{"id":491,"date":"2023-06-30T06:22:27","date_gmt":"2023-12-10T06:15:42","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/nmap%e3%81%ae%e3%82%b9%e3%82%a4%e3%83%83%e3%83%81%e3%81%a8%e3%82%b9%e3%82%ad%e3%83%a3%e3%83%b3%e3%82%bf%e3%82%a4%e3%83%97\/"},"modified":"2025-07-31T23:59:54","modified_gmt":"2025-07-31T14:59:54","slug":"nmap%e3%81%ae%e3%82%b9%e3%82%a4%e3%83%83%e3%83%81%e3%81%a8%e3%82%b9%e3%82%ad%e3%83%a3%e3%83%b3%e3%82%bf%e3%82%a4%e3%83%97","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/nmap%e3%81%ae%e3%82%b9%e3%82%a4%e3%83%83%e3%83%81%e3%81%a8%e3%82%b9%e3%82%ad%e3%83%a3%e3%83%b3%e3%82%bf%e3%82%a4%e3%83%97\/","title":{"rendered":"Nmap\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u30b9\u30ad\u30e3\u30f3\u30bf\u30a4\u30d7"},"content":{"rendered":"

Nmap\u306f\u3001\u304a\u305d\u3089\u304fPentester\u3084Hacker\u306e\u9593\u3067\u6700\u3082\u6709\u540d\u306a\u5075\u5bdf\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u5b58\u5728\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u30dd\u30fc\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30ca\u30fc\u3067\u3059\u3002\u307e\u305f\u3001\u9006DNS\u540d\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u63a8\u6e2c\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u7a2e\u985e\u3001MAC\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u95a2\u3059\u308b\u3055\u3089\u306a\u308b\u60c5\u5831\u3082\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u76e3\u67fb\u4e2d\u306b\u3082\u4fbf\u5229\u3067\u3059\uff01<\/p>\n

Nmap\u306e\u57fa\u672c\u7684\u306a\u69cb\u6587\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

$ nmap [<\/span>FLAGS]<\/span> [<\/span>IP]<\/span>\r\n<\/code><\/pre>\n
\u6642\u6298\u3001\u7279\u5b9a\u306e\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u306f\u3001sudo\u7279\u6a29\u3092\u6301\u3063\u3066\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
Nmap\u306e\u30b9\u30a4\u30c3\u30c1<\/h2>\n
Nmap\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u6e21\u3055\u308c\u308b\u30d5\u30e9\u30b0\u306e\u52a9\u3051\u3092\u501f\u308a\u3066\u3001\u30b9\u30ad\u30e3\u30f3\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u308b\u5f37\u529b\u3067\u30d1\u30ef\u30d5\u30eb\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u30b9\u30ad\u30e3\u30f3\u30c4\u30fc\u30eb\u3067\u3059\u3002\u91cd\u8981\u306a\u30d5\u30e9\u30b0\u306e\u3044\u304f\u3064\u304b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059:<\/p>\n
    \n
  • -h: Print a help summary page<\/li>\n
  • -sS: Perform a TCP SYN scan<\/li>\n
  • -sU: Perform a UDP scan<\/li>\n
  • -sV: Probe open ports to determine service\/version info<\/li>\n
  • -O: Enable OS detection<\/li>\n
  • -v: Enable verbosity. You can even set the verbosity level as such :-vv: Level 2 verbosity. The minimum level of verbosity advised for use.
