fernandoaleman

For MacOS Catalina, visit Install mysql2 on MacOS Catalina

Problem

Installing mysql2 gem errors on MacOS Mojave.

Solution

Make sure openssl is installed on Mac via Homebrew.

nvgordeev

import os
import zipfile
import time


class FileStat:
    def __init__(self, filename, mod_time):
        self.name = filename
        self.mod_time = mod_time

Shourai

source: https://savedlog.com/uncategorized/letsencrypt-ssl-certificate-namecheap-hosting/

The “Positive SSL” certificate I bought along with my domain is invalid with any of my subdomains and cannot be used with wildcards. One annoying thing is that namecheap doesn’t offer auto installation of free let’s encrypt certificates, even though, they are saying “Namecheap is dedicated to data security and privacy for all internet users. We believe the movement to encrypt nearly all web traffic is a positive direction. As more sites embrace HTTPS and use of security products, providers of free SSL are beginning to come online.”

Let me show you what it needs to be done in order to “encrypt nearly all web traffic”.

First, not required but it’s helpful to enable ssh access, it is not enabled by default on the base hosting plans, just go an start a live chat and request ssh access.

vzaliva

#!/bin/bash

# Vadim Zaliva [email protected]
# based on https://gist.github.com/hadess/6847281

if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

ygotthilf

ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub

mkllnk

# Copied from http://blog.salsify.com/engineering/tearing-capybara-ajax-tests
# https://gist.github.com/jturkel/9317269/raw/ff7838684370fd8a468ffe1e5ce1f3e46ba39951/rack_request_blocker.rb

require 'atomic'

# Rack middleware that keeps track of the number of active requests and can block new requests.
class RackRequestBlocker

  @@num_active_requests = Atomic.new(0)
  @@block_requests = Atomic.new(false)

rioshen

public class Backtrack {
    public static List<List<Object>> backtrack(int[] A) {
        // Set up a list of list to hold all possible solutions
        List<List<Object>> result = new LinkedList<List<Object>>();
        if (A == null || A.length == 0) {
            return result;
        }

        // As we need to recursively generate every solution,
        // a variable is needed to store single solution.

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

choonkeat

var http = require('http');
var querystring = require('querystring');
var MailParser = require("mailparser").MailParser; // https://github.com/andris9/mailparser

var server = http.createServer();
server.addListener('request', function(req, res) {
  var chunks = [];
  req.on('data', chunks.push.bind(chunks));
  req.on('end', function() {
    var mailparser = new MailParser();