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+INSTALAR NEXTCLOUD UBUNTU-SERVER CON ZIP OFICIAL (latest.zip)
+
+Instala Apache, PHP y MySQL:
+sudo apt update
+sudo apt install apache2 mysql-server php libapache2-mod-php php-mysql php-gd php-json php-xml php-curl php-zip php-mbstring php-bcmath unzip -y
+
+
+Configura la base de datos:
+sudo mysql
+CREATE DATABASE nextcloud;
+CREATE USER 'nextclouduser'@'localhost' IDENTIFIED BY 'password123';
+GRANT ALL PRIVILEGES ON nextcloud.* TO 'nextclouduser'@'localhost';
+FLUSH PRIVILEGES;
+EXIT;
+
+Descarga Nextcloud:
+wget https://download.nextcloud.com/server/releases/latest.zip
+unzip latest.zip
+sudo mv nextcloud /var/www/html/
+sudo chown -R www-data:www-data /var/www/html/nextcloud
+
+Crea archivo de configuración en Apache:
+sudo nano /etc/apache2/sites-available/nextcloud.conf
+
+<VirtualHost *:80>
+    ServerAdmin admin@localhost
+    DocumentRoot /var/www/html/nextcloud
+    ServerName localhost.local
+
+    <Directory /var/www/html/nextcloud/>
+        Require all granted
+        AllowOverride All
+        Options +FollowSymlinks
+    </Directory>
+
+    ErrorLog ${APACHE_LOG_DIR}/nextcloud_error.log
+    CustomLog ${APACHE_LOG_DIR}/nextcloud_access.log combined
+</VirtualHost>
+
+
+Activa el sitio y módulos necesarios:
+sudo a2ensite nextcloud.conf
+sudo a2enmod rewrite headers env dir mime
+sudo systemctl reload apache2
+
+Abre el navegador y escribe http://IP_DEL_SERVIDOR/nextcloud
+
+BACKUP nextcloud
+sudo -E -u www-data php occ maintenance:mode --on
+rsync -Aavx nextcloud/ nextcloud-dirbkp_`date +"%Y%m%d"`/
+mysqldump --single-transaction --no-tablespaces -h [server] -u [username] -p[password] [db_name] > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
+mysqldump --single-transaction --default-character-set=utf8mb4 -h [server] -u [username] -p[password] [db_name] > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
+sudo -E -u www-data php occ maintenance:mode --off
+
+
+RESTORE nextcloud
+rsync -Aax nextcloud-dirbkp/ nextcloud/
+mysql -h [server] -u [username] -p[password] -e "DROP DATABASE nextcloud"
+mysql -h [server] -u [username] -p[password] -e "CREATE DATABASE nextcloud"
+utf8
+mysql -h [server] -u [username] -p[password] -e "DROP DATABASE nextcloud"
+mysql -h [server] -u [username] -p[password] -e "CREATE DATABASE nextcloud CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci"
+mysql -h [server] -u [username] -p[password] [db_name] < nextcloud-sqlbkp.bak
+
+Copiar archivos del servidor ubuntu a nextcloud
+sudo cp -R /ruta/de/tus/archivos/* /var/www/html/nextcloud/data/<tu_usuario>/files/Destino/
+
+sudo -u www-data php /var/www/html/nextcloud/occ files:scan --path="<tu_usuario>/files/Destino"
+
+Nota para o siguiente: Ha funcionado sin crear directorio destino ni dar permisos.
+No copies archivos cuando el usuario esté accediendo a Nextcloud; podrías corromper datos.
+Asegúrate de que el directorio de destino (Destino) exista previamente, o créalo con:
+mkdir /var/www/nextcloud/data/<tu_usuario>/files/Destino
+chown -R www-data:www-data /var/www/nextcloud/data/<tu_usuario>/files/Destino
+
+Eliminar bloqueos base de datos de Nextcloud
+Nextcloud a veces deja bloqueos en la base de datos que impiden operaciones de archivos. 
+sudo mysql -u root -p
+
+Selecciona base datos Nextcloud
+USE nextcloud;
+DELETE FROM oc_file_locks WHERE 1;
+EXIT;
+
+---------------------------------------
+
+INSTALACION SNAP
+sudo snap install nextcloud
+
+1. BACKUP-RESTORE USANDO SNAP SAVE-RESTORE
+https://github.com/nextcloud-snap/nextcloud-snap/wiki/Backup-and-Restore
+
+Backup.
+stop Nextcloud snap sudo snap stop nextcloud
+save Nextcloud snap sudo snap save nextcloud
+start Nextcloud snap sudo snap start nextcloud
+copy/move snapshot (*.zip) in /var/lib/snapd/snapshots to wherever
+
+Restore 
+copy/move snapshot (*.zip) to /var/lib/snapd/snapshots
+discover snapshot-id using snap saved
+restore snapshot sudo snap restore <snapshot-id>
+
+Deleting snap snapshots
+Procedure
+discover snapshot-id using snap saved
+delete snapshot sudo snap forget <snapshot-id>
+
+
+2. BACKUP-RESTORE USANDO NEXTCLOUD.EXPORT / NEXTCLOUD.IMPORT
+https://github.com/nextcloud-snap/nextcloud-snap/wiki/How-to-backup-your-instance
+
+Exportar/backup
+
+nextcloud.export
+Se guarda una carpeta con fecha y hora (ej:20190121-153921,) dentro de /var/snap/nextcloud/common/backups/.
+
+Se puede crear un tar o tar.gz (comprimido)
+sudo tar -czf 20190121-153921_nextcloud-backup.tar.gz /var/snap/nextcloud/common/backups/20190121-153921
+
+Importar/restore
+Extraer el archivo tar o tar.gz
+sudo tar -xvf 20190121-153921_nextcloud-backup.tar.gz
+
+Colocar la carpeta extraida (nombre fecha y hora) en:
+/var/snap/nextcloud/common o /var/snap/nextcloud/current/
+
+sudo nextcloud.import path/to/backup/dir.**
+
+
+sudo mv 20190121-153921_nextcloud-backup.tar /var/snap/nextcloud/current/
+sudo chown -R root:root /var/snap/nextcloud/current/20190121-153921/
+
+
+Opciones:
+-h: Display this help message
+-a: Include the (non-default) apps
+-b: Include the database
+-c: Include the config
+-d: Include the data (can be quite large)
+
+Q. Can exporting specify the data directory?
+A. Not directly, but you should be able to use a symlink. For example, creating a symlink from the data directory to /var/snap/nextcloud/common/nextcloud/data
+
+
+Q. Can I somehow export/import my HTTPS certs?
+A. Yes, everything related to them is stored in the /var/snap/nextcloud/current/certs directory, so copying it and preserving its permissions and owner works.
+
+
+Borrar bloqueos de nextcloud instalado con docker
+docker exec -it nextcloud_app php occ maintenance:mode --on
+docker exec -it nextcloud_db mysql -u nextcloud -pnextcloudpass nextcloud -e "DELETE FROM oc_file_locks;"
+docker exec -it nextcloud_app php occ maintenance:mode --off
+docker compose restart
+