    \n-v3: Level 3 verbosity. You can always specify the verbosity level by specifying a number like this.<\/li>\n
  • -oA: Same Nmap output in \u201cnormal\u201d, XML and grepable formats. However you can specify the format of your choice with :-oN: Redirect normal output to a given filename
    \n-oX: Produce output in a clean, XML format and store it in a given file
    \n-oG: Produce \u201cgrepable\u201d output and store it to a file. Deprecated format as users are now moving towards XML outputs.<\/li>\n
  • -A: Enables \u201caggressive\u201d scanning. Presently this enables OS detection (-O), version scanning (-sV), script scanning (-sC) and traceroute (\u2013traceroute)<\/li>\n
  • -p: Specify the ports to scan. It can be a single port as well as a range of ports. For Example :nmap -p 80 127.0.0.0.1: This scans port 80 on localhost
    \nnmap -p 1-100 127.0.0.1: This scans ports from 1 to 100 on localhost
    \nnmap -p- 127.0.0.1: This scans all the ports on the localhost<\/li>\n<\/ul>\n
    Nmap\u306e\u30b9\u30ad\u30e3\u30f3\u30bf\u30a4\u30d7\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002<\/h2>\n
    Nmap\u306f\u591a\u304f\u306e\u7570\u306a\u308b\u30b9\u30ad\u30e3\u30f3\u30bf\u30a4\u30d7\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6700\u3082\u4eba\u6c17\u306e\u3042\u308b\u3082\u306e\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
    1. TCP\u63a5\u7d9a\u30b9\u30ad\u30e3\u30f3\uff08-sT\uff09<\/h3>\n
    \u3053\u306e\u7a2e\u985e\u306e\u30b9\u30ad\u30e3\u30f3\u3067\u306f\u3001Nmap\u306fSYN\u30d5\u30e9\u30b0\u304c\u8a2d\u5b9a\u3055\u308c\u305fTCP\u30d1\u30b1\u30c3\u30c8\u3092\u30dd\u30fc\u30c8\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u30012\u3064\u306e\u3053\u3068\u304c\u8d77\u3053\u308a\u5f97\u307e\u3059\uff1a<\/p>\n
      \n
    • The target responds with an RST packet that signifies that the port is closed.<\/li>\n
    • Target doesn\u2019t respond at all, probably due to a firewall dropping all incoming packets in which case the port will be considered filtered<\/li>\n
    • The target responds back with a TCP packet with the SYN\/ACK flags set which would signify that the port is open and then Nmap would respond with a TCP packet with the ACK flag set and hence would complete the TCP 3-way handshake.<\/li>\n<\/ul>\n
      \u4ee5\u4e0b\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u65e5\u672c\u8a9e\u3067\u306e\u4e00\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3059\uff1a
      \n\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u3066RST\u30d1\u30b1\u30c3\u30c8\u3092\u8fd4\u4fe1\u3057\u305f\u308a\u3001\u3059\u3079\u3066\u306e\u7740\u4fe1\u30d1\u30b1\u30c3\u30c8\u3092\u7834\u68c4\u3059\u308b\u3053\u3068\u304c\u5bb9\u6613\u306a\u305f\u3081\u3001\u3053\u308c\u306f\u3042\u307e\u308a\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30b9\u30ad\u30e3\u30f3\u6280\u8853\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u3053\u306e\u65b9\u6cd5\u306fTCP\u306e3\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u5b8c\u4e86\u3059\u308b\u306e\u3092\u5f85\u3064\u305f\u3081\u3001\u975e\u5e38\u306b\u9045\u3044\u3067\u3059\u3002<\/p>\n
      2. SYN\u300c\u534a\u958b\u653e\u300d\u30b9\u30ad\u30e3\u30f3\uff08-sS\uff09<\/h3>\n
