{"id":208396,"date":"2025-09-06T09:34:11","date_gmt":"2025-09-06T01:34:11","guid":{"rendered":"https:\/\/www.server.hk\/blog\/?p=208396"},"modified":"2025-09-06T09:34:11","modified_gmt":"2025-09-06T01:34:11","slug":"linux%e5%86%85%e6%a0%b8bind%e5%87%bd%e6%95%b0%e5%9c%a8%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8%ef%bc%9a%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208396\/","title":{"rendered":"Linux\u5185\u6838bind\u51fd\u6570\u5728\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u5e94\u7528\uff1a\u6df1\u5ea6\u89e3\u6790"},"content":{"rendered":"

\u5728Linux\u5185\u6838\u7f51\u7edc\u534f\u8bae\u6808\u4e2d\uff0cbind<\/code>\u51fd\u6570\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\uff0c\u7528\u4e8e\u5c06\u5957\u63a5\u5b57\u4e0e\u7279\u5b9a\u7684\u672c\u5730\u5730\u5740\u548c\u7aef\u53e3\u7ed1\u5b9a\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8bind<\/code>\u51fd\u6570\u5728\u5e94\u7528\u5c42\u3001BSD\u5957\u63a5\u5b57\u5c42\u548cINET\u5957\u63a5\u5b57\u5c42\u7684\u5b9e\u73b0\u673a\u5236\uff0c\u4e3a\u5f00\u53d1\u8005\u548c\u7cfb\u7edf\u7ba1\u7406\u5458\u63d0\u4f9b\u8be6\u5c3d\u7684\u6280\u672f\u5206\u6790\u3002\u901a\u8fc7\u638c\u63e1bind<\/code>\u51fd\u6570\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u60a8\u53ef\u4ee5\u4f18\u5316\u670d\u52a1\u5668\u7aef\u5957\u63a5\u5b57\u914d\u7f6e\uff0c\u6784\u5efa\u9ad8\u6548\u7684\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

bind<\/code>\u51fd\u6570\u7b80\u4ecb<\/h2>\n

bind<\/code>\u51fd\u6570\u7528\u4e8e\u4e3a\u5957\u63a5\u5b57\u5206\u914d\u672c\u5730\u5730\u5740\u548c\u7aef\u53e3\uff0c\u662f\u670d\u52a1\u5668\u7aef\u5e94\u7528\u7a0b\u5e8f\u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5b83\u786e\u4fdd\u5957\u63a5\u5b57\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\uff0c\u4ee5\u4fbf\u7cfb\u7edf\u80fd\u591f\u6b63\u786e\u8def\u7531\u4f20\u5165\u7684\u6570\u636e\u5305\u3002bind<\/code>\u51fd\u6570\u8d2f\u7a7fLinux\u5185\u6838\u7f51\u7edc\u534f\u8bae\u6808\u7684\u591a\u4e2a\u5c42\u7ea7\uff0c\u6bcf\u4e2a\u5c42\u7ea7\u627f\u62c5\u4e0d\u540c\u7684\u804c\u8d23\u3002<\/p>\n

bind<\/code>\u51fd\u6570\u7684\u8bed\u6cd5<\/h3>\n

\u5728\u5e94\u7528\u5c42\uff0cbind<\/code>\u51fd\u6570\u7684\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n

#include <sys\/socket.h>\r\nint bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);\r\n<\/code><\/pre>\n
    \n
  • sockfd<\/strong>\uff1a\u7531socket<\/code>\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u3002<\/li>\n
  • addr<\/strong>\uff1a\u6307\u5411\u7279\u5b9a\u534f\u8bae\u7684\u5730\u5740\u7ed3\u6784\u6307\u9488\uff08\u4f8b\u5982\uff0cIPv4\u4f7f\u7528sockaddr_in<\/code>\uff09\u3002<\/li>\n
  • addrlen<\/strong>\uff1a\u5730\u5740\u7ed3\u6784\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n
    \u51fd\u6570\u6210\u529f\u65f6\u8fd4\u56de0<\/code>\uff0c\u5931\u8d25\u65f6\u8fd4\u56de\u8d1f\u503c\u7684\u9519\u8bef\u7801\uff08\u5982-EINVAL<\/code>\u3001-EADDRINUSE<\/code>\uff09\u3002<\/p>\n
    Linux\u5185\u6838\u4e2dbind<\/code>\u51fd\u6570\u7684\u5c42\u7ea7\u7ed3\u6784<\/h2>\n
    bind<\/code>\u51fd\u6570\u8de8\u8d8aLinux\u5185\u6838\u7f51\u7edc\u534f\u8bae\u6808\u7684\u4e09\u4e2a\u5c42\u7ea7\uff1a\u5e94\u7528\u5c42\u3001BSD\u5957\u63a5\u5b57\u5c42\u548cINET\u5957\u63a5\u5b57\u5c42\u3002\u6bcf\u4e2a\u5c42\u7ea7\u5728\u5730\u5740\u7ed1\u5b9a\u8fc7\u7a0b\u4e2d\u5404\u53f8\u5176\u804c\uff0c\u786e\u4fdd\u64cd\u4f5c\u9ad8\u6548\u4e14\u5b89\u5168\u3002<\/p>\n
    1. \u5e94\u7528\u5c42\uff1a\u542f\u52a8\u5730\u5740\u7ed1\u5b9a<\/h3>\n
    \u5728\u5e94\u7528\u5c42\uff0cbind<\/code>\u51fd\u6570\u662f\u5f00\u53d1\u8005\u7ed1\u5b9a\u5957\u63a5\u5b57\u5230\u672c\u5730\u5730\u5740\u7684\u5165\u53e3\u3002\u4f8b\u5982\uff0cWeb\u670d\u52a1\u5668\u53ef\u80fd\u5c06\u5957\u63a5\u5b57\u7ed1\u5b9a\u52300.0.0.0:80<\/code>\u4ee5\u76d1\u542c\u6240\u6709\u63a5\u53e3\u7684HTTP\u6d41\u91cf\u3002\u5e94\u7528\u5c42\u5c06\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u548c\u5730\u5740\u4fe1\u606f\u4f20\u9012\u7ed9\u5185\u6838\uff0c\u7531\u5185\u6838\u7684\u8f83\u4f4e\u5c42\u5b8c\u6210\u9a8c\u8bc1\u548c\u7ed1\u5b9a\u64cd\u4f5c\u3002<\/p>\n
    2. BSD\u5957\u63a5\u5b57\u5c42\uff1a\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u7684\u6865\u6881<\/h3>\n
    BSD\u5957\u63a5\u5b57\u5c42\u8d1f\u8d23\u5c06\u7528\u6237\u7a7a\u95f4\u7684\u5730\u5740\u6570\u636e\u5b89\u5168\u4f20\u9012\u5230\u5185\u6838\u7a7a\u95f4\uff0c\u4e3b\u8981\u901a\u8fc7sock_bind<\/code>\u51fd\u6570\u5b9e\u73b0\u3002sock_bind<\/code>\u51fd\u6570\u7684\u4e3b\u8981\u4efb\u52a1\u5305\u62ec\uff1a<\/p>\n
      \n
    • \u8f93\u5165\u9a8c\u8bc1<\/strong>\uff1a\u68c0\u67e5\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\uff08sockfd<\/code>\uff09\u662f\u5426\u6709\u6548\uff0c\u662f\u5426\u5bf9\u5e94\u4e00\u4e2a\u5b58\u5728\u7684\u5957\u63a5\u5b57\u3002\u82e5\u65e0\u6548\uff0c\u8fd4\u56de\u9519\u8bef\u7801\u5982-EBADF<\/code>\u6216-ENOTSOCK<\/code>\u3002<\/li>\n
