documenting crontab configuration in readme.md

README.md

@@ -0,0 +1,36 @@
+###### crontab setup:
+
+sudo crontab -e
+
+select your desired text editor
+
+then add this below line at the end of the crontab file
+
+0 0 * * SUN /usr/bin/sudo /home/arul/back-up-script/backup-server
+
+
+###### Explaination:
+
+* * * * *
+│ │ │ │ │
+│ │ │ │ └── Day of the week (0 - 6) (Sunday = 0)
+│ │ │ └──── Month (1 - 12)
+│ │ └────── Day of the month (1 - 31)
+│ └─────── Hour (0 - 23)
+└───────── Minute (0 - 59)
+
+
+
+0 0 * * SUN:
+
+    0 minute: The job runs at the 0th minute (on the hour).
+
+    0 hour: The job runs at midnight (00:00).
+
+    * day of the month: This means it can run on any day of the month (not restricted).
+
+    * month: This means it can run in any month.
+
+    SUN: The job runs only on Sundays (which are represented by 0 or SUN in cron).
+
+

backup-server

@@ -1,104 +1,114 @@
 #!/bin/bash
 
+# Log file
+LOG_FILE="./backup.log"
+
+# Function to log messages
+log_message() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" | tee -a "$LOG_FILE"
+}
+
 # Check if the script is run with sudo
 if [ "$EUID" -ne 0 ]; then
-    echo "Please run this script with sudo."
+    log_message "Please run this script with sudo."
     exit 1
 fi
 
-# Check whether server VMs are in shutdown state if not..shutdown the VMs
+# Run enable-usb script to prepare USB
+log_message "Running enable-usb script..."
+./enable-usb
 
+# Check whether server VMs are in shutdown state, if not, shutdown the VMs
+log_message "Checking server states..."
 ./check-server1
 ./check-server2
+./check-server3
 
 # Define source directories using the explicit path to your home directory
 VM_DIR_MY_PLATFORMS="/home/arul/my_platforms/"
 VM_DIR_LDR_SERVER="/home/arul/ldr-server/"
+VM_DIR_FF_SERVER="/home/arul/FF-server/"
 NGINX_DIR="/etc/nginx/sites-available/"
 BACKUP_DRIVE="/mnt/my-drive/server-backup"
 DEVICE="/dev/sdb1"  # Device name for the backup drive
 
 # Check if the backup drive is mounted; if not, attempt to mount it
+log_message "Checking if backup drive is mounted..."
 if ! mountpoint -q /mnt/my-drive; then
-    echo "Backup drive is not mounted. Attempting to mount $DEVICE..."
+    log_message "Backup drive is not mounted. Attempting to mount $DEVICE..."
     mount $DEVICE /mnt/my-drive
     if [ $? -ne 0 ]; then
-        echo "Error: Failed to mount the drive. Please check the device path and try again."
+        log_message "Error: Failed to mount the drive. Please check the device path and try again."
         exit 1
     fi
-    echo "Backup drive mounted successfully."
+    log_message "Backup drive mounted successfully."
+else
+    log_message "Backup drive is already mounted."
 fi
 
 # Ensure the main backup directory exists, and create necessary subdirectories if they don't exist
-echo "Setting up backup directory structure..."
-mkdir -p "$BACKUP_DRIVE/my_platforms" "$BACKUP_DRIVE/ldr-server" "$BACKUP_DRIVE/home-server_nginx"
+log_message "Setting up backup directory structure..."
+mkdir -p "$BACKUP_DRIVE/my_platforms" "$BACKUP_DRIVE/ldr-server" "$BACKUP_DRIVE/FF-server" "$BACKUP_DRIVE/home-server_nginx"
 if [ $? -ne 0 ]; then
-    echo "Error: Failed to create backup directories. Please check permissions and try again."
+    log_message "Error: Failed to create backup directories. Please check permissions and try again."
     exit 1
 fi
 
 # Set permissions for the newly created backup directories
 chmod 700 "$BACKUP_DRIVE"
-chmod 755 "$BACKUP_DRIVE/my_platforms" "$BACKUP_DRIVE/ldr-server" "$BACKUP_DRIVE/home-server_nginx"
-echo "Backup directory structure set up with appropriate permissions."
+chmod 755 "$BACKUP_DRIVE/my_platforms" "$BACKUP_DRIVE/ldr-server" "$BACKUP_DRIVE/FF-server" "$BACKUP_DRVE/home-server_nginx"
+log_message "Backup directory structure set up with appropriate permissions."
 
