{"id":9979,"date":"2025-04-18T17:43:41","date_gmt":"2025-04-18T09:43:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/9979.html"},"modified":"2025-04-18T17:43:41","modified_gmt":"2025-04-18T09:43:41","slug":"linux-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%89%ef%bc%89-%e5%9f%ba%e4%ba%8etcp%e7%9a%84%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af-%e5%ae%a2%e6%88%b7%e7%ab%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/9979.html","title":{"rendered":"Linux \u7f51\u7edc\u7f16\u7a0b\uff08\u4e09\uff09\u2014\u2014\u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef"},"content":{"rendered":"<p id=\"main-toc\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<p id=\"3%C2%A0%E5%9F%BA%E4%BA%8ETCP%E7%9A%84%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF-toc\" style=\"margin-left:0px\">3\u00a0\u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef<\/p>\n<p id=\"3.1%20TCP%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E7%9A%84%E9%BB%98%E8%AE%A4%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E9%A1%BA%E5%BA%8F-toc\" style=\"margin-left:40px\">3.1 TCP \u670d\u52a1\u5668\u7aef\u7684\u9ed8\u8ba4\u51fd\u6570\u8c03\u7528\u987a\u5e8f<\/p>\n<p id=\"3.2%20TCP%E5%AE%A2%E6%88%B7%E7%AB%AF%E7%9A%84%E9%BB%98%E8%AE%A4%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E9%A1%BA%E5%BA%8F-toc\" style=\"margin-left:40px\">3.2 TCP\u5ba2\u6237\u7aef\u7684\u9ed8\u8ba4\u51fd\u6570\u8c03\u7528\u987a\u5e8f<\/p>\n<p id=\"3.3%20%E5%9F%BA%E4%BA%8ETCP%E7%9A%84%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E5%85%B3%E7%B3%BB-toc\" style=\"margin-left:40px\">3.3 \u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef\u51fd\u6570\u8c03\u7528\u5173\u7cfb<\/p>\n<p id=\"3.4%20%E5%AE%9E%E7%8E%B0%E8%BF%AD%E4%BB%A3%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF-toc\" style=\"margin-left:40px\">3.4 \u5b9e\u73b0\u8fed\u4ee3\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef<\/p>\n<p id=\"3.5%20%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%E5%AE%8C%E7%BE%8E%E5%AE%9E%E7%8E%B0-toc\" style=\"margin-left:40px\">3.5 \u56de\u58f0\u5ba2\u6237\u7aef\u5b8c\u7f8e\u5b9e\u73b0<\/p>\n<p id=\"3.5.1%20%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%E9%97%AE%E9%A2%98%E8%A7%A3%E5%86%B3%E6%96%B9%E6%B3%95-toc\" style=\"margin-left:80px\">3.5.1 \u56de\u58f0\u5ba2\u6237\u7aef\u95ee\u9898\u89e3\u51b3\u65b9\u6cd5<\/p>\n<p id=\"3.5.2%20%E5%A6%82%E6%9E%9C%E9%97%AE%E9%A2%98%E4%B8%8D%E5%9C%A8%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%EF%BC%9A%E5%AE%9A%E4%B9%89%E5%BA%94%E7%94%A8%E5%B1%82%E5%8D%8F%E8%AE%AE-toc\" style=\"margin-left:80px\">3.5.2 \u5982\u679c\u95ee\u9898\u4e0d\u5728\u56de\u58f0\u5ba2\u6237\u7aef&#xff1a;\u5b9a\u4e49\u5e94\u7528\u5c42\u534f\u8bae<\/p>\n<hr id=\"hr-toc\" \/>\n<h2 id=\"3%C2%A0%E5%9F%BA%E4%BA%8ETCP%E7%9A%84%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF\">3\u00a0\u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef<\/h2>\n<h3 id=\"3.1%20TCP%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E7%9A%84%E9%BB%98%E8%AE%A4%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E9%A1%BA%E5%BA%8F\">3.1 TCP \u670d\u52a1\u5668\u7aef\u7684\u9ed8\u8ba4\u51fd\u6570\u8c03\u7528\u987a\u5e8f<\/h3>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"342\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094339-68021ecb83c6f.png\" width=\"245\" \/><\/p>\n<h3 id=\"3.2%20TCP%E5%AE%A2%E6%88%B7%E7%AB%AF%E7%9A%84%E9%BB%98%E8%AE%A4%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E9%A1%BA%E5%BA%8F\">3.2 TCP\u5ba2\u6237\u7aef\u7684\u9ed8\u8ba4\u51fd\u6570\u8c03\u7528\u987a\u5e8f<\/h3>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"254\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094339-68021ecb98e17.png\" width=\"270\" \/><\/p>\n<p>\u6211\u4eec\u89c2\u5bdf\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6700\u540e\u7684 