nginx reverse proxy and webserver are using the same docker image but just loaded ...
user618509's user avatar
-1 votes
1 answer
4k views

Letsencrypt + Cloudflare setup

I work on many side projects and try to set up https for each one. Since I can't afford to pay for certs, I use Letsencrypt. I also use Cloudflare in case I get traffic spikes. I start with getting an ...
byl83's user avatar
  • 99
2 votes
1 answer
1k views

Route 53 as backup to Cloudflare DNS

I use cloudflare as my main DNS provider right now but am looking to add route 53 as another provider/backup in case one or the other goes down. (DYN did this last year and it caused a headache with ...
Chris Muench's user avatar
6 votes
1 answer
13k views

Cloudflare + AWS route 53 combined to handle records

I bought my domain from Godaddy, I use cloudflare for most of my services, so i added the nameserver to my godaddy domain configuration. So lets say I have api.mydomain.com firmware.mydomain.com ...
John's user avatar
  • 301
1 vote
1 answer
4k views

Error 521 Cloudflare with HTTPS while HTTP works

I am experienced issues when it comes to loading using HTTPS:// using CloudFlare. The issue is that it gives me a code ERROR 521 web server is down or it took to long to respond. I have double ...
Gabe John's user avatar
0 votes
1 answer
173 views

.de domain resolving to wrong server with CloudFlare

My site, attacktheblock-film.de, is currently showing a Minecraft page (see yadi.sk/i/56w_DCEC3H7S9m ), which is 104.24.121.19 . The correct server is 167.114.172.148 . The domain is using ...
Username2017's user avatar
0 votes
1 answer
2k views

nginx too many redirects (cloudflare and https)

Hello and thanks for the help. I've searched and found similar issues, but not what I'm experiencing. I'm getting "Too many redirects" when trying to configure nginx to serve my app. This is the :80 ...
Pablo De Sogos's user avatar
6 votes
3 answers
14k views

Is it possible for CloudFlare to get content from 8080 and serve it on 80?

Is it possible for CloudFlare to get content my server provides over port 8080 and serve it on port 80 to users? For instance, I have the following IP address 0.0.0.0 and domain example.ga (...
Theo's user avatar
  • 71
0 votes
1 answer
231 views

Cloudflare data privacy and policy?

I am concern about cloudflare data privacy policy. On their site, it says Cloudflare may aggregate data we acquire about our users and the visitors to their websites. For example, we may ...
tipsywacky's user avatar
0 votes
1 answer
2k views

Nginx config keeps throwing a redirect loop while trying to redirect www to non www and to https

I'm trying to re-direct all www requests to my domain to the non www url and everything to https at the same time. Here's my nginx configuration: server { listen 80; server_name example.com ...
THpubs's user avatar
  • 1,775
0 votes
1 answer
414 views

Cloudflare + Amazon Web Server (wordpress) + Bitnami

I'm having trouble converting my website from http//: to Https://. I'm currently running Amazon Web Server with route 53 with Bitnami on my wordpress site. I changed the DNS records on my domain site ...
Vincent Nguyen's user avatar
2 votes
3 answers
4k views

How do I tell if a site is using CloudFlare reverse proxy services?

I'm investigating the impact of the leak of CloudFlare payload data due to a parser bug on services that we use. It's relatively easy to tell if a service is directing traffic to CloudFlare via DNS: ...
rakslice's user avatar
  • 493
0 votes
1 answer
2k views

How to use Cloudflare CNAME to have a unified DMARC policy?

According to DMARC FAQ it's possible to have a single policy for multiple domains, and that all tools refer to this main policy: How can I put DMARC records on many domains at once? Some ...
Braiam's user avatar
  • 642
1 vote
1 answer
1k views

Moving away from cloudflare

I set up cloudflare for a domain a few weeks ago as a stopgap to have TLS. I now want to move this domain to AWS and Route 53. The domain has been added to Route 53, but I'm not sure how to change ...
beta's user avatar
  • 115
-1 votes
1 answer
1k views

How to reroute a DDoS attack to the attacker?

