Ubuntu/old/Initial setup

import subprocess

# Set the domain name and administrator credentials
domain_name = "example.com"
admin_username = "administrator"
admin_password = "password"

# Set Hostname
def set_hostname():
    hostname = subprocess.run(["hostname"], stdout=subprocess.PIPE, check=True).stdout.decode().strip()
    hostname = hostname.split(".")[0]
    subprocess.run(["sudo", "hostnamectl", "set-hostname", hostname], check=True)

# Install the necessary packages
def install_packages():
    packages = ["realmd", "libnss-sss", "libpam-sss", "sssd", "sssd-tools", "adcli", "samba-common-bin", "oddjob", "oddjob-mkhomedir", "packagekit", "python-ldap", "net-tools", "network-manager", "policycoreutils"]
    subprocess.run(["sudo", "apt-get", "install", "-y", *packages], check=True)

# Copy the files from the remote server
def copy_files(file_name):
    subprocess.run(["scp", "anonymous@ptiwa001:"+file_name, "~/"], check=True)

# Join the domain using realm
def join_domain():
    subprocess.run(["sudo", "realm", "join", "--user", f"{admin_username}%'{admin_password}'", domain_name], check=True)
    # Verify that the join was successful
    result = subprocess.run(["sudo", "net", "ads", "testjoin"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    if result.returncode == 0:
        print("Successfully joined the domain")
    else:
        print("Failed to join the domain. Error: ",result.stderr.decode())

# Activate creation of homedir
def activate_mkhomedir():
    subprocess.run(["sudo", "bash", "-c", "cat > /usr/share/pam-configs/mkhomedir <<EOF\nName: activate mkhomedir\nDefault: yes\nPriority: 900\nSession-Type: Additional\nSession:\n\tRequired\tpam_mkhomedir.so umask=0022 skel=/etc/skel\nEOF"], check=True)
    subprocess.run(["sudo", "pam-auth-update", "--package", "--enable", "mkhomedir"], check=True)

    # Set fully qualified domain names to false
    subprocess.run(["sudo", "sed", "-i", "s/use_fully_qualified_names = True/use_fully_qualified_names = False/g", "/etc/sssd/sssd.conf"], check=True)
    subprocess.run(["sudo", "systemctl", "restart", "sssd.service"], check=True)

    # Install Falcon_sensor.deb file
    subprocess.run(["sudo", "dpkg", "-i", "~/falcon-sensor_6.46.0-14306.deb"], check=True)

    # Run additional Crowdstrike commands
    subprocess.run(["sudo", "/opt/CrowdStrike/falconctl", "-s", "--cid=D0511099B3FF494D8B87F48C4AB90201-56"], check=True)
    subprocess.run(["sudo", "systemctl", "start", "falcon-sensor"], check=True)
    result = subprocess.run(["sudo", "systemctl", "status", "falcon-sensor"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    if result.returncode == 0:
        print("falcon-sensor service is running.")
    else:
        print("falcon-sensor service is not running. Error: ", result.stderr.decode())

    # Install Ninja.deb file
    subprocess.run(["sudo", "dpkg", "-i", "~/ninja-agent.deb"], check=True)

    # Run additional Ninja commands
    subprocess.run(["sudo", "systemctl", "start", "ninjarmm-agent.service"], check=True)
    result = subprocess.run(["sudo", "systemctl", "status", "ninjarmm-agent.service"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    if result.returncode == 0:
        print("ninjarmm-agent service is running.")
    else:
        print("ninjarmm-agent service is not running. Error: ", result.stderr.decode())
    
    # Permit domain groups
    hostname = subprocess.run(["hostname"], stdout=subprocess.PIPE, check=True).stdout.decode().strip()
    group_name = f"Access - Admin - {hostname}"
    subprocess.run(["sudo", "realm", "deny", "--all"], check=True)
    subprocess.run(["sudo", "realm", "permit", "-g", "Domain Admins"], check=True)
    subprocess.run(["sudo", "realm", "permit", "-g", "Access - Admin - All Servers"], check=True)
    subprocess.run(["sudo", "realm", "permit", "-g", group_name], check=True)

    # Edit the sudoers file
    subprocess.run(["sudo", "visudo", "-f", "/etc/sudoers.d/LocalAdmins"], check=True)
    subprocess.run(["sudo", "bash", "-c", f"echo '%Domain\ Admins     ALL=(ALL:ALL)   ALL' >> /etc/sudoers.d/LocalAdmins"], check=True)
    subprocess.run(["sudo", "bash", "-c", f"echo '%Access\ -\ Admin\ -\ All\ Servers     ALL=(ALL)   ALL' >> /etc/sudoers.d/LocalAdmins"], check=True)
    subprocess.run(["sudo", "bash", "-c", f"echo '%{group_name}     ALL=(ALL)   ALL' >> /etc/sudoers.d/LocalAdmins"], check=True)