Remove the Apache Web Server Ubuntu

sudo service apache2 stop

sudo systemctl disable apache2

sudo apt remove apache2

sudo apt autoremove

How to install Postal MTA using Docker & Caddy server in Ubuntu 18.04

Step-1: Hostname Setup

sudo hostname postal.example.com

Step-2: Docker

sudo apt-get update

sudo apt-get install \

    apt-transport-https \

    ca-certificates \

    curl \

    gnupg \

    lsb-release

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

echo \

  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \

  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

docker-compose --version

Step-3: System utilties

apt install git curl jq

Step-4: Git & installation helper repository

git clone https://postalserver.io/start/install /opt/postal/install

sudo ln -s /opt/postal/install/bin/postal /usr/bin/postal

Step-5: MariaDB

docker run -d \

   --name postal-mariadb \

   -p 127.0.0.1:3306:3306 \

   --restart always \

   -e MARIADB_DATABASE=postal \

   -e MARIADB_ROOT_PASSWORD=postal \

   mariadb

Step-6: RabbitMQ

docker run -d \

   --name postal-rabbitmq \

   -p 127.0.0.1:5672:5672 \

   --restart always \

   -e RABBITMQ_DEFAULT_USER=postal \

   -e RABBITMQ_DEFAULT_PASS=postal \

   -e RABBITMQ_DEFAULT_VHOST=postal \

   rabbitmq:3.8

Step-7: Installation postal

postal bootstrap mailer.justnutritive2.com

Step-8: DB Config and Permission (This is optional if you use step-5)

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

GRANT ALL ON postal.* TO 'postal'@'localhost' WITH GRANT OPTION;

FLUSH PRIVILEGES;

Exit;

sudo nano /opt/postal/config/postal.yml

Step-9: DB initialise

postal initialize

postal make-user

Step-10: Postal Running

postal start

Step-11: Installing WEB Client

docker run -d \

   --name postal-caddy \

   --restart always \

   --network host \

   -v /opt/postal/config/Caddyfile:/etc/caddy/Caddyfile \

   -v /opt/postal/caddy-data:/data \

   caddy

Step-12: STPM Configure

https://postal.justnutritive2.com

-----------------------------------------

Postal Login Credentials

-----------------------------------------

Mr X.

https://postal.example.com/settings

Username: alexise@example.com

Password: **********

====================================================

docker run -d \

   --name postal-caddy \

   --restart always \

   --network host \

   -v /opt/postal/config/Caddyfile:/etc/caddy/Caddyfile \

   -v /home/postal/public_html/caddy-data:/data \

   caddy

sudo /etc/init.d/apache2 start

sudo /etc/init.d/apache2 stop

----------------------------

Postal stop

Postal start

Install only Webmin without Lamp Stack

$ sudo nano /etc/apt/sources.list

$ deb http://download.webmin.com/download/repository sarge contrib

$ wget http://www.webmin.com/jcameron-key.asc 

$ sudo apt-key add jcameron-key.asc

$ sudo apt update 

$ sudo apt install webmin

Change Ubuntu server Hoatname permanently

 Type the hostnamectl command :

sudo hostnamectl set-hostname newNameHere

Delete the old name and setup new name.

Next Edit the /etc/hosts file:

sudo nano /etc/hosts

Replace any occurrence of the existing computer name with your new one.

Reboot the system to changes take effect:

sudo reboot

How to install VestaCP

# Connect to your server as root via SSH

ssh root@your.server

# Download installation script

curl -O http://vestacp.com/pub/vst-install.sh

# Run it

bash vst-install.sh

Google Sheet Sigle column No Duplicate Data Validation

 Here the example is given for column A:

=COUNTIF($A$2:$A711,$A13)<2

How to Install SQLite driver for your PHP version in Ubuntu

Log in to your web server via SSH and run the following command:

sudo apt-get install php-sqlite3

If the above command does not work, you can try the PHP version-specific instructions below:

For PHP5, use

sudo apt-get install php5-sqlite

For PHP7.0, use

sudo apt-get install php7.0-sqlite

For PHP7.1, use

sudo apt-get install php7.1-sqlite

For PHP7.2, use

sudo apt-get install php7.2-sqlite

For PHP7.3, use

sudo apt-get install php7.3-sqlite

For PHP7.4, use

Then

Restart Apache

sudo service apache2 restart

Restart Nginx

sudo service nginx restart