imgeraldalinio

Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Scaling Twitter: Making Twitter 10000 Percent Faster
• Scaling Twitter
• Blaine Cook on Scaling Twitter - YouTube

imgeraldalinio

MySQL

Getting started

• http://www.sqlteaching.com/
• https://www.codecademy.com/learn/learn-sql

Related tutorials

• MySQL-CLI
• Analyzing Business Metrics
• SQL joins infografic

imgeraldalinio

global
	log /dev/log	local0
	log /dev/log	local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon
	maxconn 2048

imgeraldalinio

#
# This is the ultimate HAProxy 2.0 "Getting Started" config
# It demonstrates many of the features available which are now available 
# While you may not need all of these things, this can serve
# as a reference for your own configurations.
#
# Have questions?  Check out our community Slack:
# https://slack.haproxy.org/
#

imgeraldalinio

<VirtualHost *:80>
     ServerAdmin admin@example.com
     DocumentRoot /var/www/wordpress
     ServerName example.com
     ServerAlias www.example.com

     <Directory /var/www/wordpress/>
        Options +FollowSymlinks
        AllowOverride All
        Require all granted

imgeraldalinio

define('AUTH_KEY',         'e-9mU8FzzyD7;89|;d5!}5vR-<KGlV:[C:El4XeJG7!D9@ V5p-:F`oPeQ$`;WVN');
define('SECURE_AUTH_KEY',  '$3|%C9X:!67+N=w|brb*[`C:QQODY-qg=NLTl@+/A)Iuxg< |=HOsaL4-4DFu:k<');
define('LOGGED_IN_KEY',    'C<g>(!)=rlBuQ%a]}~HX1/Z=,$p^WVaj )nU0!KVyE?PKom}T0j`D&S9<WQx([5i');
define('NONCE_KEY',        '!1,gPH:m;o~mNB(Uu+BOAxT9}fZKcOVWs^y1Yb:+X;0[VV4d42xh/|Ocawt@@k9+');
define('AUTH_SALT',        'LzXAtk+AL~G*Fj.DEANk%THZf@eul+jpv1A_u59`e:AH;aRL=gI9J@BpY{M[ON|h');
define('SECURE_AUTH_SALT', 'yiHB&2#e%7b,QTH33[O1u}R?FC97LLu2+ma!oH`40T}W-l}+N-=<VmAJ04a|mx14');
define('LOGGED_IN_SALT',   '=AINX^{7lb/$j|HjCOR)^)XBl[s:I(@B!}Wez7s-On5kY)x=an-J~SeLB7:M/K.]');
define('NONCE_SALT',       'Rlgt+LcGgcMFhFo&FuEB8KfZgS7_Ml]=5&sJN!k#&J3o6GFeFx%7T|aLH@L_NiEw');

imgeraldalinio

-rw-------  1 www-data ubuntu 420 Nov 30  2017 .htaccess
-rw-r-----  1 www-data ubuntu 420 Nov 30  2017 index.php
-rw-r-----  1 www-data ubuntu 19935 Jan  1  2019 license.txt
-rw-r-----  1 www-data ubuntu 7447 Apr  8 22:59 readme.html
-rw-r-----  1 www-data ubuntu 6919 Jan 12  2019 wp-activate.php
drwxr-x---  9 www-data ubuntu 4096 Sep  5 01:08 wp-admin/
-rw-r-----  1 www-data ubuntu 369 Nov 30  2017 wp-blog-header.php
-rw-r-----  1 www-data ubuntu 2283 Jan 21  2019 wp-comments-post.php
-rw-r-----  1 www-data ubuntu 2898 Jan  8  2019 wp-config-sample.php
-rw-------  1 www-data ubuntu 2898 Sep 15 04:36 wp-config.php

imgeraldalinio

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": ["s3:ListBucket"],
      "Resource": ["arn:aws:s3:::MyS3Bucket"]
    },
    {
      "Effect": "Allow",

imgeraldalinio

global
        log /dev/log    local0
        log /dev/log    local1 notice
        chroot /var/lib/haproxy
        stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
        stats timeout 30s
        user haproxy
        group haproxy
        daemon

imgeraldalinio

# generated 2020-05-12, Mozilla Guideline v5.4, HAProxy 2.1.4, OpenSSL 1.1.1, intermediate configuration, no OCSP
# https://ssl-config.mozilla.org/#server=haproxy&version=2.1.4&config=intermediate&openssl=1.1.1&ocsp=false&guideline=5.4
global
    # intermediate configuration
    ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
    ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
    ssl-default-bind-options no-sslv3 no-tlsv10 no-tlsv11 no-tls-tickets

    ssl-default-server-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
    ssl-default-server-ciphersuites TLS_AES_128_GCM_S