hello_client.c \u4ee3\u7801\u53d1\u73b0&#xff0c;\u5b9e\u73b0\u670d\u52a1\u5668\u7aef\u5fc5\u987b\u7ecf\u8fc7\u7684\u6b65\u9aa4\u4e4b\u4e00\u5c31\u662f\u4e3a\u5957\u63a5\u5b57\u5206\u914d IP \u5730\u5740\u548c\u7aef\u53e3\u53f7&#xff0c;\u4f46\u5728\u5ba2\u6237\u7aef\u5b9e\u73b0\u8fc7\u7a0b\u4e2d&#xff0c;\u5e76\u672a\u663e\u5f0f\u8fdb\u884c\u5957\u63a5\u5b57\u5730\u5740\u5206\u914d&#xff0c;\u800c\u662f\u5728\u521b\u5efa\u5957\u63a5\u5b57\u540e\u76f4\u63a5\u8c03\u7528\u4e86 connect \u51fd\u6570\u3002\u8fd9\u662f\u5426\u610f\u5473\u7740\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u65e0\u9700\u5206\u914d IP \u548c\u7aef\u53e3\u53f7\u5462&#xff1f;\u5f53\u7136\u4e0d\u662f&#xff0c;\u56e0\u4e3a<span style=\"background-color:#f9eda6\">\u5ba2\u6237\u7aef\u5728\u8c03\u7528 connect \u51fd\u6570\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4f1a\u81ea\u52a8\u4e3a\u5176\u5206\u914d IP \u5730\u5740\u548c\u7aef\u53e3\u53f7&#xff0c;\u800c\u65e0\u9700\u663e\u5f0f\u8c03\u7528 bind \u51fd\u6570\u8fdb\u884c\u5206\u914d\u3002<\/span><\/p>\n<h3 id=\"3.3%20%E5%9F%BA%E4%BA%8ETCP%E7%9A%84%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF%E5%87%BD%E6%95%B0%E8%B0%83%E7%94%A8%E5%85%B3%E7%B3%BB\">3.3 \u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef\u51fd\u6570\u8c03\u7528\u5173\u7cfb<\/h3>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"370\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094339-68021ecbacb1d.png\" width=\"419\" \/><\/p>\n<p>\u670d\u52a1\u5668\u7aef\u521b\u5efa\u5957\u63a5\u5b57\u540e\u8fde\u7eed\u8c03\u7528 bind\u3001listen \u51fd\u6570\u8fdb\u4eba\u7b49\u5f85\u72b6\u6001&#xff0c;\u5ba2\u6237\u7aef\u901a\u8fc7\u8c03\u7528 connect \u51fd\u6570\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;<span style=\"background-color:#f9eda6\">\u5ba2\u6237\u7aef\u53ea\u80fd\u7b49\u5230\u670d\u52a1\u5668\u7aef\u8c03\u7528 listen \u51fd\u6570\u540e\u624d\u80fd\u8c03 connect \u51fd\u6570<\/span><span style=\"background-color:null\">\u3002<\/span>\u540c\u65f6\u8981\u6e05\u695a&#xff0c;<span style=\"background-color:#f9eda6\">\u5ba2\u6237\u7aef\u8c03\u7528 connect \u51fd\u6570\u524d&#xff0c;\u670d\u52a1\u5668\u7aef\u6709\u53ef\u80fd\u7387\u5148\u8c03\u7528 accept \u51fd\u6570\u3002\u5f53\u7136&#xff0c;\u6b64\u65f6\u670d\u52a1\u5668\u7aef\u5728\u8c03\u7528 accept \u51fd\u6570\u65f6\u8fdb\u4eba\u963b\u585e&#xff08;blocking&#xff09;\u72b6\u6001&#xff0c;\u76f4\u5230\u5ba2\u6237\u7aef\u8c03 connect \u51fd\u6570\u4e3a\u6b62\u3002<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u8c03\u7528 connect \u51fd\u6570\u540e&#xff0c;\u53d1\u751f\u5982\u4e0b\u60c5\u51b5\u4e4b\u4e00\u624d\u4f1a\u8fd4\u56de&#xff08;\u5b8c\u6210\u51fd\u6570\u8c03\u7528&#xff09;<\/p>\n<ul>\n<li><span style=\"background-color:#f9eda6\">\u670d\u52a1\u5668\u7aef\u63a5\u6536\u8fde\u63a5\u8bf7\u6c42<\/span><\/li>\n<li><span style=\"background-color:#f9eda6\">\u53d1\u751f\u65ad\u7f51\u7b49\u5f02\u5e38\u60c5\u51b5\u800c\u4e2d\u65ad\u8fde\u63a5\u8bf7\u6c42<\/span><\/li>\n<\/ul>\n<p>\u9700\u8981\u6ce8\u610f&#xff0c;\u6240\u8c13\u7684 \u201c\u63a5\u6536\u8fde\u63a5\u201d \u5e76\u4e0d\u610f\u5473\u7740\u670d\u52a1\u5668\u7aef\u8c03\u7528 accept \u51fd\u6570&#xff0c;\u5176\u5b9e\u662f<span style=\"background-color:#f9eda6\">\u670d\u52a1\u5668\u7aef\u628a\u8fde\u63a5\u8bf7\u6c42\u4fe1\u606f\u8bb0\u5f55\u5230\u7b49\u5f85\u961f\u5217\u3002\u56e0\u6b64connect\u51fd\u6570\u8fd4\u56de\u540e\u5e76\u4e0d\u7acb\u5373\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002<\/span><\/p>\n<h3 id=\"3.4%20%E5%AE%9E%E7%8E%B0%E8%BF%AD%E4%BB%A3%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%2F%E5%AE%A2%E6%88%B7%E7%AB%AF\">3.4 \u5b9e\u73b0\u8fed\u4ee3\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef<\/h3>\n<p><span style=\"background-color:#f9eda6\">\u56de\u58f0\u670d\u52a1\u7aef\/\u5ba2\u6237\u7aef\u5c31\u662f\u5c06\u5ba2\u6237\u7aef\u4f20\u8f93\u7684\u5b57\u7b26\u4e32\u6570\u636e\u539f\u5c01\u4e0d\u52a8\u5730\u4f20\u56de\u5ba2\u6237\u7aef&#xff0c;\u5c31\u50cf\u56de\u58f0\u4e00\u6837\u3002<\/span>\u524d\u4e00\u7ae0\u8282\u7684 Hello world \u670d\u52a1\u5668\u7aef\u5904\u7406\u5b8c 1 \u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u5373\u9000\u51fa&#xff0c;\u8fde\u63a5\u8bf7\u6c42\u7b49\u5f85\u961f\u5217\u5b9e\u9645\u6ca1\u6709\u592a\u5927\u610f\u4e49&#xff0c;\u4e5f\u5e76\u4e0d\u7b26\u5408\u5b9e\u9645\u9700\u6c42&#xff0c;\u56e0\u6b64\u9700\u8981\u63d2\u5165\u5faa\u73af\u8bed\u53e5\u53cd\u590d\u8c03\u7528 accept \u51fd\u6570\u3002<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"383\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094339-68021ecbc0c00.png\" width=\"198\" \/><\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;<span style=\"background-color:#f9eda6\">\u5728\u8c03\u7528 close \u51fd\u6570\u65f6&#xff0c;\u5173\u95ed\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u662f accept \u51fd\u6570\u8c03\u7528\u65f6\u521b\u5efa\u7684\u5957\u63a5\u5b57&#xff08;\u7528\u6765\u901a\u4fe1\u7684\u5957\u63a5\u5b57&#xff09;\u3002\u8c03\u7528 close \u51fd\u6570\u5c31\u610f\u5473\u7740\u7ed3\u675f\u4e86\u9488\u5bf9\u67d0\u4e00\u5ba2\u6237\u7aef\u7684\u670d\u52a1\u3002<\/span>\u6b64\u65f6\u5982\u679c\u8fd8\u60f3\u670d\u52a1\u4e8e\u5176\u4ed6\u5ba2\u6237\u7aef&#xff0c;\u5c31\u8981\u91cd\u65b0\u8c03\u7528accept\u51fd\u6570\u3002<span style=\"background-color:#f9eda6\">\u76ee\u524d\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u670d\u52a1\u4e8e\u4e00\u4e2a\u5ba2\u6237\u7aef&#xff0c;\u5c06\u6765\u53ef\u4ee5\u901a\u8fc7\u591a\u7ebf\u7a0b\u7f16\u5199\u540c\u65f6\u670d\u52a1\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u670d\u52a1\u5668\u7aef\u3002<\/span><\/p>\n<p>&#xff08;1&#xff09;\u6848\u4f8b\u9700\u6c42<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u7aef\u5728\u540c\u4e00\u65f6\u523b\u53ea\u4e0e\u4e00\u4e2a\u5ba2\u6237\u7aef\u76f8\u8fde&#xff0c;\u5e76\u63d0\u4f9b\u56de\u58f0\u670d\u52a1\u3002<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u4f9d\u6b21\u54115\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u5e76\u9000\u51fa\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u63a5\u6536\u7528\u6237\u8f93\u4eba\u7684\u5b57\u7b26\u4e32\u5e76\u53d1\u9001\u5230\u670d\u52a1\u5668\u7aef\u3002<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5c06\u63a5\u6536\u7684\u5b57\u7b26\u4e32\u6570\u636e\u4f20\u56de\u5ba2\u6237\u7aef&#xff0c;\u5373 \u201c\u56de\u58f0\u201d\u3002<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u4e0e\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u5b57\u7b26\u4e32\u56de\u58f0\u4e00\u76f4\u6267\u884c\u5230\u5ba2\u6237\u7aef\u8f93\u4ebaQ\/q\u4e3a\u6b62\u3002<\/li>\n<\/ul>\n<p>&#xff08;2&#xff09;\u670d\u52a1\u7aef echo_server.c<\/p>\n<p>#define handle_error(cmd,result)    \\\\<br \/>\n    if(result &lt; 0)                  \\\\<br \/>\n    {                               \\\\<br \/>\n        perror(cmd);                \\\\<br \/>\n        return -1;                  \\\\<br \/>\n    }                               \\\\<\/p>\n<p>int main(int argc, char const *argv[])<br \/>\n{<br \/>\n    struct sockaddr_in serv_addr,clnt_addr;<br \/>\n    char* message &#061; NULL;<br \/>\n    message &#061; malloc(sizeof(char)*1024);<br \/>\n    memset(&amp;serv_addr,0,sizeof(serv_addr));<br \/>\n    memset(&amp;clnt_addr,0,sizeof(clnt_addr));<br \/>\n    if(argc !