{"id":824,"date":"2024-09-09T10:23:41","date_gmt":"2024-09-09T02:23:41","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=824"},"modified":"2026-07-27T11:23:06","modified_gmt":"2026-07-27T03:23:06","slug":"%e6%b5%b7%e5%a4%96vps%e7%9a%84ip%e8%a2%ab%e5%a2%99%e4%ba%86%e6%80%8e%e4%b9%88%e5%8a%9e%ef%bc%9f%e6%95%99%e4%bd%a0%e6%a3%80%e6%b5%8bip%e6%98%af%e4%b8%8d%e6%98%af%e8%a2%ab%e5%a2%99%e4%ba%86","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/824\/","title":{"rendered":"IP\u88ab\u5899\u600e\u4e48\u529e\uff1fVPS\u68c0\u6d4b\u3001\u6392\u67e5\u4e0e\u6062\u590d\u6b65\u9aa4"},"content":{"rendered":"<p>\u641c\u7d22\u201cIP \u88ab\u5899\u600e\u4e48\u529e\u201d\u65f6\uff0c\u6700\u5bb9\u6613\u72af\u7684\u9519\u8bef\u662f\u53ea\u505a\u4e00\u6b21<br \/>\nPing\uff0c\u5c31\u76f4\u63a5\u5224\u65ad\u5fc5\u987b\u6362 IP\u3002<strong>Ping \u4e0d\u901a\u53ea\u80fd\u8bf4\u660e ICMP<br \/>\n\u6ca1\u6709\u5f97\u5230\u54cd\u5e94\uff0c\u4e0d\u80fd\u5355\u72ec\u8bc1\u660e IP \u88ab\u5c01\u9501\u3002<\/strong><br \/>\n\u6b63\u786e\u505a\u6cd5\u662f\u5148\u6392\u9664\u670d\u52a1\u5668\u5b95\u673a\u3001\u5b89\u5168\u7ec4\u3001\u7cfb\u7edf\u9632\u706b\u5899\u3001DNS\u3001\u7aef\u53e3\u76d1\u542c\u548c\u7ebf\u8def\u6545\u969c\uff0c\u518d\u7528\u591a\u4e2a\u5730\u533a\u3001\u591a\u4e2a\u534f\u8bae\u7684\u7ed3\u679c\u5224\u65ad\u662f\u5426\u5b58\u5728\u660e\u663e\u7684\u5730\u57df\u6027\u4e0d\u53ef\u8fbe\u3002<\/p>\n<p>\u5982\u679c\u4e1a\u52a1\u6b63\u5728\u4e2d\u65ad\uff0c\u5148\u4e0d\u8981\u91cd\u88c5\u7cfb\u7edf\u6216\u53cd\u590d\u4fee\u6539\u7f51\u7edc\u3002\u4fdd\u5b58\u5f53\u524d\u914d\u7f6e\u548c\u68c0\u6d4b\u7ed3\u679c\uff0c\u6309\u7167\u672c\u6587\u7684\u987a\u5e8f\u6392\u67e5\uff0c\u624d\u80fd\u907f\u514d\u628a\u666e\u901a\u6545\u969c\u8bef\u5224\u4e3a\u201c\u88ab\u5899\u201d\u3002<\/p>\n<h2 id=\"\u5148\u7528-1-\u5206\u949f\u5224\u65ad\u95ee\u9898\u5c5e\u4e8e\u54ea\u4e00\u5c42\">\u5148\u7528 1<br \/>\n\u5206\u949f\u5224\u65ad\u95ee\u9898\u5c5e\u4e8e\u54ea\u4e00\u5c42<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u73b0\u8c61<\/th>\n<th>\u66f4\u53ef\u80fd\u7684\u95ee\u9898<\/th>\n<th>\u4e0b\u4e00\u6b65<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6240\u6709\u5730\u533a\u90fd\u65e0\u6cd5\u8bbf\u95ee<\/td>\n<td>\u670d\u52a1\u5668\u5b95\u673a\u3001\u5b89\u5168\u7ec4\u3001\u9632\u706b\u5899\u3001\u670d\u52a1\u672a\u76d1\u542c<\/td>\n<td>\u5148\u68c0\u67e5\u63a7\u5236\u53f0\u548c\u672c\u673a\u670d\u52a1<\/td>\n<\/tr>\n<tr>\n<td>\u57df\u540d\u4e0d\u80fd\u8bbf\u95ee\uff0c\u76f4\u63a5\u8bbf\u95ee IP \u6b63\u5e38<\/td>\n<td>DNS\u3001DNSSEC\u3001\u89e3\u6790\u8bb0\u5f55\u6216\u7f13\u5b58<\/td>\n<td>\u68c0\u67e5 <code>dig<\/code> \/ <code>nslookup<\/code><\/td>\n<\/tr>\n<tr>\n<td>Ping \u4e0d\u901a\uff0c\u4f46\u7f51\u7ad9\u548c SSH \u6b63\u5e38<\/td>\n<td>ICMP \u88ab\u7981\u7528\u6216\u9650\u901f<\/td>\n<td>\u4e0d\u9700\u8981\u4ec5\u56e0 Ping \u66f4\u6362 IP<\/td>\n<\/tr>\n<tr>\n<td>\u53ea\u6709 80\/443 \u4e0d\u901a<\/td>\n<td>Web \u670d\u52a1\u3001\u5b89\u5168\u7ec4\u3001\u8bc1\u4e66\u6216\u53cd\u5411\u4ee3\u7406<\/td>\n<td>\u68c0\u67e5\u7aef\u53e3\u4e0e Web \u65e5\u5fd7<\/td>\n<\/tr>\n<tr>\n<td>\u5883\u5916\u8282\u70b9\u6b63\u5e38\uff0c\u591a\u4e2a\u5883\u5185\u7f51\u7edc\u6301\u7eed\u5931\u8d25<\/td>\n<td>\u8de8\u5883\u8def\u7531\u6216\u5730\u57df\u6027\u8fc7\u6ee4\u7684\u53ef\u80fd\u6027\u8f83\u9ad8<\/td>\n<td>\u505a\u591a\u5730 TCP \u4e0e\u8def\u7531\u5bf9\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>\u53ea\u6709\u67d0\u4e2a\u8fd0\u8425\u5546\u5931\u8d25<\/td>\n<td>\u8fd0\u8425\u5546\u4e92\u8054\u6216\u5c40\u90e8\u8def\u7531\u6545\u969c<\/td>\n<td>\u4fdd\u5b58 MTR \u5e76\u8054\u7cfb\u670d\u52a1\u5546<\/td>\n<\/tr>\n<tr>\n<td>IP \u6b63\u5e38\uff0c\u53ea\u6709\u67d0\u4e2a\u8d26\u53f7\u6216\u5e73\u53f0\u5931\u8d25<\/td>\n<td>\u5e73\u53f0\u98ce\u63a7\u3001\u8d26\u53f7\u6216\u73af\u5883\u95ee\u9898<\/td>\n<td>\u4e0d\u8981\u76f4\u63a5\u5f52\u56e0\u4e8e IP \u88ab\u5899<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"ip-\u88ab\u5899\u901a\u5e38\u4f1a\u51fa\u73b0\u4ec0\u4e48\u73b0\u8c61\">IP \u88ab\u5899\u901a\u5e38\u4f1a\u51fa\u73b0\u4ec0\u4e48\u73b0\u8c61<\/h2>\n<p>\u7528\u6237\u53e3\u4e2d\u7684\u201cIP \u88ab\u5899\u201d\uff0c\u4e00\u822c\u6307\u67d0\u4e2a\u516c\u7f51 IP<br \/>\n\u4ece\u4e2d\u56fd\u5883\u5185\u591a\u4e2a\u7f51\u7edc\u6301\u7eed\u65e0\u6cd5\u5efa\u7acb\u8fde\u63a5\uff0c\u800c\u5883\u5916\u7f51\u7edc\u4ecd\u53ef\u6b63\u5e38\u8bbf\u95ee\u3002\u5e38\u89c1\u8868\u73b0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5883\u5185\u591a\u4e2a\u8fd0\u8425\u5546\u8bbf\u95ee\u540c\u4e00 IP \u8d85\u65f6\uff1b<\/li>\n<li>\u5883\u5916\u76d1\u6d4b\u8282\u70b9\u8bbf\u95ee\u7f51\u7ad9\u6216\u7aef\u53e3\u6b63\u5e38\uff1b<\/li>\n<li>\u670d\u52a1\u5668\u672c\u8eab\u8fd0\u884c\u6b63\u5e38\uff0c\u51fa\u7ad9\u8bbf\u95ee\u4e5f\u6b63\u5e38\uff1b<\/li>\n<li>\u66f4\u6362\u540c\u670d\u52a1\u5668\u7684\u516c\u7f51 IP \u540e\u8fde\u63a5\u6062\u590d\uff1b<\/li>\n<li>\u57df\u540d\u89e3\u6790\u5230\u53e6\u4e00\u4e2a\u5065\u5eb7 IP \u540e\u8bbf\u95ee\u6062\u590d\uff1b<\/li>\n<li>\u95ee\u9898\u6301\u7eed\u5b58\u5728\uff0c\u800c\u4e0d\u662f\u51e0\u5206\u949f\u7684\u4e34\u65f6\u4e22\u5305\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u73b0\u8c61\u7ec4\u5408\u51fa\u73b0\u65f6\uff0c\u5224\u65ad\u624d\u66f4\u6709\u628a\u63e1\u3002\u4e00\u6b21\u5931\u8d25\u3001\u5355\u4e2a\u8fd0\u8425\u5546\u5931\u8d25\u6216\u5355\u4e00\u5de5\u5177\u5931\u8d25\uff0c\u90fd\u4e0d\u8db3\u4ee5\u4f5c\u7ed3\u8bba\u3002<\/p>\n<h2 id=\"\u6392\u67e5\u524d\u5148\u4fdd\u5b58\u8bc1\u636e\">\u6392\u67e5\u524d\u5148\u4fdd\u5b58\u8bc1\u636e<\/h2>\n<p>\u5efa\u8bae\u5efa\u7acb\u4e00\u4efd\u6545\u969c\u8bb0\u5f55\uff0c\u81f3\u5c11\u5305\u542b\uff1a<\/p>\n<ul>\n<li>\u51fa\u95ee\u9898\u7684\u57df\u540d\u3001IP\u3001\u7aef\u53e3\u548c\u534f\u8bae\uff1b<\/li>\n<li>\u9996\u6b21\u53d1\u751f\u65f6\u95f4\u548c\u65f6\u533a\uff1b<\/li>\n<li>\u670d\u52a1\u5668\u5730\u57df\u3001\u670d\u52a1\u5546\u548c\u5b9e\u4f8b ID\uff1b<\/li>\n<li>\u5883\u5185\u3001\u5883\u5916\u5404\u4e24\u4e2a\u4ee5\u4e0a\u6d4b\u8bd5\u70b9\u7684\u7ed3\u679c\uff1b<\/li>\n<li>DNS \u89e3\u6790\u7ed3\u679c\uff1b<\/li>\n<li><code>curl<\/code>\u3001\u7aef\u53e3\u6d4b\u8bd5\u548c <code>traceroute<\/code> \/<br \/>\n<code>mtr<\/code> \u8f93\u51fa\uff1b<\/li>\n<li>\u5b89\u5168\u7ec4\u3001\u9632\u706b\u5899\u548c\u670d\u52a1\u76d1\u542c\u622a\u56fe\uff1b<\/li>\n<li>\u6700\u8fd1 24 \u5c0f\u65f6\u662f\u5426\u6539\u8fc7 DNS\u3001\u8bc1\u4e66\u3001\u7f51\u7edc\u6216\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4efd\u8bb0\u5f55\u65e2\u80fd\u5e2e\u52a9\u81ea\u5df1\u5224\u65ad\uff0c\u4e5f\u80fd\u8ba9\u670d\u52a1\u5546\u66f4\u5feb\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n<h2 id=\"\u7b2c\u4e00\u6b65\u786e\u8ba4\u670d\u52a1\u5668\u6ca1\u6709\u5b95\u673a\">\u7b2c\u4e00\u6b65\uff1a\u786e\u8ba4\u670d\u52a1\u5668\u6ca1\u6709\u5b95\u673a<\/h2>\n<p>\u5148\u5728\u4e91\u5e73\u53f0\u63a7\u5236\u53f0\u68c0\u67e5\u5b9e\u4f8b\u72b6\u6001\u3001CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u548c\u7f51\u7edc\u76d1\u63a7\u3002\u5982\u679c SSH<br \/>\n\u8fde\u63a5\u4e0d\u4e0a\uff0c\u4f7f\u7528\u670d\u52a1\u5546\u63d0\u4f9b\u7684 VNC\u3001\u4e32\u53e3\u6216\u6551\u63f4\u6a21\u5f0f\u767b\u5f55\u3002<\/p>\n<p>Linux \u4e2d\u53ef\u4ee5\u68c0\u67e5\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb1\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb1-1\"><a href=\"#cb1-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">uptime<\/span><\/span>\n<span id=\"cb1-2\"><a href=\"#cb1-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">free<\/span> <span class=\"at\">-h<\/span><\/span>\n<span id=\"cb1-3\"><a href=\"#cb1-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">df<\/span> <span class=\"at\">-h<\/span><\/span>\n<span id=\"cb1-4\"><a href=\"#cb1-4\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">ip<\/span> addr<\/span>\n<span id=\"cb1-5\"><a href=\"#cb1-5\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">ip<\/span> route<\/span><\/code><\/pre>\n<\/div>\n<p>\u5982\u679c\u78c1\u76d8\u5df2\u6ee1\u3001\u5185\u5b58\u8017\u5c3d\u3001\u9ed8\u8ba4\u8def\u7531\u4e22\u5931\u6216\u7f51\u5361\u6ca1\u6709\u5730\u5740\uff0c\u5e94\u5148\u89e3\u51b3\u670d\u52a1\u5668\u672c\u8eab\u95ee\u9898\u3002<\/p>\n<h2 