• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here:Home » HP Cloud CDN & DNS : Far Set Expires to Leverage Caching

By Abhishek Ghosh June 21, 2015 1:06 am Updated on June 21, 2015

HP Cloud CDN & DNS : Far Set Expires to Leverage Caching

Advertisement

50 Years Expires May Not Work. Far Set Expires to Leverage Caching in HP Cloud CDN & DNS By Setting Container TTL to 5 Years & Same For DNS. Programmatically we can change the Expire Headers in OpenStack Object Storage or Swift on HP Cloud. Thats great, but actually setting the container TTL to a higher values do the same work for only setting the expire headers.

 

HP Cloud CDN & DNS : What Are the Pitfalls in Far Set Expires to Leverage Caching

 

50 years or 1577836800 seconds possibly can not write the data on Akamai’s container. Using 5 years value (157783680 seconds) works fine. Second unfortunate thing is that – the HTTPS links will not get the Expire Header changed. For example, this is a working example :

Vim
1
2
3
4
5
6
7
8
9
10
11
12
$ curl -I http://h3c328c03da76f5c1e44c912c7d12561b.cdn.hpcloudsvc.com/usr/.htaccess
HTTP/1.1 200 OK
Last-Modified: Fri, 23 Jan 2015 19:27:36 GMT
ETag: "c863a49e68d1332f918c74e6675adba7"
Content-Length: 83
Accept-Ranges: bytes
Content-Type: application/octet-stream
X-Trans-Id: tx5e6e226ac9254d9294ef8-0055860573
Cache-Control: public, max-age=157782823
Expires: Sat, 20 Jun 2020 05:17:39 GMT
Date: Sun, 21 Jun 2015 00:43:56 GMT
Connection: keep-alive

But for the corresponding HTTPS URL :

Advertisement

---

Vim
1
2
3
4
5
6
7
8
9
10
11
12
$ curl -I https://a248.e.akamai.net/cdn.hpcloudsvc.com/h3c328c03da76f5c1e44c912c7d12561b/prodaw2//usr/.htaccess
HTTP/1.1 200 OK
Last-Modified: Fri, 23 Jan 2015 19:27:36 GMT
ETag: "c863a49e68d1332f918c74e6675adba7"
Content-Length: 83
Accept-Ranges: bytes
Content-Type: application/octet-stream
X-Trans-Id: tx32b504b3a42f4256bb74c-0055860553
Cache-Control: public, max-age=42206
Expires: Sun, 21 Jun 2015 12:29:07 GMT
Date: Sun, 21 Jun 2015 00:45:41 GMT
Connection: keep-alive

Cache-Control: public, max-age=42206 – too low and has no fix discovered by us.

 

HP Cloud CDN & DNS : How To Far Set Expires to Leverage Caching

 

Very easy. Login to HP Cloud Horizon Web GUI. If you have any published container as CDN, click the down arrow button beside the name of the container :

HP Cloud CDN & DNS - Far Set Expires to Leverage Caching

Click to Edit the TTL and you will get a pop up window. Editing the TTL to 5 years (i.e. 157783680 seconds) will do the work for all the non-HTTPS URLs against the objects in the container. However, the HTTPS URLs will lag behind!

We guess, the TTL of A record and AAAA record should maximum raised to 157783680 seconds. 50 years probably triggers some errors in Akamai’s end – 50 years is officially supported max time by Akamai. You’ll get TTL of a domain in this way :

Vim
1
dig +nocmd +multiline +noall +answer any thecustomizewindows.com

You have to Edit from DNS’s Web GUI. Geographical Distribution of HP Cloud – Akamai ‘s DNS system & Authority Servers are very complex and not possible for us to modify the value to huge extent. This command will give you better idea :

Vim
1
dig +trace +nocmd +noall +answer +ttlid a thecustomizewindows.com

Change thecustomizewindows.com with your domain name.

Tagged With cdn dns caching
Facebook Twitter Pinterest

Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to HP Cloud CDN & DNS : Far Set Expires to Leverage Caching

  • Nginx WordPress Installation Guide (All Steps)

    This is a Full Nginx WordPress Installation Guide With All the Steps, Including Some Optimization and Setup Which is Compatible With WordPress DOT ORG Example Settings For Nginx.

  • Changing Data With cURL for OpenStack Swift (HP Cloud CDN)

    Changing Data With cURL For Object is Quite Easy in OpenStack Swift. Here Are Examples With HP Cloud CDN To Make it Clear. Official Examples Are Bad.

  • Change CDN Object Metadata in HP Cloud CDN With cURL

    Possibly Most Important Parameter to Change is TTL or Expires. We Have Pointed How To Change CDN Object Metadata in HP Cloud CDN With cURL.

  • Effectiveness of Flushing DNS Cache to Prevent DNS Cache Poisoning and Spoofing

    Effectiveness of Flushing DNS Cache to Prevent DNS Cache Poisoning and Spoofing Discussed in Details in Plain English Making Readable to All.

performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

Get new posts by email:

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (24.3K Followers)
  • Twitter (5.8k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • Affiliate Marketing Condition/Commission ModelsNovember 28, 2023
  • How Affiliate Marketing WorksNovember 28, 2023
  • Phases of Product DevelopmentNovember 27, 2023
  • Sub-Areas of Direct MarketingNovember 27, 2023
  • Strengths and Weakness of Direct MarketingNovember 26, 2023
PC users can consult Corrine Chorney for Security.

Want to know more about us?

Read Notability and Mentions & Our Setup.

Copyright © 2023 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy