{"id":92,"date":"2025-11-07T04:37:36","date_gmt":"2025-11-07T04:37:36","guid":{"rendered":"https:\/\/5047878.net\/blog\/?p=92"},"modified":"2025-11-07T04:37:38","modified_gmt":"2025-11-07T04:37:38","slug":"%ed%8c%8c%ec%9d%b4%ec%8d%acpython%ec%9c%bc%eb%a1%9c-%eb%b0%b0%ec%9a%b0%eb%8a%94-%ec%86%8c%ec%bc%93socket-%ed%86%b5%ec%8b%a0-%ea%b8%b0%ec%b4%88-%ec%98%88%ec%a0%9c","status":"publish","type":"post","link":"https:\/\/5047878.net\/?p=92","title":{"rendered":"\ud30c\uc774\uc36c(Python)\uc73c\ub85c \ubc30\uc6b0\ub294 \uc18c\ucf13(Socket) \ud1b5\uc2e0 \uae30\ucd08 \uc608\uc81c"},"content":{"rendered":"\n

\ud83e\udde0 \ud30c\uc774\uc36c(Python)\uc73c\ub85c \ubc30\uc6b0\ub294 \uc18c\ucf13(Socket) \ud1b5\uc2e0 \uae30\ucd08 \uc608\uc81c<\/h1>\n\n\n\n

\uc11c\ubc84\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8 \uac04\uc758 \ub370\uc774\ud130 \uc804\uc1a1\uc740 \ub124\ud2b8\uc6cc\ud06c \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \ud575\uc2ec\uc785\ub2c8\ub2e4.
\uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc774\uc6a9\ud574 TCP \uc18c\ucf13 \ud1b5\uc2e0<\/strong>\uc744 \uc9c1\uc811 \uad6c\ud604\ud574\ubcf4\uba70, \ub124\ud2b8\uc6cc\ud06c\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.
\ubcf5\uc7a1\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac\ub098 \ud504\ub808\uc784\uc6cc\ud06c \uc5c6\uc774, \uae30\ubcf8 socket \ubaa8\ub4c8<\/strong>\ub9cc\uc73c\ub85c \uac04\ub2e8\ud55c \uc11c\ubc84\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \ub9cc\ub4e4\uc5b4\ubcfc \uac70\uc608\uc694.<\/p>\n\n\n\n

\n\n\n\n

\ud83d\udd0d \uc18c\ucf13(Socket)\uc774\ub780?<\/h2>\n\n\n\n

\u2018\uc18c\ucf13(Socket)\u2019\uc774\ub780 \ub124\ud2b8\uc6cc\ud06c \uc0c1\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc8fc\uace0\ubc1b\uae30 \uc704\ud55c \ud1b5\uc2e0 \ucc3d\uad6c\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.
\uc27d\uac8c \ub9d0\ud574, \ub450 \ud504\ub85c\uadf8\ub7a8\uc774 \uc11c\ub85c \ub300\ud654\ud560 \uc218 \uc788\ub294 \ud1b5\ub85c<\/strong>\ub77c\uace0 \uc0dd\uac01\ud558\uba74 \ub429\ub2c8\ub2e4.
\uc608\ub97c \ub4e4\uc5b4, \uc6f9\ube0c\ub77c\uc6b0\uc800(\ud074\ub77c\uc774\uc5b8\ud2b8)\uac00 \uc11c\ubc84\uc5d0 \uc694\uccad\uc744 \ubcf4\ub0b4\uace0 HTML \ub370\uc774\ud130\ub97c \ubc1b\ub294 \uac83\ub3c4 \uc77c\uc885\uc758 \uc18c\ucf13 \ud1b5\uc2e0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc18c\ucf13 \ud1b5\uc2e0\uc740 \ud06c\uac8c \ub450 \uac00\uc9c0 \ubc29\uc2dd\uc73c\ub85c \ub098\ub269\ub2c8\ub2e4:<\/p>\n\n\n\n

    \n
  • TCP (Transmission Control Protocol)<\/strong>: \uc5f0\uacb0 \uae30\ubc18, \uc2e0\ub8b0\uc131 \ubcf4\uc7a5, \uc21c\uc11c \ubcf4\uc7a5<\/li>\n\n\n\n
  • UDP (User Datagram Protocol)<\/strong>: \ube44\uc5f0\uacb0\ud615, \ube60\ub974\uc9c0\ub9cc \uc2e0\ub8b0\uc131 \ub0ae\uc74c<\/li>\n<\/ul>\n\n\n\n