 # Delete previous backups from the backup drive if they exist
-echo "Deleting previous backups..."
-rm -rf "$BACKUP_DRIVE/my_platforms/*" "$BACKUP_DRIVE/ldr-server/*" "$BACKUP_DRIVE/home-server_nginx/*"
-echo "Previous backups deleted."
+log_message "Deleting previous backups..."
+rm -rf "$BACKUP_DRIVE/my_platforms/*" "$BACKUP_DRIVE/ldr-server/*" "$BACKUP_DRIVE/FF-server/*" "$BACKUP_DRIVE/home-server_nginx/*"
+log_message "Previous backups deleted."
 
 # Copy VM files from my_platforms if the source directory exists
 if [ -d "$VM_DIR_MY_PLATFORMS" ]; then
-    echo "Copying VM files from my_platforms..."
+    log_message "Copying VM files from my_platforms..."
     cp -r "$VM_DIR_MY_PLATFORMS"/* "$BACKUP_DRIVE/my_platforms/"
-    echo "Copy of my_platforms completed."
+    log_message "Copy of my_platforms completed."
 else
-    echo "Warning: $VM_DIR_MY_PLATFORMS does not exist. Skipping copy for my_platforms."
+    log_message "Warning: $VM_DIR_MY_PLATFORMS does not exist. Skipping copy for my_platforms."
 fi
 
 # Copy VM files from ldr-server if the source directory exists
 if [ -d "$VM_DIR_LDR_SERVER" ]; then
-    echo "Copying VM files from ldr-server..."
+    log_message "Copying VM files from ldr-server..."
     cp -r "$VM_DIR_LDR_SERVER"/* "$BACKUP_DRIVE/ldr-server/"
-    echo "Copy of ldr-server completed."
+    log_message "Copy of ldr-server completed."
 else
-    echo "Warning: $VM_DIR_LDR_SERVER does not exist. Skipping copy for ldr-server."
+    log_message "Warning: $VM_DIR_LDR_SERVER does not exist. Skipping copy for ldr-server."
+fi
+
+# Copy VM files from FF-server if the source directory exists
+if [ -d "$VM_DIR_FF_SERVER" ]; then
+    log_message "Copying VM files from FF-server..."
+    cp -r "$VM_DIR_FF_SERVER"/* "$BACKUP_DRIVE/FF-server/"
+    log_message "Copy of FF-server completed."
+else
+    log_message "Warning: $VM_DIR_FF_SERVER does not exist. Skipping copy for FF-server."
 fi
 
 # Copy Nginx configuration files
-echo "Copying Nginx configuration files..."
+log_message "Copying Nginx configuration files..."
 cp -r "$NGINX_DIR"/* "$BACKUP_DRIVE/home-server_nginx/"
-echo "Copy of Nginx configuration completed."
+log_message "Copy of Nginx configuration completed."
 
-# Set permissions for Nginx configuration files
-#echo "Setting permissions for Nginx configuration files..."
-#chmod 644 "$BACKUP_DRIVE/home-server_nginx/"*
-#echo "Permissions set for Nginx files."
-
-# Set permissions for VM files if the directories exist
-#if [ -d "$BACKUP_DRIVE/my_platforms" ]; then
-#    echo "Setting permissions for VM files in my_platforms..."
-#    chmod 600 "$BACKUP_DRIVE/my_platforms/"*
-#fi
-
-#if [ -d "$BACKUP_DRIVE/ldr-server" ]; then
-#    echo "Setting permissions for VM files in ldr-server..."
-#    chmod 600 "$BACKUP_DRIVE/ldr-server/"*
-#fi
-
-# Remove executable permissions from copied files
-#echo "Removing executable permissions from copied files..."
-#chmod -x "$BACKUP_DRIVE/my_platforms/"* "$BACKUP_DRIVE/ldr-server/"* "$BACKUP_DRIVE/home-server_nginx/"*
-#echo "Executable permissions removed."
-
-echo "Latest version of Server VM Backup completed successfully!"
+# Final message
+log_message "Latest version of Server VM Backup completed successfully!"
 figlet "Done"
 
-echo "Unmounting the External backup drive"
-umount -l /mnt/my-drive
+# Unmount the external backup drive using the unmount-ssd script
+log_message "Unmounting the external backup drive..."
+./unmount-ssd
 
-# Reboot the system after the copy operation
-echo "Rebooting the system..."
-reboot
+# Run disable-usb script to disable USB
+log_message "Running disable-usb script..."
+./disable-usb
 
