senderle

So you want to modify the text of a PDF by hand...

If you, like me, resent every dollar spent on commercial PDF tools, you might want to know how to change the text content of a PDF without having to pay for Adobe Acrobat or another PDF tool. I didn't see an obvious open-source tool that lets you dig into PDF internals, but I did discover a few useful facts about how PDFs are structured that I think may prove useful to others (or myself) in the future. They are recorded here. They are surely not universally applicable --
the PDF standard is truly Byzantine -- but they worked for my case.

Drugoy

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

staaldraad

# Gawk version
# Remote
grep -v "rem_address" /proc/net/tcp  | awk  '{x=strtonum("0x"substr($3,index($3,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($3,i,2))}{print x":"strtonum("0x"substr($3,index($3,":")+1,4))}'

# Local
grep -v "rem_address" /proc/net/tcp | awk  '{x=strtonum("0x"substr($2,index($2,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($2,i,2))}{print x":"strtonum("0x"substr($2,index($2,":")+1,4))}'

# No Gawk
# Local
grep -v "rem_address" /proc/net/tcp  | awk 'function hextodec(str,ret,n,i,k,c){

mikejolley

<?php // Do not include this if already open!

/**
 * Code goes in theme functions.php.
 */
add_filter( 'woocommerce_get_order_item_totals', 'custom_woocommerce_get_order_item_totals' );

function custom_woocommerce_get_order_item_totals( $totals ) {
  unset( $totals['payment_method'] );
  return $totals;

mikejolley

<?php // Do not include this if already open!

/**
 * Remove existing tabs from single product pages.
 */
function remove_woocommerce_product_tabs( $tabs ) {
	unset( $tabs['description'] );
	unset( $tabs['reviews'] );
	unset( $tabs['additional_information'] );
	return $tabs;

mikejolley

<?php

// Code goes in theme functions.php or a custom plugin
add_filter( 'pre_option_woocommerce_enable_guest_checkout', 'conditional_guest_checkout_based_on_product' );

function conditional_guest_checkout_based_on_product( $value ) {
  $restrict_ids = array( 1, 2, 3 ); // Replace with product ids which cannot use guest checkout
  
  if ( WC()->cart ) {
    $cart = WC()->cart->get_cart();

mikejolley

add_filter( 'woocommerce_get_order_item_totals', 'adjust_woocommerce_get_order_item_totals' );

function adjust_woocommerce_get_order_item_totals( $totals ) {
  unset($totals['cart_subtotal']  );
  return $totals;
}

mikejolley

<?php

/**
 * WooCommerce Extra Feature
 * --------------------------
 *
 * Register a shortcode that creates a product categories dropdown list
 *
 * Use: [product_categories_dropdown orderby="title" count="0" hierarchical="0"]
 */

Tblue

#!/usr/bin/env python3
# vim: sw=4 ts=4 et tw=100 cc=+1
#
####################################################################################################
#                                           DESCRIPTION                                            #
####################################################################################################
#
# Decompressor/compressor for files in Mozilla's "mozLz4" format. Firefox uses this file format to
# compress e. g. bookmark backups (*.jsonlz4).
#

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.