AWS: VPC: NAT: S3 incomplete files
If you’re using s3 behind a VPC NAT connection, you may find that some files fail to download completely. The problem is related to how the S3 network infrastructure utilizes certain TCP flags (push)...
View ArticleAWS: VPC: Autoscaling and Deployment
The problems 1. Distributing code to autoscaled EC2 instances without user interaction . 2. Launching new instances with the current code release. (Please do not use any code in this article without...
View ArticleAWS: Introduction to VPC Networking
Amazon Virtual Private Cloud (VPC) provides a framework for building virtual datacenters within AWS. Basic VPC concepts include: VPC itself Subnets (Private or public) Route Tables (Subnet routing...
View ArticleAWS: Naming UNIX instances
Problem Generating meaningful hostnames without human intervention. Requirements Uniquely identify instance by its purpose, environment (qa, prod, stage, dev) & location . One solution 1) Query the...
View ArticleAWS: VPC NAT
Believe it or not, VPC does not provide native NAT functionality. Hopefully, someday, we’ll get a NAT equivalent to IGW. Until then, NAT functionality is implemented through an EC2 NAT instance,...
View ArticleAWS: RDS: MySQL Limitations
MySQL on RDS has its pros and cons. Only your organization can decide if the solution meets your needs. Migrating from a traditonal MySQL database to RDS may not be a simple task. WARNING: As with many...
View ArticleTECH: Running multiple instances of cgminer on Linux
One may have software, hardware or configuration issues which require multiple instances of cgminer to share the USB bus. First, discover the addresses of your USB devices In this example, the user is...
View ArticleMISC: Google Street View Curiousity
Today I discovered an interesting overlap on Google Street View.. Take a look at this street view location. Begin moving forward a few feet. The road is instantly closed and all vegetation has been...
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