{"id":1152452,"date":"2025-01-13T17:25:51","date_gmt":"2025-01-13T09:25:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1152452.html"},"modified":"2025-01-13T17:25:54","modified_gmt":"2025-01-13T09:25:54","slug":"python%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96%e5%bd%93%e5%89%8ddns","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1152452.html","title":{"rendered":"python\u5982\u4f55\u83b7\u53d6\u5f53\u524ddns"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25182433\/44c3aea0-6bcf-4fe9-a823-0161caccc033.webp\" alt=\"python\u5982\u4f55\u83b7\u53d6\u5f53\u524ddns\" \/><\/p>\n<p><p> <strong>Python\u83b7\u53d6\u5f53\u524dDNS\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528socket\u5e93\u3001os\u5e93\u3001\u4ee5\u53ca\u7b2c\u4e09\u65b9\u5e93dnspython\u3002<\/strong><\/p>\n<\/p>\n<p><p><strong>socket\u5e93<\/strong>\uff1a\u901a\u8fc7socket\u5e93\u53ef\u4ee5\u83b7\u53d6\u9ed8\u8ba4\u7684DNS\u89e3\u6790\u5668\u5730\u5740\u3002<\/p>\n<p><strong>os\u5e93<\/strong>\uff1a\u901a\u8fc7os\u5e93\u6765\u8bfb\u53d6\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684DNS\u4fe1\u606f\u3002<\/p>\n<p><strong>dnspython\u5e93<\/strong>\uff1a\u662f\u4e00\u4e2a\u5f3a\u5927\u7684DNS\u64cd\u4f5c\u5e93\uff0c\u53ef\u4ee5\u83b7\u53d6\u8be6\u7ec6\u7684DNS\u914d\u7f6e\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e09\u79cd\u65b9\u6cd5\u7684\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528socket\u5e93<\/h3>\n<\/p>\n<p><p>socket\u5e93\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bbf\u95ee\u7f51\u7edc\u63a5\u53e3\u7684\u5de5\u5177\uff0c\u901a\u8fc7socket\u5e93\u53ef\u4ee5\u83b7\u53d6\u7cfb\u7edf\u5f53\u524d\u4f7f\u7528\u7684DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import socket<\/p>\n<p>def get_dns_from_socket():<\/p>\n<p>    result = socket.getaddrinfo(&#39;www.example.com&#39;, None)<\/p>\n<p>    dns_servers = set()<\/p>\n<p>    for res in result:<\/p>\n<p>        dns_servers.add(res[4][0])<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_socket()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>getaddrinfo<\/code>\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u6307\u5b9a\u4e3b\u673a\u7684\u76f8\u5173\u5730\u5740\u4fe1\u606f\uff0c\u6211\u4eec\u901a\u8fc7\u8fd9\u4e2a\u51fd\u6570\u6765\u89e3\u6790\u4e00\u4e2a\u57df\u540d\uff08\u4f8b\u5982\u201c<a href=\"http:\/\/www.example.com%E2%80%9D%EF%BC%89%EF%BC%8C%E7%84%B6%E5%90%8E%E6%8F%90%E5%8F%96%E5%87%BADNS%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%9C%B0%E5%9D%80%E3%80%82\">www.example.com\u201d\uff09\uff0c\u7136\u540e\u63d0\u53d6\u51faDNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/a><\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528os\u5e93<\/h3>\n<\/p>\n<p><p>\u5728Linux\u548cMac\u7cfb\u7edf\u4e2d\uff0cDNS\u914d\u7f6e\u901a\u5e38\u5b58\u50a8\u5728<code>\/etc\/resolv.conf<\/code>\u6587\u4ef6\u4e2d\uff0c\u901a\u8fc7\u8bfb\u53d6\u8fd9\u4e2a\u6587\u4ef6\u53ef\u4ee5\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>def get_dns_from_resolv_conf():<\/p>\n<p>    dns_servers = []<\/p>\n<p>    with open(&#39;\/etc\/resolv.conf&#39;, &#39;r&#39;) as f:<\/p>\n<p>        lines = f.readlines()<\/p>\n<p>        for line in lines:<\/p>\n<p>            if line.startswith(&#39;nameserver&#39;):<\/p>\n<p>                dns_servers.append(line.split()[1])<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_resolv_conf()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6253\u5f00<code>\/etc\/resolv.conf<\/code>\u6587\u4ef6\uff0c\u8bfb\u53d6\u6bcf\u4e00\u884c\u5185\u5bb9\uff0c\u5982\u679c\u884c\u4ee5<code>nameserver<\/code>\u5f00\u5934\uff0c\u5219\u63d0\u53d6\u51fa\u540e\u9762\u7684DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528dnspython\u5e93<\/h3>\n<\/p>\n<p><p>dnspython\u5e93\u662f\u4e00\u4e2a\u5f3a\u5927\u7684DNS\u64cd\u4f5c\u5e93\uff0c\u53ef\u4ee5\u5904\u7406DNS\u67e5\u8be2\u3001\u66f4\u65b0\u3001\u52a8\u6001DNS\u3001DNSSEC\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528dnspython\u5e93\u83b7\u53d6\u5f53\u524dDNS\u670d\u52a1\u5668\u5730\u5740\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import