If there is a tool that has helped in the management of MySQL / MariaDB data is PHPMyAdmin both professionals and students or even enthusiasts.

So, what is PHPMyAdmin?

According to the project website,

phpMyAdmin is a free software tool written in PHP, intended to handle the administration of MySQL over the Web. phpMyAdmin supports a wide range of operations on MySQL and MariaDB. Frequently used operations (managing databases, tables, columns, columns, relations, indexes, users, permissions, etc) can be performed via the user interface, while you still can directly execute any SQL statement.

Therefore, with PHPMyAdmin we can quickly query our data and other options quickly and easily. In addition to this, we are talking about an open-source project with which we can examine its source code and even modify it.

Another advantage of using PHPMyAdmin is that as it is a project created with PHP, the only thing we need is an operating system with a web server installed. From there, we can then access it with a web device such as a computer, tablet, or mobile phone.

So, let’s get started.

Install PHPMyAdmin on Debian 11

By default, it is included in the official Debian 11 repositories. So installing it is very easy to do. The problem is that the versions included in the repositories are not always the most up-to-date.

So in this post, we’ll go through the whole process to get the latest stable version published on the PHPMyAdmin website.

Install LAMP on Debian 11

Since this is a web application, then it is necessary to have our computer working as a web server. So, we need to install LAMP on Debian 11

For that, you have to install first Apache on Debian 11 and then MariaDB on Debian 11. With our posts, you will have no problem doing that.

Also, it is necessary to install some PHP modules such as

php libapache2-mod-php php-mysql php-mysql php-mbstring php-xml php-zip

Once we have LAMP fully installed, we can continue.

Downloading and installing the latest version of PHPMyAdmin

At the time of writing this post, the latest stable version of PHPMyAdmin is 5.1.1 in the future this will change. So to keep it working, in the commands replace 5.1.1 with the updated version number.

Now, from the /tmp/ folder download PHPMyAdmin with the command wget.

cd /tmp/
wget https://files.phpmyadmin.net/phpMyAdmin/5.1.1/phpMyAdmin-5.1.1-all-languages.tar.gz

Then unzip it and move it to another location. In this case, I will move it to /usr/share/phpmyadmin.

sudo mv phpMyAdmin-5.1.1-all-languages /usr/share/phpmyadmin

Now create a tmp folder dedicated to PHPMyAdmin. Then make Apache the owner of it.

sudo mkdir -p /var/lib/phpmyadmin/tmp
sudo chown -R www-data:www-data /var/lib/phpmyadmin

Also, create a folder dedicated to the configuration:

sudo mkdir /etc/phpmyadmin/

Enable the PHPMyAdmin configuration by copying the sample with the configuration name that the program will recognize.

sudo cp /usr/share/phpmyadmin/config.sample.inc.php /usr/share/phpmyadmin/config.inc.php

This file needs to be edited to make two modifications.

sudo nano /usr/share/phpmyadmin/config.inc.php

The first is to define a passphrase that will help us to increase security.

$cfg['blowfish_secret'] = '[passphrase]'; 

The second is to set the path to the temporary folder we created for PHPMyAdmin. You can add this line.

$cfg['TempDir'] = '/var/lib/phpmyadmin/tmp';

Save your changes and close the editor.

Now you need to add a recommended Apache configuration for ideal access to PHPMyAdmin.

So, Create the file

sudo nano /etc/apache2/conf-enabled/phpmyadmin.conf

And add the following:

Alias /phpmyadmin /usr/share/phpmyadmin
ServerName your-domain

<Directory /usr/share/phpmyadmin>
    Options SymLinksIfOwnerMatch
    DirectoryIndex index.php

    <IfModule mod_php5.c>
        <IfModule mod_mime.c>
            AddType application/x-httpd-php .php
        </IfModule>
        <FilesMatch ".+\.php$">
            SetHandler application/x-httpd-php
        </FilesMatch>

        php_value include_path .
        php_admin_value upload_tmp_dir /var/lib/phpmyadmin/tmp
        php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/:/usr/share/php/php-gettext/:/usr/share/php/php-php-gettext/:/usr/share/javascript/:/usr/share/php/tcpdf/:/usr/share/doc/phpmyadmin/:/usr/share/php/phpseclib/
        php_admin_value mbstring.func_overload 0
    </IfModule>
    <IfModule mod_php.c>
        <IfModule mod_mime.c>
            AddType application/x-httpd-php .php
        </IfModule>
        <FilesMatch ".+\.php$">
            SetHandler application/x-httpd-php
        </FilesMatch>

        php_value include_path .
        php_admin_value upload_tmp_dir /var/lib/phpmyadmin/tmp
        php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/:/usr/share/php/php-gettext/:/usr/share/php/php-php-gettext/:/usr/share/javascript/:/usr/share/php/tcpdf/:/usr/share/doc/phpmyadmin/:/usr/share/php/phpseclib/
        php_admin_value mbstring.func_overload 0
    </IfModule>

</Directory>

<Directory /usr/share/phpmyadmin/setup>
    <IfModule mod_authz_core.c>
        <IfModule mod_authn_file.c>
            AuthType Basic
            AuthName "phpMyAdmin Setup"
            AuthUserFile /etc/phpmyadmin/htpasswd.setup
        </IfModule>
        Require valid-user
    </IfModule>
</Directory>

Save the changes and close the editor.