&#061; 2) {<br \/>\n        printf(&#034;Usage&#xff1a;%s &lt;port&gt;\\\\n&#034;,argv[0]);<br \/>\n        exit(1);<br \/>\n    }<br \/>\n    if (!message) {<br \/>\n        perror(&#034;malloc server message&#034;);<br \/>\n        return 1;<br \/>\n    }<br \/>\n    serv_addr.sin_family &#061; AF_INET;<br \/>\n    serv_addr.sin_port &#061; htons(atoi(argv[1]));<br \/>\n    inet_pton(AF_INET,&#034;0.0.0.0&#034;,&amp;serv_addr.sin_addr);<\/p>\n<p>    int serv_sock &#061; socket(AF_INET,SOCK_STREAM,0);<br \/>\n    handle_error(&#034;socket&#034;,serv_sock);<\/p>\n<p>    int temp &#061; bind(serv_sock,(struct sockaddr*)&amp;serv_addr,sizeof(serv_addr));<br \/>\n    handle_error(&#034;bind&#034;,temp);<\/p>\n<p>    temp &#061; listen(serv_sock,128);<br \/>\n    handle_error(&#034;listen&#034;,temp);<\/p>\n<p>    int count;<br \/>\n    socklen_t clnt_len &#061; sizeof(clnt_addr);<br \/>\n    for(int i &#061; 0;i &lt; 5;i&#043;&#043;) {<br \/>\n        int clnt_sock&#061;accept(serv_sock,(struct sockaddr*)&amp;clnt_addr,&amp;clnt_len);<br \/>\n        if(clnt_sock &#061;&#061; -1) {<br \/>\n            handle_error(&#034;accept&#034;,clnt_sock);<br \/>\n        }<br \/>\n        else {<br \/>\n            printf(&#034;Connected client %d\\\\n&#034;,i&#043;1);<br \/>\n        }<br \/>\n        \/\/\u63a5\u6536\u6570\u636e&#xff0c;\u5b58\u50a8\u5728\u7f13\u5b58message<br \/>\n        while((count &#061; recv(clnt_sock,message,1024,0)) !&#061; 0) {<br \/>\n            printf(&#034;Message from client%d&#xff1a;%s&#034;,i&#043;1,message);<br \/>\n            \/\/\u5c06\u63a5\u6536\u5230\u7684\u6570\u636e\u53d1\u9001\u56de\u53bb<br \/>\n            temp_result &#061; send(clnt_sock,message,1024,0);<br \/>\n        }<br \/>\n        close(clnt_sock);<br \/>\n    }<br \/>\n    close(serv_sock);<br \/>\n    free(message);<br \/>\n    return 0;<br \/>\n} <\/p>\n<p>&#xff08;3&#xff09;\u5ba2\u6237\u7aef echo_client.c<\/p>\n<p>#define handle_error(cmd,result)    \\\\<br \/>\n    if(result &lt; 0)                  \\\\<br \/>\n    {                               \\\\<br \/>\n        perror(cmd);                \\\\<br \/>\n        return -1;                  \\\\<br \/>\n    }                               \\\\<\/p>\n<p>int main(int argc, char const *argv[])<br \/>\n{<br \/>\n    struct sockaddr_in serv_addr,clnt_addr;<br \/>\n    char* message &#061; NULL;<br \/>\n    message &#061; malloc(sizeof(char)*1024);<br \/>\n    memset(&amp;serv_addr,0,sizeof(serv_addr));<br \/>\n    memset(&amp;clnt_addr,0,sizeof(clnt_addr));<br \/>\n    if(argc !&#061; 3) {<br \/>\n        printf(&#034;Usage&#xff1a;%s &lt;IP&gt; &lt;port&gt;\\\\n&#034;,argv[0]);<br \/>\n        exit(1);<br \/>\n    }<br \/>\n    if (!message) {<br \/>\n        perror(&#034;malloc server message&#034;);<br \/>\n        return 1;<br \/>\n    }<br \/>\n    serv_addr.sin_family &#061; AF_INET;<br \/>\n    serv_addr.sin_port &#061; htons(atoi(argv[2]));<br \/>\n    inet_pton(AF_INET,argv[1],&amp;serv_addr.sin_addr);<\/p>\n<p>    int clnt_sock &#061; socket(AF_INET,SOCK_STREAM,0);<br \/>\n    handle_error(&#034;socket&#034;,clnt_sock);<\/p>\n<p>    int temp&#061;connect(clnt_sock,(struct sockaddr*)&amp;serv_addr,sizeof(serv_addr));<br \/>\n    handle_error(&#034;connect&#034;,temp);<br \/>\n    printf(&#034;Connected&#8230;&#8230;\\\\n&#034;);<\/p>\n<p>    while(1) {<br \/>\n        fputs(&#034;Input message(Q to quit):&#034;,stdout);<br \/>\n        \/\/\u4ece\u63a7\u5236\u53f0\u83b7\u53d6\u6570\u636e<br \/>\n        fgets(message,1024,stdin);<br \/>\n        if(!strcmp(message,&#034;q\\\\n&#034;) || !strcmp(message,&#034;Q\\\\n&#034;))<br \/>\n            break;<br \/>\n        temp_result &#061; send(clnt_sock,message,1024,0);<br \/>\n        \/\/\u63a5\u6536\u670d\u52a1\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e<br \/>\n        temp_result &#061; recv(clnt_sock,message,1024,0);<br \/>\n        printf(&#034;Message from server&#xff1a;%s&#034;,message);<br \/>\n    }<br \/>\n    close(clnt_sock);<br \/>\n    free(message);<br \/>\n    return 0;<br \/>\n} <\/p>\n<p>&#xff08;4&#xff09;\u6d4b\u8bd5\u7ed3\u679c<\/p>\n<ul>\n<li>\u4e0b\u56fe\u662f\u7b2c\u4e00\u5f20\u6d4b\u8bd5\u7ed3\u679c\u56fe\u3002\u6211\u4eec\u53d1\u73b0&#xff0c;\u901a\u8fc7\u8fd9\u79cd for \u5faa\u73af\u7684\u65b9\u5f0f&#xff0c;\u670d\u52a1\u7aef\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u4e0e\u4e00\u4e2a\u5ba2\u6237\u7aef\u76f8\u8fde&#xff0c;\u670d\u52a1\u5668\u7aef\u628a\u8fde\u63a5\u8bf7\u6c42\u4fe1\u606f\u8bb0\u5f55\u5230\u7b49\u5f85\u961f\u5217&#xff0c;\u56e0\u6b64 connect \u51fd\u6570\u540e\u5e76\u4e0d\u4f1a\u7acb\u5373\u8fd4\u56de\u6570\u636e&#xff0c;\u800c\u662f\u5904\u4e8e\u6302\u8d77\u72b6\u6001<\/li>\n<\/ul>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"496\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094339-68021ecbd2707.png\" width=\"666\" \/><\/p>\n<ul>\n<li>\u4e0b\u56fe\u662f\u7b2c\u4e8c\u5f20\u6d4b\u8bd5\u7ed3\u679c\u56fe\u3002\u5f53\u5ba2\u6237\u7aef1\u5173\u95ed\u8fde\u63a5\u540e&#xff0c;\u5ba2\u6237\u7aef 2 \u5f97\u4ee5\u4e0e\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u901a\u4fe1&#xff0c;\u800c\u5ba2\u6237\u7aef 3 \u4ecd\u7136\u88ab\u6302\u8d77\u5728\u8bf7\u6c42\u961f\u5217\u4e2d\u3002\u65e0\u8bba\u5ba2\u6237\u7aef3\u53d1\u9001\u4f55\u79cd\u6570\u636e&#xff0c;\u670d\u52a1\u7aef\u5747\u65e0\u6cd5\u63a5\u6536\u3002<\/li>\n<\/ul>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"473\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094340-68021ecc12dda.png\" width=\"668\" \/><\/p>\n<p>&#xff08;5&#xff09;\u56de\u58f0\u5ba2\u6237\u7aef\u5b58\u5728\u7684\u95ee\u9898<\/p>\n<ul>\n<li>\u5ba2\u6237\u7aef\u662f\u57fa\u4e8e TCP \u7684&#xff0c;\u591a\u6b21\u8c03\u7528 send \u51fd\u6570\u4f20\u9012\u7684\u5b57\u7b26\u4e32\u6709\u53ef\u80fd\u4e00\u6b21\u6027\u4f20\u9012\u5230\u670d\u52a1\u5668\u7aef\u3002\u6b64\u65f6\u5ba2\u6237\u7aef\u6709\u53ef\u80fd\u4ece\u670d\u52a1\u5668\u7aef\u6536\u5230\u591a\u4e2a\u5b57\u7b26\u4e32&#xff0c;\u6211\u4eec\u5e0c\u671b\u7684\u662f\u4e00\u6b21\u63a5\u6536\u4e00\u4e2a\u3002<span style=\"background-color:#f9eda6\">&#xff08;\u5ba2\u6237\u7aef\u53d1\u9001\u901f\u7387\u8fdc\u5927\u4e8e\u670d\u52a1\u7aef\u63a5\u6536\u901f\u7387&#xff09;<\/span><\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5e0c\u671b\u901a\u8fc7\u8c03\u75281\u6b21 send \u51fd\u6570\u4f20\u8f93\u6570\u636e&#xff0c;\u4f46\u5982\u679c\u5ba2\u6237\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u592a\u5927&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5c31\u6709\u53ef\u80fd\u628a\u6570\u636e\u5206\u6210\u591a\u4e2a\u6570\u636e\u5305\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d&#xff0c;\u5ba2\u6237\u7aef\u6709\u53ef\u80fd\u5728\u5c1a\u672a\u6536\u5230\u5168\u90e8\u6570\u636e\u5305\u65f6\u5c31\u8c03\u7528 recv \u51fd\u6570\u3002<\/li>\n<\/ul>\n<p>\u672c\u4f8b\u5b9e\u73b0\u7684\u56de\u58f0\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef\u7ed9\u51fa\u7684\u7ed3\u679c\u662f\u6b63\u786e\u7684&#xff0c;\u4f46\u8fd9\u53ea\u662f\u8fd0\u6c14\u597d\u7f62\u4e86&#xff01;\u53ea\u662f\u56e0\u4e3a\u6536\u53d1\u6570\u636e\u5c0f&#xff0c;\u800c\u4e14\u8fd0\u884c\u73af\u5883\u4e3a\u540c\u4e00\u53f0\u8ba1\u7b97\u673a\u6216\u76f8\u90bb\u7684\u4e24\u53f0\u8ba1\u7b97\u673a&#xff0c;\u6240\u4ee5\u6ca1\u53d1\u751f\u9519\u8bef&#xff0c;\u53ef\u5b9e\u9645\u4e0a\u4ecd\u5b58\u5728\u53d1\u751f\u9519\u8bef\u7684\u53ef\u80fd\u3002<\/p>\n<h3 