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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16 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
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1answer
20 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
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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
18 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
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1answer
29 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 ...
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0answers
20 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.
1
vote
1answer
35 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 ...
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0answers
43 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: ...
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2answers
40 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 ...
1
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1answer
7k 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 ...
0
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1answer
31 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. ...
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2answers
68 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 ...
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0answers
11 views

Get traffic / requests list from AWS console

I started working on a new project and it seems that currently I am under attack. I can see abnormal amount of connections to the DB (500+) and I can't find the source because the project has no ...
0
votes
1answer
93 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
39 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 ...
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0answers
60 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
52 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 ...
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1answer
2k 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 ...
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votes
2answers
43 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 ...
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0answers
49 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
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1answer
65 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 ...
0
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1answer
54 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
50 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
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1answer
48 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{ ...
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2answers
537 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 ...
2
votes
2answers
1k 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: ...
2
votes
1answer
50 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 ...
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votes
1answer
62 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 ...
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votes
2answers
440 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, ...
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0answers
34 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 ...
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0answers
30 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 ...
0
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0answers
151 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 ...
0
votes
1answer
46 views

Reverse proxying a Websocket upstream with Cloudflare

I was going to ask on the main SO boards, but figured this place would be more appropriate. I am wanting to use cloudflare on my main website and then use nginx to reverse proxy a directory to my ...
-1
votes
1answer
46 views

404 header error instead of the correct 200

I have just updated a (dynamic) website by sftp/ssh and all the new pages have been considered as 404 error not found. Actually, all the pages, including the old pages which was overwritten. Also, ...
0
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0answers
28 views

CloudFlare not caching vBulletin php page serving image content

I have signed up with CloudFlare and while it seems to work for some pages I cannot get a rule to work correctly with php pages serving images. The page in question is: ...
0
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0answers
22 views

Website Guests Viewing

I'm not sure if this is the right place to ask but recently on my website, it is being taken down by "guests" as in all of a sudden I will have 13,000 guests on my website. Cloudflare nor OVH detects ...
0
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0answers
44 views

Why does Cloudflare DNS always resolve to the same edge servers?

Cloudflare has servers all around the globe, yet it always returns the same set of servers for a website regardless of the requester's location. For example I've run dig for curse.com (which uses ...
0
votes
1answer
31 views

Pointing client's domain to our subdomain

We have a web application online www.exampleapp.com/ running on IIS 7.5 that we have a full control of. We also provide customised (css, images, js, etc.) versions for some customers under subdomains ...
0
votes
2answers
103 views

CloudFlare giving error 522 without HTTPS

I've set up Let's Encrypt (with nginx) on my server, following the tutorial I've linked in the comments. I've also set up CloudFlare with the following DNS settings: http://i.imgur.com/Z7PRD6l.png ...
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votes
2answers
49 views

Does CloudFlare cache MaxCDN resources?

I'm utilizing both CloudFlare and MaxCDN for my website; MaxCDN handles images and scripts while CloudFlare handles HTML pages (in terms of CDN). I'm not using a custom subdomain for MaxCDN (i.e. I'm ...
0
votes
2answers
218 views

EC2 + Cloudflare = CORS issue with font

I just put my first Wordpress site up on a EC2 instance. And I have setup CloudFlare as my CDN. But when viewing the site I get the error below: Font from origin 'EC2 IP' has been blocked from ...
0
votes
1answer
217 views

How to mitigate DDOS attacks on AWS?

I have web application (NodeJS) and I plan to deploy it to AWS. To minimize the cost it will run on single EC2 instance. I'm worried though about what will happen if someone decides to bless me with ...
0
votes
1answer
13 views

Log access to cached content by 3rd party

The question is pretty much the same as this one: How to log a request to apache access log if it's cached by Varnish but instead of varnish let's say I am using CloudFlare. Is there any way to ...
1
vote
1answer
73 views

Do I have to have the IP address of a server to initiate a DMCA takedown if the server is behind a service like Cloudflare?

We have some content that is, well, "contested". The site that is misusing our content is being hosted by Cloudflare. I'm concerned that I will need to know the IP address of the server hosting the ...
1
vote
1answer
64 views

Redirect www to naked domain using CloudFlare

I would like all my requests to www.example.com to be redirect to example.com, in order to ease anaylitics and for marketing reasons. I could not find out how to this this with CloudFlare (I was used ...
2
votes
1answer
2k views

HTTPS access to S3 bucket through Cloudflare

I'm trying to use Cloudflare to provide https access to an s3 bucket. I've setup the CNAME entry in Cloudfront with pointing to the bucket and I've verified I can access it via http but when I try and ...
0
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0answers
31 views

Domain forwarding without running a server with CloudFlare

CloudFlare has a great option in PageRules to set up URL forwarding. I can set it to *.example.com/* to redirect everything to a different domain. My problem is that while this works perfectly, this ...
0
votes
2answers
176 views

How do I find the cause of http to https redirect loop?

I setup owncloud on a new box recently (Apache/2.4.10 Debian). This was before I got an ssl cert through Let's Encrypt. I've been trying to force http to https, but I always end up with redirect ...
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0answers
80 views

Is there a limit for the overall cache size on cloudflare?

I want to cache and pressed static JPG map tiles on cloudflare. Those around 10KB files each, but in total quite some GB. Is there a limit of objects or total size of cached objects? (Free Plan if ...