setup.sh

@@ -1,22 +1,10 @@
 #!/bin/bash
-#
-# Script to perform system maintenance on a RHEL-based Linux system.
-# 
-# This script:
-#  - Updates package manager and installed packages
-#  - Sets the system timezone based on geolocation or user input
-#  - Changes the system hostname and updates /etc/hosts
-#  - Creates a limited user account and modifies SSH settings
-#  - Optionally installs Docker CE
-#
-# Prerequisites:
-#  - The script must be run as root or with sudo privileges
-#
-# Usage:
-#  - Run the script directly on the system or via SSH.
-#  - Respond to prompts as required during the script execution.
+
+# Script to update a RHEL-based Linux system, set the timezone, change the hostname,
+# add a limited user account, modify sshd_config settings, and optionally install Docker CE
 
 # Variables
+timezone="America/New_York"
 sshd_config="/etc/ssh/sshd_config"
 docker_installed=false
 
@@ -65,8 +53,6 @@ install_docker() {
     usermod -aG docker "$username"
     echo "User $username added to the docker group."
 
-    # Clean up get-docker.sh
-    rm -f get-docker.sh
 }
 
 # Function to create a limited user account
@@ -74,13 +60,6 @@ create_user_account() {
     read -p "Please enter the username for the new user account: " username
     read -sp "Please enter the password for the new user account: " password
     echo
-    read -sp "Please confirm the password: " password_confirm
-    echo
-
-    if [ "$password" != "$password_confirm" ]; then
-        echo "Passwords do not match. Exiting."
-        exit 1
-    fi
 
     # Create the user and add to the wheel group
     if id "$username" &>/dev/null; then
@@ -118,81 +97,8 @@ elif command -v yum &> /dev/null; then
 fi
 
 # Change the timezone
-
-# Function to set the timezone to UTC in case of an error
-set_utc_timezone() {
-  echo "Error occurred while determining the timezone. Falling back to UTC."
-  timedatectl set-timezone UTC
-}
-
-# Function to get the timezone from the ipinfo.io API
-get_timezone_from_api() {
-  # Fetch geolocation information using the ipinfo.io API
-  response=$(curl -s https://ipinfo.io)
-
-  # Check if the curl command succeeded and the response contains the 'timezone' field
-  if [ $? -eq 0 ] && echo "$response" | grep -q "timezone"; then
-    # Extract the timezone directly from the JSON response
-    timezone=$(echo "$response" | jq -r '.timezone')
-
-    echo "Detected timezone: $timezone"
-    return 0
-  else
-    set_utc_timezone
-    return 1
-  fi
-}
-
-# Function to prompt the user to choose a timezone
-prompt_for_timezone() {
-  echo ""
-  echo "Choose a timezone option:"
-  echo "1) Use the detected timezone ($1)"
-  echo "2) Use UTC"
-  echo "3) Enter a custom timezone"
-  
-  # Read user choice
-  read -p "Enter the number corresponding to your choice: " choice
-  
-  case "$choice" in
-    1)
-      echo "You chose to use the detected timezone: $1"
-      timedatectl set-timezone "$1"
-      ;;
-    2)
-      echo "You chose to use UTC."
-      timedatectl set-timezone UTC
-      ;;
-    3)
-      # Ask for a custom timezone
-      read -p "Enter your preferred timezone (e.g., Europe/London, America/New_York): " custom_timezone
-
-      if timedatectl list-timezones | grep -q "$custom_timezone"; then
-          timedatectl set-timezone "$custom_timezone"
-      else
-          echo "Invalid timezone. Falling back to UTC."
-          timedatectl set-timezone UTC
-      fi
-      ;;
-    *)
-      echo "Invalid choice. Falling back to UTC."
-      timedatectl set-timezone UTC
-      ;;
-  esac
-}
-
-# Main script execution starts here
-echo "Attempting to detect and set the timezone..."
-
-# Try to get the detected timezone from the API
-if get_timezone_from_api; then
-  # If the timezone was successfully detected, prompt the user for their choice
-  prompt_for_timezone "$timezone"
-else
-  # If no timezone was detected, ask the user to fall back to UTC
-  echo "Unable to detect timezone. Falling back to UTC."
-  timedatectl set-timezone UTC
-fi
+echo "Setting timezone to $timezone..."
+timedatectl set-timezone "$timezone"
 
 # Change the hostname
 prompt_for_hostname
@@ -209,11 +115,7 @@ create_user_account
 echo "Modifying SSH configuration..."
 if [ -f "$sshd_config" ]; then
     # Set PermitRootLogin to no
-    if ! grep -q "^PermitRootLogin" "$sshd_config"; then
-        echo "PermitRootLogin no" >> "$sshd_config"
-    else
-        sed -i 's/^PermitRootLogin.*/PermitRootLogin no/' "$sshd_config"
-    fi
+    sed -i 's/^PermitRootLogin .*/PermitRootLogin no/' "$sshd_config" || echo "PermitRootLogin no" >> "$sshd_config"
 
     # Set PasswordAuthentication to no
     if grep -q '^#PasswordAuthentication' "$sshd_config"; then
@@ -265,4 +167,4 @@ elif command -v yum &> /dev/null; then
     yum -y autoremove
 fi
 
-echo "System update complete! Timezone set to ${timezone:-UTC}, hostname set to $hostname, limited user created, sshd_config modified, and Docker installation completed if selected."
+echo "System update complete! Timezone set to $timezone, hostname set to $hostname, limited user created, sshd_config modified, and Docker installation completed if selected."