      SYN\u30b9\u30ad\u30e3\u30f3\u306f\u3001\u300c\u30cf\u30fc\u30d5\u30aa\u30fc\u30d7\u30f3\u300d\u307e\u305f\u306f\u300c\u30b9\u30c6\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u300d\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u3001\u4ee5\u524d\u306e\u624b\u6cd5\u3088\u308a\u3082\u6539\u5584\u3055\u308c\u305f\u65b9\u6cd5\u3067\u3059\u3002\u4ee5\u524d\u306e\u624b\u6cd5\u3067\u306f\u3001SYN\/ACK\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u5f8c\u306bACK\u30d5\u30e9\u30b0\u3092\u30bb\u30c3\u30c8\u3057\u305fTCP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u308a\u8fd4\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u65b0\u3057\u3044\u65b9\u6cd5\u3067\u306fRST\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u7e70\u308a\u8fd4\u3057\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u8a66\u307f\u308b\u306e\u3092\u9632\u304e\u3001\u30b9\u30ad\u30e3\u30f3\u6642\u9593\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/p>\n
      \u3053\u308c\u306f\u4ee5\u524d\u306e\u65b9\u6cd5\u306b\u6bd4\u3079\u3066\u6539\u5584\u3055\u308c\u305f\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n
        \n
      • They are faster<\/li>\n
      • They might be able to bypass some primitive firewalls<\/li>\n
      • Often, SYN Scans are not logged by applications running on the ports as most applications start logging a connection only after it has been fully established which is not the case with SYN Scans<\/li>\n<\/ul>\n
        \u305f\u3060\u3057\u3001\u5b89\u5b9a\u3057\u3066\u3044\u306a\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u58ca\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u672c\u756a\u74b0\u5883\u3067\u306e SYN \u30b9\u30ad\u30e3\u30f3\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002\u307e\u305f\u3001SYN\u30b9\u30ad\u30e3\u30f3\u306b\u306fsudo\u6a29\u9650\u304c\u5fc5\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u751f\u30d1\u30b1\u30c3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n
        \u5b9f\u969b\u306b\u306f\u3001sudo\u7279\u6a29\u3067\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001nmap\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067SYN\u30b9\u30ad\u30e3\u30f3\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f\u3001TCP\u30b9\u30ad\u30e3\u30f3\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
        3. UDP\u30b9\u30ad\u30e3\u30f3\uff08-sU\uff09<\/h3>\n
        UDP\u30b9\u30ad\u30e3\u30f3\u306f\u3001\u524d\u8ff0\u306e2\u3064\u306b\u6bd4\u3079\u3066\u4fe1\u983c\u6027\u304c\u4f4e\u3044\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001UDP\u63a5\u7d9a\u306f\u72b6\u614b\u3092\u6301\u305f\u306a\u3044\u305f\u3081\u3001TCP\u306e\u3088\u3046\u306a\u300c\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30e1\u30ab\u30cb\u30ba\u30e0\u300d\u304c\u5b58\u5728\u3057\u306a\u3044\u304b\u3089\u3067\u3059\u3002UDP\u306f\u300c\u30d5\u30a1\u30a4\u30a2\u30a2\u30f3\u30c9\u30d5\u30a9\u30fc\u30b2\u30c3\u30c8\u300d\u3068\u3044\u3046\u539f\u5247\u3067\u52d5\u4f5c\u3057\u3001\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u306b\u5411\u3051\u3066\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u3001\u305d\u308c\u304c\u5c4a\u304f\u3053\u3068\u3092\u671f\u5f85\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u901f\u5ea6\u304c\u91cd\u8996\u3055\u308c\u308b\u4e00\u65b9\u3067\u3001\u30dd\u30fc\u30c8\u306e\u958b\u653e\u72b6\u6cc1\u3092\u7279\u5b9a\u3059\u308b\u306e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
        \u30bf\u30fc\u30b2\u30c3\u30c8\u30dd\u30fc\u30c8\u306bUDP\u30d1\u30b1\u30c3\u30c8\u304c\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u30b7\u30ca\u30ea\u30aa\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n
          \n