    • \u5730\u5740\u590d\u5236<\/strong>\uff1a\u901a\u8fc7move_addr_to_kernel<\/code>\u51fd\u6570\u5c06\u7528\u6237\u7a7a\u95f4\u7684\u5730\u5740\u7ed3\u6784\u590d\u5236\u5230\u5185\u6838\u7a7a\u95f4\u3002<\/li>\n
    • \u4efb\u52a1\u5206\u6d3e<\/strong>\uff1a\u8c03\u7528\u7279\u5b9a\u534f\u8bae\u7684bind<\/code>\u51fd\u6570\uff08\u5982TCP\/IP\u534f\u8bae\u7684inet_bind<\/code>\uff09\u5b8c\u6210\u7ed1\u5b9a\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0b\u662fsock_bind<\/code>\u51fd\u6570\u7684\u7b80\u5316\u4ee3\u7801\uff1a<\/p>\n
      static int sock_bind(int fd, struct sockaddr *user_addr, int addr_len) {\r\n    struct socket *sock;\r\n    char kernel_addr[MAX_SOCK_ADDR];\r\n    int err;\r\n\r\n    \/\/ \u9a8c\u8bc1\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\r\n    if (fd < 0 || fd >= NR_OPEN || !current->files->fd[fd])\r\n        return -EBADF;\r\n\r\n    \/\/ \u83b7\u53d6\u5957\u63a5\u5b57\u7ed3\u6784\r\n    sock = sockfd_lookup(fd, NULL);\r\n    if (!sock)\r\n        return -ENOTSOCK;\r\n\r\n    \/\/ \u5c06\u5730\u5740\u4ece\u7528\u6237\u7a7a\u95f4\u590d\u5236\u5230\u5185\u6838\u7a7a\u95f4\r\n    err = move_addr_to_kernel(user_addr, addr_len, kernel_addr);\r\n    if (err < 0)\r\n        return err;\r\n\r\n    \/\/ \u8c03\u7528\u534f\u8bae\u7279\u5b9a\u7684bind\u51fd\u6570\r\n    return sock->ops->bind(sock, (struct sockaddr *)kernel_addr, addr_len);\r\n}\r\n<\/code><\/pre>\n
      move_addr_to_kernel<\/code>\u51fd\u6570\u786e\u4fdd\u5730\u5740\u6570\u636e\u7684\u5b89\u5168\u590d\u5236\uff1a<\/p>\n
      static int move_addr_to_kernel(void *user_addr, int user_len, void *kernel_addr) {\r\n    if (user_len < 0 || user_len > MAX_SOCK_ADDR)\r\n        return -EINVAL;\r\n    if (user_len == 0)\r\n        return 0;\r\n    if (verify_area(VERIFY_READ, user_addr, user_len) < 0)\r\n        return -EFAULT;\r\n    memcpy_fromfs(kernel_addr, user_addr, user_len);\r\n    return 0;\r\n}\r\n<\/code><\/pre>\n
      BSD\u5957\u63a5\u5b57\u5c42\u786e\u4fdd\u5730\u5740\u6570\u636e\u5728\u4f20\u9012\u5230\u534f\u8bae\u5c42\u4e4b\u524d\u5f97\u5230\u9a8c\u8bc1\u548c\u5b89\u5168\u5904\u7406\u3002<\/p>\n
      3. INET\u5957\u63a5\u5b57\u5c42\uff1a\u5b9e\u73b0IP\u548c\u7aef\u53e3\u7ed1\u5b9a<\/h3>\n
