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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0
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0answers
7 views

Plesk + Cloudflare - Get visitors real IP without extension [on hold]

I have a server with Plesk panel installed on him and a website which reach that server through Cloudflare! Content is served by Apache. The problem is that all logs contain Cloudflare IP address! ...
0
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1answer
33 views

The request was aborted: Could not create SSL/TLS secure channel

I have seen a few of these questions around but they are related to IIS or something similar. I am using Apache with Nginx reverse proxy and cloudflare enabled with full (strict) SSL and the PEM and ...
1
vote
3answers
53 views

Is it safe to disable HSTS Preloading as long as the site will remain accessible via HTTPS?

I have a website which is using the free Cloudflare service and have enabled HTTP Strict Transport Security (HSTS) preloading on it. If I wish to remove the domain from Cloudflare and route directly ...
1
vote
2answers
1k views

Https url appended with port 80 using CloudFlare, Nginx, and Thin

I have a Nginx setup for my Thin server running a Ruby on Rails project. Nginx is currently the endpoint for my SSL. I recently had some issues with attacks on my webserver, so I decided to add ...
0
votes
1answer
25 views

IPv6 client accessing IPv4 server w/ IPv6-unaware apps via CloudFlare w/ mod_cloudflare

Our server is currently IPv4 only. However we are using CloudFlare in front of it, and we would like to take advantage of the IPv6 compatibility it offers. In the same time we have some applications ...
-3
votes
1answer
15 views

Cloudflare or Apache vhost misconfiguration? [closed]

I have setup a website in cloudflare that pointing website3.com to xxx.xxx.xxx.xxx IP address. In my apache, I have existing website1.com and website2.com vhost (website 1 and 2 are using digital ...
0
votes
3answers
34 views

Nginx SSL config returns too many redirects, but regular http version is fine

I have recently tried to add SSL termination to my NGINX server configuration. The regular http reverse proxy/load balance version is working fine. Unfortunately, the current config is returning "too ...
2
votes
2answers
1k views

Correct usage of whitelisting cloudflare IPs in iptables

I'm relatively new to using the command line so I'm understandably nervous about fiddling around with IP tables and accidentally doing something wrong which consequently opens up vulnerabilities in ...
0
votes
1answer
20 views

Webmin through apache2 SSL Proxy

I'm trying to make accessible my Webmin through a sub-domain https://webmin.example.com/ I'm using Cloudflare DNS and Cloudflare SSL Certification. Whenever i type the above URL, it's automatically ...
0
votes
1answer
20 views

Nginx 'listen:port' directive, Cloudflare, and SSL

I have two websites on a server, each with their own vhost file in Nginx. Both are also on Cloudflare, and both have SSL certificates that I've got via Let's Encrypt. Both sites' vhosts files are ...
0
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1answer
38 views

Switch back from Cloudflare SSL - 301 Back to http?

I need to know how put a 301 Redirect in my htaccess which points https back to http. Can you help? I see plenty of posts for going from http to https, but not in reverse! I am switching back from ...
1
vote
1answer
46 views

Cloudflare's Websocket Performance while “Proxying”

After finding out that cloudfare now supports Websockets. While browsing their documentation, finding this quote is worrying: No additional configuration is required to send WebSockets traffic ...
0
votes
1answer
46 views

Impossible to serve WebP images using CloudFlare?

I want to optimize some images on my site using WebP format. Webp images are highly compressed jpegs and pngs with the help of algorithm developed in Google. However, webp images can be displayed ...
2
votes
2answers
8k views

Redirect loop using cloudflare's Flexible ssl

I am trying to implement Flexible SSL provided by CloudFlare to my site. Here is my nginx config: # PHP-FPM upstream; change it accordingly to your local config! upstream php-fpm { server 127.0....
0
votes
1answer
55 views

HTTPS throws CloudFlare Error 524

I have a website running off of Apache. Standard HTTP works, but HTTPS does not. HTTPS causes my site to hang, and then eventually throw Error 524. I've looked all over for answers, but couldn't find ...
0
votes
2answers
40 views

Disable Cloudlfare SSL on nginx to use certificate

I use Nginx to host a wordpress site which is configured to use exclusively SSL. A while ago, I activated the Strict SSL option and the HSTS option from Cloudflare. Now I want to disable it and only ...
-2
votes
4answers
77 views

SPF, CloudFlare, Google Apps - Email sent through Contact Form marked as spam

One of the main reasons of putting your server behind CloudFlare is to hide your server's IP address so an attacker can't DDoS your IP and render CloudFlare obsolete. By putting your server behind ...
1
vote
1answer
184 views

Cloudflare SSL - CACert cert file?