Now enable the rewrite module and check the service status for an error.

sudo a2enmod rewrite
sudo systemctl restart apache2
sudo systemctl status apache2

Optionally, but recommended, you can secure access to PHPMyAdmin by installing Let’s Encrypt certificates.

So, install Certbot and the Apache plugin.

sudo apt install certbot python3-certbot-apache

And generate the certificates as follows

sudo certbot --apache -d [your-domain]

Then, follow the interactive instructions of the tool. There you will have to define your email address and the installation will be done.

Then, restart Apache.

sudo systemctl restart apache2

Now you can access using your favorite web browser at https://your-server/phpmyadmin/ and you will see the login screen.

So, enjoy it.

Conclusion

PHPMyAdmin is a sophisticated tool that allows us to manage a MariaDB instance without much trouble. It can be useful to save a lot of time in viewing the data and the many options we have to work with.

With this post, you learned how to install the latest stable version without major problems having LAMP as a base.

The post How to install PHPMyAdmin on Debian 11 appeared first on Linux Windows and android Tutorials.

LAMP stands for Linux, Apache web server, MariaDB, and PHP. Together they can make a computer a functional web server that can run many websites and complex web applications such as WordPress.

So it is a good idea to know how to install this software stack that will serve as a base to install many other applications.

So, let’s get started.

Install LAMP on Debian 11

To start our post, we need to start with a clean install of Debian 11 which is quite easy to install. It is also recommended that you have it updated with these commands.

apt update
apt upgrade

These commands are executed as the root user. But you can also enable sudo on Debian 11. So if you have it enabled just prefix the sudo command with the rest.

With the system upgrade, we can continue the post.

Install Apache and PHP on Debian 11

Apache is an open-source web server that is very popular around the world. On the other hand, PHP is a web programming language that, while not the only one, is one of the most popular and used by all kinds of developers.

The installation of both tools is easy thanks to the fact that they are included in the official Debian 11 repositories. This process is detailed in our post

How to install Apache on Debian 11?

There you can find all the necessary information on how to install both tools.

Install MariaDB on Debian 11

The next step is to install and properly configure MariaDB which will serve as our database manager. MariaDB has many important features but the support that many web applications give to it is one of the main ones.

For example, applications such as WordPress, GLPI, and others support MariaDB, so installing it is vital.

For that, I invite you to read our post

How to install MariaDB on Debian 11?

There you can not only install it but also get it ready for us to start using it.

LAMP on Debian 11 Conclusion

In this post, we have shown you how to install the LAMP stack on Debian 11. To do this, we have relied on our posts where we detail the installation process of each of the components. This does not make the post longer and makes it easier to understand.

The post Install LAMP on Debian 11 appeared first on Linux Windows and android Tutorials.

SQLite is a small, reliable, and very fast database engine. It is one of the most efficient database engines in the world. In part, thanks to that made in C Language which makes it very efficient in managing the resources of the system.

In like manner, the development of SQLite is so important that many major companies participate in it. This is done through the SQLite Consortium. In addition, all the code is available to be downloaded, viewed, and reused for being open source.

So, let us start.

Install SQLite on Debian 11

SQLite has outstanding Linux support. Proof of this is that it is present in most of the existing distributions. In this sense, Debian 11 also has this privilege.

So, open a terminal or from a terminal interface, update the whole system.

sudo apt update
sudo apt upgrade

Then, you can search inside the repositories for all the packages that are related to SQLite.

sudo apt search sqlite

The next step is to install SQLite by executing the following command

sudo apt install sqlite3

Once you have completed the installation, you can verify the version that has been installed.

sqlite3 --version
3.34.1 2021-01-20 14:10:07 10e20c0b43500cfb9bbc0eaa061c57514f715d87238f4d835880cd846b9ealt1

This way, the installation has been successful,

Using SQLite to test the installation

Now, let’s use a little SQLite to check that everything went well. First, let’s create a new database

sqlite3 example.db

Since example.db does not exist then it will be created. The second time you want to access it, it will not be created.

Now I will create a new table with some fields. The important thing is to test the operation.

sqlite> CREATE TABLE Student
               (
               Id VARCHAR(25) NOT NULL,
               Name VARCHAR(25) NOT NULL,
               Last_Name VARCHAR(25) NOT NULL,
               Age INTEGER(2) NOT NULL,
               CONSTRAINT pk_Student PRIMARY KEY (Id)
               );

Also, check that the table has been created, showing the database tables.

sqlite> .tables
Student

Now add some data to the table.

sqlite> INSERT INTO Student (Id, Name, Last_Name, Age) VALUES ('Xy01','Jon','Snow',18);

And finally, display them.

sqlite> SELECT * FROM Student;

Now, you can use SQLite to make projects. Type .exit to close SQLite shell. Enjoy it!

Conclusion

SQLite is a great database application and if we learn to use it, it would be a great help for our projects. Installing it is very easy and gives us a lot of work possibilities. In this post, you learned how to install it and give some steps to use it.

The post Install SQLite on Debian 11 appeared first on Linux Windows and android Tutorials.