id=\"3.5%20%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%E5%AE%8C%E7%BE%8E%E5%AE%9E%E7%8E%B0\">3.5 \u56de\u58f0\u5ba2\u6237\u7aef\u5b8c\u7f8e\u5b9e\u73b0<\/h3>\n<h4 id=\"3.5.1%20%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%E9%97%AE%E9%A2%98%E8%A7%A3%E5%86%B3%E6%96%B9%E6%B3%95\">3.5.1 \u56de\u58f0\u5ba2\u6237\u7aef\u95ee\u9898\u89e3\u51b3\u65b9\u6cd5<\/h4>\n<p>\u8fd9\u4e2a\u95ee\u9898\u5176\u5b9e\u5f88\u5bb9\u6613\u89e3\u51b3&#xff0c;\u56e0\u4e3a\u53ef\u4ee5\u63d0\u524d\u8bbe\u5b9a\u63a5\u53d7\u6570\u636e\u7684\u5927\u5c0f\u3002\u82e5\u4e4b\u524d\u4f20\u8f93\u4e8620\u5b57\u8282\u957f\u7684\u5b57\u7b26\u4e32&#xff0c;\u5219\u518d\u63a5\u6536\u65f6\u5faa\u73af\u8c03\u7528 recv \u51fd\u6570\u8bfb\u53d6 20 \u4e2a\u5b57\u8282\u5373\u53ef\u3002\u65e2\u7136\u6709\u4e86\u89e3\u51b3\u529e\u6cd5&#xff0c;\u4fee\u6539 3.4 \u5c0f\u8282\u5ba2\u6237\u7aef echo_client.c \u4ee3\u7801\u4e2d while \u5faa\u73af\u4ee3\u7801\u3002<\/p>\n<p>while(1) {<br \/>\n    fputs(&#034;Input message(Q to quit):&#034;,stdout);<br \/>\n    \/\/\u4ece\u63a7\u5236\u53f0\u83b7\u53d6\u6570\u636e<br \/>\n    fgets(message,1024,stdin);<br \/>\n    if(!strcmp(message,&#034;q\\\\n&#034;) || !strcmp(message,&#034;Q\\\\n&#034;))<br \/>\n        break;<\/p>\n<p>    \/\/\u53d1\u9001\u4e86\u591a\u5c11\u5b57\u8282\u6570\u636e&#xff0c;\u5c31\u5faa\u73af\u63a5\u6536\u63a5\u6536\u591a\u5c11\u5b57\u8282\u6570\u636e<br \/>\n    str_len &#061; send(clnt_sock,message,1024,0);<br \/>\n    recv_len &#061; 0;<br \/>\n    \/\/\u82e5\u5199\u6210 recv_len&#061;str_len \u53ef\u80fd\u4f1a\u51fa\u73b0\u65e0\u9650\u5faa\u73af<br \/>\n    while (recv_len &lt; str_len) {<br \/>\n        recv_cnt &#061; recv(clnt_sock,message,1024,0);<br \/>\n        recv_len &#043;&#061; recv_cnt;<br \/>\n    }<br \/>\n    printf(&#034;Message from server&#xff1a;%s&#034;,message);<br \/>\n    memset(message,0,1024);<br \/>\n} <\/p>\n<h4 id=\"3.5.2%20%E5%A6%82%E6%9E%9C%E9%97%AE%E9%A2%98%E4%B8%8D%E5%9C%A8%E5%9B%9E%E5%A3%B0%E5%AE%A2%E6%88%B7%E7%AB%AF%EF%BC%9A%E5%AE%9A%E4%B9%89%E5%BA%94%E7%94%A8%E5%B1%82%E5%8D%8F%E8%AE%AE\" style=\"background-color:transparent\">3.5.2 \u5982\u679c\u95ee\u9898\u4e0d\u5728\u56de\u58f0\u5ba2\u6237\u7aef&#xff1a;\u5b9a\u4e49\u5e94\u7528\u5c42\u534f\u8bae<\/h4>\n<p><span style=\"background-color:#f9eda6\">\u56de\u58f0\u5ba2\u6237\u7aef\u53ef\u4ee5\u63d0\u524d\u77e5\u9053\u63a5\u6536\u6570\u636e\u7684\u957f\u5ea6&#xff0c;\u8fd9\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f\u4e0d\u53ef\u80fd\u7684\u3002<\/span>\u90a3\u4e48\u6b64\u65f6\u65e0\u6cd5\u9884\u77e5\u63a5\u6536\u6570\u636e\u957f\u5ea6\u65f6\u5e94\u8be5\u5982\u4f55\u6536\u53d1\u6570\u636e&#xff1f;\u8fd9\u65f6\u9700\u8981\u7684\u662f\u5e94\u7528\u5c42\u534f\u8bae\u7684\u5b9a\u4e49\u3002<span style=\"background-color:#f9eda6\">\u5728\u6536\u53d1\u8fc7\u7a0b\u4e2d\u5b9a\u597d\u89c4\u5219&#xff08;\u534f\u8bae&#xff09;\u4ee5\u8868\u793a\u6570\u636e\u8fb9\u754c&#xff0c;\u6216\u8005\u63d0\u524d\u544a\u77e5\u9700\u8981\u53d1\u9001\u7684\u6570\u636e\u7684\u5927\u5c0f\u3002<\/span>\u670d\u52a1\u7aef\/\u5ba2\u6237\u7aef\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u9010\u6b65\u5b9a\u4e49\u7684\u89c4\u5219\u96c6\u5408\u5c31\u662f\u5e94\u7528\u5c42\u534f\u8bae\u3002\u73b0\u5728\u5199\u4e00\u4e2a\u5c0f\u7a0b\u5e8f\u6765\u4f53\u9a8c\u5e94\u7528\u5c42\u534f\u8bae\u7684\u5b9a\u4e49\u8fc7\u7a0b\u3002\u8981\u6c42&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u4ece\u5ba2\u6237\u7aef\u83b7\u5f97\u591a\u4e2a\u6570\u7ec4\u548c\u8fd0\u7b97\u7b26\u4fe1\u606f\u3002<\/li>\n<li>\u670d\u52a1\u5668\u63a5\u6536\u5230\u6570\u5b57\u5019\u5bf9\u9f50\u8fdb\u884c\u52a0\u51cf\u4e58\u8fd0\u7b97&#xff0c;\u7136\u540e\u628a\u7ed3\u679c\u4f20\u56de\u5ba2\u6237\u7aef\u3002<\/li>\n<li>\u5411\u670d\u52a1\u5668\u4f20\u9012 