Tag Archives: server

Learning from the Amazon AWS Outage

I’m a old schooler, I have been programing and dealing with computer systems since mid 1990’s. At that time we did not had all of the cool tools that we have today and everything was dealt with paranoia.

In another words what I’m trying to say is that from experience, there are ways to deal with situations when the sh** hit’s the fan.

Today’s Amazon AWS outage (can’t call a hiccup something that is lasting more than half an hour) either brought down or slowed down sites all over the world. This could have been avoided if business had a simple contingency plan.

Most of today’s mid and large sized web applications use a third party service to host the application, databases, etc. With the increasing demand the Cloud services become more and more popular and the migration of in-house service to third-party service just become natural. If the server died on the third-party, they could replace it with a faster time than if done in-house. With similar reasons the in-house servers became relic and the contingency plan become forgotten. No one would guess that a whole data-warehouse would go down right !?

For whatever reason today Amazon AWS service went down on US-Area-1 (or Virginia) and they stayed (or still are) down for a considerable time. The question that you should be doing right now is: What had to be done to prevent my web application to go offline or slower because one or more servers (doesn’t matter the type – app or db) are offline?

I’m not a DevOPS and I really can’t go deep on the subject, but based on experience (or simply paranoia), here  is an idea. Everything today is distributed, so it should be your server instances under the load balancer. Truth is whoever doesn’t have that today probably got the web application fully offline.

In defense of Amazon AWS, you can choose the areas of service of your servers and, with the exception of Virginia, all the other service areas are working just fine. Even knowing that is pretty bad that a whole area got knocked off, your application should not if you have the server instances correctly setup.

I might be saying the obvious here, but I recall a friend telling me that he was at a conference and all other participants that worked on very large websites were spooked because he mentioned that he had all his server instances with only one single service provider.

Obvious or not every business should prepare a contingency plan. A plan that will give answers and restore it to full working conditions in no or little time in the case of the worst case scenario.

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Setting up email server on Linux environment

I was looking for something else when I came across this tutorial and it is really great. Check it out:

http://flurdy.com/docs/postfix/


A great LAMP shared server

For a while I have been using Hostmonster as my primary hosting provider for my PHP applications and so far it have exceeded my expectations.

The disadvantage so far is that it does not have any dedicated servers and sometimes that is the only option that you might need (since shared servers you still have to configure your session to avoid session attacks), but it have a great amount of advantages that make it worth:

  • Unlimited everything (including domains – addons)
  • PHP and MySQL up to date
  • Creates a PHP.INI file if you need to
  • Have a PEAR and PECL installer
  • Give you a $25 coupon to use on Google Adwords
  • Postgre Databases
  • A good client support
  • With a little upgrade you might get more features such as SSL certificates and dedicated IP (almost a dedicated server)

Since this blog is all about “share the good” and mostly about PHP, I’m leaving this post to help anyone that might need a reasonable cost per features LAMP server.


We got a new writer

I have got some developers asking to post other information and resources here that is not about PHP. Unfortunately that’s not my area. I’m not a great programmer in .NET, Java or even know how to manage a Windows server, considering that, I have asked a couple of friends to help me and the first one have already answered me.

I want to introduce you guys to Vlad Cruz, a good friend of mine, and a infrastructure analyst with specialty in hardware, Windows Servers and Oracle.

Soon enough we are going to have a post from him and meanwhile I will be lobbying other friends to bring more resources to the blog.


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