System & Network Admin

System & Network Admin

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RADIUS Server for Enterprise Networks
RADIUS Server for Enterprise Networks
Explore the history of RADIUS, its role in PPP, its integration with 802.1X for wireless LANs, and the use of EAP in enhancing network security.
·tbhaxor.com·
RADIUS Server for Enterprise Networks
Blocking Bots with Nginx
Blocking Bots with Nginx
How I've automated updating the bot list to block access to my site
·rknight.me·
Blocking Bots with Nginx
Pairing with ChatGPT to help write a Postgres function
Pairing with ChatGPT to help write a Postgres function
Here’s the latest installment in the series on working with LLMS: It was only after I deployed the function and used it in three different dashboards that the penny finally dropped. This had …
·blog.jonudell.net·
Pairing with ChatGPT to help write a Postgres function
A Beginner's Guide to TextFSM for Network Automation
A Beginner's Guide to TextFSM for Network Automation
Introduction to TextFSM In this blog post, we will look at TextFSM, a tool that helps parse the raw data (semi-structured) we often get from network devices. If you've ever tried to use TextFSM documentation, you might know it can be a bit confusing. Therefore in this post, we'll go
·packetcoders.io·
A Beginner's Guide to TextFSM for Network Automation
How to Use 'ddrescue' Command to Recover Data in Linux
How to Use 'ddrescue' Command to Recover Data in Linux
In this article, I’ll guide you through the process of using ddrescue to recover data from a failing hard disk in simple, easy-to-follow steps.
·tecmint.com·
How to Use 'ddrescue' Command to Recover Data in Linux
One Line Fuzzy Find for Git Worktree
One Line Fuzzy Find for Git Worktree
Let's explore how to create a one-liner for fuzzy matching when navigating git worktrees.
·olafalders.com·
One Line Fuzzy Find for Git Worktree
How to Create and Use sudo Command in Linux
How to Create and Use sudo Command in Linux
The sudo command in Linux stands for “superuser do“, which allows a permitted user to execute a command as the superuser or another user.
·tecmint.com·
How to Create and Use sudo Command in Linux
Directory based config for easy git workflow
Directory based config for easy git workflow
A very common use case for a developer is to deal with multiple github accounts and hence multiple ssh keys. and this gets pretty painful quickly. I’ll show you how I manage multiple GitHub accounts easily by setting up different SSH keys and git configs for each project folder. This guide will help you avoid SSH key problems and make workflow for personal, work, and client projects much simpler.
·shobi.dev·
Directory based config for easy git workflow
Whose CIDR is it anyway?
Whose CIDR is it anyway?
A look at CIDR block ownership from a RIR-, country-, and organization level. Originally presented at RIPE88.
·netmeister.org·
Whose CIDR is it anyway?
Quality of Service (QoS) in Computer Networks: Boosting Performance
Quality of Service (QoS) in Computer Networks: Boosting Performance
Quality of Service (QoS) in computer networks provides network engineers with the means to prioritize latency-sensitive traffic flows. It is increasingly essential as bandwidth consumption soars. Learn more about it here.
·networkcomputing.com·
Quality of Service (QoS) in Computer Networks: Boosting Performance
What is the default password for Postgres
What is the default password for Postgres
I have just install Postgres 9.3 on Windows 7. The installation completed successfully. It has never asked me to provide the password for postgres user. The service postgresql-x64-9.3 is up and ru...
·stackoverflow.com·
What is the default password for Postgres
ffmpeg: Extract audio from .WEBM to .MP3 – Bytefreaks.net
ffmpeg: Extract audio from .WEBM to .MP3 – Bytefreaks.net
If you need to extract the audio from an .WEBM movie file to an .MP3 audio file you can  execute the following: The first command will assign the file name to a variable, we do this to avoid typing…
·bytefreaks.net·
ffmpeg: Extract audio from .WEBM to .MP3 – Bytefreaks.net
Linux Skills: Manage System Services
Linux Skills: Manage System Services
System administrators are responsible for service management on Linux devices. Here is what they need to know about configuration, startup options, security and more.
·thenewstack.io·
Linux Skills: Manage System Services
Linux Move Directory Command
Linux Move Directory Command
Describes how to use the mv command to move directory (folders) in Linux using the terminal application.
·cyberciti.biz·
Linux Move Directory Command
Quickly Visualize your AWS Costs
Quickly Visualize your AWS Costs
One of the most underappreciated APIs in AWS is the Cost Explorer API - specifically the GetCostAndUsage API. In essence, this API lets you fetch the same information you can get through the Cost Explorer GUI - but without the difficult UI/UX. This short blog post shows how you can leverage this programmatic access to the Cost Explorer to quickly build up powerful visualizations of your AWS costs directly from the CLI - and all you need is ce:GetCostAndUsage permissions.
·bitsand.cloud·
Quickly Visualize your AWS Costs
win-acme
win-acme
win-acme is a ACMEv2 client for Windows that aims to be very simple to start with, but powerful enough to grow into almost every scenario.
·win-acme.com·
win-acme