id=\"\u7b2c\u4e8c\u6b65\u786e\u8ba4\u670d\u52a1\u786e\u5b9e\u5728\u76d1\u542c\">\u7b2c\u4e8c\u6b65\uff1a\u786e\u8ba4\u670d\u52a1\u786e\u5b9e\u5728\u76d1\u542c<\/h2>\n<p>\u7f51\u7ad9\u6253\u4e0d\u5f00\u4e0d\u4ee3\u8868 IP \u4e0d\u901a\u3002\u68c0\u67e5\u5e94\u7528\u662f\u5426\u76d1\u542c\u5728\u6b63\u786e\u7aef\u53e3\u548c\u516c\u7f51\u7f51\u5361\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb2\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb2-1\"><a href=\"#cb2-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> ss <span class=\"at\">-lntup<\/span><\/span>\n<span id=\"cb2-2\"><a href=\"#cb2-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> systemctl status nginx<\/span>\n<span id=\"cb2-3\"><a href=\"#cb2-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> systemctl status apache2<\/span><\/code><\/pre>\n<\/div>\n<p>\u5982\u679c\u670d\u52a1\u53ea\u76d1\u542c <code>127.0.0.1<\/code>\uff0c\u5916\u90e8\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\uff1b\u5982\u679c<br \/>\nNginx\u3001Apache \u6216\u5e94\u7528\u8fdb\u7a0b\u5df2\u7ecf\u505c\u6b62\uff0c\u6362 IP \u4e5f\u4e0d\u4f1a\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n<h2\nid=\"\u7b2c\u4e09\u6b65\u68c0\u67e5\u5b89\u5168\u7ec4\u548c\u7cfb\u7edf\u9632\u706b\u5899\">\u7b2c\u4e09\u6b65\uff1a\u68c0\u67e5\u5b89\u5168\u7ec4\u548c\u7cfb\u7edf\u9632\u706b\u5899<\/h2>\n<p>\u540c\u65f6\u68c0\u67e5\u4e91\u5e73\u53f0\u5b89\u5168\u7ec4\u4e0e\u670d\u52a1\u5668\u5185\u90e8\u9632\u706b\u5899\u3002\u5e38\u89c1\u95ee\u9898\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u53ea\u5141\u8bb8\u4e86\u65e7\u529e\u516c IP\uff1b<\/li>\n<li>\u53ea\u5f00\u653e IPv6\uff0c\u6ca1\u6709\u5f00\u653e IPv4\uff1b<\/li>\n<li>\u7aef\u53e3\u8303\u56f4\u6216\u534f\u8bae\u9009\u9519\uff1b<\/li>\n<li>\u9632\u706b\u5899\u66f4\u65b0\u540e\u9ed8\u8ba4\u7b56\u7565\u53d8\u4e3a\u62d2\u7edd\uff1b<\/li>\n<li>Fail2Ban \u6216\u5b89\u5168\u8f6f\u4ef6\u8bef\u5c01\u4e86\u6d4b\u8bd5\u6765\u6e90\uff1b<\/li>\n<li>Web \u670d\u52a1\u5b9e\u9645\u4f7f\u7528 8443\uff0c\u4f46\u5b89\u5168\u7ec4\u53ea\u5f00\u4e86 443\u3002<\/li>\n<\/ul>\n<p>Linux \u4e2d\u53ef\u6309\u5b9e\u9645\u7cfb\u7edf\u68c0\u67e5\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb3\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb3-1\"><a href=\"#cb3-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> ufw status verbose<\/span>\n<span id=\"cb3-2\"><a href=\"#cb3-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> firewall-cmd <span class=\"at\">--list-all<\/span><\/span>\n<span id=\"cb3-3\"><a href=\"#cb3-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> nft list ruleset<\/span><\/code><\/pre>\n<\/div>\n<p>\u4e0d\u8981\u4e3a\u4e86\u6d4b\u8bd5\u76f4\u63a5\u6c38\u4e45\u5173\u95ed\u6240\u6709\u9632\u706b\u5899\u3002\u4f18\u5148\u6dfb\u52a0\u4e00\u6761\u8303\u56f4\u660e\u786e\u3001\u53ef\u56de\u6eda\u7684\u4e34\u65f6\u89c4\u5219\u3002<\/p>\n<h2 id=\"\u7b2c\u56db\u6b65\u628a-dns-\u95ee\u9898\u548c-ip-\u95ee\u9898\u5206\u5f00\">\u7b2c\u56db\u6b65\uff1a\u628a DNS \u95ee\u9898\u548c IP<br \/>\n\u95ee\u9898\u5206\u5f00<\/h2>\n<p>\u5206\u522b\u6d4b\u8bd5\u57df\u540d\u4e0e IP\u3002Linux \u6216 macOS \u53ef\u4ee5\u6267\u884c\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb4\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb4-1\"><a href=\"#cb4-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">dig<\/span> +short example.com A<\/span>\n<span id=\"cb4-2\"><a href=\"#cb4-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">dig<\/span> +short example.com AAAA<\/span>\n<span id=\"cb4-3\"><a href=\"#cb4-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">curl<\/span> <span class=\"at\">-I<\/span> <span class=\"at\">--connect-timeout<\/span> 10 https:\/\/example.com<\/span>\n<span id=\"cb4-4\"><a href=\"#cb4-4\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">curl<\/span> <span class=\"at\">-I<\/span> <span class=\"at\">--connect-timeout<\/span> 10 <span class=\"at\">--resolve<\/span> example.com:443:203.0.113.10 https:\/\/example.com<\/span><\/code><\/pre>\n<\/div>\n<p>Windows \u53ef\u7528\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb5\">\n<pre\nclass=\"sourceCode powershell\"><code class=\"sourceCode powershell\"><span id=\"cb5-1\"><a href=\"#cb5-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a>nslookup example<span class=\"op\">.