Hello, I'm Sarah 💖
Consulting sysadmin
Badass Hacker Chick
This is my website, a mix between a portfolio, blog, and personal wiki to document the projects I do. Thanks for checking in.
More About MeLanguages:
PHP - MySQL - Python - Bash - C / C++ - Go
Technologies:
vmWare - Cisco - Linux/BSD - Git - SQL - AWS - Google Cloud - Windows Server - Nagios - cPanel - Server Hardware
Protocols:
TCP/IP - DNS - DHCP - HTTP/S - SMTP - POP - IMAP - SSH - FTP - OpenVPN
I’m still new at this blogging thing:
Content may be a bit sparse while I’m getting up to speed. If you’ve got any tips or resources for blogging, feel free to get in touch. I’m also still working on the theme of the site (Had to be unique and go for a TMUX/Bash themed site).
Hiatus - Explained 2024-12-15
So, what’s up with the hiatus the past few years? Well, my career took a turn towards some proprietary stuff, that I couldn’t really find a way to share while keeping the secrets, well, secret, and with that taking a primary focus, I wound up not finding the time to document the personal projects that I barely had time to maintain....Read More
LSI SAS Utilities - Locating a Disk 2021-05-10
The Context: So, I had a failed disk in my ZFS array… sarahkat@srv:sas2ircu_linux_x86_rel $ zpool status pool: wolf state: DEGRADED status: One or more devices are faulted in response to persistent errors....Read More
ssh Login Banner 2020-08-27
Why create a login banner? Give users, or strangers, a quick little message before logging into your server. To enable the login banner, we will need to edit the ssh-server’s config file, /etc/ssh/sshd_config, with a line defining where to find the file containing our banner....Read More
SRV.HOME - Getting Started 2020-01-05
Chassis and Parts So far, I’ve got most of the stuff to get started sans a couple parts. I’m basing this build on the Dell R720XD - which recently became affordable on the second-hand market, and will be replacing my R710....Read More
Setting up PXE Booting 2019-08-08
Use PXE booting to boot computers via the network, requiring no local storage. Great for anything where a physical boot medium is inconvenient or impractical....Read More
Chronicles in Arch Linux 2018-12-18
As of this installment, I’ve been using Arch, however sparsely, for two weeks (Installed 2018-12-05, currently writing on 2018-12-18)...Read More
2048 and VIM 2018-10-07
First and foremost, I found this excellent version of the game, 2048, written in C. It’s fun to have this fun game playable on a Linux terminal - lightweight, no heavy graphics, just the bare essentials game....Read More
About This Site
This site serves several purposes: To be a portfolio of my projects To document projects as tutorials, for others as much as myself, as I can be forgetful about my past problems and solutions....Read More
Antenna Theory - Taking Pictures from Space
What’s really important, though, is the wavelength of this frequency, as it will determine the dimensions of our antenna. To calculate the wavelength (In meters), we devide 300 by the Frequency in MHz....Read More
Building the Antenna - Taking Pictures from Space
With the quarter wavelength figured out, we can make our fist steps towards construction. We will need to cut 8 lengths from our Copper 8 AWG Wire to this length of 54....Read More
Cloudflare Tunnels
So, I came across a situation where I wanted to expose web services through my cloudflare-managed domain without opening ports or messing with proxy hosts, etc....Read More
Distraction Free Youtube
Youtube does not offer a way to get your subscriptions as an RSS feed via anything built in. So I can use an RSS reader in combination with a browser extension to remove the suggested videos from youtube, I've made this script....Read More
Install a Custom CA
Why a custom certificate authority? With the several home servers that I have, a lot of them try to run self-signed SSL certificates....Read More
Remote access - No Port Forwarding
So, I found myself in a situation where it was… “inconvenient” to mess with the firewall situation, but I still had a system behind the firewall that I needed to be able to access remotely....Read More
SRV.HOME - Drives and Such
So I’ve been playing around… Alright, so the H310 from the Art of Server came through - after figuring out the latch on the motherboard, it was an easy drop-in replacement, and it is tested to be working fine....Read More
SRV.HOME - Setting up the operating system.
The R720XD has a couple drive bays in the back. These are 2.5” SFF drives. I am populating them with a couple repurposed 500GB Dell drives to fill the role of the operating system storage....Read More
SarahKat's Debian Packages
List of packages to install from the start: vim (full version of vim) tmux git chromium-browser Specific to i3 config: Manually Compile: * i3-gaps * Also required: xcb-util-xrm * 3status * playerctl...Read More
Setting up SarahKat's Linux Install | i3
Setting up SarahKat’s Linux Install Installing i3-gaps Install the prerequisite software to build i3 sudo apt install libxcb1-dev libxcb-keysyms1-dev libpango1....Read More
Uptime Monitoring with Webmin
Server monitoring with Webmin Getting tired of spending cash on a monitoring solution, and having stumbled through menus to find the “System and Server Status” module, I wanted to figure out how to utilize what was available to roll my own solution....Read More
pfSense, OpenVPN Bridge, and ProxyARP
So, I’m not sure why this is the case, but without setting up ProxyARP in the pfSense virtual IP’s menu, setting up OpenVPN the way I want does not work....Read More