Poll-monitor/SSH remote access to WSL (Windows Subsystem for Linux) Windows 2022 server and enable wsl.exe automatically during Windows 2022 server restart/reboot from remote Ubuntu 22.04 LTS

Shell Script

#!/bin/bash

# Log file location
LOG_FILE="/var/log/ping_monitor.log"
SERVICE_NAME="ping_monitor.service"

# Function to log messages with timestamps
log_message() {
    echo "$(date +"%Y-%m-%d %H:%M:%S") - $1" >> $LOG_FILE
}

# IP address to ping
IP_ADDRESS="A.B.C.D"
# Number of timeouts and replies to check
TIMEOUT_COUNT=2  # Adjust this as needed
REPLY_COUNT=4

# Initialize counters
timeout_counter=0
reply_counter=0

# Infinite loop to monitor the ping status
while true; do
    # Ping the IP address once
    ping -c 1 $IP_ADDRESS > /dev/null 2>&1

    # Check the exit status of the ping command
    if [ $? -ne 0 ]; then
        # Increment the timeout counter if the ping fails
        ((timeout_counter++))
        log_message "Ping to $IP_ADDRESS timed out. Count: $timeout_counter"
    else
        # Increment the reply counter if the ping succeeds
        ((reply_counter++))
        log_message "Received reply from $IP_ADDRESS. Count: $reply_counter"
    fi

    # Check if the timeout condition is met
    if [ $timeout_counter -ge $TIMEOUT_COUNT ]; then
        log_message "Timeout condition met. Waiting for replies..."

        # Reset the timeout counter and wait for replies
        timeout_counter=0

        # Wait for the replies condition
        while [ $reply_counter -lt $REPLY_COUNT ]; do
            ping -c 1 $IP_ADDRESS > /dev/null 2>&1

            if [ $? -eq 0 ]; then
                ((reply_counter++))
                log_message "Received reply from $IP_ADDRESS. Count: $reply_counter"
            else
                log_message "Ping to $IP_ADDRESS timed out."
            fi

            sleep 1  # Wait a second before the next ping
        done

        # Both conditions met; execute the command directly
        log_message "Executing command on remote machine."
        sshpass -p 'Administrator_Password' ssh -tt Administrator@$IP_ADDRESS "\"C:\\Program Files\\WSL\\wsl.exe\""

        log_message "Command executed. Clearing log file."

        # Clear the log file to save space
        > $LOG_FILE  # This will truncate the log file

        log_message "Log file cleared. Restarting the service."

        # Restart the systemd service
        systemctl restart $SERVICE_NAME

        log_message "Service $SERVICE_NAME restarted. Continuing to monitor..."

        # Continue the monitoring loop
        timeout_counter=0  # Reset timeout counter to continue monitoring
        reply_counter=0    # Reset reply counter for the next cycle
    fi

    sleep 1  # Wait a second before the next ping
done
    

Systemd Service file

[Unit]
Description=Ping Monitor service
After=multi-user.target
[Service]
Type=simple
User=root
Restart=always
ExecStart=/usr/bin/bash /root/ping_monitor.sh
WorkingDirectory=/root/
CPUQuota=50%
MemoryLimit=8G
[Install]
WantedBy=multi-user.target