How to Install Lychee 3.1 Photo Album on a Fedora 26 LAMP VPS

Lychee 3.1 Photo Album is a simple and flexible, free and open source photo-management tool which runs on a VPS server. It installs in a matter of seconds, enabling you to upload, manage, and share photos quickly and securely. Lychee 3.1 features Dropbox import, (with a valid drop-ins app key). It can be expanded with new features via plug-ins which can, for instance, allow you to sync with any directory containing photos, upload photos via SSH, create RSS feeds out of your photos, add watermarks to your photos, plus many other advanced and useful features.

In this tutorial, we are going to install Lychee 3.1 Photo Album on a Fedora 26 LAMP VPS using Apache web server, PHP 7.1, and a MariaDB database.

Prerequisites

• A clean Hostazor Fedora 26 server instance with SSH access

Step 1: Add a Sudo User

We will start by adding a new sudo user.

First, log into your server as root:

ssh root@YOUR_Hostazor_IP_ADDRESS 

Add a new user called user1 (or your preferred username):

useradd user1 

Next, set the password for the user1 user:

passwd user1 

When prompted, enter a secure and memorable password.

Now check the /etc/sudoers file to make sure that the sudoers group is enabled:

visudo 

Look for a section like this:

%wheel ALL=(ALL) ALL 

Make sure it is uncommented. This line tells us that users who are members of the wheel group can use the sudo command to gain root privileges.

Once you have edited the file, you can save and exit by pressing Esc and then entering :wq to "write" and "quit" the file.

Next we need to add user1 to the wheel group:

usermod -aG wheel user1 

We can verify the user1 group membership and check that the usermod command worked with the groups command:

groups user1 

Now use the su command to switch to the new sudo user user1 account:

su - user1 

The command prompt will update to indicate that you are now logged into the user1 account. You can verify this with the whoami command:

whoami 

Now restart the sshd service so that you can login via ssh with the new non-root sudo user account you have just created:

sudo systemctl restart sshd 

Exit the user1 account:

exit 

Exit the root account (which will disconnect your ssh session):

exit 

You can now ssh into the server instance from your local host using the new non-root sudo user user1 account:

ssh user1@YOUR_Hostazor_IP_ADDRESS 

If you want to execute sudo without having to type a password every time, then open the /etc/sudoers file again, using visudo:

sudo visudo 

Edit the section for the wheel group so that it looks like this:

%wheel ALL=(ALL) NOPASSWD: ALL 

Please note: Disabling the password requirement for the sudo user is not a recommended practice, but it is included here as it can make server configuration much more convenient and less frustrating, especially during longer systems administration sessions. If you are concerned about the security implications, you can always revert the configuration change to the original after you finish your administration tasks.

Whenever you want to log into the root user account from within the sudo user account, you can use one of the following commands:

sudo -i sudo su - 

You can exit the root account and return back to your sudo user account any time by simply typing the following:

exit 

Step 2: Update Fedora 26 System

Before installing any packages on the Fedora server instance, we will first update the system.

Make sure you are logged into the server using a non-root sudo user and run the following command:

sudo dnf -y update 

Step 3: Install Apache Web Server

Install the Apache web server:

sudo dnf -y install httpd 

Then use the systemctl command to start and enable Apache to execute automatically at boot time:

sudo systemctl enable httpd sudo systemctl start httpd 

Check your Apache configuration file to ensure that the DocumentRoot directive points to the correct directory:

sudo vi /etc/httpd/conf/httpd.conf 

The DocumentRoot configuration option will look like this:

DocumentRoot "/var/www/html" 

Now, let's make sure that the mod_rewrite Apache module is loaded. We can do this by searching the Apache base modules configuration file for the term "mod_rewrite".

Open the file:

sudo vi /etc/httpd/conf.modules.d/00-base.conf 

Search for the term mod_rewrite.

If the mod_rewrite Apache module is loaded, you will find a configuration line looking like this:

LoadModule rewrite_module modules/mod_rewrite.so 

If the above line starts with a semi-colon, you will need to remove the semi-colon to uncomment the line and load the module. This, of course, applies to any other required Apache modules too.

We now need to edit Apache's default configuration file so that mod_rewrite will work correctly with Lychee.

Open the file:

sudo vi /etc/httpd/conf/httpd.conf 

Then find the section that starts with  and change AllowOverride none to AllowOverride All. The end result (with all comments removed) will look something like this:

 Options Indexes FollowSymLinks AllowOverride All Require all granted  

Now save and close the Apache configuration file.

We will restart Apache at the end of this tutorial, but restarting Apache regularly during installation and configuration is certainly a good habit, so let's do it now:

sudo systemctl restart httpd 

Step 4: Open Web Firewall Ports

We now need to open the default HTTP and HTTPS ports as they will be blocked by firewalld by default.

Open the firewall ports:

sudo firewall-cmd --permanent --add-port=80/tcp sudo firewall-cmd --permanent --add-port=443/tcp 

Reload the firewall to apply the changes:

sudo firewall-cmd --reload 

You will see the word success displayed in your terminal after each successful firewall configuration command.

We can quickly verify that the Apache HTTP port is open by visiting the IP address or domain of the server instance in a browser:

http://YOUR_Hostazor_IP_ADDRESS/ 

You will see the default Apache web page in your browser.

Step 5: Disable SELinux

SELinux stands for "Security Enhanced Linux". It is a security enhancement to Linux which allows users and administrators more control over access control. It is enabled by default in Fedora 26, but it is definitely not essential for server security as many Linux server distributions do not ship with it installed or enabled by default.

