Anatoly Ivanov iAnatoly

create bot by messaging @botfather (/newbot)
save a token in env var: export token="yourtokenfrombotfather". If you need to re-issue a token, use /revoke command to botfather.
add your bot to a channel you intend for alerts
Send some message into that channel using telegram client. A simple "test" will do.
get chat id: curl https://api.telegram.org/bot${token}/getUpdates | grep test
send a test message: curl https://api.telegram.org/bot${token}/sendMessage --data '{"chat_id":${chat_id},"text": "message"}' -H "Content-type: application/json"
codify the above experience.

#!/bin/bash
set -eu -o pipefail

$ cat > TTS.json <<END
{
  "audioConfig": {
    "audioEncoding": "LINEAR16",
    "pitch": 0,
    "speakingRate": 1
 },

First, find out which is the encrypted LVM partition

cat /etc/crypttab

To add a new password, use luksAddKey:

sudo cryptsetup luksAddKey /dev/sda3

To remove an existing password, use luksRemoveKey:

	#!/usr/bin/env python3
	import socket
	import time

	userid = "trivial_sip_pinger"
	domain = "<sip server to test>"
	port = 5060
	timeout_ms = 1000

	sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

	#!/bin/bash

	TARGET_FILE_NUM=$1
	CURRENT_FILE_NUM=`ls -l \| wc -l`
	FILES_TO_GENERATE=$((TARGET_FILE_NUM - CURRENT_FILE_NUM))

	if [[ $FILES_TO_GENERATE -lt 0 ]]; then
	echo "We already have $CURRENT_FILE_NUM files, no need to generate more"
	exit
	fi

	https://stackoverflow.com/questions/614795/simulate-delayed-and-dropped-packets-on-linux
	https://wiki.linuxfoundation.org/networking/netem

	```bash
	TARGET1='8.8.8.8'
	DEV='eth0'

	tc qdisc delete dev $DEV root
	tc qdisc add dev $DEV root handle 1: prio

	go install -v github.com/projectdiscovery/dnsx/cmd/dnsx@latest
	go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
	brew install ipinfo-cli
	./go/bin/subfinder -d google.com \| ./go/bin/dnsx -resp-only \| ipinfo summarize

	SSH_ENV="$HOME/.ssh/agent-environment"

	function start_agent {
	echo "Initialising new SSH agent..."
	/usr/bin/ssh-agent \| sed 's/^echo/#echo/' > "${SSH_ENV}"
	echo succeeded
	chmod 600 "${SSH_ENV}"
	. "${SSH_ENV}" > /dev/null
	/usr/bin/ssh-add;
	}

	#!/bin/bash
	openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -sha256 -days 365 -nodes