For the PostgreSQL website and listening to many programmers, “PostgreSQL is The World’s Most Advanced Open Source Relational Database”.

This is due to its high reliability and the way it works with data. It is said that for really big projects, there is nothing like using PostgreSQL. Also, it includes tools like multi version and others that make it very powerful.

According to the official information that we can find on the web site

PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

So, let’s go for it.

Install PostgreSQL on Debian 11

Debian, which is a multipurpose operating system, has many different tools in its official repositories. So it is not surprising that PostgreSQL is also present.

In addition to the base PostgreSQL package there are also others that we can use at other times. If you want to do a search in the repositories run

sudo apt update
sudo apt search postgresql

And this way we will be able to see all these packages.

To install PostgreSQL on Debian 11, you have to run the following command

sudo apt install postgresql-13
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
  git-man liberror-perl
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  libllvm11 libpq5 libxslt1.1 libz3-4 postgresql-client-13 postgresql-client-common postgresql-common ssl-cert
Suggested packages:
  postgresql-doc-13 libjson-perl
Recommended packages:
  sysstat
The following NEW packages will be installed:
  libllvm11 libpq5 libxslt1.1 libz3-4 postgresql-13 postgresql-client-13 postgresql-client-common postgresql-common ssl-cert
0 upgraded, 9 newly installed, 0 to remove and 0 not upgraded.
Need to get 42.3 MB of archives.
After this operation, 165 MB of additional disk space will be used.
Do you want to continue? [Y/n]

This will install the PostgreSQL base package which will be enough to do a job with it.

In Debian when installing an application that is managed through a systemd service, it will start automatically.

So, you can check the status of this service like this

sudo systemctl status postgresql
● postgresql.service - PostgreSQL RDBMS
     Loaded: loaded (/lib/systemd/system/postgresql.service; enabled; vendor preset: enabled)
     Active: active (exited) since Wed 2021-08-18 22:27:21 CEST; 4min 40s ago
   Main PID: 11736 (code=exited, status=0/SUCCESS)
      Tasks: 0 (limit: 2277)
     Memory: 0B
        CPU: 0
     CGroup: /system.slice/postgresql.service

So PostgreSQL is working properly. If you want to stop, restart or start the service you can use these commands

sudo systemctl stop postgresql
sudo systemctl restart postgresql
sudo systemctl start postgresql

Now let’s connect to PostgreSQL

Test the PostgreSQL installation

Now it’s time to use some PostgreSQL. The console is called psql but it is only available to the postgres user that was created during the installation.

So, first switch to the postgres user.

sudo -i -u postgres

And now if you access the console

psql

Inside it, you can execute commands. For example, list the databases:

\l

So, PostgreSQL is installed correctly and is working.

Enjoy it

Conclusion

In this post, you have learned how to install PostgreSQL in a quick and easy way that can help newbies get started with this powerful database manager.

The post Install PostgreSQL on Debian 11 appeared first on Linux Windows and android Tutorials.

MariaDB is a well-known archi Database Relationships Management System that is a MySQL fork. This is due to the purchase of Sun Mycrosystem by Oracle. It is perfectly compatible with MySQL and is available in most Linux distributions.

In Ubuntu 20.04 and 18.04 LTS the version of MariaDB that is available in the official repositories is 10.3 and 10.1 respectively but recently has seen the release of version 10.5 with some interesting new features.

So, if you want to take advantage of having a recent version of this database manager, then welcome.

Install MariaDB 10.6 on Ubuntu 20.04 / 18.04

Open a terminal and install some necessary packages:

sudo apt-get install software-properties-common
Reading package lists… Done
Building dependency tree
Reading state information… Done
The following additional packages will be installed:
python3-software-properties
Recommended packages:
unattended-upgrades
The following packages will be upgraded:
python3-software-properties software-properties-common
2 upgraded, 0 newly installed, 0 to remove and 87 not upgraded.
Need to get 35.8 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]

Once they’re ready we need to add the special MariaDB repository. This adds a lot of ease and security to the process because we won’t be using third-party repositories.

First, add the GPG key:

sudo apt-key adv --fetch-keys 'https://mariadb.org/mariadb_release_signing_key.asc'
Executing: /tmp/apt-key-gpghome.T8R2f9j18N/gpg.1.sh --fetch-keys https://mariadb.org/mariadb_release_signing_key.asc
gpg: requesting key from 'https://mariadb.org/mariadb_release_signing_key.asc'
gpg: key F1656F24C74CD1D8: public key "MariaDB Signing Key signing-key@mariadb.org" imported
gpg: Total number processed: 1
gpg: imported: 1

Now add the repository as such for Ubuntu 20.04

sudo add-apt-repository 'deb [arch=amd64,arm64,ppc64el] http://nyc2.mirrors.digitalocean.com/mariadb/repo/10.6/ubuntu focal main'

Or Ubuntu 18.04:

sudo add-apt-repository 'deb [arch=amd64,arm64,ppc64el] http://nyc2.mirrors.digitalocean.com/mariadb/repo/10.6/ubuntu bionic main'

Note: you can choose another mirror closer to you on the MariaDB website.
Once the new repository is added to the system repository list, you can refresh APT.

sudo apt update

And finally, install MariaDB 10.6 with the following command:

sudo apt install mariadb-server
Then you can check the installed version:

mysql --version
mysql  Ver 15.1 Distrib 10.6.3-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

With the installation of MariaDB a root password is not defined, so to define it use the mysql_secure_installation script

sudo mysql_secure_installation

Define the root password and then answer yes to all the questions asked.