        • Usually there is no response received in which case nmap marks the port as open|filtered. If no response is received yet, it sends another UDP packet to double check and if yet again no response is received, it marks the port as open|filtered and moves on<\/li>\n
        • It might get a UDP response back which is very rare. In such a scenario, the port is marked open<\/li>\n
        • If the port is closed and it receives an ICMP echo request back which signifies that the port is unreachable.<\/li>\n<\/ul>\n
          Nmap\u306b\u304a\u3051\u308b\u7279\u5225\u306a\u30b9\u30ad\u30e3\u30f3<\/h2>\n
          \u3053\u308c\u4ee5\u5916\u306b\u3082\u3001TCP SYN\u30b9\u30ad\u30e3\u30f3\u3088\u308a\u3082\u3055\u3089\u306b\u300c\u30b9\u30c6\u30eb\u30b9\u6027\u300d\u306e\u9ad8\u3044\u3001\u3042\u307e\u308a\u4eba\u6c17\u306e\u306a\u3044\u30b9\u30ad\u30e3\u30f3\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u793a\u3059\u3082\u306e\u3067\u3059\u3002<\/p>\n
          1. TCP\u30cc\u30eb\u30b9\u30ad\u30e3\u30f3\uff08-sN\uff09<\/h3>\n
          TCP Null\u30b9\u30ad\u30e3\u30f3\u3067\u306f\u3001\u9001\u4fe1\u3055\u308c\u308bTCP\u30d1\u30b1\u30c3\u30c8\u306b\u306f\u30d5\u30e9\u30b0\u304c\u4e00\u5207\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002RFC\u306b\u3088\u308b\u3068\u3001\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u306f\u3001\u30dd\u30fc\u30c8\u304c\u9589\u3058\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u30bf\u30fc\u30b2\u30c3\u30c8\u304b\u3089RST\u304c\u8fd4\u3063\u3066\u304f\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n
          2. TCP FIN\u30b9\u30ad\u30e3\u30f3\uff08-sF\uff09<\/h3>\n
          \u3053\u308c\u306fTCP Null\u30b9\u30ad\u30e3\u30f3\u3068\u975e\u5e38\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u5b8c\u5168\u306b\u7a7a\u306eTCP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u63a5\u7d9a\u3092\u6b63\u5e38\u306b\u9589\u3058\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308bFIN\u30d5\u30e9\u30b0\u304c\u30bb\u30c3\u30c8\u3055\u308c\u305f\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306fRFC\u306b\u5f93\u3063\u3066\u30af\u30ed\u30fc\u30ba\u30dd\u30fc\u30c8\u306b\u5bfe\u3057\u3066RST\u3092\u8fd4\u3055\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n
          3. TCP\u30af\u30ea\u30b9\u30de\u30b9\u30b9\u30ad\u30e3\u30f3\uff08-sX\uff09<\/h3>\n
          TCP Xmas\u30b9\u30ad\u30e3\u30f3\u306f\u3001\u6700\u5f8c\u306e2\u3064\u306e\u30b9\u30ad\u30e3\u30f3\u6280\u8853\u3068\u975e\u5e38\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001TCP\u30d1\u30b1\u30c3\u30c8\u306b\u306fPSH\u3001URG\u3001FIN\u30d5\u30e9\u30b0\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u5f8c\u306e2\u3064\u306e\u30b9\u30ad\u30e3\u30f3\u30bf\u30a4\u30d7\u3068\u540c\u69d8\u306b\u3001\u3053\u308c\u3082RFC\u306b\u3088\u308b\u30af\u30ed\u30fc\u30ba\u30c9\u30dd\u30fc\u30c8\u306e\u5834\u5408\u306fRST\u30d1\u30b1\u30c3\u30c8\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
          \u5236\u9650<\/h3>\n
          \u3053\u308c\u3089\u306e\u30b9\u30ad\u30e3\u30f3\u306f\u540c\u69d8\u306e\u6027\u8cea\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001UDP\u30b9\u30ad\u30e3\u30f3\u3068\u975e\u5e38\u306b\u4f3c\u305f\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u5fdc\u7b54\u3057\u304b\u3042\u308a\u307e\u305b\u3093\uff1a<\/p>\n
            \n
          • open|filtered : When no response is received then the port is categorized as this this because no response can mean only two things :The port is open