    \uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \ub370\uc774\ud130 \uc190\uc2e4\uc774 \uc5c6\uace0 \uc548\uc815\uc801\uc778 TCP \ubc29\uc2dd<\/strong>\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \n\n\n\n

    \u2699\ufe0f \ud30c\uc774\uc36c \uc18c\ucf13 \uc11c\ubc84(server.py) \ub9cc\ub4e4\uae30<\/h2>\n\n\n\n

    \uc544\ub798\ub294 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 TCP \uc11c\ubc84 \ucf54\ub4dc\uc785\ub2c8\ub2e4.
    \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc811\uc18d\ud558\uba74 \ubb38\uc790\uc5f4\uc744 \ubc1b\uc544\uc11c \uadf8\ub300\ub85c \ub418\ub3cc\ub824\uc8fc\ub294 \uad6c\uc870\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

    import socket\n\nHOST = '127.0.0.1'  # \uc11c\ubc84 IP \uc8fc\uc18c\nPORT = 5000         # \ud3ec\ud2b8 \ubc88\ud638\n\nserver_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\nserver_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)\nserver_socket.bind((HOST, PORT))\nserver_socket.listen()\n\nprint(f\"\uc11c\ubc84 \uc2dc\uc791! \ud074\ub77c\uc774\uc5b8\ud2b8 \uc811\uc18d \ub300\uae30 \uc911... (PORT: {PORT})\")\n\nclient_socket, addr = server_socket.accept()\nprint(f\"\ud074\ub77c\uc774\uc5b8\ud2b8 \uc811\uc18d\ub428: {addr}\")\n\nwhile True:\n    data = client_socket.recv(1024).decode()\n    if not data:\n        break\n    print(f\"\ud074\ub77c\uc774\uc5b8\ud2b8: {data}\")\n\n    response = f\"\uc11c\ubc84\uac00 \ubc1b\uc74c: {data}\"\n    client_socket.send(response.encode())\n\nclient_socket.close()\nserver_socket.close()\n<\/code><\/pre>\n\n\n\n
    \uc774 \ucf54\ub4dc\ub294 \ub2e4\uc74c \uc21c\uc11c\ub85c \ub3d9\uc791\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n
      \n
    1. \uc18c\ucf13 \uc0dd\uc131 (socket.socket<\/code>)<\/li>\n\n\n\n
    2. IP\uc640 \ud3ec\ud2b8 \ubc14\uc778\ub529 (bind<\/code>)<\/li>\n\n\n\n
    3. \ud074\ub77c\uc774\uc5b8\ud2b8 \uc811\uc18d \ub300\uae30 (listen<\/code> \/ accept<\/code>)<\/li>\n\n\n\n
    4. \uba54\uc2dc\uc9c0 \uc218\uc2e0 (recv<\/code>) \ubc0f \uc751\ub2f5 (send<\/code>)<\/li>\n\n\n\n
    5. \uc5f0\uacb0 \uc885\ub8cc (close<\/code>)<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n
      \ud83d\udcbb \ud074\ub77c\uc774\uc5b8\ud2b8(client.py) \ub9cc\ub4e4\uae30<\/h2>\n\n\n\n
      \uc11c\ubc84\uc640 \ud1b5\uc2e0\ud560 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud504\ub85c\uadf8\ub7a8\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
      import socket\n\nHOST = '127.0.0.1'\nPORT = 5000\n\nclient_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\nclient_socket.connect((HOST, PORT))\nprint(f\"\uc11c\ubc84({HOST}:{PORT})\uc5d0 \uc5f0\uacb0\ub428\")\n\nwhile True:\n    message = input(\"\ubcf4\ub0bc \uba54\uc2dc\uc9c0 \uc785\ub825 (exit \uc785\ub825 \uc2dc \uc885\ub8cc): \")\n    if message.lower() == 'exit':\n        break\n\n    client_socket.send(message.encode())\n    data = client_socket.recv(1024).decode()\n    print(f\"\uc11c\ubc84 \uc751\ub2f5: {data}\")\n\nclient_socket.close()\nprint(\"\ud074\ub77c\uc774\uc5b8\ud2b8 \uc885\ub8cc\")\n<\/code><\/pre>\n\n\n\n
