A Content Delivery Network is used to distribute data to end users of an Internet service. It is typically used for large scale distribution, and employs caching and numerous edge locations to speed up and reduce the bandwidth requirements of the process.

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2answers
771 views

HTTPS CNAME setup for CDN

Background I need to host some files on our CDN (edgecast) which will be available over HTTPS. I would usually accomplish this by using the provided CDN url, i.e. https://wav22.233d.edgecast.com/.... ...
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1answer
448 views

Check whether CDN is working or not

Is there any way to find whether the static content is being served by CDN or not. Using curl, can i find whether the static file is being served by CDN or by the webserver.
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1answer
125 views

using a CDN on the same location as server

One of the purpose of a CDN is to distribute your static assets in an area closest to your user. So say my server is at location X and most of my users will be at Y. However the closest CDN server to ...
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2answers
86 views

How to return no answer with nginx?

I use nginx with Incapsula CDN and need to cleanly block all another requests in nginx's server {} context (for certain domain names, but not for all nginx's connections). Best practice in my opinion ...
1
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3answers
421 views

Why Not Serve an Entire Site from a CDN? [closed]

Normally when I hear about CDNs and how great they are, they're usually talking about serving a site's static content, like images, CSS, JS, and video. But if CDNs are so great, why don't we run ...
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2answers
547 views

Wordpress feed does not update after APC and Cloudflare

I am running a Wordpress site on a Ubuntu server. I installed APC and setup Cloudflare. After that I started having a strange problem with the feed. When I check the feed on the browser, I can see ...
1
vote
1answer
55 views

CDNs - is there a delay between file submission and availability?

I've never subscribed to a CDN before, and was hoping someone could share their experience. My question is: Is there a significant delay between a file being submitted via a CDN (via API), and it's ...
2
votes
1answer
87 views

static big files and a way to serve them securely (central authentication CDN)

I need to serve few static big files(about 4GB each) to several users, using 5 servers that are in different geographical regions. The idea is that nobody else gets the content as there's ...
0
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1answer
676 views

gzip_http_version set to 1.0 but sends 1.1

I am trying to set Amazon CloudFront up with Nginx using W3 Total Cache and WordPress multisite. CloudFront only works with http 1.0 so, I read that you need to change the http version in gzip to 1.0. ...
0
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1answer
111 views

CDN that pulls content from 3xx redirect target?

Storing data in Amazon's S3. Some of the data is for public viewing, and some is for private. I'd rather have everything in S3 marked as private, and enforce viewing constraints through my web app. ...
0
votes
1answer
337 views

Suggest CDN with Byte-Range requests support for streaming [closed]

I'm trying to find high load solution for streaming server. The idea came to me this morning. What about CDN or cloud storage with byte-range support. Basically flash player require only partial ...
5
votes
2answers
731 views

How can I handle big traffic spikes on my dedicated server?

I have an E-Commerce site, which gains a sudden peak of very high traffic when I turn on different ads campaigns. From this moment on, my current dedicated server (Hostgator, 4GB Memoray, 100mbps ...
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2answers
98 views

Global DNS loadbalancing [closed]

Is it that the DNS queries from a particular region goes to DNS servers located nearest? How DNS servers are made aware of the geographical location of requesting IP address? Is that how the CDN ...
3
votes
1answer
2k views

Setting up CloudFront CDN on a cookieless root domain

I have recently set up an AWS S3 bucket for my site's static content, along w/ a CloudFront distribution for my CDN. I have this working using a sub-domain. However, after running YSlow, I realized ...
0
votes
1answer
59 views

load website from 3 different server simultaneously [closed]

I have a website hosted on a VPS, But now i have a problem. My website, downed several times in last month and i change my service but still i have the same problems... I want to do something, i want, ...
0
votes
1answer
69 views

Caching video content on CDN

I'm currently running an application that delivers streaming video. All of the video content is hosted on our server, but we'd like to take some of the bandwidth load off of our server and speed up ...
1
vote
2answers
135 views

load balancing and port speed/bandwidth

help me understand something about load balancing. Let's pretend we have one server as frontend and three servers as backend. All are hosted in the same datacenter using a local connectivity. ...
3
votes
2answers
656 views

Is subdomain (CNAME) slower than using original address?

