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Secure FTP Backup and Restore Scripts

Overview

This project provides robust, secure scripts for automated server data backups using FTP with encryption and retention management.

Features

  • Secure Backup:

    • Encrypted database and file backups
    • Supports multiple directories
    • Secure FTP transfer

  • Automated Management:

    • Automatic backup scheduling
    • Retention of last 8 backups
    • Old backups automatically pruned

  • Easy Configuration:

    • Single .env file for all sensitive configurations
    • Strict file permission recommendations

Prerequisites

  • bash
  • lftp
  • gpg
  • mysql (for database backups)

Setup and Installation

1. Environment Configuration

Create a .env file with the following structure:

# FTP Credentials
FTP_HOST="your-ftp-host"
FTP_USER="your-ftp-username"
FTP_PASS="your-ftp-password"

# Backup Configuration
BACKUP_DIRS=("/path/to/directory1" "/path/to/directory2")
BACKUP_RETENTION_COUNT=8

# Database Configuration
DB_HOST="localhost"
DB_USER="root"
DB_PASS="your-root-password"
DB_NAME="your-database-name"

# Security
ENCRYPTION_PASSPHRASE="strong-unique-passphrase"

2. Secure Permissions

# Secure .env file
chmod 600 .env

# Make scripts executable
chmod 700 backup_to_ftp.sh restore_from_ftp.sh

Usage

Manual Backup

./backup_to_ftp.sh

Manual Restore

./restore_from_ftp.sh

Automated Backups with Cron

Edit crontab to schedule daily backups:

crontab -e

Add the following line (adjusts time as needed):

0 2 * * * /path/to/backup_to_ftp.sh

Security Recommendations

  • Use strong, unique passphrases
  • Regularly rotate encryption keys
  • Monitor backup logs
  • Test restore procedures periodically
  • Store .env file securely
  • Use firewall and network restrictions

Troubleshooting

  • Check system logs for detailed error information
  • Verify FTP and database credentials
  • Ensure all dependencies are installed
  • Confirm network connectivity

Contributing

Contributions welcome! Please submit pull requests or open issues for improvements.