Remove anonymous users? [Y/n]
Disallow root login remotely? [Y/n] 
Remove test database and access to it? [Y/n] 
Reload privilege tables now? [Y/n]

Now we are ready. MariaDB 10.6 is installed correctly.

Conclusion

MariaDB 10.6 is a good improvement over previous versions. But it is not always available in the official repositories of other Linux distributions. Today you have learned how to install it in Ubuntu 20.04 / 18.04.

So, share this post and join our Telegram Channel.

The post How to install MariaDB 10.6 on Ubuntu 20.04 / Ubuntu 18.04? appeared first on Linux Windows and android Tutorials.

OmniDB is a client for managing MySQL, MariaDB, PostgreSQL, and SQLite databases. It has two versions, a desktop version which we told you about some time ago and a self-hosted version. We will talk about the latter.

This client allows us to install it on our server and access it from anywhere. Or even use it in an internal network for the same purposes. With OmniDB we will be able to do what it is expected to do, query, modify and manage databases; besides this, it includes SQL Editors with autocomplete and others.

On the other hand, work unification is the order of the day thanks to Tab System with multiple contexts.

So, let’s get started.

Install OmniDB Server on Ubuntu 20.04

The process is quite simple thanks to the DEB package that the developers leave us. So, connect to your server and update it.

sudo apt update
sudo apt upgrade

Now, download OmniDB DEB package

cd /tmp/
wget https://github.com/OmniDB/OmniDB/releases/download/3.0.3b/omnidb-server_3.0.3b_linux_x86_64.deb
--2021-08-04 15:08:35--  https://github.com/OmniDB/OmniDB/releases/download/3.0.3b/omnidb-server_3.0.3b_linux_x86_64.deb
Resolving github.com (github.com)... 140.82.121.4
Connecting to github.com (github.com)|140.82.121.4|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github-releases.githubusercontent.com/56064194/13663400-3ff3-11eb-8d0c-7de42ff344c5?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20210804%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20210804T130835Z&X-Amz-Expires=300&X-Amz-Signature=b329de2c87863f6cbe238e861488be0337ed0570899b2395511ceac88222ab8f&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=56064194&response-content-disposition=attachment%3B%20filename%3Domnidb-server_3.0.3b_linux_x86_64.deb&response-content-type=application%2Foctet-stream [following]
--2021-08-04 15:08:35--  https://github-releases.githubusercontent.com/56064194/13663400-3ff3-11eb-8d0c-7de42ff344c5?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20210804%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20210804T130835Z&X-Amz-Expires=300&X-Amz-Signature=b329de2c87863f6cbe238e861488be0337ed0570899b2395511ceac88222ab8f&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=56064194&response-content-disposition=attachment%3B%20filename%3Domnidb-server_3.0.3b_linux_x86_64.deb&response-content-type=application%2Foctet-stream
Resolving github-releases.githubusercontent.com (github-releases.githubusercontent.com)... 185.199.110.154, 185.199.111.154, 185.199.108.154, ...
Connecting to github-releases.githubusercontent.com (github-releases.githubusercontent.com)|185.199.110.154|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 51477258 (49M) [application/octet-stream]
Saving to: ‘omnidb-server_3.0.3b_linux_x86_64.deb’

omnidb-server_3.0.3b_linux_x86_64.deb     100%[=====================================================================================>]  49.09M  52.5MB/s    in 0.9s

2021-08-04 15:08:36 (52.5 MB/s) - ‘omnidb-server_3.0.3b_linux_x86_64.deb’ saved [51477258/51477258]

At the time of writing this post, the latest stable version is 3.0.3b so you should check the project website before doing anything.

Then, install it like any other package

sudo apt install ./omnidb-server_3.0.3b_linux_x86_64.deb
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'omnidb-server' instead of './omnidb-server_3.0.3b_linux_x86_64.deb'
The following NEW packages will be installed:
  omnidb-server
0 upgraded, 1 newly installed, 0 to remove and 24 not upgraded.
Need to get 0 B/51.5 MB of archives.
After this operation, 53.0 MB of additional disk space will be used.
Get:1 /tmp/omnidb-server_3.0.3b_linux_x86_64.deb omnidb-server amd64 3.0.3 [51.5 MB]
Selecting previously unselected package omnidb-server.
(Reading database ... 28542 files and directories currently installed.)
Preparing to unpack .../omnidb-server_3.0.3b_linux_x86_64.deb ...
Unpacking omnidb-server (3.0.3) ...
Setting up omnidb-server (3.0.3) ...
Created symlink /etc/systemd/system/multi-user.target.wants/omnidb.service → /etc/systemd/system/omnidb.service

When the process is finished, OmniDB will be ready to use.

Configuring OmniDB Server

The OmniDB installation includes a Systemd service to manage the program.

