gwire

One annoyance of running a publically-accessible WordPress site is the bots that attempt to rapidly try thousands of login attempts via /wp-login.php.

Even if none of the guesses are ever likely to work, the site will waste resources running PHP and SQL to confirm that to be the case.

A barrier to these drive-by hack attempts can be added using nginx's http_limit_req, where rate limiting is applied only to POST requests for the login page, not affecting the rest of the site.

1. In /etc/nginx/conf.d/login-limit.conf we create the zone LOGINLIMIT. 1m is the size of the shared memory zone for tracking requests, and 15r/m limits to 15 requests per minute (ie 1 every 4 seconds).

gwire

<?php
/**
 * Mastodon accounts can be verified by adding a rel="me" link in the basic rendered html.
 * While a <link/> could be added, it seemed like the existing social-links block should be
 * the place to add it, but there's currently no way to specify "rel" values in the UI.
 *
 * Currently only adds to "mastodon" links, but could probably be added to others.
 */
add_filter('render_block', 'social_rel_me', 10, 2);
function social_rel_me($block_content, $block) {

martinchapman

# Visualise a latex document git history

# loop through commits, create a PDF from your main file for each
# translate the pages of that PDF to a single image
# create GIF/mp4 from the folder of images created

# run within your local repository
# prerequisites: ImageMagick and FFmpeg

# create output folder

mlent

<ul>
  <li>
    <a href="https://twitter.com/share?text=TITLE OF YOUR POST via @YOUR_USERNAME&url=HTTPS://YOUR_WEBSITE.COM" onclick="window.open(this.href, 'twitter-share', 'width=550,height=235'); return false;">
      Share on Twitter
    </a>
  </li>
  <li>
    <a href="https://news.ycombinator.com/submitlink?u=HTTP://YOUR_URL.COM&t=YOUR CONTENT" onclick="window.open(this.href, 'hn-share', 'width=550,height=350'); return false;">
      Share on Hacker News
    </a>

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

jaheba

#post-list .post .post__img {
    position: absolute;
    margin-left: -200px !important;
    display: block;
}

.post .post__img  img, img.markdown-inline-img {
    height: 20px !important;
    width: auto !important;

mitsuhiko

from sre_parse import Pattern, SubPattern, parse as sre_parse
from sre_compile import compile as sre_compile
from sre_constants import BRANCH, SUBPATTERN


class Scanner(object):

    def __init__(self, tokens, flags=0):
        subpatterns = []
        pat = Pattern()

chrisseaton

# This file modifies benchmark-ips to better accommodate the optimisation
# characteristics of sophisticated implementations of Ruby that have a very
# large difference between cold and warmed up performance, and that apply
# optimisations such as value profiling or other speculation on runtime values.
# Recommended to be used with a large (60s) warmup and (30s) measure time. This
# has been modified to be the default. Note that on top of that, it now runs
# warmup five times, so generating the report will be a lot slower than
# before.

# Code is modified from benchmark-ips

smarr

Introductory Material

• Add Graal JIT Compilation to Your JVM Language in 5 Steps, A Tutorial http://stefan-marr.de/2015/11/add-graal-jit-compilation-to-your-jvm-language-in-5-easy-steps-step-1/

• The SimpleLanguage, an example of using Truffle with great JavaDocs. It is the officle getting-started project: https://github.com/graalvm/simplelanguage

• Truffle Tutorial, Christan Wimmer, PLDI 2016, 3h recording https://youtu.be/FJY96_6Y3a4 Slides

jamesarosen

I have a project that's been happily chugging along on Travis for a while. Its .travis.yml looks something like

script:
  - node_modules/ember-cli/bin/ember test

I wanted to add a second parallel build that did something very different. I didn't want to run ember test with a different Ember version or some other flag. I wanted to run a completely different command. Specifically, I wanted to run LicenseFinder's audit.

Travis has great docs on customizing parallel builds, but nothing describes how to do two completely different commands.