<\/span><span class=\"fu\">com<\/span><\/span>\n<span id=\"cb5-2\"><a href=\"#cb5-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a>Test-NetConnection example<span class=\"op\">.<\/span><span class=\"fu\">com<\/span> <span class=\"op\">-<\/span>Port <span class=\"dv\">443<\/span><\/span>\n<span id=\"cb5-3\"><a href=\"#cb5-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"dt\">Test<\/span><span class=\"op\">-<\/span>NetConnection <span class=\"dv\">203.0<\/span><span class=\"op\">.<\/span><span class=\"dv\">113.10<\/span> <span class=\"op\">-<\/span>Port <span class=\"dv\">443<\/span><\/span><\/code><\/pre>\n<\/div>\n<p><code>--resolve<\/code> \u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u516c\u5171 DNS \u7684\u60c5\u51b5\u4e0b\uff0c\u8ba9<br \/>\n<code>curl<\/code> \u4f7f\u7528\u6307\u5b9a IP\uff0c\u540c\u65f6\u4fdd\u7559\u6b63\u786e\u7684\u57df\u540d\u548c TLS SNI\u3002\u82e5\u6307\u5b9a IP<br \/>\n\u6b63\u5e38\u800c\u516c\u5171\u89e3\u6790\u5931\u8d25\uff0c\u5e94\u4f18\u5148\u4fee\u590d DNS\uff1b\u82e5\u57df\u540d\u548c IP<br \/>\n\u90fd\u5931\u8d25\uff0c\u518d\u7ee7\u7eed\u68c0\u67e5\u7f51\u7edc\u3002<\/p>\n<p>Google Public DNS \u7684\u6545\u969c\u6392\u67e5\u6587\u6863\u4e5f\u5efa\u8bae\u6bd4\u8f83\u591a\u4e2a\u516c\u5171\u89e3\u6790\u5668\uff0c\u5e76\u533a\u5206 DNS<br \/>\n\u89e3\u6790\u3001\u6743\u5a01\u670d\u52a1\u5668\u548c\u7f51\u7edc\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n<h2 id=\"\u7b2c\u4e94\u6b65\u4e0d\u8981\u53ea\u6d4b-ping\u8981\u6d4b\u4e1a\u52a1\u7aef\u53e3\">\u7b2c\u4e94\u6b65\uff1a\u4e0d\u8981\u53ea\u6d4b<br \/>\nPing\uff0c\u8981\u6d4b\u4e1a\u52a1\u7aef\u53e3<\/h2>\n<p>Ping \u4f7f\u7528 ICMP\uff0c\u5f88\u591a\u673a\u623f\u3001\u7cfb\u7edf\u548c\u5b89\u5168\u8bbe\u5907\u4f1a\u9650\u5236 ICMP\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd TCP<br \/>\n\u4e1a\u52a1\u3002<\/p>\n<p>\u6d4b\u8bd5 SSH \u548c HTTPS\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb6\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb6-1\"><a href=\"#cb6-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">nc<\/span> <span class=\"at\">-vz<\/span> <span class=\"at\">-w<\/span> 5 203.0.113.10 22<\/span>\n<span id=\"cb6-2\"><a href=\"#cb6-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">nc<\/span> <span class=\"at\">-vz<\/span> <span class=\"at\">-w<\/span> 5 203.0.113.10 443<\/span>\n<span id=\"cb6-3\"><a href=\"#cb6-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">curl<\/span> <span class=\"at\">-v<\/span> <span class=\"at\">--connect-timeout<\/span> 10 https:\/\/example.com\/<\/span><\/code><\/pre>\n<\/div>\n<p>Windows\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb7\">\n<pre\nclass=\"sourceCode powershell\"><code class=\"sourceCode powershell\"><span id=\"cb7-1\"><a href=\"#cb7-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a>Test-NetConnection <span class=\"dv\">203.0<\/span><span class=\"op\">.<\/span><span class=\"dv\">113.10<\/span> <span class=\"op\">-<\/span>Port <span class=\"dv\">22<\/span><\/span>\n<span id=\"cb7-2\"><a href=\"#cb7-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"dt\">Test<\/span><span class=\"op\">-<\/span>NetConnection <span class=\"dv\">203.0<\/span><span class=\"op\">.<\/span><span class=\"dv\">113.10<\/span> <span class=\"op\">-<\/span>Port <span class=\"dv\">443<\/span><\/span><\/code><\/pre>\n<\/div>\n<p>\u91cd\u70b9\u8bb0\u5f55\u662f DNS \u5931\u8d25\u3001TCP \u8d85\u65f6\u3001TCP \u88ab\u62d2\u7edd\u3001TLS \u63e1\u624b\u5931\u8d25\uff0c\u8fd8\u662f\u5e94\u7528\u8fd4\u56de<br \/>\n4xx\/5xx\u3002\u8fd9\u4e94\u7c7b\u9519\u8bef\u7684\u5904\u7406\u8def\u5f84\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n<h2\nid=\"\u7b2c\u516d\u6b65\u4f7f\u7528\u591a\u5730\u533a\u591a\u4e2a\u8fd0\u8425\u5546\u6d4b\u8bd5\">\u7b2c\u516d\u6b65\uff1a\u4f7f\u7528\u591a\u5730\u533a\u3001\u591a\u4e2a\u8fd0\u8425\u5546\u6d4b\u8bd5<\/h2>\n<p>\u81f3\u5c11\u9009\u62e9\uff1a<\/p>\n<ul>\n<li>\u4e2d\u56fd\u5883\u5185\u7535\u4fe1\u3001\u8054\u901a\u3001\u79fb\u52a8\u4e2d\u7684\u4e24\u4e2a\u6216\u4e09\u4e2a\u7f51\u7edc\uff1b<\/li>\n<li>\u670d\u52a1\u5668\u6240\u5728\u5730\u533a\u9644\u8fd1\u7684\u4e00\u4e2a\u5883\u5916\u8282\u70b9\uff1b<\/li>\n<li>\u53e6\u4e00\u4e2a\u4e0d\u540c\u5730\u533a\u7684\u5883\u5916\u8282\u70b9\uff1b<\/li>\n<li>HTTP\/HTTPS \u548c\u5b9e\u9645\u4e1a\u52a1\u7aef\u53e3\uff1b<\/li>\n<li>IPv4 \u4e0e IPv6\uff08\u5982\u679c\u4e1a\u52a1\u540c\u65f6\u542f\u7528\uff09\u3002<\/li>\n<\/ul>\n<figure>\n  <img decoding=\"async\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2023\/11\/16620637e89a01f-1024x929.png\" alt=\"\u4f7f\u7528\u591a\u5730\u533a\u8282\u70b9\u5bf9\u6bd4\u670d\u52a1\u5668 IP \u53ef\u8fbe\u6027\" loading=\"lazy\" width=\"800\"><figcaption>\u591a\u5730\u533a\u7ed3\u679c\u8981\u6309\u8fd0\u8425\u5546\u548c\u534f\u8bae\u5206\u522b\u8bb0\u5f55\uff0c\u4e0d\u80fd\u53ea\u770b\u4e00\u5f20\u201c\u5168\u7403 Ping\u201d\u622a\u56fe\u3002<\/figcaption><\/figure>\n<p>\u5982\u679c\u5883\u5916\u591a\u4e2a\u8282\u70b9\u6b63\u5e38\uff0c\u800c\u5883\u5185\u591a\u4e2a\u8fd0\u8425\u5546\u7684 TCP<br \/>\n\u8fde\u63a5\u5728\u8f83\u957f\u65f6\u95f4\u5185\u90fd\u5931\u8d25\uff0c\u5730\u57df\u6027\u4e0d\u53ef\u8fbe\u7684\u53ef\u80fd\u6027\u624d\u4f1a\u660e\u663e\u63d0\u9ad8\u3002<\/p>\n<h2 id=\"\u7b2c\u4e03\u6b65\u6bd4\u8f83\u53bb\u7a0b\u548c\u56de\u7a0b\u8def\u7531\">\u7b2c\u4e03\u6b65\uff1a\u6bd4\u8f83\u53bb\u7a0b\u548c\u56de\u7a0b\u8def\u7531<\/h2>\n<p>\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u662f\u53bb\u7a0b\uff0c\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u662f\u56de\u7a0b\uff0c\u4e24\u6761\u8def\u5f84\u53ef\u80fd\u4e0d\u540c\u3002\u53ea\u770b\u4e00\u4fa7<br \/>\n<code>traceroute<\/code> \u5bb9\u6613\u8bef\u5224\u3002<\/p>\n<p>\u5ba2\u6237\u7aef\u4fa7\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb8\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb8-1\"><a href=\"#cb8-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">traceroute<\/span> <span class=\"at\">-n<\/span> 203.0.113.10<\/span>\n<span id=\"cb8-2\"><a href=\"#cb8-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">mtr<\/span> <span class=\"at\">-rwzc<\/span> 50 203.0.113.10<\/span><\/code><\/pre>\n<\/div>\n<p>\u670d\u52a1\u5668\u4fa7\u5e94\u5bf9\u4e00\u4e2a\u6709\u6388\u6743\u7684\u6d4b\u8bd5\u5730\u5740\u505a\u53cd\u5411\u6d4b\u8bd5\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb9\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb9-1\"><a href=\"#cb9-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"ex\">mtr<\/span> <span class=\"at\">-rwzc<\/span> 50 <span class=\"op\">&lt;<\/span>\u6d4b\u8bd5\u5ba2\u6237\u7aefIP<span class=\"op\">&gt;<\/span><\/span><\/code><\/pre>\n<\/div>\n<p>\u4e2d\u95f4\u67d0\u4e00\u8df3\u4e0d\u56de\u590d\u5e76\u4e0d\u7b49\u4e8e\u4ece\u90a3\u91cc\u5f00\u59cb\u88ab\u963b\u65ad\u3002\u8def\u7531\u5668\u53ef\u80fd\u964d\u4f4e ICMP<br \/>\n\u4f18\u5148\u7ea7\uff0c\u4f46\u4ecd\u6b63\u5e38\u8f6c\u53d1\u540e\u7eed\u6d41\u91cf\u3002\u5e94\u5173\u6ce8\u6700\u540e\u662f\u5426\u80fd\u5230\u8fbe\u3001\u4ece\u54ea\u4e00\u6bb5\u5f00\u59cb\u6240\u6709\u540e\u7eed\u8282\u70b9\u90fd\u6301\u7eed\u4e22\u5931\uff0c\u4ee5\u53ca\u591a\u4e2a\u6d4b\u8bd5\u70b9\u662f\u5426\u51fa\u73b0\u76f8\u540c\u6a21\u5f0f\u3002<\/p>\n<h2 id=\"\u600e\u4e48\u7efc\u5408\u5224\u65ad\u662f\u5426\u771f\u7684\u88ab\u5899\">\u600e\u4e48\u7efc\u5408\u5224\u65ad\u662f\u5426\u771f\u7684\u201c\u88ab\u5899\u201d<\/h2>\n<p>\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u8bc1\u636e\u77e9\u9635\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8bc1\u636e<\/th>\n<th>\u652f\u6301\u201c\u5730\u57df\u6027\u4e0d\u53ef\u8fbe\u201d<\/th>\n<th>\u4e0d\u8db3\u4ee5\u5355\u72ec\u8bc1\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5883\u5916 TCP \u7aef\u53e3\u6b63\u5e38<\/td>\n<td>\u662f<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>\u5883\u5185\u591a\u4e2a\u8fd0\u8425\u5546 TCP \u6301\u7eed\u8d85\u65f6<\/td>\n<td>\u662f<\/td>\n<td>\u5355\u4e00\u8fd0\u8425\u5546\u8d85\u65f6<\/td>\n<\/tr>\n<tr>\n<td>\u670d\u52a1\u5668\u63a7\u5236\u53f0\u548c\u670d\u52a1\u76d1\u542c\u6b63\u5e38<\/td>\n<td>\u662f<\/td>\n<td>\u53ea\u770b\u5b9e\u4f8b\u201c\u8fd0\u884c\u4e2d\u201d<\/td>\n<\/tr>\n<tr>\n<td>\u6362 IP \u540e\u76f8\u540c\u914d\u7f6e\u7acb\u5373\u6062\u590d<\/td>\n<td>\u8f83\u5f3a\u8bc1\u636e<\/td>\n<td>\u66f4\u6362\u7cfb\u7edf\u3001\u914d\u7f6e\u540e\u6062\u590d<\/td>\n<\/tr>\n<tr>\n<td>Ping \u4e0d\u901a<\/td>\n<td>\u2014<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>Traceroute \u4e2d\u95f4\u51fa\u73b0\u661f\u53f7<\/td>\n<td>\u2014<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>\u67d0\u4e2a\u7b2c\u4e09\u65b9\u68c0\u6d4b\u7ad9\u6807\u7ea2<\/td>\n<td>\u2014<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>\u57df\u540d\u89e3\u6790\u5931\u8d25<\/td>\n<td>\u66f4\u50cf DNS \u95ee\u9898<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"\u786e\u8ba4-ip-\u4e0d\u53ef\u8fbe\u540e\u600e\u4e48\u529e\">\u786e\u8ba4 IP \u4e0d\u53ef\u8fbe\u540e\u600e\u4e48\u529e<\/h2>\n<h3 id=\"\u65b9\u6848\u4e00\u8054\u7cfb\u670d\u52a1\u5546\u66f4\u6362\u516c\u7f51-ip\">\u65b9\u6848\u4e00\uff1a\u8054\u7cfb\u670d\u52a1\u5546\u66f4\u6362\u516c\u7f51 IP<\/h3>\n<p>\u8fd9\u662f\u975e Web<br \/>\n\u670d\u52a1\u548c\u9700\u8981\u76f4\u63a5\u8fde\u63a5\u670d\u52a1\u5668\u65f6\u6700\u5e38\u89c1\u7684\u6062\u590d\u65b9\u5f0f\u3002\u63d0\u4ea4\u5de5\u5355\u65f6\u63d0\u4f9b\uff1a<\/p>\n<ul>\n<li>\u539f IP \u548c\u76ee\u6807\u7aef\u53e3\uff1b<\/li>\n<li>\u5883\u5185\u5916\u5bf9\u6bd4\u7ed3\u679c\uff1b<\/li>\n<li>\u6545\u969c\u5f00\u59cb\u65f6\u95f4\uff1b<\/li>\n<li>\u5b89\u5168\u7ec4\u548c\u76d1\u542c\u72b6\u6001\uff1b<\/li>\n<li>MTR \u6216 Traceroute\uff1b<\/li>\n<li>\u662f\u5426\u63a5\u53d7\u4ed8\u8d39\u6362 IP\u3002<\/li>\n<\/ul>\n<p>\u66f4\u6362\u524d\u786e\u8ba4\u65b0 IP \u7684\u8d39\u7528\u3001\u6b21\u6570\u9650\u5236\u3001\u5730\u5740\u6bb5\u548c\u9000\u6b3e\u89c4\u5219\u3002\u66f4\u6362\u540e\u8981\u540c\u6b65\u4fee\u6539<br \/>\nDNS\u3001\u767d\u540d\u5355\u3001\u8bc1\u4e66\u9a8c\u8bc1\u3001\u76d1\u63a7\u548c\u7b2c\u4e09\u65b9\u56de\u8c03\u914d\u7f6e\u3002<\/p>\n<h3 id=\"\u65b9\u6848\u4e8cweb-\u4e1a\u52a1\u4f7f\u7528-cdn-\u6216\u53cd\u5411\u4ee3\u7406\">\u65b9\u6848\u4e8c\uff1aWeb \u4e1a\u52a1\u4f7f\u7528 CDN<br \/>\n\u6216\u53cd\u5411\u4ee3\u7406<\/h3>\n<p>\u5982\u679c\u4e1a\u52a1\u662f HTTP\/HTTPS \u7f51\u7ad9\uff0c\u53ef\u4ee5\u8ba9\u652f\u6301\u4ee3\u7406\u7684 CDN<br \/>\n\u8282\u70b9\u63a5\u6536\u8bbf\u95ee\uff0c\u518d\u56de\u6e90\u5230\u670d\u52a1\u5668\u3002Cloudflare<br \/>\n\u7684\u5b98\u65b9\u8bf4\u660e\u6307\u51fa\uff0c\u542f\u7528\u4ee3\u7406\u540e\uff0c\u8bbf\u95ee\u8005\u83b7\u5f97\u7684\u662f Cloudflare<br \/>\n\u7f51\u7edc\u5730\u5740\uff0c\u800c\u4e0d\u662f\u6e90\u7ad9\u5b9e\u9645 IP\u3002<\/p>\n<p>CDN \u4e0d\u662f\u6240\u6709\u670d\u52a1\u7684\u901a\u7528\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ul>\n<li>\u666e\u901a CDN \u901a\u5e38\u4e0d\u80fd\u4ee3\u7406 SSH\u3001\u8fdc\u7a0b\u684c\u9762\u6216\u4efb\u610f TCP \u7aef\u53e3\uff1b<\/li>\n<li>\u6e90\u7ad9\u4ecd\u8981\u5141\u8bb8 CDN \u8282\u70b9\u6b63\u5e38\u56de\u6e90\uff1b<\/li>\n<li>\u5e94\u9650\u5236\u6e90\u7ad9\u53ea\u63a5\u53d7\u53ef\u4fe1\u4ee3\u7406\u6765\u6e90\uff0c\u907f\u514d\u771f\u5b9e IP \u7ee7\u7eed\u66b4\u9732\uff1b<\/li>\n<li>\u5e94\u6b63\u786e\u6062\u590d\u8bbf\u5ba2\u771f\u5b9e IP\uff0c\u907f\u514d\u65e5\u5fd7\u3001\u9650\u901f\u548c\u98ce\u63a7\u5931\u6548\uff1b<\/li>\n<li>\u8bc1\u4e66\u3001\u7f13\u5b58\u548c WebSocket \u9700\u8981\u5355\u72ec\u68c0\u67e5\u3002<\/li>\n<\/ul>\n<h3 id=\"\u65b9\u6848\u4e09\u5207\u6362\u5907\u7528\u8282\u70b9\">\u65b9\u6848\u4e09\uff1a\u5207\u6362\u5907\u7528\u8282\u70b9<\/h3>\n<p>\u5173\u952e\u4e1a\u52a1\u5e94\u63d0\u524d\u51c6\u5907\u53e6\u4e00\u4e2a\u5730\u57df\u6216\u670d\u52a1\u5546\u7684\u5907\u7528\u8282\u70b9\uff0c\u5e76\u5b8c\u6210\uff1a<\/p>\n<ul>\n<li>\u6570\u636e\u540c\u6b65\uff1b<\/li>\n<li>\u5065\u5eb7\u68c0\u67e5\uff1b<\/li>\n<li>DNS \u4f4e