The first thing to do is to check the status of this service.

sudo systemctl status omnidb.service
● omnidb.service - OmniDB server daemon
     Loaded: loaded (/etc/systemd/system/omnidb.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-08-04 15:09:06 CEST; 1min 31s ago
    Process: 1466 ExecStart=/bin/bash -c /opt/omnidb-server/omnidb-server & (code=exited, status=0/SUCCESS)
   Main PID: 1467 (omnidb-server)
      Tasks: 14 (limit: 4566)
     Memory: 266.9M
     CGroup: /system.slice/omnidb.service
             ├─1467 /opt/omnidb-server/omnidb-server
             └─1498 /opt/omnidb-server/omnidb-server

Aug 04 15:09:10 osradar bash[1498]:   Applying social_django.0008_partial_timestamp... OK
Aug 04 15:09:10 osradar bash[1498]:   Applying social_django.0009_auto_20191118_0520... OK
Aug 04 15:09:10 osradar bash[1498]:   Applying social_django.0010_uid_db_index... OK
Aug 04 15:09:10 osradar bash[1498]: Attempting to migrate users, connections and monitoring units and snippets from OmniDB 2 to 3...
Aug 04 15:09:10 osradar bash[1498]: Source database file does not contain the required tables, skipping...
Aug 04 15:09:10 osradar bash[1498]: Starting OmniDB server...
Aug 04 15:09:10 osradar bash[1498]: Checking port availability...
Aug 04 15:09:10 osradar bash[1498]: Starting server OmniDB 3.0.3b at 127.0.0.1:8000.
Aug 04 15:09:10 osradar bash[1498]: Open OmniDB in your favorite browser
Aug 04 15:09:10 osradar bash[1498]: Press Ctrl+C to exit

As you can see, it is running on http://127.0.0.1:8000 but since we are installing it on a server, this is not useful.

So, stop the service.

sudo systemctl stop omnidb.service

Now, initialize but with the -p options to define a port and -H to define the host.

omnidb-server -p 8080 -H 0.0.0.0.0
Attempting to migrate users, connections and monitoring units and snippets from OmniDB 2 to 3...
Source database file does not contain the required tables, skipping...
Starting OmniDB server...
Checking port availability...
Starting server OmniDB 3.0.3b at 0.0.0.0:8080.
Open OmniDB in your favorite browser
Press Ctrl+C to exit

Now yes. When you open the web browser and visit http://ipserver:8080 you can see the login screen.

Press CTRL + C to finish running OmniDB because we need to create a new user.

This can be done as follows:

omnidb-server -u angelo 123456

Replace angelo with your username and 123456 with a more appropriate password.

Now run it again and you will be able to log in. You will see the login screen and then the welcome screen.

And you will be able to edit a connection.

Optional: Using Nginx as a reverse proxy

The default is that we have to use a reverse proxy like Nginx and from there manage the connection to OmniDB. This is very well detailed in the official documentation.

So, if OmniDB is running, stop it. Either using the service or manually.

Install Nginx

sudo apt install nginx

And create a new configuration file for Nginx

sudo nano /etc/nginx/sites-available/omnidb

Now add the following

server {
    listen 443 ssl;
    listen [::]:443 ssl;
    include snippets/ssl-domain.conf;
    include snippets/ssl-params.conf;
    server_name domain.org;
    client_max_body_size 75M;

    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Ssl https;
        proxy_set_header   X-Forwarded-Proto https;
        proxy_set_header   X-Forwarded-Port 443;
        proxy_set_header   Host $host;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

Remember to replace server_name with your domain.

Save the changes and close the editor.

Check the Nginx syntax for an error.

sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

For all this to work, it is necessary to edit the default OmniDB configuration file.

sudo nano ~/.omnidb/omnidb-server/config.py

And make sure to leave these values as follows

LISTENING_ADDRESS = '127.0.0.1'
LISTENING_PORT = 8000IS_SSL = False
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True

Save the changes and close the editor.

The next step is to create an SSL certificate with Let’s Encrypt. So, install certbot and the Nginx plugin.

sudo apt install certbot python3-certbot-nginx

And generate the certificate

sudo certbot --nginx -d [domain]

Put your domain and accept the license terms and you are done.

Finish the process by starting the OmniDB service and restarting Nginx.

sudo systemctl start omnidb
sudo systemctl restart nginx

Now login from your browser in a secure way.

Conclusion

Tools like OmniDB are very welcome because they allow us to have flexibility in accessing our databases. With this tool, you can set up a web interface that you can access from anywhere to manage a database anywhere. So, enjoy it.

The post Install OmniDB Server on Ubuntu 20.04 appeared first on Linux Windows and android Tutorials.

MariaDB is a well-known archi Database Relationships Management System that is a MySQL fork. This is due to the purchase of Sun Mycrosystem by Oracle. It is perfectly compatible with MySQL and is available in most Linux distributions.

In Rocky Linux 8 / AlmaLinux 8 / CentOS 8 the version of MariaDB that is available in the official repositories is 10.3 but recently has seen the release of version 10.6 with some interesting new features.

So, if you want to take advantage of having a recent version of this database manager, then welcome.