+#systemd service to initiate all servers with time intervals for smooth initiation
+log_message "Restarting all server VMs..."
+sudo systemctl restart start_vms.service
 

backup.log

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+2025-04-03 15:53:31 - Running enable-usb script...
+2025-04-03 15:53:37 - Checking server states...
+2025-04-03 15:54:10 - Checking if backup drive is mounted...
+2025-04-03 15:54:10 - Backup drive is not mounted. Attempting to mount /dev/sdb1...
+2025-04-03 15:54:11 - Backup drive mounted successfully.
+2025-04-03 15:54:11 - Setting up backup directory structure...
+2025-04-03 15:54:11 - Backup directory structure set up with appropriate permissions.
+2025-04-03 15:54:11 - Deleting previous backups...
+2025-04-03 15:54:11 - Previous backups deleted.
+2025-04-03 15:54:11 - Copying VM files from my_platforms...
+2025-04-03 16:42:15 - Copy of my_platforms completed.
+2025-04-03 16:42:15 - Copying VM files from ldr-server...
+2025-04-03 17:06:47 - Copy of ldr-server completed.
+2025-04-03 17:06:47 - Copying VM files from FF-server...
+2025-04-03 17:09:11 - Copy of FF-server completed.
+2025-04-03 17:09:11 - Copying Nginx configuration files...
+2025-04-03 17:09:11 - Copy of Nginx configuration completed.
+2025-04-03 17:09:11 - Latest version of Server VM Backup completed successfully!
+2025-04-03 17:09:11 - Unmounting the external backup drive...
+2025-04-03 17:09:25 - Running disable-usb script...
+2025-04-03 17:48:42 - Running enable-usb script...
+2025-04-04 01:45:50 - Running enable-usb script...
+2025-04-04 01:45:56 - Checking server states...
+2025-04-04 01:46:56 - Checking if backup drive is mounted...
+2025-04-04 01:46:56 - Backup drive is not mounted. Attempting to mount /dev/sdb1...
+2025-04-04 01:46:56 - Backup drive mounted successfully.
+2025-04-04 01:46:56 - Setting up backup directory structure...
+2025-04-04 01:46:56 - Backup directory structure set up with appropriate permissions.
+2025-04-04 01:46:56 - Deleting previous backups...
+2025-04-04 01:46:56 - Previous backups deleted.
+2025-04-04 01:46:56 - Copying VM files from my_platforms...
+2025-04-04 02:35:13 - Copy of my_platforms completed.
+2025-04-04 02:35:13 - Copying VM files from ldr-server...
+2025-04-04 02:59:44 - Copy of ldr-server completed.
+2025-04-04 02:59:44 - Copying VM files from FF-server...
+2025-04-04 03:02:11 - Copy of FF-server completed.
+2025-04-04 03:02:11 - Copying Nginx configuration files...
+2025-04-04 03:02:11 - Copy of Nginx configuration completed.
+2025-04-04 03:02:11 - Latest version of Server VM Backup completed successfully!
+2025-04-04 03:02:11 - Unmounting the external backup drive...
+2025-04-04 03:02:21 - Running disable-usb script...

check-server3

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+#!/bin/bash
+
+# Define server IP, port, and SSH key path for FF-server
+SERVER_IP="192.168.29.251"
+SERVER_PORT="2224"
+SERVER_NAME="FF-server VM"
+SSH_KEY_PATH="/home/arul/.ssh/id_ed25519"  # Add your SSH key path here
+
+echo "[-] Shutting down $SERVER_NAME"
+ssh -i "$SSH_KEY_PATH" -o StrictHostKeyChecking=no -p "$SERVER_PORT" root@"$SERVER_IP" "poweroff"
+
+# Wait for 10 seconds to give the server time to power off
+echo "[*] Waiting for the server to shut down..."
+sleep 10
+
+# Check if the server is off by attempting to SSH and expecting failure
+echo "[*] Verifying server shutdown..."
+SERVER_OFF=false
+MAX_RETRIES=5
+for i in $(seq 1 "$MAX_RETRIES"); do
+    # Try to SSH into the server
+    ssh -i "$SSH_KEY_PATH" -o StrictHostKeyChecking=no -p "$SERVER_PORT" -o ConnectTimeout=5 root@"$SERVER_IP" "exit" 2>/dev/null
+    
+    # Check if the SSH command failed, indicating the server is off
+    if [ $? -ne 0 ]; then
+        echo "[+] $SERVER_NAME is powered off."
+        SERVER_OFF=true
+        break
+    else
+        echo "[*] Server is still shutting down. Checking again in 5 seconds..."
+        sleep 5
+    fi
+done
+
+# Final check to ensure no warning message if the server is off
+if [ "$SERVER_OFF" = false ]; then
+    echo "[!] Warning: $SERVER_NAME did not shut down as expected."
+else
+    echo "[+] Proceeding with the rest of the script."
+fi
+