TTL\uff1b<\/li>\n<li>\u81ea\u52a8\u6216\u624b\u5de5\u5207\u6362\u6d41\u7a0b\uff1b<\/li>\n<li>\u8bc1\u4e66\u548c\u5bc6\u94a5\u540c\u6b65\uff1b<\/li>\n<li>\u56de\u6eda\u6b65\u9aa4\uff1b<\/li>\n<li>\u5207\u6362\u6f14\u7ec3\u3002<\/li>\n<\/ul>\n<p>\u6ca1\u6709\u63d0\u524d\u51c6\u5907\u7684\u201c\u591a\u8282\u70b9\u201d\u53ea\u662f\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u4e0d\u662f\u53ef\u7528\u7684\u5bb9\u707e\u65b9\u6848\u3002<\/p>\n<h3 id=\"\u65b9\u6848\u56db\u4fee\u590d\u771f\u6b63\u7684\u6839\u56e0\">\u65b9\u6848\u56db\uff1a\u4fee\u590d\u771f\u6b63\u7684\u6839\u56e0<\/h3>\n<p>\u5982\u679c\u8c03\u67e5\u53d1\u73b0\u662f\u670d\u52a1\u5668\u88ab\u5165\u4fb5\u3001\u5bf9\u5916\u653b\u51fb\u3001\u5f00\u653e\u4ee3\u7406\u3001\u5f02\u5e38\u722c\u866b\u6216\u914d\u7f6e\u9519\u8bef\uff0c\u5e94\u5148\u5904\u7406\u6839\u56e0\uff0c\u518d\u7533\u8bf7\u6362<br \/>\nIP\u3002\u5426\u5219\u65b0 IP \u53ef\u80fd\u5f88\u5feb\u51fa\u73b0\u540c\u6837\u95ee\u9898\u3002<\/p>\n<p>\u5efa\u8bae\u68c0\u67e5\uff1a<\/p>\n<div class=\"sourceCode\" id=\"cb10\">\n<pre\nclass=\"sourceCode bash\"><code class=\"sourceCode bash\"><span id=\"cb10-1\"><a href=\"#cb10-1\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> journalctl <span class=\"at\">--since<\/span> <span class=\"st\">&quot;24 hours ago&quot;<\/span><\/span>\n<span id=\"cb10-2\"><a href=\"#cb10-2\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> last<\/span>\n<span id=\"cb10-3\"><a href=\"#cb10-3\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> ss <span class=\"at\">-antup<\/span><\/span>\n<span id=\"cb10-4\"><a href=\"#cb10-4\" aria-hidden=\"true\" tabindex=\"-1\"><\/a><span class=\"fu\">sudo<\/span> find \/var\/log <span class=\"at\">-type<\/span> f <span class=\"at\">-mtime<\/span> <span class=\"at\">-1<\/span><\/span><\/code><\/pre>\n<\/div>\n<p>\u540c\u65f6\u66f4\u65b0\u7cfb\u7edf\u4e0e\u5e94\u7528\u3001\u8f6e\u6362\u6cc4\u9732\u51ed\u636e\u3001\u5173\u95ed\u65e0\u7528\u7aef\u53e3\u3001\u9650\u5236\u7ba1\u7406\u5165\u53e3\uff0c\u5e76\u68c0\u67e5\u4e91\u5e73\u53f0\u6d41\u91cf\u76d1\u63a7\u3002<\/p>\n<h2 id=\"\u5982\u4f55\u964d\u4f4e\u518d\u6b21\u53d1\u751f\u7684\u6982\u7387\">\u5982\u4f55\u964d\u4f4e\u518d\u6b21\u53d1\u751f\u7684\u6982\u7387<\/h2>\n<ul>\n<li>\u53ea\u5f00\u653e\u4e1a\u52a1\u5fc5\u9700\u7aef\u53e3\uff1b<\/li>\n<li>SSH \u4f7f\u7528\u5bc6\u94a5\u8ba4\u8bc1\uff0c\u5e76\u9650\u5236\u7ba1\u7406\u6765\u6e90\uff1b<\/li>\n<li>\u53ca\u65f6\u66f4\u65b0\u7cfb\u7edf\u3001\u9762\u677f\u3001WordPress \u548c\u63d2\u4ef6\uff1b<\/li>\n<li>\u4e3a\u767b\u5f55\u3001API \u548c\u722c\u866b\u8bbe\u7f6e\u5408\u7406\u9650\u901f\uff1b<\/li>\n<li>\u76d1\u63a7\u51fa\u7ad9\u6d41\u91cf\u3001\u8fde\u63a5\u6570\u3001CPU\u3001\u78c1\u76d8\u548c\u5f02\u5e38\u8fdb\u7a0b\uff1b<\/li>\n<li>Web \u4e1a\u52a1\u4f7f\u7528 WAF\u3001CDN \u548c\u6e90\u7ad9\u8bbf\u95ee\u63a7\u5236\uff1b<\/li>\n<li>\u5b9a\u671f\u505a\u5883\u5185\u5916\u591a\u70b9\u53ef\u7528\u6027\u68c0\u6d4b\uff1b<\/li>\n<li>\u51c6\u5907\u5907\u4efd\u3001\u5feb\u7167\u548c\u6062\u590d\u6f14\u7ec3\uff1b<\/li>\n<li>\u5bf9\u5173\u952e\u4e1a\u52a1\u51c6\u5907\u7b2c\u4e8c\u8282\u70b9\u548c\u5207\u6362\u6587\u6863\uff1b<\/li>\n<li>\u9075\u5b88\u7528\u6237\u6240\u5728\u5730\u548c\u670d\u52a1\u5668\u6240\u5728\u5730\u9002\u7528\u7684\u6cd5\u5f8b\u53ca\u670d\u52a1\u6761\u6b3e\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u670d\u52a1\u5668 IP \u7c7b\u578b\uff0c\u53ef\u5148\u9605\u8bfb <a\nhref=\"https:\/\/www.ygcloud.com\/knowledge\/38\/\">\u539f\u751f IP \u548c\u5e7f\u64ad IP<br \/>\n\u7684\u533a\u522b\u4e0e\u68c0\u6d4b\u65b9\u6cd5<\/a>\uff1b\u5982\u679c\u95ee\u9898\u6e90\u4e8e\u914d\u7f6e\u9009\u62e9\uff0c\u53ef\u4ee5\u53c2\u8003 <a\nhref=\"https:\/\/www.ygcloud.com\/knowledge\/857\/\">VPS \u8d2d\u4e70\u914d\u7f6e\u6307\u5357<\/a>\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898\">\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3 id=\"ip-\u88ab\u5899\u540e\u53ea\u80fd\u6362-ip-\u5417\">IP \u88ab\u5899\u540e\u53ea\u80fd\u6362 IP \u5417<\/h3>\n<p>\u4e0d\u4e00\u5b9a\u3002\u5148\u5224\u65ad\u4e1a\u52a1\u7c7b\u578b\u548c\u6839\u56e0\u3002Web \u4e1a\u52a1\u53ef\u80fd\u901a\u8fc7\u6b63\u786e\u914d\u7f6e\u7684 CDN<br \/>\n\u6062\u590d\uff1bDNS\u3001\u5b89\u5168\u7ec4\u3001\u670d\u52a1\u505c\u6b62\u7b49\u95ee\u9898\u5e94\u76f4\u63a5\u4fee\u590d\uff1b\u9700\u8981\u76f4\u63a5\u8fde\u63a5\u8be5\u516c\u7f51 