            \nThe port is protected behind a firewall hence filtered<\/li>\n
          • filtered : When the port is protected behind a firewall which sends an ICMP ping back<\/li>\n
          • closed : When it receives and RST packet<\/li>\n<\/ul>\n
            RFC 793\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30db\u30b9\u30c8\u306f\u30af\u30ed\u30fc\u30ba\u30c9\u30dd\u30fc\u30c8\u306b\u5bfe\u3057\u3066\u306f\u7570\u5e38\u306a\u30d1\u30b1\u30c3\u30c8\u306bRST TCP\u30d1\u30b1\u30c3\u30c8\u3067\u5fdc\u7b54\u3057\u3001\u30aa\u30fc\u30d7\u30f3\u30dd\u30fc\u30c8\u306b\u5bfe\u3057\u3066\u306f\u5fdc\u7b54\u3057\u306a\u3044\u3088\u3046\u306b\u898f\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u4e00\u90e8\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3053\u306e\u6163\u4f8b\u304c\u5426\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u52d5\u4f5c\u306f\u4e3b\u306bMicrosoft Windows\u30b5\u30fc\u30d0\u30fc\u3084\u4e00\u90e8\u306eCISCO\u30c7\u30d0\u30a4\u30b9\u3067\u89b3\u5bdf\u3055\u308c\u3001\u3059\u3079\u3066\u306e\u7570\u5e38\u306a\u30d1\u30b1\u30c3\u30c8\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u7834\u68c4\u3055\u308c\u307e\u3059\u3002<\/p>\n
            Nmap\u3092\u4f7f\u7528\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30db\u30b9\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u3002<\/h2>\n
            \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3057\u305f\u969b\u306b\u6700\u3082\u91cd\u8981\u306a\u3053\u3068\u306e\u4e00\u3064\u306f\u3001\u3055\u3089\u306a\u308b\u8abf\u67fb\u3092\u884c\u3046\u524d\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u3059\u3079\u3066\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u30db\u30b9\u30c8\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u300cPing Sweep\u300d\u3068\u547c\u3070\u308c\u308b\u65b9\u6cd5\u3067\u884c\u308f\u308c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306eIP\u306bICMP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u3066\u5fdc\u7b54\u3092\u5f85\u3061\u307e\u3059\u3002ICMP\u30d1\u30b1\u30c3\u30c8\u3067\u5fdc\u7b54\u304c\u8fd4\u3063\u3066\u304f\u308b\u30db\u30b9\u30c8\u306f\u3001\u3053\u306e\u5834\u5408\u306b\u304a\u3044\u3066\u30a2\u30af\u30c6\u30a3\u30d6\u3068\u898b\u306a\u3055\u308c\u307e\u3059\u3002<\/p>\n
            \u6b21\u306e\u3088\u3046\u306b\u3001\u30cf\u30a4\u30d5\u30f3\u307e\u305f\u306fCIDR\u3092\u4f7f\u7528\u3057\u3066\u30bf\u30fc\u30b2\u30c3\u30c8\u306eIP\u7bc4\u56f2\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n
            $ nmap -sn 192.168.0.1-254\r\n<\/code><\/pre>\n
            \u307e\u305f\u306f\u3001<\/p>\n
            $ nmap -sn 192.168.0.0\/24\r\n<\/code><\/pre>\n
            \u300c-sn\u300d\u30d5\u30e9\u30b0\u306f\u3001\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30f3\u3092\u6291\u5236\u3057\u3001nmap\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30db\u30b9\u30c8\u3092\u7279\u5b9a\u3059\u308b\u969b\u306bICMP\u30a8\u30b3\u30fc\u30d1\u30b1\u30c3\u30c8\uff08\u307e\u305f\u306f\u30b9\u30fc\u30d1\u30fc\u30e6\u30fc\u30b6\u30fc\u6a29\u9650\u3067\u5b9f\u884c\u3057\u305f\u5834\u5408\u306fARP\u30ea\u30af\u30a8\u30b9\u30c8\uff09\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30dd\u30fc\u30c8443\u306b\u306fTCP SYN\u30d1\u30b1\u30c3\u30c8\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30dd\u30fc\u30c880\u306b\u306fTCP ACK\u30ea\u30af\u30a8\u30b9\u30c8\uff08\u30b9\u30fc\u30d1\u30fc\u30e6\u30fc\u30b6\u30fc\u6a29\u9650\u3067\u5b9f\u884c\u3057\u305f\u5834\u5408\u306fTCP SYN\uff09\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n
