elRadix

Network Monitoring Tools

1. Monit
2. Ganglia
3. Munin
4. Cacti
5. Nagios
6. Zabbix
7. Observium
8. Zenoss
9. Collectd

elRadix

# log the default values:
echo "speed_limit_max: `cat /proc/sys/dev/raid/speed_limit_max`" #=> 200000
echo "speed_limit_min: `cat /proc/sys/dev/raid/speed_limit_min`" #=> 10000
echo "stripe_cache_size: `/sys/block/md2/md/stripe_cache_size`"  #=> 256

# update to use more RAM (Stripe Cache Size) and higher lower bound (speed_limit_min)
echo 100000 > /proc/sys/dev/raid/speed_limit_min
# This will result in more memory usage. bumping to 32768 resulted in ~512MB RAM increase.
echo 32768 > /sys/block/md2/md/stripe_cache_size

elRadix

Running docker-compose as a systemd service

Files

File	Purpose
/etc/compose/docker-compose.yml	Compose file describing what to deploy
/etc/systemd/system/docker-compose.service	Service unit to start and manage docker compose
/etc/systemd/system/docker-compose-reload.service	Executing unit to trigger reload on docker-compose.service
/etc/systemd/system/docker-compose-reload.timer	Timer unit to plan the reloads

elRadix

# Just an example how to check and upgrade the sonoff-tasmota from the Home Assistant
# Twitter link: https://goo.gl/e3y7pa
# 
# 1. Open your sonoff webinterface and add in the "Firmware Upgrade" menu following OTA Url, save! Example: https://goo.gl/6ZMjzA
# OTA Url: http://sonoff.maddox.co.uk/tasmota/sonoff.bin
#
# 2. Below the Home Assistant configuration:

script:   
  check_sonoffs_version:

elRadix

This script is a copy of https://marekbosman.com/site/automatic-update-of-cloudflare-ip-addresses-in-nginx/

# How to use?
```sh
wget https://gist.githubusercontent.com/AidasK/27aa5d6f918eca12d95427178b5aaa59/raw/e3ce185de43d89c237e081d3f56e5a79024b4115/cloudflare-update-ip-ranges.sh -P /usr/local/bin/
chmod +x /usr/local/bin/cloudflare-update-ip-ranges.sh
```

add `include /etc/nginx/cloudflare;` this line to /etc/nginx/nginx.conf (above include `/etc/nginx/conf.d/*.conf;`)
```sh

elRadix

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

elRadix

[
    {
        "id": "e6314782.bec858",
        "type": "mqtt in",
        "z": "2b42b2a.11da84e",
        "name": "Tautulli",
        "topic": "tautulli",
        "qos": "2",
        "broker": "37dc943f.c419dc",
        "x": 160,

elRadix

alias dcp='docker-compose -f /opt/docker-compose.yml '
alias dcpull='docker-compose -f /opt/docker-compose.yml pull --parallel'
alias dcplogs='docker-compose -f /opt/docker-compose.yml logs -tf --tail="50" '
alias df='df -h -x aufs -x tmpfs -x udev'
alias editle='sudo vi /opt/appdata/letsencrypt/nginx/site-confs/default'

elRadix

sudo -i
apt-get update
apt-get install -y apparmor-utils apt-transport-https avahi-daemon ca-certificates curl dbus jq network-manager socat software-properties-common
mkdir -p /etc/docker
echo '{"dns": ["8.8.8.8", "8.8.4.4"]}' > /etc/docker/daemon.json
curl -sSL https://get.docker.com | sh
curl -sL "https://raw.githubusercontent.com/home-assistant/hassio-build/master/install/hassio_install" | bash -s

elRadix

How to install virtualenv:

Install pip first

sudo apt-get install python3-pip

Then install virtualenv using pip3

sudo pip3 install virtualenv