      INET\u5957\u63a5\u5b57\u5c42\u7684inet_bind<\/code>\u51fd\u6570\u8d1f\u8d23\u5b9e\u9645\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u7ed1\u5b9a\uff0c\u5904\u7406TCP\/IP\u534f\u8bae\u7684\u7279\u5b9a\u903b\u8f91\u3002\u5176\u4e3b\u8981\u4efb\u52a1\u5305\u62ec\uff1a<\/p>\n
        \n
      • \u5957\u63a5\u5b57\u72b6\u6001\u68c0\u67e5<\/strong>\uff1a\u786e\u4fdd\u5957\u63a5\u5b57\u5904\u4e8eTCP_CLOSE<\/code>\u72b6\u6001\uff0c\u6d3b\u8dc3\u8fde\u63a5\u65e0\u6cd5\u7ed1\u5b9a\uff08\u8fd4\u56de-EIO<\/code>\uff09\u3002<\/li>\n
      • \u5730\u5740\u957f\u5ea6\u9a8c\u8bc1<\/strong>\uff1a\u68c0\u67e5\u5730\u5740\u7ed3\u6784\u957f\u5ea6\u662f\u5426\u7b26\u5408\u9884\u671f\uff08\u5982IPv4\u7684sockaddr_in<\/code>\u5927\u5c0f\uff09\u3002<\/li>\n
      • \u7aef\u53e3\u5206\u914d<\/strong>\uff1a\n
          \n
        • \u5bf9\u4e8e\u975e\u539f\u59cb\u5957\u63a5\u5b57\uff0c\u82e5\u672a\u6307\u5b9a\u7aef\u53e3\uff08sin_port == 0<\/code>\uff09\uff0c\u7cfb\u7edf\u901a\u8fc7get_new_socknum<\/code>\u5206\u914d\u65b0\u7aef\u53e3\u3002<\/li>\n
        • \u4f4e\u4e8e1024\u7684\u7aef\u53e3\u9700\u8981\u8d85\u7ea7\u7528\u6237\u6743\u9650\uff08\u5426\u5219\u8fd4\u56de-EACCES<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
        • IP\u5730\u5740\u9a8c\u8bc1<\/strong>\uff1a\n
            \n
          • \u4f7f\u7528ip_chk_addr<\/code>\u68c0\u67e5\u6307\u5b9aIP\u662f\u5426\u4e3a\u672c\u5730\u63a5\u53e3\u6216\u591a\u64ad\u5730\u5740\u3002<\/li>\n
          • \u82e5\u672a\u6307\u5b9aIP\uff08sin_addr.s_addr == 0<\/code>\uff09\uff0c\u7cfb\u7edf\u5206\u914d\u672c\u5730\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \u51b2\u7a81\u68c0\u6d4b<\/strong>\uff1a\u901a\u8fc7\u94fe\u5f0f\u54c8\u5e0c\u8868sock_array<\/code>\u68c0\u67e5\u7aef\u53e3\u51b2\u7a81\u3002\u82e5\u7aef\u53e3\u5df2\u88ab\u5360\u7528\u4e14\u672a\u542f\u7528\u5730\u5740\u590d\u7528\uff0c\u5219\u8fd4\u56de-EADDRINUSE<\/code>\u3002<\/li>\n<\/ul>\n
            \u4ee5\u4e0b\u662finet_bind<\/code>\u51fd\u6570\u7684\u7b80\u5316\u4ee3\u7801\uff1a<\/p>\n
            static int inet_bind(struct socket *sock, struct sockaddr *addr, int addr_len) {\r\n    struct sockaddr_in *addr_in = (struct sockaddr_in *)addr;\r\n    struct sock *sk = (struct sock *)sock->data;\r\n    unsigned short port = ntohs(addr_in->sin_port);\r\n    int chk_addr_ret;\r\n\r\n    \/\/ \u9a8c\u8bc1\u5957\u63a5\u5b57\u72b6\u6001\r\n    if (sk->state != TCP_CLOSE)\r\n        return -EIO;\r\n\r\n    \/\/ \u9a8c\u8bc1\u5730\u5740\u957f\u5ea6\r\n    