            Nmap\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b8\u30f3<\/h2>\n
            Nmap\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b8\u30f3(NSE)\u306f\u3001Nmap\u306e\u6a5f\u80fd\u3092\u3055\u3089\u306b\u62e1\u5f35\u3059\u308b\u5f37\u529b\u306a\u8ffd\u52a0\u6a5f\u80fd\u3067\u3059\u3002Lua\u3067\u66f8\u304b\u308c\u3066\u304a\u308a\u3001\u8106\u5f31\u6027\u3084\u653b\u6483\u306e\u30c6\u30b9\u30c8\u306a\u3069\u3001\u591a\u304f\u306e\u4f5c\u696d\u3092\u81ea\u52d5\u5316\u3059\u308b\u305f\u3081\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
            \u305f\u304f\u3055\u3093\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u304c\u3042\u308a\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u306e\u5f79\u7acb\u3064\u30ab\u30c6\u30b4\u30ea\u30fc\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
              \n
            • safe:- Won\u2019t affect the target<\/li>\n
            • intrusive:- Not safe: likely to affect the target<\/li>\n
            • vuln:- Scan for vulnerabilities<\/li>\n
            • exploit:- Try to exploit a vulnerability<\/li>\n
            • auth:- Attempt to bypass authentication for running services<\/li>\n
            • brute:- Try to brute force credentials for running services<\/li>\n
            • discovery:- Attempt to query running services for further information about the network (<\/li>\n<\/ul>\n
              \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u300c–script=<\u30b9\u30af\u30ea\u30d7\u30c8\u540d>\u300d\u3068\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
              \u540c\u6642\u306b\u8907\u6570\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3059\u308b\u5834\u5408\u306f\u3001–script=<\u30b9\u30af\u30ea\u30d7\u30c8\u540d1>\u3001<\u30b9\u30af\u30ea\u30d7\u30c8\u540d2>\u306e\u3088\u3046\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u540d\u524d\u3092\u533a\u5207\u3063\u3066\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
              \u3044\u304f\u3064\u304b\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u306f\u3001–script-args \u3067\u6307\u5b9a\u3067\u304d\u308b\u5f15\u6570\u3082\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
              \u4e00\u90e8\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u306f\u3001\u7d44\u307f\u8fbc\u307e\u308c\u305f\u30d8\u30eb\u30d7\u30e1\u30cb\u30e5\u30fc\u304c\u3042\u308a\u3001\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
              $ nmap --script-help <<\/span>script-name><\/span>\r\n<\/code><\/pre>\n
              \u3053\u3061\u3089\u3067\u8a73\u3057\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u4e00\u89a7\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
              \u7d50\u8ad6<\/h2>\n
              Nmap\u306b\u306f\u7121\u6599\u3067\u304d\u3061\u3093\u3068\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u3002\u516c\u5f0f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u306f\u3001\u30d5\u30e9\u30b0\u3084\u30b9\u30af\u30ea\u30d7\u30c8\u306a\u3069\u306e\u60c5\u5831\u3092\u305f\u304f\u3055\u3093\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u30d5\u30e9\u30b0\u3084\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8a66\u3057\u3066\u3001\u7570\u306a\u308b\u74b0\u5883\u4e0b\u3067\u306e\u51fa\u529b\u306e\u9055\u3044\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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