If you have the problem, that the the_content filter is being called multiple times, you might use an SEO plugin like Yoast SEO, that uses the_content to generate META tags.

To identify the relevant the_content filter call, you can use [in_the_loop()](https://codex.wordpress.org/Function_Refer...

Manage MySQL from the Command Line

To open the MySQL prompt, run the following command:

mysql -u root -p

Create a Database

CREATE DATABASE database_name;

Result shoud look like:

Query OK, 1 row affected (0.00 sec)

If you want to create a database that already exis...

If you want to convert text to titlecase, you can use this function:

$string_in_titlecase = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");

$str is the string, that should get converted to titlecase, $string_in_titlecase is the converted string.

If you want to replace a string in a file from the command line (bash), you can use the command sed. As an example, we want to replace PermitRootLogin yes by PermitRootLogin no in /etc/ssh/sshd_config:

sed -i -e 's/PermitRootLogin yes/PermitRootLogin no/g' /etc/ssh/sshd_config

If you wa...

To move a domain to another user when using VestaCP, simply use this command:

sudo /usr/local/vesta/bin/v-change-domain-owner example.com new_username

You have to replace example.com by the desired domain name and new_username by the name of the new user.

*The code example above is extra...

If you use Ubuntu 18.04 and want to check the memory usage, you can use the command:

watch -n 5 free -m

This command shows you available, free and used memory. The values gets an refresh every 5 seconds.

To increase the SSH idle timeout, you can modify the SSH config file:

sudo nano /etc/ssh/sshd_config

Add / configure the following values:

ClientAliveInterval 120
ClientAliveCountMax 30

Definition of ClientAliveInterval (from the manpage):

*Sets a timeout interval in seconds aft...

This tutorial shows you, how to setup a base ubuntu 18.04 installation as LAMP server for WordPress. It may aksi be used for other PHP applications, but the tutorial was written with WordPress in mind.

Enable Sudo and Disable Root Login

Start with adding a user:

adduser my_user

Add us...

locate

If you are searching for a file in a bash shell, you first have to update the DB by running the command:

updatedb

After that, you can use the command locate to search for your file:

locate v-add-letsencrypt-domain

Output should be something like that:

root@s001:~#...

VestaCP provides a list of web templates templates. Each template has its own features. Below is a list of available templates and corresponding features:

• default
  no additional settings, works well for most sites
• basedir
  to fight against phpshells using openbasedir directive -...