debug-usb

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+#!/bin/bash
+
+echo "🔄 Debugging USB issue..."
+
+# Check who is using the usb_storage module
+echo "⚡ Checking what is holding usb_storage..."
+sudo lsmod | grep usb_storage
+sudo lsof | grep usb-storage
+sudo fuser -v /dev/sd*
+
+echo "🔄 Checking USB devices..."
+lsusb
+
+echo "🔄 Checking kernel logs for USB errors..."
+dmesg | tail -30
+
+

disable-usb

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+USB_DEV="3-2"
+MOUNT_POINT="/mnt/my-drive"
+
+# Check if SSD is mounted before unmounting
+if mountpoint -q "$MOUNT_POINT"; then
+    sync
+    umount "$MOUNT_POINT"
+    echo "✅ Unmounted $MOUNT_POINT"
+else
+    echo "⚠ No drive mounted at $MOUNT_POINT"
+fi
+
+# Check if USB device exists before trying to disable it
+if [[ -e /sys/bus/usb/devices/$USB_DEV ]]; then
+    echo 1 | sudo tee /sys/bus/usb/devices/$USB_DEV/remove
+    echo "✅ USB device $USB_DEV disabled"
+else
+    echo "⚠ USB device $USB_DEV is already removed"
+fi
+

enable-usb

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+echo "🔄 Resetting USB system..."
+
+# Step 1: Unmount the drive if it's mounted
+MOUNT_POINT="/mnt/my-drive"
+if mountpoint -q "$MOUNT_POINT"; then
+    echo "⚡ Unmounting $MOUNT_POINT..."
+    sudo umount "$MOUNT_POINT"
+else
+    echo "⚠ No drive mounted at $MOUNT_POINT"
+fi
+
+# Step 2: Unload USB storage module
+echo "⚡ Unloading usb_storage module..."
+sudo rmmod usb_storage 2>/dev/null || sudo modprobe -r usb_storage
+sleep 2
+
+# Step 3: Reset the USB controller
+echo "🔄 Unbinding USB controller..."
+echo -n "0000:00:14.0" | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind
+sleep 2
+
+echo "🔄 Binding USB controller..."
+echo -n "0000:00:14.0" | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind
+sleep 2
+
+# Step 4: Reload USB storage module
+echo "⚡ Reloading usb_storage module..."
+sudo modprobe usb_storage
+
+echo "✅ USB reset complete! Run 'lsusb' to verify."
+

peek-backup

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+MOUNT_POINT="/mnt/my-drive"
+DEVICE="/dev/sdb1"  # Updated to the correct partition
+
+echo "🔄 Checking if $DEVICE is already mounted..."
+if mountpoint -q "$MOUNT_POINT"; then
+    echo "⚠ Already mounted at $MOUNT_POINT. Unmounting..."
+    sudo umount "$MOUNT_POINT" || { echo "❌ Failed to unmount. Exiting."; exit 1; }
+fi
+
+echo "⚡ Mounting $DEVICE to $MOUNT_POINT..."
+sudo mkdir -p "$MOUNT_POINT"
+sudo mount "$DEVICE" "$MOUNT_POINT" && echo "✅ Mounted successfully!" || { echo "❌ Failed to mount."; exit 1; }
+
+echo "📂 Scanning disk usage with ncdu..."
+ncdu "$MOUNT_POINT"
+
+echo "🗂 Opening Ranger..."
+ranger "$MOUNT_POINT"
+

unmount-ssd

@@ -0,0 +1,18 @@
+
+#!/bin/bash
+
+MOUNT_POINT="/mnt/my-drive"
+
+echo "🔄 Checking if $MOUNT_POINT is mounted..."
+if mountpoint -q "$MOUNT_POINT"; then
+    echo "⚡ Unmounting $MOUNT_POINT..."
+    sudo umount "$MOUNT_POINT" && echo "✅ Unmounted successfully!" || { echo "❌ Failed to unmount."; exit 1; }
+else
+    echo "⚠ No drive mounted at $MOUNT_POINT"
+    exit 0
+fi
+
+# Display cool ASCII art
+echo "🚀 Drive Unmounted!"
+figlet "USB Ejected!"
+