To avoid file permission problems with Lychee later down the line, we are going to disable SELinux, for now. So open the SELinux configuration file with your favourite terminal editor:

sudo vi /etc/selinux/config 

Change SELINUX=enforcing to SELINUX=disabled and then save the file.

To apply the configuration change, SELinux requires a server reboot, so you can either restart the server using the Hostazor control panel or you can simply use the shutdown command:

sudo shutdown -r now 

When the server reboots, your SSH session will get disconnected and you may see a message informing you about a 'broken pipe' or 'Connection closed by remote host'. This is nothing to worry about, simply wait for 20 seconds or so and then SSH back in again (with your own username and domain):

ssh user1@YOUR_DOMAIN 

Or (with your own username and IP address):

ssh user1@YOUR_Hostazor_IP_ADDRESS 

Once you have logged back in, you should check the status of SELinux again with the sestatus command to make sure it is properly disabled:

sudo sestatus 

You should see a message saying SELinux status: disabled. If you see a message saying SELinux status: enabled (or something similar) you will need to repeat the above steps and ensure that you properly restart your server.

Step 6: Install and Configure PHP 7.1

We can now install PHP 7.1 along with all of the necessary PHP modules required by Lychee:

sudo dnf -y install php php-mysqlnd php-mbstring php-gd php-common php-pdo php-pecl-imagick php-xml php-zip 

Since we may need to use Lychee to upload and process large files, we will need to change some of the default PHP settings.

Open the php.ini configuration file:

sudo vi /etc/php.ini 

Change the following PHP options to these values:

max_execution_time = 300 post_max_size = 100M upload_max_size = 100M upload_max_filesize = 50M memory_limit = 256M 

When you have finished, save and exit the file.

If you ever run into problems with not being able to upload or process large files with Lychee then simply try increasing the above values further, as that can solve your problems.

Step 7: Install MariaDB (MySQL) Server

Fedora 26 defaults to using MariaDB database server, which is an enhanced, fully open source, community developed, drop-in replacement for MySQL server.

Install MariaDB database server:

sudo dnf -y install mariadb-server 

Start and enable MariaDB server to execute automatically at boot time:

sudo systemctl enable mariadb sudo systemctl start mariadb 

Secure your MariaDB server installation:

sudo mysql_secure_installation 

The root password will be blank, so simply hit enter when prompted for the root password.

When prompted to create a MariaDB/MySQL root user, select "Y" (for yes) and then enter a secure root password. Simply answer "Y" to all of the other yes/no questions as the default suggestions are the most secure options.

Step 8: Create Database for Lychee

Log into the MariaDB shell as the MariaDB root user by running the following command:

sudo mysql -u root -p 

To access the MariaDB command prompt, simply enter the MariaDB root password when prompted.

Run the following queries to create a MariaDB database and database user for Lychee:

CREATE DATABASE lychee_db CHARACTER SET utf8 COLLATE utf8_general_ci; CREATE USER 'lychee_user'@'localhost' IDENTIFIED BY 'UltraSecurePassword'; GRANT ALL PRIVILEGES ON lychee_db.* TO 'lychee_user'@'localhost'; FLUSH PRIVILEGES; EXIT; 

You can replace the database name lychee_db and username lychee_user with something more to your liking, if you prefer. Also, make sure that you replace "UltraSecurePassword" with an actually secure password.

Step 9: Install Lychee Files

Change your current working directory to the default web directory:

cd /var/www/html/ 

If you get an error message saying something like 'No such file or directory' then try the following command:

cd /var/www/ ; sudo mkdir html ; cd html 

Your current working directory will now be: /var/www/html/. You can check this with the pwd (print working directory) command:

pwd 

Now use wget to download the Lychee installation package:

sudo wget --content-disposition https://github.com/electerious/Lychee/archive/v3.1.6.zip 

Please note: You should definitely check for the most recent version by visiting the Lychee download page.

List the current directory to check that you have successfully downloaded the file:

ls -la 

Let's quickly install unzip so we can unzip the file:

sudo dnf -y install unzip 

Now uncompress the zip archive:

sudo unzip Lychee-3.1.6.zip 

Move all of the installation files to the web root directory:

sudo mv -v Lychee-3.1.6/* Lychee-3.1.6/.* /var/www/html 2>/dev/null 

Change ownership of the web files to avoid any permissions problems:

sudo chown -R apache:apache * ./ 

Set world readable permissions on the upload and data directories:

sudo chmod -R 777 data/ upload/ 

Restart Apache again:

sudo systemctl restart httpd 

Now we're ready to move onto the final step.

Step 10: Complete Lychee Installation

It's now time to visit the IP address of your server instance in your browser, or if you've already configured your Hostazor DNS settings (and given it enough time to propagate) you can simply visit your domain instead.

To access the Lychee installation page, enter your Hostazor instance IP address into your browser address bar:

http://YOUR_Hostazor_IP_ADDRESS/ 

1. On the Database Connection Details page, enter the following database values:

   Database Host: localhost Database Username: lychee_user Password: UltraSecurePassword Database Name: lychee_db 

   Click Connect to continue.

2. Enter a Username and Password for your installation:

   Username:  Password:  

   Click Create Login to continue.

sudo vi data/config.php 

In any case, you are now ready to start uploading and sharing your photos. Make sure you check out the Lychee docs for more information about how to configure and use your photo manager.