Install MariaDB 10.6 on Rocky Linux 8 / AlmaLinux 8 / CentOS 8

MariaDB’s support with Linux is quite good and proof of this is that it provides us with a dedicated repository for Rocky Linux 8 / AlmaLinux 8 / CentOS 8 to facilitate installation.

So, access your server or start a terminal session and update the system. In this post, I worked as the root user. Also, you can use sudo if your user has permission to do so.

dnf update

And make sure you have installed the nano text editor

dnf install nano

Then we have to create a new repository entry in the DNF configuration which is /etc/yum.repos.d/

So, create a file called mariadb.repo

nano /etc/yum.repos.d/mariadb.repo

And add the following information:

[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.6/rhel8-amd64
module_hotfixes=1
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1 

Then save the changes and close the editor.

Now install MariaDB 10.6

dnf install mariadb-server

During the installation, you will have to accept the GPG key from the repository and the installation will continue.

Then you have to start the MariaDB service:

systemctl start mariadb

and proceed to the configuration with the mariadb_secure_installation script

mariadb_secure_installation
Switch to unix_socket authentication [Y/n] y
Remove anonymous users? [Y/n]
Disallow root login remotely? [Y/n]
Remove test database and access to it? [Y/n]
Reload privilege tables now? [Y/n]

After the installation is complete, check the installed version:

mysql --version
mysql  Ver 15.1 Distrib 10.6.3-MariaDB, for Linux (x86_64) using readline 5.1

So, you can enjoy MariaDB.

Conclusion

MariaDB 10.6 is a good improvement over previous versions. But it is not always available in the official repositories of other Linux distributions. Today you have learned how to install it in Rocky Linux 8 / AlmaLinux 8 / CentOS 8.

The post How to install MariaDB 10.6 on Rocky Linux 8 / AlmaLinux 8 / CentOS 8? appeared first on Linux Windows and android Tutorials.

In terms of proprietary database managers perhaps Oracle Database, IBM DB2, and Microsoft SQL Server are the most used and common options by many companies. They have the great advantage of having large companies behind them that provide a high level of support to their operations.

Also, there are other quite competent open-source options such as MySQL, PostgreSQL, or Percona. However, many companies still trust their data to proprietary options and the fact that we can install them in Ubuntu speaks well of our system. So let’s go for it.

Install Microsoft SQL Server on Ubuntu 20.04 / Debian 10

As you can imagine, SQL Server is not available in the official Ubuntu repositories but it is available through the repository offered by Microsoft.

So, open a terminal or connect via SSH and update the system:

sudo apt update
sudo apt upgrade
sudo apt install software-properties-common 

Then import the GPG key from the Microsoft repository.

sudo wget -qO- https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -

After that, add the SQL Server repository as such.

sudo add-apt-repository "$(wget -qO- https://packages.microsoft.com/config/ubuntu/18.04/mssql-server-2019.list)"

Next, refresh APT.

sudo apt update

And now you can install Microsoft SQL Server by executing the following command:

sudo apt install mssql-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  gawk gdb libbabeltrace1 libc++1 libc++1-10 libc++abi1-10 libdw1 libmpfr6 libpython2-stdlib libpython2.7-minimal libpython2.7-stdlib libsasl2-modules
  libsasl2-modules-gssapi-mit libsigsegv2 libsss-nss-idmap0 python-is-python2 python2 python2-minimal python2.7 python2.7-minimal
Suggested packages:
  gawk-doc gdb-doc clang libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql python2-doc python-tk python2.7-doc binutils binfmt-support
Recommended packages:
  libc-dbg libcc1-0 gdbserver
The following NEW packages will be installed:
  gawk gdb libbabeltrace1 libc++1 libc++1-10 libc++abi1-10 libdw1 libmpfr6 libpython2-stdlib libpython2.7-minimal libpython2.7-stdlib libsasl2-modules
  libsasl2-modules-gssapi-mit libsigsegv2 libsss-nss-idmap0 mssql-server python-is-python2 python2 python2-minimal python2.7 python2.7-minimal
0 upgraded, 21 newly installed, 0 to remove and 29 not upgraded.
Need to get 235 MB of archives.
After this operation, 1,102 MB of additional disk space will be used.
Do you want to continue? [Y/n]

This way it will be installed.

Preparing Microsoft SQL Server for the first use

During the installation process, you will notice that at the end, you will get an output screen similar to this one:

Setting up python-is-python2 (2.7.17-4) ...
Setting up libc++1:amd64 (1:10.0-50~exp1) ...
Setting up mssql-server (15.0.4102.2-4) ...

+--------------------------------------------------------------+
Please run 'sudo /opt/mssql/bin/mssql-conf setup'
to complete the setup of Microsoft SQL Server
+--------------------------------------------------------------+

Processing triggers for man-db (2.9.1-1) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.2) ...

In it, we are told that it is necessary to configure the application before using it and it even tells us the command to start the configuration.

sudo /opt/mssql/bin/mssql-conf setup
usermod: no changes
Choose an edition of SQL Server:
  1) Evaluation (free, no production use rights, 180-day limit)
  2) Developer (free, no production use rights)
  3) Express (free)
  4) Web (PAID)
  5) Standard (PAID)
  6) Enterprise (PAID) - CPU Core utilization restricted to 20 physical/40 hyperthreaded
  7) Enterprise Core (PAID) - CPU Core utilization up to Operating System Maximum
  8) I bought a license through a retail sales channel and have a product key to enter.