I am no expert at this at all, so I am wandering is there a difference in speed, etc. when using some subdomain (CNAME record) over the original address? For example, when using CDN like Amazon S3. ...
0
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2answers
64 views

Is it normal that Apache logs website visitors when it's using a CDN?

An Apache web server is serving content through CDN. The CDN cache every 3 hours. Is it normal that Apache logs all the visits? I think this means that the CDN is not working!
7
votes
6answers
2k views

Does a CDN still work even when my server is down?

I am a website owner planning to use Amazon's cloudfront S3. I have been reading all the stuffs about what a CDN can do but i still have an unanswered question. Does a CDN still work even when my ...
1
vote
1answer
774 views

htaccess - How to allow access only to static files for specific domain

The idea is to serve js,css, img files using different domains so I created following domains: css.mydomain.com js.mydomain.com img.mydomain.com The main site URL is www.mydomain.com. When I ...
2
votes
2answers
204 views

Using Redirect for an SSL CDN to have a Custom Domain

We're looking to move our website/app assets to a CDN. The problem is, our CDN doesn't offer custom domain names with SSL. In other words, for SSL they offer https://1234.cdn.hostingcompany.com but ...
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1answer
102 views

CloudFlare dashboards empty, or performance issues

I wanted to test CloudFlare performance so I set my image gallery domain on it and started testing. I have added PageRules for caching. And chose the Security: Essentially Off. I checked NS check ...
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0answers
519 views

Testing image load times CDN vs Nginx server

We have been running a website that contains quite large image gallery. We started growing and we need a new place to keep our images. So I started looking and testing. For testing purposes I created ...
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votes
1answer
526 views

How do CDN work if IP Addr are random? [closed]

From my understanding CDN are fast because they have big pipes, serve static content and are 'close' to you. But from my understanding DNS's give you a random IP address. If a CDN have 1 location ...
0
votes
1answer
494 views

CloudFront - first access

We are storing video files in Amazon S3-Buckets, and do the playout via CloudFront. Unfortunately, although CloudFront has an origin-pull mechanism, the files are only transferred from S3 to the edges ...
1
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1answer
139 views

Test site speed

I am test driving an Akmai CDN architecture and before committing to buy, I would like to gauge the real performance gain from the acceleration feature. What would be the best MO for doing speed ...
2
votes
2answers
826 views

load balancing IIS7.5 server by geolocation

I have one web site and 3 servers in different location Asia, Europe, US. I am new in this things but what I want to do is implement ARR load balancing by geolocation (like CDN). Anyone know tutorial ...
1
vote
1answer
344 views

Using CDN to serve images folder for PHP/Apache website

I have a PHP5/Apache2/MySQL website. Now in the folder structure under root I have an root\images folder that just has images. I also have a root\skin\images folder again has only images. If I wanted ...
0
votes
1answer
1k views

Reducing Excessive DNS Queries caused by a CDN

Heres the situation, I recently setup a few of my sites on a a CDN (specifically MediaTemple's ProCDN via Edgecast). Setup went perfectly normal but a couple of days later I notice this: (15K a day ...
1
vote
1answer
2k views

Can I resolve DNS based on the calling clients source IP?

Given a Windows 2008 or 2008 R2 DNS Server and a well known list of internal subnets, can I resolve DNS entries different based on the IP of the calling client? Essentially, poor man's CDN where I ...
0
votes
1answer
178 views

Subdomains with some dynamic content and some static content on a CDN

Here's what I want to do. I know I can't do everything; I'm looking to see how close I can get or if anyone has a creative solution. The goal is to make it so I can deploy HTML+CSS+JS to ...
0
votes
1answer
2k views

RTMP alternative for Streaming on HTML5 video player?

