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upstream frappe-bench-frappe {
	server 127.0.0.1:8000 fail_timeout=0;
}

upstream frappe-bench-socketio-server {
	server 127.0.0.1:9000 fail_timeout=0;
}

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// the easy way to have any subdomain without the need to generate new cert or add dns record everytime is to create CNAME 
for all subdomains using the * wildcard and then generate cert for all subdomain including the main domain with:

 sudo certbot -d *.example.com --preferred-challenges=dns-01 --agree-tos certonly --manual

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sudo apt-get update

sudo apt install php-xdebug

# [7.2] path may be different on your system, check it.
sudo nano /etc/php/7.2/mods-available/xdebug.ini


Add the following code into xdebug.ini file:
zend_extension=/usr/lib/php/20151012/xdebug.so # [20151012] path may be different on your system, check it.

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// put this code in your theme functions.php
add_filter( 'wpwhpro/run/actions/custom_action/return_args', 'wpwh_fire_my_custom_logic', 10, 3 );
function wpwh_fire_my_custom_logic( $return_args, $identifier, $response_body ){

	//If the identifier doesn't match, do nothing
	if( $identifier == 'update_status' ){
		$order_id = WPWHPRO()->helpers->validate_request_value( $response_body['content'], 'order_id' );
		$new_status = WPWHPRO()->helpers->validate_request_value( $response_body['content'], 'new_status' );
		$order = new WC_Order($order_id);
		

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sudo certbot certonly --manual --preferred-challenges=dns-01 --email email@gmail.com --server https://acme-v02.api.letsencrypt.org/directory --agree-tos -d *.site1.com -d *.site2.net

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first install xdebug:
sudo apt-get install php7.4-xdebug

edit config file with the following, also check the zend version (20190902) if it is different on your machine:
sudo nano /etc/php/7.4/mods-available/xdebug.ini

zend_extension="/usr/lib/php/20190902/xdebug.so"
xdebug.mode = debug
xdebug.start_with_request = yes

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#!/usr/bin/python3
import datetime
import os
import subprocess
import tempfile
import shutil
from dateutil.parser import parse


# Container names which you want to backup

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var temp = $.event.dispatch;

$.event.dispatch = function(event, arg2, arg3){
    // the event that is passed is the native event, if you want the jquery
    // event, you need the fixed event.
    console.log(jQuery.event.fix( event ), arg2, arg3);
    temp.call(this, event, arg2, arg3);
}

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--first install:
sudo apt install v4l2loopback-dkms
sudo apt install ffmpeg

--then run:
ffmpeg -loop 1 -re -i /path/to/picture.png -f v4l2 -vcodec rawvideo -pix_fmt yuv420p /dev/video0

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# first install required package
sudo apt-get install ippserver

# create working directory for example PDF
mkdir PDF

# example for working virtual printer
ippserver -2 -M "HP" -P -d /home/pop/PDF -k -c /home/pop/PDF -m "XM80" -n 127.0.0.1 -l "ipp://127.0.0.1:8085" -p 8085 -vvv "Dev Printer1"