Details about editions can be found at
https://go.microsoft.com/fwlink/?LinkId=2109348&clcid=0x409

Use of PAID editions of this software requires separate licensing through a
Microsoft Volume Licensing program.
By choosing a PAID edition, you are verifying that you have the appropriate
number of licenses in place to install and run this software.

Enter your edition(1-8):

The main configuration we have to do is to enter the license. In this case, I have used the Developer which is free and we can use it for the post.

Also, you have to accept the license terms and create the administrator key which has to be complex.

With this SQL Server will be installed but we are missing one more detail.

For now, you can check the status of the service to see if everything is in order:

sudo systemctl status mssql-server
● mssql-server.service - Microsoft SQL Server Database Engine
     Loaded: loaded (/lib/systemd/system/mssql-server.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2021-03-25 20:39:29 CET; 3min 59s ago
       Docs: https://docs.microsoft.com/en-us/sql/linux
   Main PID: 3175 (sqlservr)
      Tasks: 136
     Memory: 587.6M
     CGroup: /system.slice/mssql-server.service
             ├─3175 /opt/mssql/bin/sqlservr
             └─3218 /opt/mssql/bin/sqlservr

Install SQL Server tools and UnixODBC

Although the Server is ready, we have to install other components like the Tools and fundamentally the UnixODBC connector without this we will not be able to make a connection with the server.

So, add the GPG key and the repository:

curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
OK
wget https://packages.microsoft.com/config/ubuntu/19.10/prod.list
sudo mv prod.list /etc/apt/sources.list.d/mssql-release.list

After this, refresh APT to apply the change:

sudo apt update

And finally, install both the UnixODBC connector and the Mssql-tools

sudo ACCEPT_EULA=Y apt install mssql-tools unixodbc-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  autoconf automake autotools-dev libgdbm-compat4 libltdl-dev libodbc1 libperl5.30 m4 msodbcsql17 odbcinst odbcinst1debian2 perl perl-modules-5.30 unixodbc
Suggested packages:
  autoconf-archive gnu-standards autoconf-doc libtool gettext libtool-doc unixodbc-bin m4-doc perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl make
  libb-debug-perl liblocale-codes-perl
Recommended packages:
  libtool
The following NEW packages will be installed:
  autoconf automake autotools-dev libgdbm-compat4 libltdl-dev libodbc1 libperl5.30 m4 msodbcsql17 mssql-tools odbcinst odbcinst1debian2 perl perl-modules-5.30 unixodbc
  unixodbc-dev
0 upgraded, 16 newly installed, 0 to remove and 29 not upgraded.
Need to get 9,845 kB of archives.
After this operation, 53.9 MB of additional disk space will be used.
Do you want to continue? [Y/n]

After the installation, add the directory to the bash_profile so that the command is available from the whole system.

echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile

In the end, you can connect to the shell by running:

sqlcmd -S 127.0.0.1 -U SA

Note: if you cannot execute the command, log out and try again.

Now you will be able to use Microsoft SQL Server on Ubuntu 20.04 / Debian 10

Conclusion

Microsoft SQL Server is pretty good at what it does and that is why many companies have it as their database manager. Having it available on Ubuntu 20.04 / Debian 10 is not a difficult task and brings us even closer to the integration between Microsoft and Linux products.

The post How to install Microsoft SQL Server on Ubuntu 20.04 / Debian 10? appeared first on Linux Windows and android Tutorials.

Install PostgreSQL 13 on CentOS 8 / RHEL 8 / Oracle Linux 8

Both RHEL 8 and its derivatives include PostgreSQL 10 in their repositories. However, we already have available version 13. And it is recommended to install it because thanks to it, we can enjoy interesting news and improvements in the performance of the application. Important, if we are going to store large quantities of records.

So first, open a terminal session. Or if you are using a server connect to it using ssh.

:~$ ssh [your-user]@[your-host]

Then log in as the root user.

:~$ su
:~#

The best way to install PostgreSQL 13 on CentOS 8, RHEL 8 and Oracle Linux 8 is to add the official PostgreSQL refill. Not only is it easy, but also safe and the possibility to be always up to date.

To do this, run the following command:

:~# dnf install https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

Then, disable the PostgreSQL module on CentOS 8.

:~# dnf module disable postgresql

Now, install PostgreSQL 13 on CentOS 8.

:~# dnf install postgresql13-server postgresql13

After that, let us configure it.

Configure PostgreSQL on CentOS / RHEL 8 / Oracle Linux 8

Initialize PostgreSQL database and start the service

After installing it, the first thing to do is to initialize the database. To achieve this, it is necessary to execute the following command:

:~# /usr/pgsql-13/bin/postgresql-13-setup initdb
Initializing database ... OK

With this, we will have already started the initial database. At this point, the PostgreSQL service is not enable, so you can’t use it yet. Then you have to do it.

:~# systemctl enable postgresql-13

Then, if you want PostgreSQL to start along with the system run this command:

:~# systemctl start postgresql-13

To check that everything is going well, check the status of the service:

:~# systemctl status postgresql-13

As you can see, everything’s fine.

