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import argparse
import subprocess

def close_unused_ports(ports):
    for port in ports:
        subprocess.call(["iptables", "-A", "INPUT", "-p", "tcp", "--destination-port", port, "-j", "DROP"])

def limit_remote_access(ip_list):
    for ip in ip_list:
        subprocess.call(["iptables", "-A", "INPUT", "-s", ip, "-j", "ACCEPT"])
        subprocess.call(["iptables", "-A", "INPUT", "-j", "DROP"])

def update_system():
    subprocess.call(["apt-get", "update"])
    subprocess.call(["apt-get", "upgrade", "-y"])

def enforce_strong_password():
    subprocess.call(["passwd", "-d", "root"])
    subprocess.call(["passwd", "-l", "root"])

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Command line tool for optimizing server security")
    parser.add_argument("-c", "--close_ports", nargs="+", help="List of ports to be closed")
    parser.add_argument("-l", "--limit_access", nargs="+", help="List of IP addresses to be allowed")
    parser.add_argument("-u", "--update_system", action="store_true", help="Update system and applications")
    parser.add_argument("-p", "--enforce_password", action="store_true", help="Enforce strong password")
    args = parser.parse_args()

    if args.close_ports:
        close_unused_ports(args.close_ports)
    
    if args.limit_access:
        limit_remote_access(args.limit_access)
    
    if args.update_system:
        update_system()
    
    if args.enforce_password:
        enforce_strong_password()

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python server_security_tool.py -c 80 8080 -l 10.0.0.1 10.0.0.2 -u -p

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