I have decided to generate SSL for IIS. I have own CSR and private key. The SSL generated by CloudFlare is in pcks7 format. I would like to to combine it into one pfx formate in order to import it in ...
2
votes
1answer
626 views

How to bypass cloudflare caching like reddit does

Someone knows how reddit manages to bypass cloudflare static html caching once the user logs in successfully with a reload of page? I see that the current page gets reloaded after a successful login. ...
1
vote
0answers
21 views

How works the NS record definition in DNS section at CloudFlare? [duplicate]

In domain configuration at CloudFlare, the DNS section stores the record definitions. What is the exact purpose of NS record here? If configured, it shows something like: Type | Name | Value ...
0
votes
1answer
49 views

How to find CNAME or A details for a site hosted at 1&1 and using CloudFlare name servers?

I own a domain at 1&1, and recently switched to CloudFlare CDN. I have some subdomains hosted at the minimal web space provided by 1&1. 1&1 domains and subdomains are configured to use ...
1
vote
1answer
34 views

Wildcard Subdomains and Custom Domain Names

I have some questions regarding Nginx configuration with wildcard subdomains, and then how custom domains come into the picture. Here is my situation. Let's say I own the site awesome.com. When a ...
0
votes
1answer
54 views

Can I use Cloudflare CDN/HTTP proxy for SSL-enabled web-site?

I want to use Cloudflare CDN/HTTP proxy for my web-site that already has HTTPS through LetsEncrypt certificate. I don't want to use Cloudflare's Free SSL certificate as it doesn't work on WindowsXP ...
0
votes
1answer
61 views

How to store Cloudflare IP as an additional FastCGI parameter in Nginx? [duplicate]

I need to be able to know the Cloudflare IP for connections made to my server. This is so I can determine if a connection is made through Tor. To do that, I need to send the tool the IP that the ...
1
vote
0answers
31 views

CloudFlare - Show captcha to everyone, except country

I wonder whether it is possible in CloudFlare's IP firewall to challenge everyone with a captcha, except 2-3 countries. Tried on my own and searched the web but did not find how.
0
votes
1answer
44 views

Does OCSP stapling increase performance for websites behind CloudFlare?

Should a website trying to increase performance that uses the CloudFlare CDN (or any CDN really) who already do OCSP stapling configure OCSP stapling on their instance of Nginx if "Full SSL" setting ...
0
votes
0answers
92 views

too many redirects when using SSL

Im having an issue with https redirects. Ive tested in chrome, firefox and safari. When i load my website using https i get the errors Firefox: "The page isn't redirecting properly" Chrome: "...
0
votes
2answers
74 views

Can I use the same SSL certificate on the CDN and the origin

It's pretty straightforward question, I have a certificate issued by DigiCert, already installed it on my origin, and I want to use it for the CDN. I'm starting to configure Akamai CDN in front of my ...
0
votes
1answer
60 views

Is it normal to have HTTP 499 errors in 1 out of 4000 requests?

I made a website, behind CloudFlare, and sometimes I get an early terminated (nginx 499) request, which is really hard to work around in the codebase. This happens in about 1 out of 4000 requests. ...
0
votes
2answers
137 views

The incompatibility between Cloudflare and the reverse DNS

I'm already activated Cloudflare for my website and to apply that I had to replace my domain default nameservers with Cloudflare nameservers. Now my website has to send emails to the mail servers, but ...
0
votes
1answer
171 views

nginx GEOIP behind cloudflare proxy showing wrong country (not of end user, but if proxy)

I am using Cloudflare and nginx geoip directives: geoip_country /usr/local/share/GeoIP/GeoIP.dat; geoip_city /usr/local/share/GeoIP/GeoLiteCity.dat; They are picking the IP up OK (as pipaddress ...
-2
votes
1answer
45 views

Creating DNS CNAME or MX aliases

How can I create a CNAME or an MX record alias, for example, I need smtp.mydomain.com to resolve to smtp.yandex.com so that on my email client I should enter smtp.mydomain.com instead of smtp.yandex....
0
votes
0answers
114 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. ...
0
votes
1answer
207 views

rDNS / PTR record when using Cloudflare

I know that Cloudflare, does not support mail trafic and uses dynamic IP's to protect the servers behind it, But I really need to be able to do rDNS lookups on my IP. I have turned of the Caching and ...
0
votes
1answer
3k views

What is the meaning of Server :cloudflare-nginx?