I have a CDN with Level3 via VPS.net. Anyway to use this CDN with html5 video players. The support people say it can only be used via RTMP, and RTMP seems to be flash only. I want to give the ...
0
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1answer
658 views

Google Analytics setting cookies on static content despite being on entirely separate domain

I recently decided to comply with the YSlow recommendation that static content is hosted on a cookieless domain. As I already use the root of my domain (donaldjenkins.com) to host my website—on which ...
2
votes
2answers
642 views

CloudFront - Users requests static files non-stop to make your bill high?

I had this weird wondering once. If I am using CloudFront as my CDN, I pay per requests made on my static files. So here comes the wondering. Can one keep requesting the same file in a non-stop ...
3
votes
2answers
2k views

CDN CNAMEs not resolving to customer origin

I have set up an Edgecast CDN to mirror all my static content. Because I use the root of my domain (donaldjenkins.com) to host my main site—using Google Analytics which sets cookies—I've stored the ...
3
votes
1answer
1k views

SSL Cert for custom domain endpoint on Azure CDN

We have some content hosted for our Azure application on the Azure CDN - we can access this nicely over https using the standard endpoint address, however for 'neatness' our customer would like to use ...
0
votes
2answers
693 views

Setting up centralized storage (e.g., NAS/SAN) for a SaaS application

I have a SaaS application running on 6+ servers in HPCloud which creates large amounts of data (GB/TB). Users talk to the application through a RESTful api which replies back with a link to our CDN ...
0
votes
1answer
45 views

Media Being Hosted In SVN For Web Application [closed]

I have a client who decided to use SVN to host the media files and pulled by a web application for viewing. What are the consequences of this, and wouldn't a better option be to use a NAS or CDN?
1
vote
3answers
429 views

Use different dns servers for CDNs

Back when google first released their 8.8.8.8 and 8.8.4.4 dns servers I did some profiling, and they are way faster for our location. A more recent test confirms this is still the case. However, after ...
0
votes
1answer
193 views

How should I handle static assets when deploying code to different webservers?

Say I have two production webservers (web1 and web2) and a static asset origin server (origin1), and I want to deploy new code that references new css/js/images. After updating web1 and putting it ...
2
votes
2answers
156 views

What do you do when your site scales so much that uploaded_media can't fit on one machine? [closed]

What do you do when your site scales so much that your uploaded_media (in Django, where all uploaded media files from users is stored) can't fit on one machine? My personal case, I'm using Django and ...
0
votes
1answer
296 views

Cloudflare performance, ddos [closed]

I have been using cloudflare CDN on my website (wordpress) for about 4 months, mostly because I was hoping the CDN would make things faster, and make the load on my cheap server somewhat smaller, ...
3
votes
1answer
532 views

Using amazon S3 as storage for attachments in a web-mail system

I am looking to use S3 as data storage service for a mail system. The idea is to allow users to upload files that serve as attachments to their emails, which are then available to download from the ...
-1
votes
1answer
743 views

Setting up self hosted CDN

Am building a site that makes a lot of requests for javascript and css files, and I've being reading about CDNs. I have a spare domain name and hosting space which I would like to use host these ...
0
votes
1answer
182 views

NGiNX + PHP5-fpm + CDN Tools (plugin)

I am trying to activate the CDN tools plugin and I keep getting the following error: Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 30720 bytes) in ...
2
votes
2answers
198 views

Can a CDN (specifically CloudFront) stampede its origin server after a miss?

Similar to how a memcache server can stampede a db after a missed hit. Should I ever expect high traffic from my CDN(s)?
1
vote
1answer
560 views

Preload/Prime Amazon Cloud Front CDN before move.

I am changing CDNs and I would like to preload some content to AWS Cloud Front so that my origin server is not hammered during that transition. Any tips?
0
votes
1answer
107 views

Running my own CDN alongside Amazons S3 for nearby visitors

I am running a blog on shared webhosting. The website itself is on the hosting, but my files right now are on Amazons S3 CDN. I have made a bucket lockated in the US, and I have setup a virtual host ...
0
votes
1answer
36 views

HTTP Cacheing To Lessen Cluster Nodes?

I have been looking into using http caching for one of my projects on heroku. The site is serving primarily dynamicish (meaning that the actual contents doesn't change that often) iFrame's and ...