if (addr_len < sizeof(struct sockaddr_in))\r\n        return -EINVAL;\r\n\r\n    \/\/ \u5904\u7406\u975e\u539f\u59cb\u5957\u63a5\u5b57\u7684\u7aef\u53e3\u5206\u914d\r\n    if (sock->type != SOCK_RAW) {\r\n        if (sk->num != 0)\r\n            return -EINVAL;\r\n        if (port == 0)\r\n            port = get_new_socknum(sk->prot, 0);\r\n        if (port < PROT_SOCK && !suser())\r\n            return -EACCES;\r\n    }\r\n\r\n    \/\/ \u9a8c\u8bc1IP\u5730\u5740\r\n    chk_addr_ret = ip_chk_addr(addr_in->sin_addr.s_addr);\r\n    if (addr_in->sin_addr.s_addr != 0 && chk_addr_ret != IS_MYADDR && chk_addr_ret != IS_MULTICAST)\r\n        return -EADDRNOTAVAIL;\r\n\r\n    \/\/ \u5206\u914d\u672c\u5730\u5730\u5740\r\n    sk->saddr = addr_in->sin_addr.s_addr;\r\n\r\n    \/\/ \u68c0\u67e5\u7aef\u53e3\u51b2\u7a81\r\n    if (sock->type != SOCK_RAW) {\r\n        struct sock *sk2;\r\n        for (sk2 = sk->prot->sock_array[port & (SOCK_ARRAY_SIZE - 1)]; sk2; sk2 = sk2->next) {\r\n            if (sk2->num != port)\r\n                continue;\r\n            if (!sk->reuse || sk2->state == TCP_LISTEN)\r\n                return -EADDRINUSE;\r\n        }\r\n        remove_sock(sk);\r\n        put_sock(port, sk);\r\n        sk->dummy_th.source = ntohs(port);\r\n    }\r\n\r\n    return 0;\r\n}\r\n<\/code><\/pre>\n
            sock_array<\/code>\u662f\u4e00\u4e2a\u94fe\u5f0f\u54c8\u5e0c\u8868\uff0c\u6309\u7aef\u53e3\u53f7\u5b58\u50a8\u5957\u63a5\u5b57\u7ed3\u6784\uff0c\u5141\u8bb8\u9ad8\u6548\u7684\u51b2\u7a81\u68c0\u6d4b\u3002\u7531\u4e8e\u54c8\u5e0c\u8868\u5927\u5c0f\u5c0f\u4e8e\u7aef\u53e3\u603b\u6570\uff0c\u51b2\u7a81\u901a\u8fc7\u94fe\u8868\u89e3\u51b3\u3002<\/p>\n
            bind<\/code>\u51fd\u6570\u7684\u5178\u578b\u5e94\u7528\u573a\u666f<\/h2>\n
            bind<\/code>\u51fd\u6570\u4e3b\u8981\u7528\u4e8e\u670d\u52a1\u5668\u7aef\u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ec\uff1a<\/p>\n
              \n
            • Web\u670d\u52a1\u5668<\/strong>\uff1a\u7ed1\u5b9a\u52300.0.0.0:80<\/code>\uff08HTTP\uff09\u62160.0.0.0:443<\/code>\uff08HTTPS\uff09\u3002<\/li>\n
            • \u6570\u636e\u5e93\u670d\u52a1\u5668<\/strong>\uff1a\u7ed1\u5b9a\u5230\u7279\u5b9a\u7aef\u53e3\uff0c\u5982MySQL\u76843306<\/code>\u3002<\/li>\n
            • \u81ea\u5b9a\u4e49\u534f\u8bae<\/strong>\uff1a\u4e3a\u4e13\u6709\u7f51\u7edc\u670d\u52a1\u7ed1\u5b9a\u4efb\u610f\u7aef\u53e3\u3002<\/li>\n<\/ul>\n