I am trying to see, what is the web-server name of a particular website. http://browserspy.dk/webserver.php When I searched I got response as Server: cloudflare-nginx I know nginx and cloud-...
-4
votes
2answers
55 views

Config to allow SQL Server to be connected through CloudFlare?

I have already known the risk of exposing SQL Server database on the Internet, but please look at my situation: I have two instances of SQL Server: production (default instance SQLEXPRESS) and dev (...
0
votes
0answers
115 views

nginx req limit & fail2ban & cloudflare large attacks

I started to use as the topic says nginx with req limit + fail2ban + cloudflare. If someone exceeds the requests on any php file the ip gets blocked over the cloudflare api in the "ip firewall" on ...
0
votes
1answer
107 views

Can I use hosts.allow hosts.deny files to restrict access to my websites (Nginx)?

Is there any way how to use hosts.allow and hosts.deny files to restrict access to the websites (Nginx)? This does not work: hosts.allow file content: nginx: SOME-IP-ADDRESS hosts.deny file content:...
0
votes
1answer
104 views

Authenticated Origin Pulls with CloudFlare and IIS

I'm running Windows Server 2012 R2 with CloudFlare in front and trying to setup authenticated origin pulls as specified here - https://support.cloudflare.com/hc/en-us/articles/204899617 The problem ...
0
votes
1answer
147 views

cloudflare + nginx with limit_req and limit_conn

For the sake of simplicity, let's say I have a web server running nginx serving a single php file (with a "hello world" message) via php5-fpm. Let's say that the server is behind cloudflare and that ...
0
votes
1answer
67 views

how to fix “Invalid command 'set_real_ip_from'” error?

I'm using centos 6 , nginx as reverse proxy,directadmin and cloudflare. I followed the instructions to get real visitors IP as below: $ nano /etc/nginx/nginx.conf added these to http{ ...
0
votes
2answers
600 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"...
2
votes
2answers
2k views

Cloudflare doesn't cache as expected

I'm wondering why Cloulflare would not cache a certain static js file. Given the reuqest: curl -I http://www.testlifeinuk.com/dist/lifeinuk.js the headers returned like: HTTP/1.1 200 OK Date: Mon,...
2
votes
1answer
124 views

Too many redirects

I have an app on Heroku which I would like to point to with two different URLs. I use CloudFlare as my name server. My first domain has 8 records; 2 CNAME, 6 MX and one TXT. It looks like so: CNAME &...
-2
votes
1answer
65 views

Is this a DDoS attack? It's been overr 48 hours. What do I do? [closed]

I run a Wordpress on EC2 at AWS and I am facing the following issue: More than 2 days ago, the CPU went straight to 100% and the load balance up to ~20+ (for a 4-vcpu server) out of the blue. Being ...
-1
votes
2answers
463 views

Enabling Cloudflare via cPanel shows error: “Your DNS is hosted by CloudFlare…” [closed]

I'm trying to configure the DNS for my CloudFlare in my cPanel my host provided me and this keeps happening! But, the thing is that my domain is already pointed to my CloudFlare and I waited 24 ...
2
votes
1answer
3k views

How to make a domain receiving email behind cloudflare?

I have a web server hosting multiple domains (centos + postfix + dovcot), one of my domain its dns is hosted on cloudflare (ie. abcd.com), but when I use gmail to send email to a user@abcd.com, user@...
1
vote
0answers
49 views

Large RSS feed requests to non-existent URL causing 404 (and high load)

Recently I had a new site launced completly replacing a previous site. We have cloudflare in front and switched the host-name to the new site IP. Instantly we saw load go above 200+ and a constant ...
1
vote
0answers
32 views

Cannot change Nameservers to cloudflare

I have a domain but I can't change its nameservers to point Cloudflare's. I've been told that the NIC is rejecting them (it's a ccTLD), literally "your nameservers are not authoritative for that ...
1
vote
0answers
185 views

How to connect Amazon EC2 with Cloudflare?

I'm trying to set up Amazon EC2 with Cloudflare for more than one day. I already added all the information NS failover with NS route53 no Cloudflare but nothing works. Someone got success to connect ...