IP<br \/>\n\u7684\u670d\u52a1\uff0c\u786e\u8ba4\u5730\u57df\u6027\u4e0d\u53ef\u8fbe\u540e\u901a\u5e38\u9700\u8981\u66f4\u6362 IP \u6216\u5207\u6362\u8282\u70b9\u3002<\/p>\n<h3 id=\"ip-\u88ab\u5899\u4f1a\u81ea\u5df1\u6062\u590d\u5417\">IP \u88ab\u5899\u4f1a\u81ea\u5df1\u6062\u590d\u5417<\/h3>\n<p>\u65e0\u6cd5\u4fdd\u8bc1\u3002\u77ed\u65f6\u8def\u7531\u6ce2\u52a8\u53ef\u80fd\u81ea\u884c\u6062\u590d\uff0c\u4f46\u6301\u7eed\u7684\u5730\u57df\u6027\u4e0d\u53ef\u8fbe\u4e0d\u5e94\u4f9d\u8d56\u7b49\u5f85\u3002\u5173\u952e\u4e1a\u52a1\u5e94\u5148\u5207\u6362\uff0c\u518d\u7ee7\u7eed\u8c03\u67e5\u3002<\/p>\n<h3 id=\"ping-\u4e0d\u901a\u5c31\u662f-ip-\u88ab\u5899\u5417\">Ping \u4e0d\u901a\u5c31\u662f IP \u88ab\u5899\u5417<\/h3>\n<p>\u4e0d\u662f\u3002ICMP<br \/>\n\u53ef\u80fd\u88ab\u670d\u52a1\u5668\u3001\u9632\u706b\u5899\u6216\u4e2d\u95f4\u7f51\u7edc\u9650\u901f\u548c\u4e22\u5f03\u3002\u5fc5\u987b\u6d4b\u8bd5\u5b9e\u9645\u4e1a\u52a1\u7aef\u53e3\u3002<\/p>\n<h3 id=\"\u7f51\u7ad9\u80fd\u6253\u5f00ssh-\u4e0d\u80fd\u8fde\u63a5\u662f-ip-\u88ab\u5899\u5417\">\u7f51\u7ad9\u80fd\u6253\u5f00\uff0cSSH \u4e0d\u80fd\u8fde\u63a5\uff0c\u662f<br \/>\nIP \u88ab\u5899\u5417<\/h3>\n<p>\u901a\u5e38\u4e0d\u662f\u6574\u4f53 IP \u4e0d\u53ef\u8fbe\uff0c\u66f4\u53ef\u80fd\u662f 22 \u7aef\u53e3\u3001\u5b89\u5168\u7ec4\u3001SSH \u670d\u52a1\u3001Fail2Ban<br \/>\n\u6216\u7ba1\u7406\u6765\u6e90\u9650\u5236\u3002\u5206\u522b\u6d4b\u8bd5\u7aef\u53e3\u5e76\u67e5\u770b\u670d\u52a1\u65e5\u5fd7\u3002<\/p>\n<h3 id=\"\u57df\u540d\u88ab\u6c61\u67d3\u548c-ip-\u88ab\u5899\u662f\u4e00\u56de\u4e8b\u5417\">\u57df\u540d\u88ab\u6c61\u67d3\u548c IP<br \/>\n\u88ab\u5899\u662f\u4e00\u56de\u4e8b\u5417<\/h3>\n<p>\u4e0d\u662f\u3002DNS \u95ee\u9898\u5f71\u54cd\u57df\u540d\u89e3\u6790\uff0cIP \u53ef\u8fbe\u6027\u95ee\u9898\u5f71\u54cd\u5bf9\u5177\u4f53\u5730\u5740\u7684\u8fde\u63a5\u3002\u7528\u6307\u5b9a<br \/>\nIP \u7684<br \/>\n<code>curl --resolve<\/code>\u3001\u4e0d\u540c\u89e3\u6790\u5668\u548c\u76f4\u63a5\u7aef\u53e3\u6d4b\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u533a\u5206\u3002<\/p>\n<h3 id=\"\u6362-ip-\u540e\u8981\u4fee\u6539\u54ea\u4e9b\u5730\u65b9\">\u6362 IP \u540e\u8981\u4fee\u6539\u54ea\u4e9b\u5730\u65b9<\/h3>\n<p>\u81f3\u5c11\u68c0\u67e5 DNS A\/AAAA \u8bb0\u5f55\u3001CDN \u6e90\u7ad9\u3001\u7b2c\u4e09\u65b9\u767d\u540d\u5355\u3001\u652f\u4ed8\u6216 API<br \/>\n\u56de\u8c03\u3001\u76d1\u63a7\u3001\u5907\u4efd\u4efb\u52a1\u3001\u90ae\u4ef6 SPF\u3001\u53cd\u5411 DNS\u3001\u8bc1\u4e66\u9a8c\u8bc1\u548c\u56e2\u961f\u6587\u6863\u3002<\/p>\n<h2 id=\"\u7ed3\u8bba\">\u7ed3\u8bba<\/h2>\n<p>\u5904\u7406\u201cIP<br \/>\n\u88ab\u5899\u201d\u7684\u6b63\u786e\u987a\u5e8f\u662f\uff1a\u5148\u786e\u8ba4\u670d\u52a1\u5668\u548c\u670d\u52a1\u6b63\u5e38\uff0c\u518d\u6392\u9664\u5b89\u5168\u7ec4\u3001\u9632\u706b\u5899\u4e0e<br \/>\nDNS\uff0c\u7136\u540e\u4f7f\u7528\u591a\u5730\u533a\u3001\u591a\u8fd0\u8425\u5546\u548c\u771f\u5b9e\u4e1a\u52a1\u7aef\u53e3\u5bf9\u6bd4\uff0c\u6700\u540e\u624d\u51b3\u5b9a\u6362 IP\u3001\u4e0a CDN<br \/>\n\u6216\u5207\u6362\u5907\u7528\u8282\u70b9\u3002\u628a\u6bcf\u6b21\u68c0\u6d4b\u7ed3\u679c\u4fdd\u5b58\u4e0b\u6765\uff0c\u6bd4\u53ea\u770b\u4e00\u6b21 Ping<br \/>\n\u66f4\u5feb\u627e\u5230\u6839\u56e0\uff0c\u4e5f\u80fd\u907f\u514d\u5728\u6ca1\u6709\u8bc1\u636e\u65f6\u53cd\u590d\u66f4\u6362\u670d\u52a1\u5668\u3002<\/p>\n<h2 id=\"\u53c2\u8003\u8d44\u6599\">\u53c2\u8003\u8d44\u6599<\/h2>\n<ul>\n<li><a\nhref=\"https:\/\/developers.google.com\/speed\/public-dns\/docs\/troubleshooting\">Google<br \/>\nPublic DNS\uff1aDNS \u4e0e\u7f51\u7edc\u6545\u969c\u6392\u67e5<\/a><\/li>\n<li><a\nhref=\"https:\/\/developers.google.com\/speed\/public-dns\/docs\/troubleshooting\/domains\">Google<br \/>\nPublic DNS\uff1a\u57df\u540d\u89e3\u6790\u6545\u969c\u6392\u67e5<\/a><\/li>\n<li><a\nhref=\"https:\/\/developers.cloudflare.com\/dns\/proxy-status\/\">Cloudflare\uff1a\u4ee3\u7406<br \/>\nDNS \u8bb0\u5f55\u5982\u4f55\u9690\u85cf\u6e90\u7ad9 IP<\/a><\/li>\n<\/ul>\n<div class=\"ygcloud-link-update\" 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