charlesroper

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

susam

Recon and Attack Vectors from My Logs

This document contains excerpts from my web server logs collected over a period of 7 years that shows various kinds of recon and attack vectors.

There were a total of 37.2 million lines of logs out of which 1.1 million unique HTTP requests (Method + URI) were found.

$ sed 's/^.* - - \[.*\] "\(.*\) HTTP\/.*" .*/\1/' access.log > requests.txt

noahp

Caveats

• NOTE: I had to reboot after doing this to eliminate display artifacts.
• Also, the dock doesn't appear to support using both of the displayport ports simultaneously :'(
• And MST (https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST) ) doesn't seem to work on this dock, so you can't daisy chain monitors.

TLDR

1. download driver from http://www.displaylink.com/downloads/ubuntu
2. unpack

fay59

Here's a list of mildly interesting things about the C language that I learned mostly by consuming Clang's ASTs. Although surprises are getting sparser, I might continue to update this document over time.

There are many more mildly interesting features of C++, but the language is literally known for being weird, whereas C is usually considered smaller and simpler, so this is (almost) only about C.

1. Combined type and variable/field declaration, inside a struct scope [https://godbolt.org/g/Rh94Go]

struct foo {
   struct bar {
 int x;

amboutwe

<?php
/********* DO NOT COPY THE PARTS ABOVE THIS LINE *********/

/* Change size for Yoast SEO OpenGraph image for all content 
 * Credit: Yoast Development team
 * Last Tested: May 19 2020 using Yoast SEO 14.1 on WordPress 5.4.1
 * Accepts WordPress reserved image size names: 'thumb', 'thumbnail', 'medium', 'large', 'post-thumbnail'
 * Accepts custom image size names: https://developer.wordpress.org/reference/functions/add_image_size/
 */
 

cstroe

A distilled list of open-source CRM software

Source: https://opensource.com/business/16/2/top-6-open-source-crm-tools-2016 + community contributions

EspoCRM `github.com/espocrm/espocrm`_ PHP https://www.espocrm.com

jatcwang

! model
  pc101           Generic 101-key PC
  pc102           Generic 102-key (Intl) PC
  pc104           Generic 104-key PC
  pc105           Generic 105-key (Intl) PC
  dell101         Dell 101-key PC
  latitude        Dell Latitude series laptop
  dellm65         Dell Precision M65
  everex          Everex STEPnote
  flexpro         Keytronic FlexPro

slogsdon

# Basic setup to copy Wordpress files,
# expected to be at '.', into the image
FROM orchardup/php5
ADD . /code

drhelius

MEMPTR, esoteric register of the ZiLOG Z80 CPU.
by Boo-boo (first and draft English translation by Vladimir Kladov)

  As it is known, after the instruction BIT n,(HL) execution, bits 3 and 5 of the flag register become containing values that is not documented in the official documentation at all. Actually these bits are copied from the bits 11 and 13 of the internal register pair of Z80 CPU, which is used for 16-bit operations, and in most cases to handle addresses. This is usual practice for processors having 8-bits data bus working with 16-bits data.
  It is not known why and how these bits of the internal buffer register are copied to the flags register though. At least Sean Young in the "Undocumented Z80 Documented" refers to that phenomenon (http://www.myquest.nl/z80undocumented/) and a bit more info can be found in the Z80 description of another "nocash" project (http://www.work.de/nocash/zxdocs.htm) where such register pair is called as MEMPTR. Unfortunately until now attemts to crack the algorithm se

ryansechrest

# BEGIN WordPress
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /

    # Prevent requests to index.php from being rewritten
    RewriteRule ^index\.php$ - [L]

    # Prefix specified PHP files with 'wordpress'
    RewriteRule ^((wp-login|xmlrpc)\.php) wordpress/$1 [R=301,L]