Our mission is to make the experience of submitting assignments great for tens of hundreds of students in the department of computer science at the Zhejiang Normal University (Jinhua City, Zhejiang Province).
I spent about two hours on installing LRR to a bare, remote Ubuntu server (Ubuntu 20.04 LTS).
LRR needs Apache and MySQL to run. I followed [How To Install Linux, Apache, MySQL, PHP (LAMP) stack on Ubuntu 20.04] (https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-20-04) to set up these server applications.
LRR uses a database called `lrr`. I need to export existing `lrr` to a plain text file (including many sql commands) and import that text file to the newly created `lrr` database on the new server.
The command for exporting the database is `mysqldump -u mnc -p lrr > lrr_database_dump.txt`.
The command for importing is `mysql -u mnc -p lrr < lrr_database_dump.txt`. Read [How to Import and Export MySQL Databases in Linux] (https://phoenixnap.com/kb/import-and-export-mysql-database) for more detail.
LRR also needs to store assignment submissions. We store them in a folder called `../../lrr_submission`. Note that `lrr_submission` is two levels above the project folder (where many PHP files locate). I copied this folder from the existing one. I think it is also OK if you create an empty folder.
We need to set a proper owner and accessibility for `lrr_submission` using the following two commands:
`sudo chown -R www-data:www-data lrr_submission` and `sudo chmod -R g+rw lrr_submission`. Also, remember to change the user name and password in `lrr_submission//KeepItSafe.txt` for the database connection.
The above steps are preparation work. Now we could clone the LRR's repository to `/var/www/html/`.
Rename LRR to lrr. Change the owner of lrr: `sudo chown -R $USER:$USER /var/www/lrr`. Edit apache configure file: `sudo nano /etc/apache2/sites-available/lrr.conf`.
<VirtualHost*:80>
ServerName lrr
ServerAlias www.lrr.com
ServerAdmin webmaster@localhost
DocumentRoot /var/www/html/lrr
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
Enable the site lrr: `sudo a2ensite lrr`. Restart the apache server: `sudo systemctl reload apache2`.
Visit the LRR application by entering this URL: http://121.4.94.30/.
## Enock's steps
Enock has made a tutorial about how he deployed LRR to a remote server (http://lanlab.org/course/2021s/spm/PuTTY-Server.txt).
-*How assignements should be stored?* Creating sub-directories on all student submissions course-code/semester/section-number. (/student-number/course-code/semester/section-number/assignement-title/submission.txt)