              \u5ba2\u6237\u7aef\u901a\u5e38\u7531\u7cfb\u7edf\u5206\u914d\u4e34\u65f6\u7aef\u53e3\uff0c\u56e0\u6b64\u8f83\u5c11\u4f7f\u7528bind<\/code>\u51fd\u6570\u3002<\/p>\n
              \u4f7f\u7528bind<\/code>\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5<\/h2>\n
              \u4e3a\u786e\u4fdd\u5957\u63a5\u5b57\u7ed1\u5b9a\u7684\u53ef\u9760\u6027\u4e0e\u5b89\u5168\u6027\uff0c\u5efa\u8bae\u9075\u5faa\u4ee5\u4e0b\u5b9e\u8df5\uff1a<\/p>\n
                \n
              1. \u9a8c\u8bc1\u5957\u63a5\u5b57\u72b6\u6001<\/strong>\uff1a\u7ed1\u5b9a\u524d\u786e\u4fdd\u5957\u63a5\u5b57\u5904\u4e8eTCP_CLOSE<\/code>\u72b6\u6001\u3002<\/li>\n
              2. \u4f18\u96c5\u5904\u7406\u9519\u8bef<\/strong>\uff1a\u68c0\u67e5\u5e38\u89c1\u9519\u8bef\u7801\u5982-EADDRINUSE<\/code>\uff0c\u5e76\u63d0\u4f9b\u6e05\u6670\u7684\u53cd\u9988\u3002<\/li>\n
              3. \u542f\u7528\u5730\u5740\u590d\u7528<\/strong>\uff1a\u8bbe\u7f6eSO_REUSEADDR<\/code>\u9009\u9879\uff0c\u4ee5\u5141\u8bb8\u91cd\u65b0\u7ed1\u5b9a\u6700\u8fd1\u5173\u95ed\u7684\u7aef\u53e3\u3002<\/li>\n
              4. \u4fdd\u62a4\u7279\u6743\u7aef\u53e3<\/strong>\uff1a\u4f4e\u4e8e1024\u7684\u7aef\u53e3\u9700\u8d85\u7ea7\u7528\u6237\u6743\u9650\uff0c\u786e\u4fdd\u8fdb\u7a0b\u6709\u8db3\u591f\u6743\u9650\u3002<\/li>\n
              5. \u660e\u786e\u6307\u5b9a\u672c\u5730\u5730\u5740<\/strong>\uff1a\u82e5\u670d\u52a1\u65e0\u9700\u5916\u90e8\u8bbf\u95ee\uff0c\u7ed1\u5b9a\u5230\u672c\u5730\u63a5\u53e3\uff08\u5982127.0.0.1<\/code>\uff09\u4ee5\u63d0\u5347\u5b89\u5168\u6027\u3002<\/li>\n<\/ol>\n
                \u9519\u8bef\u7801\u4e0e\u6545\u969c\u6392\u67e5<\/h2>\n
                bind<\/code>\u51fd\u6570\u53ef\u80fd\u8fd4\u56de\u4ee5\u4e0b\u9519\u8bef\u7801\uff0c\u8868\u683c\u603b\u7ed3\u4e86\u5e38\u89c1\u9519\u8bef\u53ca\u5176\u539f\u56e0\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n
                \u9519\u8bef\u7801<\/th>\n\u63cf\u8ff0<\/th>\n\u53ef\u80fd\u539f\u56e0<\/th>\n<\/tr>\n<\/thead>\n
                -EBADF<\/code><\/td>\n\u65e0\u6548\u7684\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26<\/td>\nsockfd<\/code>\u4e0d\u6b63\u786e\u6216\u5df2\u5173\u95ed<\/td>\n<\/tr>\n
                -ENOTSOCK<\/code><\/td>\n\u63cf\u8ff0\u7b26\u4e0d\u662f\u5957\u63a5\u5b57<\/td>\nsockfd<\/code>\u4e0d\u6307\u5411\u6709\u6548\u5957\u63a5\u5b57<\/td>\n<\/tr>\n