3,5,9 \u7684\u540c\u4e8b\u8bf7\u6c42\u52a0\u6cd5\u8fd0\u7b97&#xff0c;\u670d\u52a1\u5668\u8fd4\u56de 3&#043;5&#043;9 \u7684\u7ed3\u679c<\/li>\n<li>\u8bf7\u6c42\u505a\u4e58\u6cd5\u8fd0\u7b97&#xff0c;\u5ba2\u6237\u7aef\u4f1a\u6536\u5230 3*5*9 \u7684\u7ed3\u679c<\/li>\n<li>\u00a0\u5982\u679c\u5411\u670d\u52a1\u5668\u4f20\u9012 4,3,2 \u7684\u540c\u65f6\u8981\u6c42\u505a\u51cf\u6cd5&#xff0c;\u5219\u8fd4\u56de 4-3-2 \u7684\u8fd0\u7b97\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<p>&#xff08;1&#xff09;\u670d\u52a1\u5668\u7aef op_server.c \u5b9e\u73b0<\/p>\n<p>int calculate(int optnum, int opts[],char op);<br \/>\nint main(int argc, char const *argv[])<br \/>\n{<br \/>\n    struct sockaddr_in serv_addr, clnt_addr;<br \/>\n    char* read_buf &#061; malloc(sizeof(char)*1024);<br \/>\n    memset(&amp;serv_addr,0,sizeof(serv_addr));<br \/>\n    memset(&amp;clnt_addr,0,sizeof(clnt_addr));<br \/>\n    if(argc !&#061; 2) {<br \/>\n        printf(&#034;Usage&#xff1a;%s &lt;port&gt;\\\\n&#034;,argv[0]);<br \/>\n        exit(1);<br \/>\n    }<br \/>\n    serv_addr.sin_family &#061; AF_INET;<br \/>\n    inet_pton(AF_INET,&#034;0.0.0.0&#034;,&amp;serv_addr.sin_addr);<br \/>\n    serv_addr.sin_port &#061; htons(atoi(argv[1]));<\/p>\n<p>    int serv_sock &#061; socket(AF_INET,SOCK_STREAM,0);<br \/>\n    handle_error(&#034;socket&#034;,serv_sock);<\/p>\n<p>    int temp&#061;bind(serv_sock,(struct sockaddr *)&amp;serv_addr,sizeof(serv_addr));<br \/>\n    handle_error(&#034;bind&#034;,temp);<\/p>\n<p>    temp&#061; listen(serv_sock,128);<br \/>\n    handle_error(&#034;listen&#034;,temp);<\/p>\n<p>    socklen_t serv_len &#061; sizeof(serv_addr);<br \/>\n    int recv_cnt;<br \/>\n    for(int i &#061; 0;i &lt; 5;i&#043;&#043;) {<br \/>\n        int opt_count &#061; 0;<br \/>\n        int clnt_sock&#061;accept(serv_sock,(struct sockaddr*)&amp;serv_addr,&amp;serv_len);<br \/>\n        handle_error(&#034;accept&#034;,clnt_sock);<br \/>\n        printf(&#034;\u4e0e\u5ba2\u6237\u7aef%s %d\u76f8\u8fde&#xff0c;\u6587\u4ef6\u63cf\u8ff0\u7b26\u662f%d\\\\n&#034;,<br \/>\n            inet_ntoa(clnt_addr.sin_addr),ntohs(clnt_addr.sin_port),clnt_sock);<br \/>\n        recv(clnt_sock,&amp;opt_count,1,0);<br \/>\n        int recv_len &#061; 0;<br \/>\n        \/\/\u56e0\u4e3aread_buf\u662fchar*&#xff0c;int\u7c7b\u578b\u4f1a\u5360\u75284\u4e2a\u5b57\u8282\u4f4d\u7f6e &#043; char\u7c7b\u578b1\u4e2a\u5b57\u8282<br \/>\n        while(recv_len &lt; opt_count * 4 &#043; 1) {<br \/>\n            recv_cnt &#061; recv(clnt_sock,&amp;read_buf[recv_len],1024,0);<br \/>\n            recv_len &#043;&#061; recv_cnt;<br \/>\n        }<br \/>\n        int result &#061; calculate(opt_count,(int *)read_buf,read_buf[recv_len-1]);<br \/>\n        printf(&#034;Operation result:%d\\\\n&#034;,result);<br \/>\n        send(clnt_sock,&amp;result,sizeof(result),0);<br \/>\n        close(clnt_sock);<br \/>\n    }<br \/>\n    close(serv_sock);<br \/>\n    free(read_buf);<br \/>\n    return 0;<br \/>\n}<\/p>\n<p>int calculate(int optnum, int opts[],char op) {<br \/>\n    int result &#061; opts[0], i;<br \/>\n    switch (op)<br \/>\n    {<br \/>\n    case &#039;&#043;&#039;:<br \/>\n        for (i &#061; 1; i &lt; optnum; i&#043;&#043;)<br \/>\n            result &#043;&#061; opts[i];<br \/>\n        break;<br \/>\n    case &#039;-&#039;:<br \/>\n        for (i &#061; 1; i &lt; optnum; i&#043;&#043;)<br \/>\n            result -&#061; opts[i];<br \/>\n        break;<br \/>\n    case &#039;*&#039;:<br \/>\n        for (i &#061; 1; i &lt; optnum; i&#043;&#043;)<br \/>\n            result *&#061; opts[i];<br \/>\n        break;<br \/>\n    }<br \/>\n    return result;<br \/>\n} <\/p>\n<p>&#xff08;2&#xff09;\u5ba2\u6237\u7aef