Linux things to check

Intro

Just another list

Patching

• Patchman
• opsi client management system
• uyuni

Automation

• saltstack

Network

• sntop: simple network top
• ntopng: High-Speed Web-based Traffic Analysis and Flow Collection

The other container solution

Normaly we only think about docker containers if we want to containerize something in linux. But there are more options lxd/lxc is one of those other solutions.

Where docker containers are mostly used to start one process, lxd containers are more like containerized...

Python packages i want to remember!!!

Intro

Just a place to create a list of python packages that could be handy in the future.

a lot of these packages i heard on the Python Bytes podcast link

List python

• pympler measure, monitor and analyze the memory behavior of Python objects in a ...

Machine learning list

Intro

These are project i want to do a little bit more with, about machine learning

Programming

• Machine learning course
• AI note taking app that runs locally
• Build you're first machine learning model with python in 7 minutes
• Awesome machine learning curated list
...

Study list/todo list

Intro

I need somewhere a list to remember things that i want to learn more off, i have a bunch of lists, so now one more list.

Linux

• socat https://www.pentestpartners.com/security-blog/socat-fu-lesson/
• dagger https://github.com/dagger/dagger
• mitmproxy to swagger ht...

Install older version of package on ubuntu/debian

Intro

I had a problem installing gitlab-ce a newer version, because it was a mayor update you first needed to install a older version.

Fixing it

Mermaid examples

Intro

Mermaid is a easy way to create easy graphics like flowcharts

For example

flowchart TD
  start([Start]) -->
  declare1(Declare variables a, b and c) -->
  assign1[/Assign a, b and c/] -->
  condition1{Is a>b?} -- False -->
  condition1_false{Is c>b?} -- False -->
  pri...

Bridge Mosquitto mqtt to hivemq

Intro

How to bridge a local mosquitto mqtt broker to a free hivemq cloud bridge

Debian installatie

apt-get install mosquitto

To install the package

Change the mosquitto config file /etc/mosquitto/mosquitto.conf

connection cloudmqtt
address .hive...

Varnish cheat sheet

Intro

How to see caching stats etc.

Varnish

• show hitratio rate

  varnishstat

  Hitrate ratio: 10 100 1000 Hitrate avg: 0.3373 0.3012 0.3400

This Means the last 10 seconds we have a hitrate of 33.73% and the last 100 seconds only 30.12%...

Tmux cheat sheet

Intro

I am trying to use tmux more than screen, but a cheat sheet could be usefull.

Quick and dirty tmux

• detach from window

  ctrl-b d

• list sessions

  tmux ls

• connect to session

  tmux at -t

• create session

  tmux new -s "session_name" "co...

Bash locking

Intro

Once in a while i want to start a bash script and make sure it one at a time. So searching for solution for creating a lock file in bash, you want to have a solution that doesn't create a race condition.

Explanation

Start defining which lockfile you want to use

export...

Bash debugging

Introduction

Once in a while i need to debug a bash script that i wrote, but i need to search how to get the line number of debug to a file, so easier for me to put it in mij blog, maybe it will help somebody else also.

Howto

Enable debugging

set -x

Add line numbers

...