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//* http://gasolicious.com/remove-tabs-keep-product-description-woocommerce/
//  Location: add to functions.php
//  Output: removes woocommerce tabs

remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_product_data_tabs', 10 );

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Enabling mod_expires

  a2enmod expires

Configuring mod_expires

If you have multiple file types that should expire after the same time after they have been accessed (let's say in one week), 
you can use a combination of the FilesMatch and the ExpiresDefault directives, e.g. as follows:

  <IfModule mod_expires.c>

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<?php

require dirname(__FILE__).'/wp-blog-header.php';

$wpdb->query("DELETE FROM wp_terms WHERE term_id IN (SELECT term_id FROM wp_term_taxonomy WHERE taxonomy LIKE 'pa_%')");
$wpdb->query("DELETE FROM wp_term_taxonomy WHERE taxonomy LIKE 'pa_%'");
$wpdb->query("DELETE FROM wp_term_relationships WHERE term_taxonomy_id not IN (SELECT term_taxonomy_id FROM wp_term_taxonomy)");
$wpdb->query("DELETE FROM wp_term_relationships WHERE object_id IN (SELECT ID FROM wp_posts WHERE post_type IN ('product','product_variation'))");
$wpdb->query("DELETE FROM wp_postmeta WHERE post_id IN (SELECT ID FROM wp_posts WHERE post_type IN ('product','product_variation'))");
$wpdb->query("DELETE FROM wp_posts WHERE post_type IN ('product','product_variation')");

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Export

  mysqldump -u user -pupasswd my-database | gzip -c > dbfile.sql.gz

  Multiple parts:
  mysqldump -u user -pupasswd my-database | gzip -c > one.gz; gzip -c one.gz > two.gz; gzip -c two.gz > three.gz


Import
  zcat /path/to/file.sql.gz | mysql -u 'root' -p your_database

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Apache2Buddy is a great tool that checks your server setup and performance and makes a report and suggestions based on the information it collects. It calculates the MaxRequestWorkers on remaining RAM, not total installed RAM.

curl -sL https://raw.githubusercontent.com/richardforth/apache2buddy/master/apache2buddy.pl | perl

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$ sudo tasksel install lamp-server

MySQL Secure Installation: 
mysql_secure_installation 


Firewall Configuration:
Enable firewall:
$ sudo ufw enable

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- sudo git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt
- cd /opt/letsencrypt
- Cert Only: sudo -H ./letsencrypt-auto certonly --standalone -d example.com -d www.example.com
- Auto config: sudo -H ./letsencrypt-auto -d example.com -d www.example.com

Check Certificate Domains
- sudo ls /etc/letsencrypt/live
- ./certbot-auto certificates

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ALTER USER 'root'@'localhost' IDENTIFIED with mysql_native_password;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;

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    # First:
     
    DELETE FROM wp_postmeta
    WHERE post_id IN
    (
    SELECT id
    FROM wp_posts
    WHERE post_type = 'attachment'
    )
    ;