dns.resolver<\/p>\n<p>def get_dns_from_dnspython():<\/p>\n<p>    resolver = dns.resolver.Resolver()<\/p>\n<p>    dns_servers = resolver.nameservers<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_dnspython()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a<code>Resolver<\/code>\u5bf9\u8c61\uff0c\u901a\u8fc7<code>nameservers<\/code>\u5c5e\u6027\u53ef\u4ee5\u83b7\u53d6\u5f53\u524d\u4f7f\u7528\u7684DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u8de8\u5e73\u53f0\u89e3\u51b3\u65b9\u6848<\/h3>\n<\/p>\n<p><p>\u5bf9\u4e8e\u8de8\u5e73\u53f0\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u7ed3\u5408\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u540c\u9009\u62e9\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import platform<\/p>\n<p>import socket<\/p>\n<p>import os<\/p>\n<p>def get_dns():<\/p>\n<p>    dns_servers = set()<\/p>\n<p>    system = platform.system()<\/p>\n<p>    if system == &#39;Windows&#39;:<\/p>\n<p>        # \u4f7f\u7528socket\u5e93\u83b7\u53d6DNS<\/p>\n<p>        result = socket.getaddrinfo(&#39;www.example.com&#39;, None)<\/p>\n<p>        for res in result:<\/p>\n<p>            dns_servers.add(res[4][0])<\/p>\n<p>    elif system in (&#39;Linux&#39;, &#39;Darwin&#39;):<\/p>\n<p>        # \u4f7f\u7528os\u5e93\u8bfb\u53d6\/etc\/resolv.conf\u6587\u4ef6<\/p>\n<p>        with open(&#39;\/etc\/resolv.conf&#39;, &#39;r&#39;) as f:<\/p>\n<p>            lines = f.readlines()<\/p>\n<p>            for line in lines:<\/p>\n<p>                if line.startswith(&#39;nameserver&#39;):<\/p>\n<p>                    dns_servers.add(line.split()[1])<\/p>\n<p>    else:<\/p>\n<p>        r<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>se NotImplementedError(&quot;Unsupported OS&quot;)<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u83b7\u53d6\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\uff0c\u7136\u540e\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\u9009\u62e9\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u4f7f\u7528socket\u5e93\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\uff1b\u5728Linux\u548cMac\u7cfb\u7edf\u4e2d\uff0c\u4f7f\u7528os\u5e93\u8bfb\u53d6<code>\/etc\/resolv.conf<\/code>\u6587\u4ef6\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93scapy<\/h3>\n<\/p>\n<p><p>scapy\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u7f51\u7edc\u6570\u636e\u5305\u5904\u7406\u5e93\uff0c\u53ef\u4ee5\u7528\u4e8e\u89e3\u6790\u548c\u751f\u6210\u5404\u79cd\u7f51\u7edc\u534f\u8bae\u7684\u6570\u636e\u5305\u3002\u4f7f\u7528scapy\u5e93\u4e5f\u53ef\u4ee5\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from scapy.layers.dns import DNS<\/p>\n<p>from scapy.sendrecv import sr1<\/p>\n<p>from scapy.layers.inet import IP, UDP<\/p>\n<p>def get_dns_from_scapy():<\/p>\n<p>    dns_query = IP(dst=&quot;8.8.8.8&quot;) \/ UDP(dport=53) \/ DNS(rd=1, qd=DNSQR(qname=&quot;www.example.com&quot;))<\/p>\n<p>    dns_response = sr1(dns_query, verbose=False)<\/p>\n<p>    dns_servers = []<\/p>\n<p>    if dns_response and dns_response.haslayer(DNS):<\/p>\n<p>        