                -EINVAL<\/code><\/td>\n\u5730\u5740\u957f\u5ea6\u65e0\u6548\u6216\u7aef\u53e3\u5df2\u7ed1\u5b9a<\/td>\naddrlen<\/code>\u9519\u8bef\u6216\u7aef\u53e3\u5df2\u88ab\u5360\u7528<\/td>\n<\/tr>\n
                -EADDRINUSE<\/code><\/td>\n\u5730\u5740\u5df2\u88ab\u4f7f\u7528<\/td>\n\u7aef\u53e3\u51b2\u7a81\u4e14\u672a\u542f\u7528SO_REUSEADDR<\/code><\/td>\n<\/tr>\n
                -EACCES<\/code><\/td>\n\u6743\u9650\u4e0d\u8db3<\/td>\n\u975e\u7279\u6743\u7528\u6237\u5c1d\u8bd5\u7ed1\u5b9a\u4f4e\u4e8e1024\u7684\u7aef\u53e3<\/td>\n<\/tr>\n
                -EADDRNOTAVAIL<\/code><\/td>\n\u5730\u5740\u4e0d\u53ef\u7528<\/td>\n\u6307\u5b9a\u7684IP\u4e0d\u662f\u672c\u5730\u63a5\u53e3\u6216\u591a\u64ad\u5730\u5740<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                \u6545\u969c\u6392\u67e5\u65f6\uff0c\u53ef\u4f7f\u7528netstat<\/code>\u6216ss<\/code>\u5de5\u5177\u68c0\u67e5\u7aef\u53e3\u5360\u7528\u60c5\u51b5\uff0c\u9a8c\u8bc1\u5957\u63a5\u5b57\u72b6\u6001\uff0c\u5e76\u786e\u4fdd\u8fdb\u7a0b\u6743\u9650\u3002<\/p>\n
                \u7ed3\u8bba<\/h2>\n
                bind<\/code>\u51fd\u6570\u662fLinux\u5185\u6838\u7f51\u7edc\u534f\u8bae\u6808\u7684\u5173\u952e\u7ec4\u4ef6\uff0c\u4f7f\u670d\u52a1\u5668\u80fd\u591f\u5c06\u5957\u63a5\u5b57\u4e0e\u7279\u5b9aIP\u5730\u5740\u548c\u7aef\u53e3\u7ed1\u5b9a\u3002\u901a\u8fc7\u7406\u89e3\u5176\u5728\u5e94\u7528\u5c42\u3001BSD\u5957\u63a5\u5b57\u5c42\u548cINET\u5957\u63a5\u5b57\u5c42\u7684\u5b9e\u73b0\u673a\u5236\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6784\u5efa\u9ad8\u6548\u4e14\u5b89\u5168\u7684\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u3002\u5408\u7406\u7684\u9519\u8bef\u5904\u7406\u3001\u5730\u5740\u9a8c\u8bc1\u548c\u6700\u4f73\u5b9e\u8df5\u7684\u5e94\u7528\u80fd\u591f\u786e\u4fdd\u53ef\u9760\u7684\u5957\u63a5\u5b57\u7ed1\u5b9a\uff0c\u4e3a\u7f51\u7edc\u901a\u4fe1\u5960\u5b9a\u575a\u5b9e\u57fa\u7840\u3002<\/p>\n
                \u5efa\u8bae\u8fdb\u4e00\u6b65\u63a2\u7d22Linux\u5185\u6838\u6e90\u7801\u6216\u901a\u8fc7\u5957\u63a5\u5b57\u7f16\u7a0b\u5b9e\u8df5\u6df1\u5165\u4e86\u89e3bind<\/code>\u51fd\u6570\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u5728Linux\u5185\u6838\u7f51\u7edc\u534f\u8bae\u6808\u4e2d\uff0cb...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-208396","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=208396"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208396\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}