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First Foray into CloudFormation
I’m interested in learning Infrastructure as Code, and since I’ve been diving deep into the AWS waters, decided to cozy up to CloudFormation. Here’s what I did to launch an AWS EC2 instance using that tool: First, I created a stack and uploaded a custom .yml file There were a few attribute options, but I…
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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…
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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…
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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…
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nmap script engine: nmap_vulners
Both nmap and wireshark are two penetration testing mainstay tools that are highly recommended to learn. I’ve been exploring both of their functionality, but know that it will take some time to even begin to harness The Power that resides therein. One of the tools that nmap offers is a scripting engine, which I decided…
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exploring nmap
While learning linux and networking, I am learning to tie in different streams of information through using tools like nmap. For example, I am becoming more familiar with creating a new terminal on my kali box using Ctl + Alt + F<key>, setting root permissions, then having nmap run an aggressive scan on nmap.org’s box,…
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Mounted Drives and Persistence
I ended my previous post right before I edited the fstab -why, you might ask? Well, the first time that I edited this file, I used spaces to delimit the various values, when actually a tab should have been used – except for the final two values, around dumping ability and priority, which uses a…
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Config RAID and Logical Volumes
I’ve written a few posts as I learned how to create a logical drive, and touched upon RAID systems too- in this post, I’ll combine the two together. There are three main steps, in part I, with creating a logical drive: 1. Create hard drives that will become LVMs 2. create volume group(s) and 3.…
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Expanding LVM
In a previous post, I added a virtual hard drive, partitioned it, used that partitition as a Physical Volume > LVM Volume Group (DATA) > LVM Logical Volume (development). That was a 1GB logical volume out of a total 1.06GB hard drive. Now, to enjoy the benefits of a LVM partition and dynamically extend it…
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Expanding VM storage
I want to experiment with configuring LVM on partitions, but the ones presented on my Ubuntu 22.04 VM are not available. I followed this tutorial for creating an additional partition, once that I would be able to practice on. Select the VM in question, then select Settings and Storage. Next, select the Controller, as indicated…
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davethemaker 