dns_servers.append(dns_response[IP].src)<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_scapy()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u6784\u9020\u4e00\u4e2aDNS\u67e5\u8be2\u6570\u636e\u5305\uff0c\u7136\u540e\u53d1\u9001\u8fd9\u4e2a\u6570\u636e\u5305\u5e76\u7b49\u5f85\u54cd\u5e94\uff0c\u901a\u8fc7\u89e3\u6790\u54cd\u5e94\u6570\u636e\u5305\u6765\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u4f7f\u7528netifaces\u5e93<\/h3>\n<\/p>\n<p><p>netifaces\u5e93\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u7f51\u7edc\u63a5\u53e3\u64cd\u4f5c\u5e93\uff0c\u53ef\u4ee5\u83b7\u53d6\u7cfb\u7edf\u7f51\u7edc\u63a5\u53e3\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u5305\u62ecDNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import netifaces<\/p>\n<p>def get_dns_from_netifaces():<\/p>\n<p>    dns_servers = netifaces.gateways().get(&#39;default&#39;, {}).get(netifaces.AF_INET, [None])[0]<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_netifaces()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7netifaces\u5e93\u83b7\u53d6\u7cfb\u7edf\u9ed8\u8ba4\u7f51\u5173\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u5176\u4e2d\u5305\u62ecDNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><h3>\u4e03\u3001\u4f7f\u7528subprocess\u5e93<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7subprocess\u5e93\u53ef\u4ee5\u8fd0\u884c\u7cfb\u7edf\u547d\u4ee4\uff0c\u5e76\u83b7\u53d6\u547d\u4ee4\u8f93\u51fa\uff0c\u4ece\u800c\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import subprocess<\/p>\n<p>def get_dns_from_subprocess():<\/p>\n<p>    result = subprocess.run([&#39;nslookup&#39;, &#39;-type=ns&#39;, &#39;www.example.com&#39;], capture_output=True, text=True)<\/p>\n<p>    output = result.stdout<\/p>\n<p>    dns_servers = []<\/p>\n<p>    for line in output.splitlines():<\/p>\n<p>        if &#39;Server:&#39; in line or &#39;Address:&#39; in line:<\/p>\n<p>            dns_servers.append(line.split(&#39;:&#39;)[1].strip())<\/p>\n<p>    return dns_servers<\/p>\n<p>dns_servers = get_dns_from_subprocess()<\/p>\n<p>print(&quot;Current DNS servers:&quot;, dns_servers)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u8fd0\u884c<code>nslookup<\/code>\u547d\u4ee4\u6765\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\uff0c\u5e76\u89e3\u6790\u547d\u4ee4\u8f93\u51fa\u3002<\/p>\n<\/p>\n<p><h3>\u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u4ee5\u4e0a\u4ecb\u7ecd\u4e86\u591a\u79cd\u5728Python\u4e2d\u83b7\u53d6\u5f53\u524dDNS\u670d\u52a1\u5668\u5730\u5740\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528socket\u5e93\u3001os\u5e93\u3001dnspython\u5e93\u3001scapy\u5e93\u3001netifaces\u5e93\u548csubprocess\u5e93\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528socket\u5e93<\/strong>\uff1a\u9002\u7528\u4e8e\u7b80\u5355\u573a\u666f\uff0c\u53ef\u4ee5\u83b7\u53d6\u9ed8\u8ba4\u7684DNS\u89e3\u6790\u5668\u5730\u5740\u3002<\/p>\n<p><strong>\u4f7f\u7528os\u5e93<\/strong>\uff1a\u9002\u7528\u4e8eLinux\u548cMac\u7cfb\u7edf\uff0c\u901a\u8fc7\u8bfb\u53d6\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<p><strong>\u4f7f\u7528dnspython\u5e93<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u590d\u6742DNS\u64cd\u4f5c\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u83b7\u53d6\u8be6\u7ec6\u7684DNS\u914d\u7f6e\u60c5\u51b5\u3002<\/p>\n<p><strong>\u4f7f\u7528scapy\u5e93<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u901a\u8fc7\u89e3\u6790DNS\u54cd\u5e94\u6570\u636e\u5305\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<p><strong>\u4f7f\u7528netifaces\u5e93<\/strong>\uff1a\u9002\u7528\u4e8e\u8de8\u5e73\u53f0\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u83b7\u53d6\u7cfb\u7edf\u7f51\u7edc\u63a5\u53e3\u7684\u914d\u7f6e\u4fe1\u606f\u3002<\/p>\n<p><strong>\u4f7f\u7528subprocess\u5e93<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u8fd0\u884c\u7cfb\u7edf\u547d\u4ee4\u7684\u573a\u666f\uff0c\u901a\u8fc7\u89e3\u6790\u547d\u4ee4\u8f93\u51fa\u83b7\u53d6DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u7ed3\u5408\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u548c\u4e0d\u540c\u9700\u6c42\u573a\u666f\u4e0b\u83b7\u53d6\u5f53\u524dDNS\u670d\u52a1\u5668\u5730\u5740\uff0c\u6ee1\u8db3\u591a\u6837\u5316\u7684\u9700\u6c42\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u5f53\u524d\u4f7f\u7528\u7684DNS\u670d\u52a1\u5668\u5730\u5740\uff1f<\/strong><br \/>\u8981\u83b7\u53d6\u5f53\u524d\u4f7f\u7528\u7684DNS\u670d\u52a1\u5668\u5730\u5740\uff0c\u53ef\u4ee5\u4f7f\u7528socket\u5e93\u4e2d\u7684getaddrinfo\u51fd\u6570\u3002\u901a\u8fc7\u8c03\u7528\u8be5\u51fd\u6570\u5e76\u4f20\u5165\u7279\u5b9a\u7684\u57df\u540d\uff0c\u53ef\u4ee5\u83b7\u53d6\u5230\u76f8\u5173\u7684DNS\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-python\">import socket\n\ndef get_dns_servers():\n    dns_info = socket.getaddrinfo(&#39;google.com&#39;, None)\n    dns_servers = [item[4][0] for item in dns_info]\n    return dns_servers\n\nprint(get_dns_servers())\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u4ee3\u7801\u4f1a\u8fd4\u56de\u4e0egoogle.com\u76f8\u5173\u7684DNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u68c0\u67e5DNS\u89e3\u6790\u662f\u5426\u6b63\u5e38\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528socket\u5e93\u4e2d\u7684gethostbyname\u51fd\u6570\u6765\u68c0\u67e5DNS\u89e3\u6790\u662f\u5426\u6b63\u5e38\u3002\u901a\u8fc7\u5c1d\u8bd5\u89e3\u6790\u4e00\u4e2a\u5df2\u77e5\u7684\u57df\u540d\uff0c\u5982\u679c\u6ca1\u6709\u629b\u51fa\u5f02\u5e38\uff0c\u5219\u8bf4\u660eDNS\u89e3\u6790\u6b63\u5e38\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-python\">import socket\n\ndef check_dns_resolution(domain):\n    try:\n        ip_address = socket.gethostbyname(domain)\n        return f&quot;{domain} resolves to {ip_address}&quot;\n    except socket.error as e:\n        return f&quot;Error resolving {domain}: {e}&quot;\n\nprint(check_dns_resolution(&#39;google.com&#39;))\n<\/code><\/pre>\n<p>\u8fd0\u884c\u540e\u5c06\u663e\u793a\u57df\u540d\u89e3\u6790\u7684\u7ed3\u679c\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u7cfb\u7edf\u7684DNS\u914d\u7f6e\u6587\u4ef6\uff1f<\/strong><br \/>\u5728\u8bb8\u591a\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0cDNS\u914d\u7f6e\u6587\u4ef6\u901a\u5e38\u5b58\u50a8\u5728\u7279\u5b9a\u7684\u4f4d\u7f6e\u3002Linux\u7cfb\u7edf\u7684DNS\u914d\u7f6e\u6587\u4ef6\u901a\u5e38\u4e3a<code>\/etc\/resolv.conf<\/code>\u3002\u53ef\u4ee5\u4f7f\u7528Python\u4e2d\u7684\u6587\u4ef6\u64cd\u4f5c\u529f\u80fd\u8bfb\u53d6\u6b64\u6587\u4ef6\u5185\u5bb9\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">def get_dns_config():\n    with open(&#39;\/etc\/resolv.conf&#39;, &#39;r&#39;) as file:\n        return file.readlines()\n\ndns_config = get_dns_config()\nfor line in dns_config:\n    print(line.strip())\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u4ee3\u7801\u5c06\u6253\u5370\u51fa\u5f53\u524dDNS\u914d\u7f6e\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u65b9\u4fbf\u8fdb\u884c\u67e5\u770b\u548c\u5206\u6790\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u83b7\u53d6\u5f53\u524dDNS\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528socket\u5e93\u3001os\u5e93\u3001\u4ee5\u53ca\u7b2c\u4e09\u65b9\u5e93dnspython\u3002 socket [&hellip;]","protected":false},"author":3,"featured_media":1152461,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1152452"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1152452"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1152452\/revisions"}],"predecessor-version":[{"id":1152464,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1152452\/revisions\/1152464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1152461"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1152452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1152452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1152452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}