doodaz

(Almost) automatically install oh-my-posh

This is a guide that helps you install oh-my-posh and its necessary boilerplate without deep dive to their documentation

In this guide, it is assumed that you have installed:

I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

This script can help you find and remove unused AWS snapshots and volumes.

There is hardcoded list of regions that it searches, adjust the value to suit your needs.

Use snapshot.py snapshot-report to generate report.csv containing information about all snapshots.

snapshot.py snapshot-cleanup lets you interactively delete snapshot if it finds it is referencing unexisting resources.

./snapshots.py --help

	# Simple script to list all RDS instances and then disable Automatic Minor Version Upgrades

	# list RDS instances to a file
	aws rds --region eu-west-1 describe-db-instances \| jq -r '.DBInstances[].DBInstanceIdentifier' > rds.log

	# loop over the items in the file, disable auto minor version upgrades
	while read rds; do
	aws rds modify-db-instance --region eu-west-1 --db-instance-identifier ${rds} --no-auto-minor-version-upgrade
	sleep 5
	done <rds.log

	------------------------------------------------------------------------------------------
	#CLI shortcut keystrokes(linux&MAC)
	Ctrl+L: Clear the screen. This is similar to running the “clear” command.
	Ctrl+C: Interrupt (kill) the current foreground process running in in the terminal. This sends the SIGINT signal to the process
	Ctrl+Z: Suspend the current foreground process running in bash. This sends the SIGTSTP signal to the process. To return the process to the foreground later, use the fg process_name command.
	Ctrl+D: Close the bash shell.This is similar to running the exit command
	Ctrl+L: Clear the screen. This is similar to running the “clear” command.

	Ctrl+S: Stop all output to the screen. This is particularly useful when running commands with a lot of long, verbose output, but you don’t want to stop the command itself with Ctrl+C.
	Ctrl+Q: Resume output to the screen after stopping it with Ctrl+S.

	#!/bin/bash

	#/ jc -- jconsole via ssh proxy
	#/
	#/ Usage: jc [options] HOST JMX_PORT [PROXY_PORT=JMX_PORT] [JMX_HOST=HOST]
	#/
	#/ Starts a SOCKS proxy via ssh to connect to a
	#/ JVM running on a remote and protected machine.
	#/
	#/ Arguments:

	#!/bin/bash

	if [ $# -ne 3 ]; then
	echo "You need to supply both JMX host and port and metric. Exiting ..."
	exit 1
	fi

	JAVA_BIN="/usr/bin/java"
	JMX_CMDLINE="/opt/ganglia/cmdline-jmxclient-0.10.3.jar"
	GMETRIC_BIN="/usr/bin/gmetric -d 180"

	$ mtr -c 20 -r -w -z x.x.x.x
	Start: Sat Dec 27 11:19:47 2014
	HOST: xxxxxx Loss% Snt Last Avg Best Wrst StDev
	<snip>
	3. AS11426 gig10-0-0-424.rlghnca-rtr2.nc.rr.com 0.0% 20 19.2 25.6 10.6 73.2 13.1
	4. AS11426 cpe-024-025-062-150.ec.res.rr.com 0.0% 20 14.2 14.3 10.8 36.4 5.3
	5. AS11426 be31.chrcnctr01r.southeast.rr.com 0.0% 20 16.7 20.6 16.7 23.5 1.8
	6. AS7843 bu-ether34.atlngamq46w-bcr00.tbone.rr.com 0.0% 20 28.5 24.7 20.6 33.9 3.6
	7. AS7843 bu-ether21.atlngamq47w-bcr01.tbone.rr.com 0.0% 20 27.6 25.7 22.2 32.8 3.0
	8. AS7843 107.14.17.190 0.0% 20 25.0 24.0 20.1 61.9 9.0