Vir QuynhVir

## systemd_service_hardening.md

      
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                QuynhVir
                / systemd_service_hardening.md
            
            
              Created
              December 9, 2021 01:59
                — forked from ageis/systemd_service_hardening.md
            
              
                Options for hardening systemd service units
              
          
    security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:
NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict


## decrypt.js
const dpapi = require("win-dpapi")
const sqlite3 = require("sqlite3")
const os = require("os")
const fs = require("fs")
const crypto = require("crypto")

const path =
  os.homedir() + `\\AppData\\Local\\Google\\Chrome\\User Data\\Default\\Cookies`

db = new sqlite3.Database(path)

## FFMPEG MP4 to HLS Conversion.md

      
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                QuynhVir
                / FFMPEG MP4 to HLS Conversion.md
            
            
              Created
              August 2, 2021 16:27
                — forked from lukebussey/FFMPEG MP4 to HLS Conversion.md
            
          
    Direct copy of pre-encoded file:
$ ffmpeg -i filename.mp4 -codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls filename.m3u8

  
## remove_GPS_coordinates_from_EXIF.sh
exiftool -gps:all= -r -ext heic .

## I_will_find_you_and_I_will_kill_you.sh
# Count: find . -type f -size -50c -printf 1 | wc -c
# `b'    for 512-byte blocks (this is the default if no suffix is used)

# `c'     for bytes
# `w'     for two-byte words
# `k'     for Kilobytes (units of 1024 bytes)
# `M'     for Megabytes (units of 1048576 bytes)
# `G'     for Gigabytes (units of 1073741824 bytes)

find . -type f -size -50c -delete

## README.md

      
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                QuynhVir
                / README.md
            
            
              Created
              April 3, 2021 06:03
                — forked from tombigel/README.md
            
              
                How to Change Open Files Limit on OS X and macOS Sierra (10.8 - 10.12)
              
          
    How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x
The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine
https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/
Mac OS X

To check the current limits on your Mac OS X system, run:


## genEdDSA.sh
openssl genpkey -algorithm ed25519 -out private.pem
openssl pkey -in private.pem -pubout

## fix.sh
# Install locales-all package
sudo apt-get install -y locales-all

# Set environment variables
export LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

# Generate en_US.UTF-8
sudo locale-gen en_US.UTF-8

## keys.sh
# Get the public key (only if the public key is not yet in your keychain)
gpg --card-edit
fetch
quit

# Create a stub for the secret key in your keychain
gpg --card-status

# Use the (secret) key as if it was in your keychain

## AdbCommands
adb help // List all comands

== Adb Server
adb kill-server
adb start-server

== Adb Reboot
adb reboot
adb reboot recovery
adb reboot-bootloader
	const dpapi = require("win-dpapi")
	const sqlite3 = require("sqlite3")
	const os = require("os")
	const fs = require("fs")
	const crypto = require("crypto")

	const path =
	os.homedir() + `\\AppData\\Local\\Google\\Chrome\\User Data\\Default\\Cookies`

	db = new sqlite3.Database(path)
	# Count: find . -type f -size -50c -printf 1 \| wc -c
	# `b' for 512-byte blocks (this is the default if no suffix is used)

	# `c' for bytes
	# `w' for two-byte words
	# `k' for Kilobytes (units of 1024 bytes)
	# `M' for Megabytes (units of 1048576 bytes)
	# `G' for Gigabytes (units of 1073741824 bytes)

	find . -type f -size -50c -delete
	openssl genpkey -algorithm ed25519 -out private.pem
	openssl pkey -in private.pem -pubout
	# Install locales-all package
	sudo apt-get install -y locales-all

	# Set environment variables
	export LANGUAGE=en_US.UTF-8
	export LANG=en_US.UTF-8
	export LC_ALL=en_US.UTF-8

	# Generate en_US.UTF-8
	sudo locale-gen en_US.UTF-8
	# Get the public key (only if the public key is not yet in your keychain)
	gpg --card-edit
	fetch
	quit

	# Create a stub for the secret key in your keychain
	gpg --card-status

	# Use the (secret) key as if it was in your keychain
	adb help // List all comands

	== Adb Server
	adb kill-server
	adb start-server

	== Adb Reboot
	adb reboot
	adb reboot recovery
	adb reboot-bootloader