Backup & Maintenance

Regular backups and maintenance keep your ChatNet installation running smoothly and protect against data loss. This section explains what files and data to backup (database, media, configuration), how to perform manual and automated backups, setting up cron jobs for scheduled tasks, database optimization techniques, and general maintenance tips like clearing old files and rotating logs. Establish a backup routine before you need it.

What to Backup

Critical files and data that must be included in your backup routine.

Database Backup

Export your MySQL database to preserve all user data, messages, and settings.

Via Command Line (Recommended)

mysqldump -u username -p database_name > backup_$(date +%Y%m%d).sql

Via phpMyAdmin

1. Log in to phpMyAdmin
2. Select your database
3. Click "Export"
4. Choose "Quick" export
5. Click "Go" to download

Media Folder Backup

Preserve user-uploaded files including images, attachments, and audio clips.

# Compress and backup media folder tar -czvf media_backup_$(date +%Y%m%d).tar.gz /path/to/chatnet/media/

Or use FTP to download the /media/ folder.

Automated Backups

Set up a cron job for automatic backups:

# Daily database backup at 2 AM 0 2 * * * mysqldump -u user -ppassword dbname > /backups/db_$(date +\%Y\%m\%d).sql # Weekly media backup 0 3 * * 0 tar -czvf /backups/media_$(date +\%Y\%m\%d).tar.gz /path/to/media/

Cron Jobs Setup

ChatNet may require cron jobs for background tasks:

# Run ChatNet cron every minute * * * * * php /path/to/chatnet/cron.php >> /var/log/chatnet-cron.log 2>&1

Maintenance Tips

Regular maintenance tasks to keep your ChatNet installation running smoothly.

Database Optimization

Run periodically to optimize tables:

OPTIMIZE TABLE cn_group_chats, cn_private_chats, cn_notifications;

Or via phpMyAdmin: Select tables > Optimize.

Clearing Old Files

Remove old temporary files:

# Delete temp files older than 7 days find /path/to/chatnet/media/temp -type f -mtime +7 -delete

Log Rotation

Prevent logs from growing too large:

# Clear old logs find /path/to/logs -name "*.log" -mtime +30 -delete