mahfuz10

Creating bootable Linux USB using Mac

CentOS, Ubuntu, Slackware, etc. Whatever Linux-based OS it is, you can create a bootable USB for it by using a Mac.

1. Prepare the .iso file

Download it, copy it, whatever it takes to prepare that Linux-based OS .iso file

2. Convert the .iso file into a .img.dmg

mahfuz10

<template>
  <div class="chat-container"
       :class="activeChat ? 'selected' : ''"
       @click="$emit('chat:select', chat.id)" style="cursor: pointer">
    <div class="chat-card-header">
      <div class="chat-name">
        {{ otherUser }}
      </div>
      <div class="chat-updated">
        {{ chat.updated_at }}

mahfuz10

import 'dart:math';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';

class MarkerGenerator {
  final _markerSize;
  double _circleStrokeWidth;
  double _circleOffset;

mahfuz10

#!/bin/bash

if [ -z "$1" ]; then
    echo "Usage: git pr [clean] [<remote>] <id-or-url>"
    echo ""
    echo "Examples:"
    echo "git pr 42                                              -->  git fetch origin pull/42/head:pr/origin/42"
    echo "git pr upstream 42                                     -->  git fetch upstream pull/42/head:pr/upstream/42"
    echo "git pr https://github.com/peerigon/phridge/pull/1      -->  git fetch https://github.com/peerigon/phridge.git pull/1/head:pr/peerigon/phridge/1"
#     echo "git pr clean                                           -->  Deletes all branches that match pr/*/* and pr/*/*/*"

mahfuz10

API Documentation Example

This API uses POST request to communicate and HTTP response codes to indenticate status and errors. All responses come in standard JSON. All requests must include a content-type of application/json and the body must be valid JSON.

Response Codes

Response Codes

200: Success
400: Bad request
401: Unauthorized
404: Cannot be found

mahfuz10

psql: FATAL: Peer authentication failed for user “postgres” (or any user)

The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).

If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.

But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:

from

mahfuz10

<script>
/*
MIT License

Copyright (c) 2017 Stripe

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

mahfuz10

#encoding: utf-8
require "fileutils"
namespace :my_db do  desc "Backup project database. Options: DIR=backups RAILS_ENV=production MAX=7"
  desc "usage - bundle exec rake my_db:backup  RAILS_ENV=production MAX=15 DIR=db/db.bak"
  task :backup => [:environment] do
    # config base dir
    datestamp = Time.now.strftime("%Y%m%d%H%M")
    base_path = Rails.root
    backup_folder = File.join(base_path, ENV["DIR"] || "backups")
    FileUtils.mkdir_p(backup_folder) unless File.exist?(backup_folder)

mahfuz10

namespace :db do  desc "Backup project database. Options: DIR=backups RAILS_ENV=production MAX=7" 
  task :backup => [:environment] do
    datestamp = Time.now.strftime("%Y-%m-%d_%H-%M-%S")    
    base_path = Rails.root
    base_path = File.join(base_path, ENV["DIR"] || "backups")
    backup_base = File.join(base_path, 'db_backups')
    backup_folder = File.join(backup_base, datestamp)
    backup_file = File.join(backup_folder, "#{RAILS_ENV}_dump.sql")    
    FileUtils.mkdir_p(backup_folder)    
    db_config = ActiveRecord::Base.configurations[RAILS_ENV]    

mahfuz10

usage: 
  letsencrypt [SUBCOMMAND] [options] [-d domain] [-d domain] ...

The Let's Encrypt agent can obtain and install HTTPS/TLS/SSL certificates.  By
default, it will attempt to use a webserver both for obtaining and installing
the cert. Major SUBCOMMANDS are:

  (default) run        Obtain & install a cert in your current webserver
  certonly             Obtain cert, but do not install it (aka "auth")
  install              Install a previously obtained cert in a server