Change the password to the “postgres” user and allow the remote connections

During the installation of PostgreSQL, a new user called postgres is created. The problem is that you do not define a password, so it makes you vulnerable. To avoid problems, it is convenient to create a password.

To do this, just use the Unix passwd command.

:~# passwd postgres

There you will have to enter the password twice. If both are effective, the final change will be made.

Now, we have to allow access to remote connections. The client must be installed on each of the systems that will access PostgreSQL. It will depend on each operating system.

Then, a good security measure is to specify the hosts that can access it. Of course, if the data will be served on the Internet, then it is necessary to allow all the accesses.

:~# nano /var/lib/pgsql/13/data/postgresql.conf

then searches for the listen_addresses line and places the hosts that can access it. If you allow any access, type ‘*’.

listen_addresses = '[host/IP_adress]'
or
listen_addresses = '*'

Then, restart PostgreSQL.

:~# systemctl restart postgresql-13

Finally, you have to open the port 5432 on the firewall to allow the connections.

:~# firewall-cmd --add-port=5432/tcp --permanent
success
:~# firewall-cmd --reload
success

Now, you can access to the PostgreSQL shell.

:~# su - postgres
:~# psql

Now, you can start to work.

Conclusion

PostgreSQL is one of the best there is for databases. Thanks to its community spirit, it is possible to find a lot of documentation about it. On the other hand, installing version 13 on CentOS 8, RHEL 8 and Oracle Linux 8 is quite simple as you have seen in this post.

Also, you can read how to install Postgresql on Ubuntu 18.04?

Please share this post with your friends and join our Telegram channel.

The post How to install PostgreSQL 13 on CentOS 8 / RHEL 8 / Oracle Linux 8? appeared first on Linux Windows and android Tutorials.

PostgreSQL 13 is the latest stable version of what is perhaps the most advanced open-source relational database manager. So many sysadmin need to have it on the different servers.

If you want to know all the news or at least the most important ones, you can read this post

PostgreSQL 13 is available

Well, PostgreSQL 13 comes with many important improvements and it’s a good time to install it. That’s what this post is about.

So let’s go for it.

Install PostgreSQL 13 on Debian

PostgreSQL is included in the official Debian repositories, but not in version 13 but in version 11.

The installation of PostgreSQL 13 is possible thanks to the repository it has for APT package managers that is used by Debian, Ubuntu, Linux Mint and derivatives.

So let’s start.

First, open a terminal session or connect to your server using SSH. Then, install some necessary packages:

:~$ sudo apt install gnupg gnupg2

At the end, the PostgreSQL 13 repository should be added to the list of Debian software sources. To do this, create the following file:

:~$ sudo nano /etc/apt/sources.list.d/pgdg.list

And in it he adds the following:

deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main

Then save the changes by pressing CTRL + O and close the file by pressing CTRL + X.

For the repository to be accepted by the system, you need to add the gpg key to it. To do this, use the following command:

:~$ wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
OK

Once the process has been completed, simply update the APT cache.

:~$ sudo apt update

You can now view all the packages related to PostgreSQL 13 by typing

:~$ sudo apt install postgresql-13

But don’t press enter, just press the TAB key and you’ll see the following:

As you can see in the image, we have PostgreSQL 13 available. So to install it run the following command:

:~$ sudo apt install postgresql-13
Reading package lists... Done
Building dependency tree 
Reading state information... Done
The following additional packages will be installed:
libgdbm-compat4 libjson-perl libllvm7 libperl5.28 libpq5 libxslt1.1 perl pgdg-keyring postgresql-client-13 postgresql-client-common postgresql-common ssl-cert
Suggested packages:
perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl make libb-debug-perl liblocale-codes-perl postgresql-doc-13 openssl-blacklist
Recommended packages:
libjson-xs-perl sysstat
The following NEW packages will be installed:
libgdbm-compat4 libjson-perl libllvm7 libperl5.28 libpq5 libxslt1.1 perl pgdg-keyring postgresql-13 postgresql-client-13 postgresql-client-common postgresql-common
ssl-cert
0 upgraded, 13 newly installed, 0 to remove and 10 not upgraded.
Need to get 34.5 MB of archives.
After this operation, 145 MB of additional disk space will be used.
Do you want to continue? [Y/n]

Now we’ll see if everything went well.

Testing the installation

By default, Debian when installing PostgreSQL starts and enables the service. Therefore, it is ready to be tested. However, if you want to stop the service, you can use this command:

:~$ sudo systemctl stop postgresql

On the other hand, the best way to know if PostgreSQL is ready for work is to execute some command from the console. So we’ll access it first:

:~$ sudo -i -u postgres

Remember that the PostgreSQL console is accessed through the postgres user.

And finally, we access with this command:

:~# psql

Once inside, we can, for example, display all the databases in the system:

:~# \l

And so we can work without problems with PostgreSQL.

Conclusion

PostgreSQL 13 is a powerful database manager that is used in many projects worldwide. This makes many people want to have the latest stable versions to take even more advantage of the tool.

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The post How to install PostgreSQL 13 on Debian 10? appeared first on Linux Windows and android Tutorials.