AWS Passes 2% of Available IPv4 Addresses

On Sept. 1, 2022 at 2:43:08 (UTC) AWS announced/published IPv4 addresses hit 74,338,005, which is 2.0079% of all usable public IPv4 addresses. That’s a rather significant milestone if you ask me! Naturally the first question is likely, how does one know how many IP addresses does AWS announce/publish? The simple answer is that AWS regularly […]

AWS EC2 Instance Types per Region or Local Zone

After completing my recent post, “What Is The Size And Scope Of AWS Anyway?” I stumbled across another interesting metric to compare one region to another across AWS – EC2 instance types offered per region. While attempting to launch a test EC2 instance into a local zone I was getting a rather unuseful error message […]

What is the Size and Scope of AWS Anyway?

Admittedly this is a bit of a loaded question. There are certainly a number of metrics by which something like this can be measured – gross revenue; number of employees; percent of market share; services/products offered; infrastructure footprint; and so on. By all accounts AWS is the “biggest” of all cloud providers and a quick […]

S3 Bucket Policy to Restrict Access by Referrer, Yet Allow Direct Access to File(s)

Recently Amazon rolled out S3 Bucket Policies (see Access Policy Language) to more finely control access to S3 buckets or resources in buckets, than with just ACL’s alone.  This was very timely as I had a need arise to use a bucket policy just after it came out.  Basically I needed to block access of […]

Get Yesterday’s date in MS DOS Batch file

A while back while I was trying to figure out the best way to gather some log files from Amazon S3 buckets and some web servers I run.  These resources are currently generating around 10-15GB of uncompressed log files daily.  Besides being fairly large in size the S3 (and CloudFront) log files are numerous.  Any […]

Recover From 120 Day Terminal Services Eval Time Bomb in Windows Servers on EC2

I’ve always been frustrated by Windows messages like, “please see your administrator. . .”  I AM the administrator, I don’t need to see myself, I need useful information to lead me in the right direction to troubleshoot and correct a problem. Here’s a new one that really frustrated me this week.  I have several Amazon […]

Copying ElasticFox Tags from One Browser to Another

The ElasticFox Firefox extension allows you to tag EC2 instances, EBS volumes, EBS snapshots, Elastic IPs, and AMIs. ElasticFox’s tags are stored locally within Firefox, so if you use ElasticFox from more than one browser your tags from one browser are not visible in any other browser.  Also, if your browser crashes you may lose […]

Maximum EBS Volumes on EC2 Windows EBS-backed Instances – EBS Volume Limit

Last week I wrote about The Maximum (EBS) Drives/Volumes for an EC2 Windows Instance.  In that I discussed the max I had discovered was 12.  While that is accurate, it is important to understand that was based on “instance-store” (or S3-backed) instances.  Since I’ve been working recently with EBS-backed Windows (2003 and 2008) instances I […]

What is the Maximum Drives for an EC2 Windows Instance? – EBS Volume Limit

Yesterday while I was doing some performance testing on Amazon EBS (elastic block storage) volumes attached to a Windows AMI (Amazon machine instance) I ran into an unanticipated issue – the maximum number of drives associated with an EC2 Windows server was lower than I expected.  The max connected drives is 12 – this includes […]

Elasticfox Firefox Extension for Amazon EC2

I’ve been using ElasticFox for a while now and thought I’d jot down a few notes about it.  I don’t use it exclusively to manage my Amazon Web Services (AWS) EC2 instances, EBS volumes, etc., but usually I do go there first.  It’s worth mentioning that I also use the AWS Management Console and EC2 […]