ntrepid8

LXC/LXD Notes

Some notes on how to install and configure lxc/lxd containers.

Read the 'getting started' docs first:

• https://linuxcontainers.org/lxd/getting-started-cli/

Lots of good examples:

• https://stgraber.org/2016/03/11/lxd-2-0-blog-post-series-012/

ntrepid8

#!/usr/bin/env bash

DATE_TAG="$(date -u +"%Y")-$(date -u +"%m")"
CSV_PATH="/home/$(whoami)/log/speedtest.$(hostname).${DATE_TAG}.csv"
LOG_PATH="/home/$(whoami)/log/speedtest.$(hostname).${DATE_TAG}.csv.log"

# ensure the path exists
mkdir -p $(dirname "${CSV_PATH}")

# add the header row if the file does not exist

ntrepid8

#!/usr/bin/env python
import fileinput
import datetime

input_lines = []
for line in fileinput.input():
    input_lines.append(line)

ping_key,ping_val,ping_unit = input_lines[0].split(" ")
download_key,download_val,download_unit = input_lines[1].split(" ")

ntrepid8

#!/usr/bin/env bash

LOG_PATH="/home/$(whoami)/log/speedtest.log"

if result=$(/usr/bin/speedtest --simple); then
  parsed_result=$(printf "${result}\"" | sed ':a;N;$!ba;s/\n/" /g' | sed 's/: /="/g')
  printf "[$(date)] ${parsed_result}\n" >> "${LOG_PATH}"
else
  printf "[$(date)] error\n" >> "${LOG_PATH}"
  exit 1

ntrepid8

How to play movie disks on Ubuntu 16.04

To remind me how I got video playback workin on Ubuntu 16.04 for video disks.

DVD

$ sudo apt install vlc libdvd-pkg
$ sudo dpkg-reconfigure libdvd-pkg

ntrepid8

ecryptfs-tips

automout home and source profile when SSH login:

• https://askubuntu.com/questions/153807/ecryptfs-and-ssh-pubkey-login-how-automount-and-other-stuff/153815
• https://stephen.rees-carter.net/thought/encrypted-home-directories-ssh-key-authentication

ntrepid8

USB Tips

Helpful info for working with ISO images and USB formatting/partitioning.

Recover if MBR/GPT is corrupted

• https://askubuntu.com/questions/781223/physical-block-size-is-2048-bytes-but-linux-says-it-is-512-when-formatting-a

ntrepid8

#!/usr/bin/env bash

# Create a static route for a given host/domain over a specific network interface.
# Put this script in /etc/network/if-up.d/host-interface-route so it runs when the interface comes up
# Script was developer for Ubuntu 16.04 LTS running Network Manager (Gnome 3)

# I use this script to prevent my VPN connections from interfering with automatic reverse SSH tunnles
#  to my jump box running in the cloud.

# network interface to target

ntrepid8

[alias]
	co = checkout
	ci = commit
	st = status
	br = branch
	s = status
	ls = branch --sort=committerdate
	lsa = branch --list --sort=committerdate --all
        lsr = branch --list --sort=committerdate --remotes
	f = fetch

ntrepid8

Git/GitHub Pro Tips

Checkout github pull requests locally:

• https://gist.github.com/piscisaureus/3342247

Local analytics for git repos:

• https://github.com/ejwa/gitinspector

Replace local branch with remote branch: