Having been developing software to run on Amazon EC2 for over a year now, I find security groups to be among its least understood and appreciated features.
Basic Usage
In short, EC2 security group (SG) is a set of ACCEPT firewall rules for incoming packets that can apply to TCP, UDP or ICMP. When an instance is [...]
Entries from September 2009
Security Groups – Most Underappreciated Feature of Amazon EC2
September 21st, 2009 · 5 Comments
Tags: cloud computing
On Cloud Lock-In
September 15th, 2009 · Comments Off
I left this comment on today’s post by Randy Bias titled VMWare vs Amazon… ROUND ONE… FIGHT!:
Functionality is more important, imho. As a hypothetical example, say there exists an EC2-like cloud where security groups span all regions (in EC2, as we all know, security groups are confined to a single region). Switching between EC2 and [...]
Tags: cloud computing
Shiny Cloud APIs – Necessary But Not Sufficient
September 8th, 2009 · Comments Off
In the stream of non-stop cloud computing chatter that was surrounding VMWorld 2009 that wrapped up last week, I noticed a pattern – folks were paying disproportionate amount of attention to API, API portability and API standardization, as opposed to actual technology concepts and constructs that are going to power new clouds.
API indeed is important [...]
Tags: cloud computing



