Vagrant should be used more like a staging environment to test your infrastructure changes. It should be your test bed for automated infrastructure changes. The way we use it at my company is like so: Create VMs for our managed servers in Vagrant. Create puppet definitions for each server. Create cucumber tests for each server. … Read more
There is no –except feature in terraform destroy command currently. If you really want to do that, and you know what you are doing, here is the workaround. # list all resources terraform state list # remove that resource you don’t want to destroy # you can add more to be excluded if required terraform … Read more
What are common symptoms of over-engineering? Code that solves problems you don’t have.
I primarily work with an application that has zero horizontal scaling potential. Even though it runs on Linux, the application, data structures and I/O requirements force me to “scale up” onto progressively larger systems in order to accommodate increased user workloads. Many legacy line-of-business and transactional applications have these types of constraints. It’s one reason … Read more
Security. Your web server lives in a DMZ, accessible to the public internet and taking untrusted input from anonymous users. If your web server gets compromised, and you’ve followed least privilege rules in connecting to your DB, the maximum exposure is what your app can do through the database API. If you have a business … Read more
Welcome welcome welcome to the world of the Internet in Australia. Even in our largest population center, we can struggle to get 3Mbps downstream on a business-class ADSL2+ connection. Cable penetration is poor in residential areas, and even worse in commercial so unless you’re fortunate you can’t get cable internet. And because we’re such a … Read more
It refers to the technologies used that make up your service: your web application language/framework depends on (is stacked on) your web server, which talks to (stacks on) a specific database flavor, and these run on (stack with) specific operating systems. So you might have a stack like this: P PHP M MySQL A Apache … Read more
I’m no expert either but I’m on board with what you’ve stated in your question. My opinion is that the vendor is giving you a snow job in order to make more money off of the job by selling you CAT6 cable. My recommendation is that unless you plan on moving to 10GbE (CAT6a cable … Read more
It’s really difficult to buy an unsuitable rack today if you’re purchasing new. I usually encounter generic, custom or unbranded racks, APC Netshelter, Dell and HP (10642 G1 and G2 models) in the field. They’ve all been solid and have handled the systems and equipment I’ve needed to mount within them. The basics: Begin with … Read more