      \uc774\uc81c \ub450 \ud30c\uc77c\uc744 \uac01\uac01 server.py<\/code>, client.py<\/code>\ub85c \uc800\uc7a5\ud558\uace0,
      \ud130\ubbf8\ub110 \ub450 \uac1c\ub97c \uc5f4\uc5b4 \uc11c\ubc84\ub97c \uba3c\uc800 \uc2e4\ud589\ud55c \ub4a4 \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc2e4\ud589<\/strong>\ud558\uba74 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n
      \n\n\n\n
      \ud83e\udde9 \uc2e4\ud589 \uc608\uc2dc<\/h2>\n\n\n\n
      \uc11c\ubc84 \ucf58\uc194<\/strong><\/p>\n\n\n\n
      \uc11c\ubc84 \uc2dc\uc791! \ud074\ub77c\uc774\uc5b8\ud2b8 \uc811\uc18d \ub300\uae30 \uc911... (PORT: 5000)\n\ud074\ub77c\uc774\uc5b8\ud2b8 \uc811\uc18d\ub428: ('127.0.0.1', 52344)\n\ud074\ub77c\uc774\uc5b8\ud2b8: \uc548\ub155\ud558\uc138\uc694\n\ud074\ub77c\uc774\uc5b8\ud2b8: \ud14c\uc2a4\ud2b8 \uba54\uc2dc\uc9c0\n<\/code><\/pre>\n\n\n\n
      \ud074\ub77c\uc774\uc5b8\ud2b8 \ucf58\uc194<\/strong><\/p>\n\n\n\n
      \uc11c\ubc84(127.0.0.1:5000)\uc5d0 \uc5f0\uacb0\ub428\n\ubcf4\ub0bc \uba54\uc2dc\uc9c0 \uc785\ub825 (exit \uc785\ub825 \uc2dc \uc885\ub8cc): \uc548\ub155\ud558\uc138\uc694\n\uc11c\ubc84 \uc751\ub2f5: \uc11c\ubc84\uac00 \ubc1b\uc74c: \uc548\ub155\ud558\uc138\uc694\n\ubcf4\ub0bc \uba54\uc2dc\uc9c0 \uc785\ub825 (exit \uc785\ub825 \uc2dc \uc885\ub8cc): \ud14c\uc2a4\ud2b8 \uba54\uc2dc\uc9c0\n\uc11c\ubc84 \uc751\ub2f5: \uc11c\ubc84\uac00 \ubc1b\uc74c: \ud14c\uc2a4\ud2b8 \uba54\uc2dc\uc9c0\n<\/code><\/pre>\n\n\n\n
      \uc774\ucc98\ub7fc \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc804\uc1a1\ud55c \uba54\uc2dc\uc9c0\ub97c \uc11c\ubc84\uac00 \ubc1b\uc544\uc11c \ucc98\ub9ac\ud558\uace0, \uc751\ub2f5\uc744 \ub3cc\ub824\uc8fc\ub294 \uac04\ub2e8\ud55c \uc591\ubc29\ud5a5 \ud1b5\uc2e0\uc774 \uad6c\ud604\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n
      \n\n\n\n
      \ud83d\ude80 \uc751\uc6a9\ud558\uae30<\/h2>\n\n\n\n
      \uc774 \uc608\uc81c\ub294 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \uad6c\uc870\uc774\uc9c0\ub9cc, \uc544\ub798\ucc98\ub7fc \ud655\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n
        \n
      • \uc5ec\ub7ec \ud074\ub77c\uc774\uc5b8\ud2b8 \ub3d9\uc2dc \uc811\uc18d \ucc98\ub9ac (\uc2a4\ub808\ub4dc\ub098 asyncio \uc0ac\uc6a9)<\/li>\n\n\n\n
      • UDP \ud1b5\uc2e0 \ubc29\uc2dd\uc73c\ub85c \ubcc0\uacbd<\/li>\n\n\n\n
      • \ucc44\ud305 \ud504\ub85c\uadf8\ub7a8, \uc6d0\uaca9 \uc81c\uc5b4, IoT \uc7a5\ube44 \ud1b5\uc2e0 \ub4f1\uc5d0 \uc751\uc6a9<\/li>\n\n\n\n
      • \uc11c\ubc84 \uc751\ub2f5\uc744 JSON \ud3ec\ub9f7\uc73c\ub85c \ub9cc\ub4e4\uc5b4 \ub370\uc774\ud130 \uad6c\uc870 \uc804\uc1a1<\/li>\n<\/ul>\n\n\n\n
        \uc2e4\uc81c \uc5c5\ubb34\uc6a9 \uc2dc\uc2a4\ud15c\uc774\ub098 IoT \ub514\ubc14\uc774\uc2a4 \uc81c\uc5b4\uc5d0\uc11c\ub3c4 \uc774\ub7f0 \ud615\ud0dc\uc758 TCP \ud1b5\uc2e0\uc774 \ub9ce\uc774 \ud65c\uc6a9\ub429\ub2c8\ub2e4.
