ports_and_services = {
    20: "ftp-data",
    21: "ftp",
    22: "ssh",
    23: "telnet",
    25: "smtp",
    53: "dns",
    67: "dhcp",
    68: "dhcp",
    69: "tftp",
    80: "http",
    110: "pop3",
    123: "ntp",
    137: "netbios-ns",
    138: "netbios-dgm",
    139: "netbios-ssn",
    143: "imap",
    161: "snmp",
    162: "snmp-trap",
    179: "bgp",
    443: "https",
    445: "microsoft-ds",
    465: "smtps",
    514: "syslog",
    587: "submission",
    631: "ipp",
    993: "imaps",
    995: "pop3s",
    3306: "mysql",
    3389: "rdp",
    5432: "postgresql",
    5900: "vnc",
    8080: "http-proxy"
}