lnxd

UniFi Backup Decryption

Overview

Ubiquiti backup files are encrypted, but the keys are currently static and public rather than per site or per device. I have tested both keys against my own backups.

File Structure

Legacy "UniFi Network" controller backup (.unf)

lnxd

#!/usr/bin/env python3
#
# chatgpt_citations_to_md.py  –  Convert ChatGPT Deep Research citations to Markdown footnotes.
# Author: lnxd
# Source: https://gist.github.com/lnxd/1e739b4d218909bc9d9d82681c9d8830
# License: MIT
#
# Deep Research wraps inline citations with private-use Unicode delimiters:
#   U+E200 (open) · U+E202 (separator) · U+E201 (close)
# These are invisible in most editors but show as [?] boxes in some renderers.

lnxd

UniFi Gateway IDS/IPS Memory Profiling

Overview

Comparative analysis of Suricata IDS/IPS memory consumption across two UniFi gateway models tested approximately two weeks apart. Focuses on per‑category memory impact, cgroup limits, fail‑closed behaviour on OOM, and the observed link between scheduled speed tests and memory spikes.

• Per‑category memory impact for Emerging Threats rulesets
• UDM‑SE (4 GB) vs UCG‑Ultra (3 GB) comparison
• Production outages linked to auto speed‑test spikes
• Cgroup resource limits and OOM behaviour
• Methodology: 60–90 s stabilisation after each restart

lnxd

#Requires -Version 5.1
#
# Note that this has not been tested since Aug 2025 and is likely outdated.
#
# Claude Code on Windows (native, no WSL)
# - Installs Git for Windows (Bash), ripgrep
# - Sets CLAUDE_CODE_GIT_BASH_PATH
# - Installs Claude Code native binary
# - Adds safe "ask" permission rules for running PowerShell scripts

lnxd

Character-Set Limitation

Critical: Except when foreign letters are expressly required (e.g., Greek symbols in maths or when translating), limit all output according to the rules below.

Allowed exceptions to the rule

• Accented Latin letters (á, é, ñ, ü, etc.) when writing in languages that use them
• Mathematical and technical symbols (±, ×, √, ∑, etc.) and the Greek alphabet ONLY when required to document mathematical formulas
• Non-Latin scripts (Cyrillic, Chinese, Arabic, etc.) if translating

lnxd

Virtual Cameras in Frigate

Create extra views (sky-only, cropped, perspective-corrected, etc.) from one physical camera. Handy, but very resource intensive.

---

Contents

• Implementation
• Performance Review

lnxd

#!/usr/bin/env bash
#
# update-pve.sh  – Fully update a Proxmox VE node.
# Author: lnxd
# Source: https://gist.github.com/lnxd/6bd46f1913b151e73d1836d4924c15bf
#
# USAGE
#   sudo ./update-pve.sh                # update, NO reboot
#   sudo ./update-pve.sh --reboot       # update, reboot only if required
#   sudo ./update-pve.sh --reboot-now   # update, always reboot

lnxd

#!/bin/zsh

# ====================
# Privacy Protection Script
# Author: lnxd
# https://gist.github.com/lnxd/7f0b1978752e99dedeff4a920410ea6d
# ====================

echo "- Starting Privacy Protection Script"

lnxd

lnxd@zt:~# /usr/sbin/zerotier-cli join {network}
200 join OK
lnxd@zt:~# zerotier-cli listnetworks
200 listnetworks <nwid> <name> <mac> <status> <type> <dev> <ZT assigned ips>

Check logs with:

journalctl -u zerotier-one

lnxd

#!/bin/bash

REPO_URL="https://api.github.com/repos/TA-Lib/ta-lib/commits"
OUTPUT_FILE="changelog.txt"

AUTH_HEADER=""
[ -n "$GITHUB_TOKEN" ] && AUTH_HEADER="-H 'Authorization: token $GITHUB_TOKEN'"

eval curl -s $AUTH_HEADER "$REPO_URL?per_page=100&page=1" | jq -r '
  .[] |