        \ud2b9\ud788 \uc11c\ubc84-\ud074\ub77c\uc774\uc5b8\ud2b8 \uad6c\uc870\ub97c \uc774\ud574\ud558\uba74 REST API\ub098 MQTT \uac19\uc740 \uace0\uc218\uc900 \ud504\ub85c\ud1a0\ucf5c\ub3c4 \uc27d\uac8c \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
        \n\n\n\n
        \ud83d\udcdd \ub9c8\ubb34\ub9ac<\/h2>\n\n\n\n
        \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc758 socket \ubaa8\ub4c8<\/strong>\uc744 \uc774\uc6a9\ud574
        TCP \uae30\ubc18\uc758 \uac04\ub2e8\ud55c \uc11c\ubc84\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uad6c\ud604\ud574\ubd24\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
        \uc774 \uc608\uc81c \ud558\ub098\ub9cc \uc81c\ub300\ub85c \uc774\ud574\ud574\ub3c4,
        \ub124\ud2b8\uc6cc\ud06c\uc758 \ud575\uc2ec \uac1c\ub150\uc778 IP, \ud3ec\ud2b8, \uc5f0\uacb0, \uc1a1\uc218\uc2e0, \uc885\ub8cc<\/strong>\uc758 \ud750\ub984\uc744 \uac10 \uc7a1\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
        \ub2e4\uc74c \ub2e8\uacc4\ub85c\ub294 \uba40\ud2f0 \ud074\ub77c\uc774\uc5b8\ud2b8 \ucc98\ub9ac<\/strong>\ub098 **\ube44\ub3d9\uae30 \ud1b5\uc2e0(asyncio)**\uc5d0 \ub3c4\uc804\ud574\ubcf4\uc138\uc694.
        \ud30c\uc774\uc36c\uc758 \uac15\ub825\ud55c \ub124\ud2b8\uc6cc\ud0b9 \uae30\ub2a5\uc744 \ud65c\uc6a9\ud558\uba74,
        \uc6f9 \uc11c\ubc84, \ucc44\ud305 \uc11c\ubc84, IoT \ud1b5\uc2e0\uae4c\uc9c0 \uc9c1\uc811 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud83d\ude80<\/p>\n","protected":false},"excerpt":{"rendered":"
        \ud83e\udde0 \ud30c\uc774\uc36c(Python)\uc73c\ub85c \ubc30\uc6b0\ub294 \uc18c\ucf13(Socket) \ud1b5\uc2e0 \uae30\ucd08 \uc608\uc81c \uc11c\ubc84\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8 \uac04\uc758 \ub370\uc774\ud130 \uc804\uc1a1\uc740 \ub124\ud2b8\uc6cc\ud06c \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \ud575\uc2ec\uc785\ub2c8\ub2e4.\uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc774\uc6a9\ud574<\/p>\n","protected":false},"author":1,"featured_media":50,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,7],"tags":[],"class_list":["post-92","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it","category-python"],"_links":{"self":[{"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/posts\/92","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/5047878.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=92"}],"version-history":[{"count":1,"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/posts\/92\/revisions"}],"predecessor-version":[{"id":93,"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/posts\/92\/revisions\/93"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/5047878.net\/index.php?rest_route=\/wp\/v2\/media\/50"}],"wp:attachment":[{"href":"https:\/\/5047878.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=92"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/5047878.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=92"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/5047878.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=92"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}