op_client.c \u5b9e\u73b0<\/p>\n<p>#define handle_error(cmd,result)    \\\\<br \/>\n    if(result &lt; 0)                  \\\\<br \/>\n    {                               \\\\<br \/>\n        perror(cmd);                \\\\<br \/>\n        return -1;                  \\\\<br \/>\n    }                               \\\\<\/p>\n<p>int main(int argc, char const *argv[])<br \/>\n{<br \/>\n    int str_len,recv_len,recv_cnt;<br \/>\n    struct sockaddr_in serv_addr,clnt_addr;<br \/>\n    char* write_buf &#061; malloc(sizeof(char)*1024);<br \/>\n    memset(&amp;serv_addr,0,sizeof(serv_addr));<br \/>\n    memset(&amp;clnt_addr,0,sizeof(clnt_addr));<br \/>\n    if(argc !&#061; 3) {<br \/>\n        printf(&#034;Usage&#xff1a;%s &lt;IP&gt; &lt;port&gt;\\\\n&#034;,argv[0]);<br \/>\n        exit(1);<br \/>\n    }<br \/>\n    if (!write_buf) {<br \/>\n        perror(&#034;malloc server write_buf&#034;);<br \/>\n        return 1;<br \/>\n    }<br \/>\n    serv_addr.sin_family &#061; AF_INET;<br \/>\n    serv_addr.sin_port &#061; htons(atoi(argv[2]));<br \/>\n    inet_pton(AF_INET,argv[1],&amp;serv_addr.sin_addr);<\/p>\n<p>    int clnt_sock &#061; socket(AF_INET,SOCK_STREAM,0);<br \/>\n    handle_error(&#034;socket&#034;,clnt_sock);<\/p>\n<p>    int temp_result &#061; connect(clnt_sock,(struct sockaddr*)&amp;serv_addr,sizeof(serv_addr));<br \/>\n    handle_error(&#034;connect&#034;,temp_result);<br \/>\n    printf(&#034;Connected&#8230;&#8230;\\\\n&#034;);<\/p>\n<p>    int opt_count;      \/\/\u64cd\u4f5c\u6570\u7684\u6570\u91cf<br \/>\n    fputs(&#034;Operand count&#xff1a;&#034;,stdout);<br \/>\n    scanf(&#034;%d&#034;,&amp;opt_count);<br \/>\n    write_buf[0] &#061; (char)opt_count; \/\/\u5c06int\u6570\u636e\u4fdd\u5b58\u5728char\u6570\u7ec4<br \/>\n    \/\/\u8f93\u5165\u64cd\u4f5c\u6570<br \/>\n    for(int i &#061; 0;i&lt; opt_count;i&#043;&#043;) {<br \/>\n        printf(&#034;Operand%d&#xff1a;&#034;,i&#043;1);<br \/>\n        scanf(&#034;%d&#034;,(int *)&amp;write_buf[i*4&#043;1]);   \/\/4\u5b57\u8282int\u7c7b\u578b\u4fdd\u5b58\u5230char\u6570\u7ec4\u4e2d<br \/>\n    }<br \/>\n    \/\/\u5220\u6389\u7f13\u51b2\u4e2d\\\\n<br \/>\n    fgetc(stdin);<br \/>\n    \/\/\u8f93\u5165\u64cd\u4f5c\u7b26<br \/>\n    fputs(&#034;Operator:&#034;,stdout);<br \/>\n    scanf(&#034;%c&#034;,&amp;write_buf[opt_count*4&#043;1]);<br \/>\n    send(clnt_sock,write_buf,opt_count*4&#043;2,0);<br \/>\n    int result;<br \/>\n    recv(clnt_sock,&amp;result,sizeof(int),0);<br \/>\n    printf(&#034;Operation result:%d\\\\n&#034;,result);<br \/>\n    close(clnt_sock);<br \/>\n    free(write_buf);<br \/>\n    return 0;<br \/>\n} <\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"264\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418094340-68021ecc485bb.png\" width=\"536\" \/><\/p>\n<p>\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa&#xff0c;<span 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\u57fa\u4e8eTCP\u7684\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef\u51fd\u6570\u8c03\u7528\u5173\u7cfb3.4 \u5b9e\u73b0\u8fed\u4ee3\u670d\u52a1\u5668\u7aef\/\u5ba2\u6237\u7aef3.5 \u56de\u58f0\u5ba2\u6237\u7aef\u5b8c\u7f8e\u5b9e\u73b03.5.1 \u56de\u58f0\u5ba2\u6237\u7aef\u95ee\u9898\u89e3\u51b3\u65b9\u6cd53.5.2 \u5982\u679c\u95ee\u9898\u4e0d\u5728\u56de\u58f0\u5ba2\u6237\u7aef\uff1a\u5b9a\u4e49\u5e94\u7528\u5c42\u534f\u8bae<\/p>\n","protected":false},"author":2,"featured_media":9971,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,192,205,191],"topic":[],"class_list":["post-9979","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-linux","tag-tcp-ip","tag-191"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux 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