craigvantonder

Unbound Cheat Sheet

Installation

$ yum install -y unbound

Setup SSL keys for unbound-control

craigvantonder

use postgres_types::{Type, ToSql, FromSql, IsNull, to_sql_checked};
use bytes::BytesMut;
use std::error::Error;

#[derive(Debug)]
struct RawValue<'a> {
    type_: Type,
    raw: Option<&'a [u8]>,
}

craigvantonder

On the remote machine, listen on a specific port:

nc -vul 1234

On the host machine, connect to the same port:

nc -u the.remote.ip.addr 1234

Then still on the host you can type anything, i.e. hello and press enter. On the on the remote machine you will see:

craigvantonder

# Eternal bash history.
# ---------------------
# Undocumented feature which sets the size to "unlimited".
# http://stackoverflow.com/questions/9457233/unlimited-bash-history
export HISTFILESIZE=
export HISTSIZE=
export HISTTIMEFORMAT="[%F %T] "

# Change the file location because certain bash sessions truncate .bash_history file upon close.
# http://superuser.com/questions/575479/bash-history-truncated-to-500-lines-on-each-login

craigvantonder

May 19 2022

Attempting to download the application at http://www.pixeluvo.com/download/ whilst using Ubuntu 22.04, the user is prompted:

Download the Pixeluvo installer for Windows (Please note we are not able to offer a Linux version at this time)

Having obtained a paid licence (absolutely worth it) and the 1.6 deb file with the application installed, when attempting to run the application:

$ pixeluvo

craigvantonder

I am using NodeJS in Ubuntu via NVM and was having and issue with sass-lint in Sublime Text 3, the console shows:

SublimeLinter: WARNING: sass cannot locate 'sass-lint'
Please refer to the readme of this plugin and our troubleshooting guide: http://www.sublimelinter.com/en/stable/troubleshooting.html

Reading the issue on the source repository over here: SublimeLinter/SublimeLinter#128 (comment)

Means that we can do the following in the user configuration for SublimeLinter:

{

craigvantonder

// https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Introducing
var inputString = 'Hello World';

function callbackStyleFunction (input, cb) {
  //if (someErrorCondition) return cb('something bad happened');
  cb(null, input);
};

const promiseStyleFunction = function (input) {
  return new Promise(function (resolve, reject) {

craigvantonder

#!/bin/bash

# How can I fully log all bash scripts actions?
# https://serverfault.com/a/103569/210437

if test -S "/absolute/path/to/ssh_control_socket"; then
  echo 'It exists'
fi

# Why can't bash recognize the existence of a socket file

craigvantonder

Takes a long time to load project folders running in a VM and the sublime console shows:

    inotify_add_watch failed: No space left on device (path: /some/project/location/...)

https://github.com/google/cadvisor/issues/1581#issuecomment-367616070

    sudo cat /proc/sys/fs/inotify/max_user_watches # default is 8192 
    sudo sysctl fs.inotify.max_user_watches=1048576 # increase to 1048576

https://github.com/google/cadvisor/issues/1581#issuecomment-436405681

craigvantonder

find /path/to -depth -name "*.jpeg" -exec sh -c 'mv "$1" "${1%.jpeg}.jpg"' _ {} \;