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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2
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2answers
418 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
votes
2answers
63 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
1k 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
617 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
184 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 ...
0
votes
1answer
81 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 ...
1
vote
0answers
439 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 ...
-4
votes
1answer
403 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
429 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
vote
1answer
135 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 ...
1
vote
2answers
695 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
257 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
839 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
1k 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
167 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
votes
1answer
505 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
543 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
1k 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
841 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
572 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
366 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
173 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
142 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
283 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
374 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
580 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
176 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
176 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
434 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
100 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 ...
5
votes
1answer
2k views

Akamai / CDN - How much do CDNs like akamai cost? [closed]

I haven't been able to find any numbers related to cost via google or price sheets. How much do these services realistically cost (akamai, limelight, any of them)? Are there any good CDN ...
2
votes
3answers
569 views

How do I configure an SSL only site, in a way that doesn't affect browser connection limits

The Yahoo Developer Best Practices recommend using multiple hosts (host1.company.com, host2.company.com, etc..) as a way of overcoming a webbrowsers built in limitation of only issuing two concurrent ...
0
votes
2answers
1k views

Cloudflare hurting performance

I recently set up cloudflare on a new site I'm about to launch. I ran some benchmarks with it on and with it off and the output is extremely troubling. Does this make sense to anyone? Before when ...
1
vote
1answer
46 views

Amazon S3 preprocess request

Is there any way to preprocess Amazon S3 request by executing some logic in some programming logic (e. g. if I need to restrict access to resources by some dynamic condition)?
1
vote
2answers
160 views

Does creating a new CNAME replace the old?

I have a CNAME record: cdn.example.com. IN CNAME examp.vo.llnwd.net which was registered through Limelight. Do I need to go back to Limelight release this record? Or if I just generate a new ...
1
vote
1answer
304 views

How to meter rackspace+Akamai usage

On our system(which is based on Rackspace cloud and uses integrated Akamai CDN) we want to cap usage of our cloud files and CDN and bill users accordingly. If I look at API set exposed by Rackspace ...
0
votes
1answer
1k views

Serving index.html and other files via ngnix and CDN (Rackspace Cloud Files)

I would like to serve the index.html file for my domain via a cdn (and a few other static pages). Would it be possible to do this with an Amazon EC2 Instance and Rackspace Cloud Files? I found ...
1
vote
3answers
788 views

CDN for caching REST api

I am doing some research on CDN providers, however I have a hard time finding out which ones are available, what exactly they offer, and if they are appropriate for my purpose. Hopefully you guys can ...
1
vote
3answers
204 views

Are there CDN for streaming video content with custom configuration of media servers

My company currently is using CloudFront as Content Distribution Network. But recently we need some additional configuration to the media server they are using for streaming our video content. But... ...
3
votes
3answers
384 views

Monitoring CDN from different geographical locations

Recently we had a problem with our CDN service: one of edge locations cached incomplete version of javascript file and our customers from United Arab Emirates (and maybe some other nearby countries) ...
2
votes
5answers
11k views

How to upload files from Amazon EC2 server to S3 bucket?

What is the default way to upload files from a EC2 web server to a S3 bucket for content delivery?
1
vote
1answer
2k views

ISP Point of Presence versus ISP data center and what effect it has on CDN server deployment

I would like to clarify my understanding of the difference between an ISP Point of Presence and an ISP data center. Perhaps more importantly, I'm trying to understand at what kind of granularity each ...
1
vote
4answers
590 views

Rackspace Cloud Files - limiting possible connections

We have a plan to create a new section to our website - one that will feature HTML5 video. During the initial tests we've done, HD video encoded with Zencoder and stored on Rackspace Cloud Files and ...
-1
votes
1answer
149 views

Should a well-optimized ad server be able to run fine on a single dedicated server?

This is a completely hypothetical question that myself and a colleague have been wondering/debating about, and we thought some of the knowledgeable people at SF could shed some light. Say, for ...
3
votes
1answer
2k views

CloudFront or other CDN with RTSP streaming?

So I've been bouncing between CDN's trying to optimize our serving solution. We're serving short video clips into our code that display either an html5 video element (MP4 or OGG) or a flash swf (FLV) ...
0
votes
2answers
155 views

1 user, 1 day, millions of requests for the same file

Help! Here's the scenario: I'm hosting and serving display ads. These consist of some media creatives and some javascript files to assemble and display the ad. The files are hosted on a CDN. We did ...
8
votes
4answers
35k views

How can I verify that an RTMP stream URL is working?

I have been put in charge of setting up a CDN account for streaming video but am not actually running the site that will host the content. How can I test that a published RTMP URL is working? Do I ...