new init

1 files changed, 135 insertions, 0 deletions

diff --git a/service_management.sh b/service_management.sh
new file mode 100644
index 0000000..dcfa26c
--- /dev/null
+++ b/service_management.sh
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+#!/bin/bash
+#
+# Service Management Utility
+# 
+# WARNING: This script is provided for educational purposes ONLY.
+# Unauthorized use to interrupt services is illegal and unethical.
+#
+# PURPOSE: Demonstrates techniques for monitoring and controlling services
+# with proper authentication and logging for legitimate administration.
+
+# Configuration
+LOG_FILE="/var/log/maintenance.log"
+AUTH_USERS_FILE="authorized_users.txt"
+
+# Check if running as root
+if [ "$EUID" -ne 0 ]; then
+  echo "This script requires root privileges"
+  exit 1
+fi
+
+# Functions
+log_action() {
+  echo "$(date '+%Y-%m-%d %H:%M:%S') - $USER - $1" | tee -a "$LOG_FILE"
+}
+
+is_authorized() {
+  if [ ! -f "$AUTH_USERS_FILE" ]; then
+    echo "Error: Authorization file not found"
+    return 1
+  fi
+  
+  grep -q "^$USER$" "$AUTH_USERS_FILE"
+  return $?
+}
+
+show_usage() {
+  echo "Usage: $0 [options] <action> <service>"
+  echo "Options:"
+  echo "  -h, --help     Show this help message"
+  echo "  -l, --list     List running services"
+  echo "  -f, --firewall Manage firewall rules"
+  echo ""
+  echo "Actions:"
+  echo "  start          Start a service"
+  echo "  stop           Stop a service"
+  echo "  restart        Restart a service"
+  echo "  status         Show service status"
+  echo ""
+  echo "Examples:"
+  echo "  $0 stop nginx"
+  echo "  $0 --firewall block 80"
+}
+
+list_services() {
+  log_action "Listed running services"
+  systemctl list-units --type=service --state=running
+}
+
+manage_service() {
+  local action=$1
+  local service=$2
+  
+  if ! systemctl list-unit-files --type=service | grep -q "$service"; then
+    echo "Error: Service $service not found"
+    return 1
+  fi
+  
+  log_action "Executing: systemctl $action $service"
+  systemctl "$action" "$service"
+  
+  echo "Service $service $action operation completed"
+  log_action "Completed $action on $service"
+}
+
+manage_firewall() {
+  local action=$1
+  local port=$2
+  
+  if [ "$action" == "block" ]; then
+    log_action "Blocking port $port"
+    ufw deny "$port"
+  elif [ "$action" == "allow" ]; then
+    log_action "Allowing port $port"
+    ufw allow "$port"
+  else
+    echo "Error: Unknown firewall action"
+    return 1
+  fi
+  
+  echo "Firewall rule applied for port $port"
+}
+
+# Main script
+if ! is_authorized; then
+  echo "Error: User $USER not authorized to run this script"
+  log_action "UNAUTHORIZED ACCESS ATTEMPT"
+  exit 1
+fi
+
+if [ $# -lt 1 ]; then
+  show_usage
+  exit 1
+fi
+
+case "$1" in
+  -h|--help)
+    show_usage
+    ;;
+  -l|--list)
+    list_services
+    ;;
+  -f|--firewall)
+    if [ $# -lt 3 ]; then
+      echo "Error: Missing arguments for firewall management"
+      show_usage
+      exit 1
+    fi
+    manage_firewall "$2" "$3"
+    ;;
+  start|stop|restart|status)
+    if [ $# -lt 2 ]; then
+      echo "Error: Missing service name"
+      show_usage
+      exit 1
+    fi
+    manage_service "$1" "$2"
+    ;;
+  *)
+    echo "Error: Unknown action $1"
+    show_usage
+    exit 1
+    ;;
+esac
+
+exit 0 
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