You’ve enabled mod_deflate either via apxs as a module, or by recompiling httpd as a whole, but alas, no compression.
Continue reading TECH: mod_deflate, apache2 and no compression .
Category Archives: Training
TECH: 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.
Continue reading TECH: Running multiple instances of cgminer on Linux
TECH NOTES: Building mod_security with libxml2
You’d like to add mod_security to your custom apache+mod_php build. The package requires a recent version of libxml2 which must be installed in parallel. Once compiled, httpd is unable to start as a result of missing symbols.
Continue reading TECH NOTES: Building mod_security with libxml2
AWS: 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.
AWS: 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, usually running Linux.
AWS: Naming UNIX instances
Problem
Generating meaningful hostnames without human intervention.
AWS: Introduction to VPC Networking
Amazon Virtual Private Cloud (VPC) provides a framework for building virtual datacenters within AWS.
AWS: 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.
HOWTO: Migrating from XEN to VMware
I wrote a document about migrating RHEL/CentOS xen hosts to VMware .
I hope this helps someone. PDF.