vpnwall-services

ENCRYPT-DECRYPT-101

• GPG

Make GPG read input from tty instead of GUI

export GPG_TTY=$(tty)

Encrypt

tar -cvzf - folder | gpg -c > folder.tar.gz.gpg

Decrypt

gpg -d folder.tar.gz.gpg | tar -xvzf -

vpnwall-services

VIM 101 - VIM Cookbook - Helpful commands

• Replace all contiguous spaces with a ; s/ \{2,}/ /g

• Vim replay macro until end of buffer VG:normal @x

• Consecutive SED

vpnwall-services

GIT 101 - GIT Cookbook - Helpful commands

• Crete branch, work, merge and delete

git checkout -b user/fix
echo fart >> new_file
git checkout master
git merge user/fix
git push -u origin master

vpnwall-services

or delicacies too choice for the manual.

TOC

• Find the maximal elements of an array or stream
• Using jq as a template engine
• Emit the ids of JSON objects in a Riak database
• Filter objects based on the contents of a key
• Filter objects based on tags in an array
• Find the most recent object in an S3 bucket
• Sort by numeric values extracted from text

vpnwall-services

• Debian Wheezy deb http://archive.debian.org/debian wheezy main

vpnwall-services

FILESHARE 101

• Install packages

apt install nfs-common rpcbind nfs-kernel-server -y

• Add share in /etc/exports

vpnwall-services

• Install telegram on desktop
• Message @botfather and then /newbot (give name, and other things)
• Create new channel and add the bot
• Get channel ID

curl -L https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/getUpdates

• Add to .bashrc

vpnwall-services

ELASTICSEARCH 101

• Purge unassigned shards curl -XGET http://localhost:9200/_cat/shards | grep UNASSIGNED | awk {'print $1'} | xargs -i curl -XDELETE "http://localhost:9200/{}"

• Increase numbers of shards https://www.elastic.co/guide/en/elasticsearch/reference/7.17/size-your-shards.html

PUT _cluster/settings
{
  "persistent" : {

vpnwall-services

## https://partiallydisassembled.net/posts/filebeat-fields.html

• Check all:

sudo filebeat export template

vpnwall-services

LOGSTASH 101

• Debug pipeline:

input {
  pipeline {
    address => apache2
  }
}