davethemaker

Category: Virtual Computing

  • Attaching EBS Volume to EC2, Creating Redundancy

    I’ve been exploring the AWS cloud ecosystem – first, creating a VPC with a single public subnet, a security group that corresponds to that (port 22 and 80 open for SSH and HTTP), attaching an Internet Gateway to the VPC, attaching a route table to the subnet. I spun up an Ubuntu server within the…

  • VPC+Web Server + DB (pt 2)

    In my previous post, I followed a tutorial which set up a VPC, along with four subnets (two of which won’t be used), each situtated in their own Availability Zone for increased security. The DB in one, a private subnet, with a security group that is locked down -only the EC2 server, in the same…

  • VPC + DB in Private Subnet > Public-Facing Server (pt 1)

    I’ve been deep-diving networking, Linux, and studies for the CSA, so time to start pulling everything together! I decided to follow a tutorial for creating a VPC with a private subnet holding a RDB and a public-facing EC2 instance/server in a second subnet. This is a pretty common use case, so a great place to…

  • Maximizing Cloud Computing

    I’ve always been interested in IoT and today I learned more about Fog Computing, which is the intersection of cloud computing and IoT edge devices. The nodes are closer to the edge devices, minimizing latency and allowing for greater capacity for data storage. One can see security vulnerabilities, though- possible DoS, hijacking, bottlenecks, and so…

  • Hyper-V Virtual Machine Practice

    I’ve been spinning up VMs using VirtualBox (by Oracle), including Centos 7, Kali Linux, Ubuntu- and for this exercise I am jumping into the Windows world to spin up a VM there. Above, you can see that I used the VM Wizard to provide the attributes that I want, setting memory size, networking (external), hard…

  • Connecting VM Centos 7 to internet

    I have a Centos 7 virtual machine on my virtualbox hypervisor, which has been great for practicing vim and such. However, when trying to get onto the internet, I wasn’t successful- and poking around the configuration settings of the software platform didn’t seem to work (without doing a deep dive, anyways). I followed this video,…