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yemster / pt.md
Created November 14, 2022 15:35 — forked from denji/pt.md
Percona Toolkit Examples
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yemster / snapshotter.py
Created August 19, 2019 10:34 — forked from nguyendangminh/snapshotter.py
AWS EBS snapshotter
#!/usr/bin/env python
# Shameless copy from qwiklab
import boto.ec2, os, datetime
MAX_SNAPSHOTS = 2 # Number of snapshots to keep
# Connect to EC2 in this region
region = os.environ.get('EC2_REGION')
connection = boto.ec2.connect_to_region(region)
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yemster / gfonts-preview.html
Created August 15, 2019 08:11 — forked from jlogix/gfonts-preview.html
<!DOCTYPE html>
<html>
<head>
<title>Google Fonts Preview</title>
<style>
#preview {
margin: 0 auto;
text-align: center;
width: 80%;
}
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yemster / opera-vpn.md
Created October 7, 2017 20:14 — forked from spaze/opera-vpn.md
Opera VPN behind the curtains is just a proxy, here's how it works

When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.

When loading a page with Opera VPN enabled, the browser sends a lot of requests to de0.opera-proxy.net with Proxy-Authorization request header.

The Proxy-Authorization header decoded: CC68FE24C34B5B2414FB1DC116342EADA7D5C46B:9B9BE3FAE674A33D1820315F4CC94372926C8210B6AEC0B662EC7CAD611D86A3 (that's sha1(device_id):device_password, where device_id and device_password come from the POST /v2/register_device API call, please note that this decoded header is from another Opera installation and thus contains

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yemster / css-to-select-range-of-children.html
Created May 3, 2017 16:59 — forked from rondevera/css-to-select-range-of-children.html
CSS selector for a range of children
<!DOCTYPE html>
<html>
<head>
<style>
/* How to select a range of children
* (Here, 3rd-7th children, inclusive):
*/
ul li:nth-child(n+3):nth-child(-n+7) {
outline: 1px solid #0f0;
}
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yemster / gist:0848c37a6a280eb1b626dcbcff92dc62
Created March 8, 2017 12:12 — forked from tam7t/gist:86eb4793e8ecf3f55037
Securing Ruby's OpenSSL

Are your Ruby HTTPS API calls secure?

Let's check:

2.0.0-p481 :001 > OpenSSL::SSL::SSLContext::DEFAULT_PARAMS
 => {:ssl_version=>"SSLv23", :verify_mode=>1, :ciphers=>"ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW", :options=>-2147482625}
2.0.0-p481 :002 > rating = JSON.parse(RestClient::Resource.new("https://www.howsmyssl.com/a/check" ).get)['rating']
 => "Bad"
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yemster / fb-open-graph.liquid
Last active August 24, 2020 16:02 — forked from chrisjhoughton/fb-open-graph.liquid
Facebook Open Graph meta tags for Shopify. Add this as a snippet called "fb-open-graph.liquid" in your theme, and then add `{% render 'fb-open-graph' %}` to your `theme.liquid` file.
{% if template contains 'product' %}
<meta property="og:type" content="product">
<meta property="og:title" content="{{ product.title | strip_html | escape }}">
<meta property="og:category" content="{{ product.type }}" />
{% for image in product.images limit:3 %}
<meta property="og:image" content="http:{{ image.src | product_img_url: 'master' }}">
<meta property="og:image:secure_url" content="https:{{ image.src | product_img_url: 'master' }}">
{% endfor %}
<meta property="og:price:amount" content="{{ product.price | money_without_currency | stip_html | escape | remove: ',' }}">
<meta property="og:price:currency" content="{{ shop.currency }}">
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yemster / 0_reuse_code.js
Created May 12, 2016 10:21
Here are some things you can do with Gists in GistBox.
// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console
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yemster / schema_format.rake
Created March 17, 2016 10:22 — forked from vjt/schema_format.rake
Rails SQL schema load support for PostgreSQL. Put both files in `lib/tasks`.
import File.expand_path(File.dirname(__FILE__) + '/schema_format.rb')
namespace :db do
# Define PG environment utility methods
task :pg_env => :environment do
def pg_get_config
ActiveRecord::Base.configurations.fetch(Rails.env).tap do |config|
ENV['PGHOST'] = config['host'].to_s if config.key?('host')
ENV['PGPORT'] = config['port'].to_s if config.key?('port')
ENV['PGPASSWORD'] = config['password'].to_s if config.key?('password')
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yemster / metatags.html
Created November 10, 2015 09:57 — forked from itsbalamurali/metatags.html
18 Meta Tags Every Webpage Should Have in 2013
<title>Up to 70 Characters of Keyword-relevant text here</title>
<meta name=”description” content=”155 characters of message matching text with a call to action goes here”>
<meta name="author" content="" />
<meta name="copyright" content="&copy;" />
<link rel=”author” href=”https://plus.google.com/[YOUR PERSONAL G+ PROFILE HERE]“/>
<meta property=”og:title” content=”iAcquire’s awesome blog”/>
<meta property=”og:type” content=”article”/>
<meta property=”og:image” content=”http://www.iacquire.com/some-thumbnail.jpg”/>
<meta property=”og:url” content=”http://blog.iacquire.com”/>
<meta property=”fb:admins” content=”USER_ID”/>