I would like to know if there is a way to block and reroute a DDoS attack I'm receiving on my website to the attacker website (I know the address of it). If so, how can I do that? I'm using ...
step's user avatar
  • 1
1 vote
3 answers
2k views

website stuck in redirect loop after using behind cloudflare

my website https://stage.issufy.com/ , after setting up ssl, i get 302 redirect loop. Here is htaccess file <IfModule mod_rewrite.c> <IfModule mod_negotiation.c> Options -...
Farhan's user avatar
  • 4,309
1 vote
2 answers
368 views

Nginx: Redirect https://www.domain.tld/target to https://nocache.domain.tld/destination

I have a Cloudflare/Nginx(v1.8.0)/Apache server config with lots of caching. Goal is to cache the main domain but allow access to a site via a subdomain on which all caching is bypassed. So, I'm ...
Narayan's user avatar
  • 11
0 votes
1 answer
49 views

Unusual requests on Apache2

I am developing an eBay-like system in PHP only to accept Bitcoin as the only payment method. For this purpose I've set up a virtual machine on my computer because I don't want to be paying for ...
Tadej Gašparovič's user avatar
-1 votes
1 answer
116 views

ip site digitalocean to cloudflare

I have site with just an ip address instead a domain name Is it possible my site use cloudflare service? My site hosted at digitalocean My server use nginx I've been searching through the net but ...
adriàn's user avatar
-1 votes
1 answer
973 views

CloudFlare SSL Full Nginx Puma Rails

I have a rails app with force_ssl turned on. I generated DH params I'm using Puma as web server. For this configuration, I'm fine with a self-assigned ssl cert, which I generated together with a key ...
Ben's user avatar
  • 111
0 votes
1 answer
1k views

Cloudflare not working with Windows firewall

Many HTTP requests to my server fail with 524 (Origin time-out). The resources that fail to be delivered are not always the same. Sometimes they work, and the next request they don't. I whitelisted ...
user764754's user avatar
0 votes
0 answers
114 views

Why alot of netstat poiting to external url

Our server was almost like being DDOS. When doing netstat -a , I saw something that I cannot understand (maybe due to my very limited knowledge) root@NC-PH-0456-19:~# netstat -a Active ...
Phung D. An's user avatar
1 vote
1 answer
797 views

How instant are Heroku IP changes with Cloudflare CNAME flattening compared to regular CNAMEs? How likely to happen?

I'm considering Cloudflare's CNAME flattening that allows a rough equivalent of CNAMEs on apex domains. My impression of that article is that anyone who queries them sees it as an A record (with a 5 ...
Henrik N's user avatar
  • 113
1 vote
1 answer
562 views

Wildcard Cloudflare and trusted certificate

I would like use my website in ssl only but with cloudflare all my subdomain are not trusted (i think because is not in "cloudflare" DNS ( record by orange clouding)). If i add manually subdomain ...
Shinix's user avatar
  • 31
0 votes
2 answers
207 views

How to map external subdomain to my subdomain?

My company develops marketing reporting application and one of the requirements is that each user gets new subdomain created for their dashboard (e.g client.application.com). Once it's made, they ...
dzhi's user avatar
  • 830
1 vote
1 answer
2k views

How to whitelist headers in IIS filtering?

We're looking at deploying CloudFlare as a WAF for our site. One of the requirements is that we restrict access to the site from outside North America. Fortunately, CloudFlare supports GeoLocation, ...
Mike Caron's user avatar
1 vote
2 answers
912 views

CloudFlare SSL redirection loops

We have installed on one server a regular web-site (http://example.com) and web-mail (https://example.com/mail), Debian, Joomla, NGINX, iRedMail. For protection from DDoS we use CloudFlare in free ...
Someone's user avatar
  • 169
2 votes
1 answer
2k views

nginx redirect without port

I have an issue with 301 redirects in Nginx. It always redirects to a URL with it's local port. Situation is as follows: Site is running through Cloudflare, full https. CF sends http requests to the ...
Magio's user avatar
  • 21
0 votes
2 answers
151 views

Server is currently under massive DDoS

Over the past few days, been having a number of problems that I can only describe as a massive DDoS attack one a CENTOS VPS server that is only hosting one website. The website is really slow but not ...
Phorce's user avatar
  • 101
0 votes
0 answers
276 views

Apache Bad Request through Cloudflare 2053 SSL port

I have CloudFlare serving traffic on port 443, connecting to my vHost on port 2053. The connection to CloudFlare succeeds, but the server sends a 400 response. The idea of this port is to serve a ...
Nex's user avatar
  • 1
1 vote
1 answer
2k views

How to add Mx record from same server to cloudflare?

My email is hosted on same server where hosting is registered. But i want to add mx record from same server(ip) . Cloudflare showing me this message. The record is exposing your origin server's Ip ...
Debar's user avatar
  • 11
-1 votes
1 answer
229 views

Why does my nserver fail on uptime.com checking?

I've just tried my site via uptime.com and get the following: My site is hosted on my own server, but through CloudFlare. What should I do to resolve the error? What am I missing, and what does it ...
Erik's user avatar
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